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Measurements of inclusive W and Z cross sections in collisions at (2007)

Abstract

We report the first measurements of inclusive W and Z boson cross-sections times the corresponding leptonic branching ratios for collisions at TeV based on the decays of the W and Z bosons into electrons and muons. The data were recorded with the CDF II detector at the Fermilab Tevatron and correspond to an integrated luminosity of 72.0 ± 4.3 pb−1. We test e-μ lepton universality in W decays by measuring the ratio of the W → μν to W → eν cross sections and determine a value of 0.991 ± 0.004(stat.) ± 0.011(syst.) for the ratio of W − − ν couplings (gμ/ge). Since there is no sign of non-universality, we combine our cross-section measurements in the different lepton decay modes and obtain nb and pb for dilepton pairs in the mass range between 66 GeV/c2 and 116 GeV/c2. We compute the ratio R of the W → ν to Z → cross sections taking all correlations among channels into account and obtain R = 10.84 ± 0.15(stat.) ± 0.14(syst.) including a correction for the virtual photon exchange component in our measured γ*/Z → cross section. Based on the measured value of R, we extract values for the W leptonic branching ratio, Br(W → ν)= 0.1082 ± 0.0022; the total width of the W boson, Γ(W)= 2092 ± 42 MeV; and the ratio of W and Z boson total widths, Γ(W)/Γ(Z)= 0.838 ± 0.017. In addition, we use our extracted value of Γ(W) whose value depends on various electroweak parameters and certain CKM matrix elements to constrain the Vcs CKM matrix element, |Vcs| = 0.976 ± 0.030.. Peer Reviewed. http://deepblue.lib.umich.edu/bitstream/2027.42/58128/2/g7_12_001.pdf

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Download	, http://hdl.handle.net/2027.42/58128 http://dx.doi.org/10.1088/0954-3899/34/12/001
Publisher	IOP Publishing Ltd
Contributors	University of Michigan, Ann Arbor, MI 48109, USA, University of Michigan, Ann Arbor, MI 48109, USA, University of Michigan, Ann Arbor, MI 48109, USA, University of Michigan, Ann Arbor, MI 48109, USA, University of Michigan, Ann Arbor, MI 48109, USA, University of Michigan, Ann Arbor, MI 48109, USA, University of Michigan, Ann Arbor, MI 48109, USA, University of Michigan, Ann Arbor, MI 48109, USA, University of Michigan, Ann Arbor, MI 48109, USA, University of Michigan, Ann Arbor, MI 48109, USA, University of Michigan, Ann Arbor, MI 48109, USA, University of Michigan, Ann Arbor, MI 48109, USA, University of Michigan, Ann Arbor, MI 48109, USA, University of Michigan, Ann Arbor, MI 48109, USA, University of Michigan, Ann Arbor, MI 48109, USA, University of Illinois, Urbana, IL 61801, USA, University of Florida, Gainesville, FL 32611, USA, Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA, University of California, Santa Barbara, Santa Barbara, CA 93106, USA, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, Fermi National Accelerator Laboratory, Batavia, IL 60510, Fermi National Accelerator Laboratory, Batavia, IL 60510, University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy, Rutgers University, Piscataway, NJ 08855, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, Fermi National Accelerator Laboratory, Batavia, IL 60510, Institute of Particle Physics: McGill University, Montréal, Canada H3A 2T8; University of Toronto, Toronto, Canada M5S 1A7, Waseda University, Tokyo 169, Japan, Joint Institute for Nuclear Research, RU-141980 Dubna, Russia, Fermi National Accelerator Laboratory, Batavia, IL 60510, University of California, Los Angeles, Los Angeles, CA 90024, USA, University of Oxford, Oxford OX1 3RH, UK, University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, Purdue University, West Lafayette, IN 47907, USA, The Johns Hopkins University, Baltimore, MD 21218, USA, University of California, Davis, Davis, CA 95616, USA, University College London, London WC1E 6BT, UK, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, The Johns Hopkins University, Baltimore, MD 21218, USA, Istituto Nazionale di Fisica Nucleare, University of Trieste/Udine, Italy, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, University of Wisconsin, Madison, WI 53706, USA, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Duke University, Durham, NC 27708, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, University of Liverpool, Liverpool L69 7ZE, UK, The Rockefeller University, New York, NY 10021, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy, Fermi National Accelerator Laboratory, Batavia, IL 60510, Argonne National Laboratory, Argonne, IL 60439, USA, Brandeis University, Waltham, MA 02254, USA, The Johns Hopkins University, Baltimore, MD 21218, USA, The Rockefeller University, New York, NY 10021, USA, University of Rochester, Rochester, NY 14627, USA, University of Rochester, Rochester, NY 14627, USA, Purdue University, West Lafayette, IN 47907, USA, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Purdue University, West Lafayette, IN 47907, USA, University of Pittsburgh, Pittsburgh, PA 15260, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, University of California, Santa Barbara, Santa Barbara, CA 93106, USA, University of California, Santa Barbara, Santa Barbara, CA 93106, USA, Michigan State University, East Lansing, MI 48824, USA, Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA, Joint Institute for Nuclear Research, RU-141980 Dubna, Russia, University of Rochester, Rochester, NY 14627, USA, University of Illinois, Urbana, IL 61801, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy, Glasgow University, Glasgow G12 8QQ, UK, Argonne National Laboratory, Argonne, IL 60439, USA, Duke University, Durham, NC 27708, USA, University of Geneva, CH-1211 Geneva 4, Switzerland, University of California, Los Angeles, Los Angeles, CA 90024, USA, Purdue University, West Lafayette, IN 47907, USA, University of Wisconsin, Madison, WI 53706, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Duke University, Durham, NC 27708, USA, Istituto Nazionale di Fisica Nucleare, University of Trieste/Udine, Italy, Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Istituto Nazionale di Fisica Nucleare, University of Trieste/Udine, Italy, Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, University of Oxford, Oxford OX1 3RH, UK, Center for High Energy Physics: Kyungpook National University, Taegu 702-701, South Korea; Seoul National University, Seoul 151-742, South Korea; SungKyunKwan University, Suwon 440-746, Korea, Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China, University of California, Davis, Davis, CA 95616, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Joint Institute for Nuclear Research, RU-141980 Dubna, Russia, Fermi National Accelerator Laboratory, Batavia, IL 60510, Center for High Energy Physics: Kyungpook National University, Taegu 702-701, South Korea; Seoul National University, Seoul 151-742, South Korea; SungKyunKwan University, Suwon 440-746, Korea, Center for High Energy Physics: Kyungpook National University, Taegu 702-701, South Korea; Seoul National University, Seoul 151-742, South Korea; SungKyunKwan University, Suwon 440-746, Korea, Joint Institute for Nuclear Research, RU-141980 Dubna, Russia, Harvard University, Cambridge, MA 02138, USA, University of Illinois, Urbana, IL 61801, USA, University of Wisconsin, Madison, WI 53706, USA, Carnegie Mellon University, Pittsburgh, PA 15213, USA, University of Wisconsin, Madison, WI 53706, USA, University of Rochester, Rochester, NY 14627, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, University of Illinois, Urbana, IL 61801, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, University of Geneva, CH-1211 Geneva 4, Switzerland, Brandeis University, Waltham, MA 02254, USA, Duke University, Durham, NC 27708, USA, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, The Rockefeller University, New York, NY 10021, USA, University of California, Davis, Davis, CA 95616, USA, University College London, London WC1E 6BT, UK, Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy, University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy, University of Florida, Gainesville, FL 32611, USA, Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain, Fermi National Accelerator Laboratory, Batavia, IL 60510, University of Wisconsin, Madison, WI 53706, USA, University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy, Glasgow University, Glasgow G12 8QQ, UK, University of Geneva, CH-1211 Geneva 4, Switzerland, Brandeis University, Waltham, MA 02254, USA, University of Rochester, Rochester, NY 14627, USA, Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ‘La Sapienza’, I-00185 Roma, Italy, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, University of Rochester, Rochester, NY 14627, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, University of Rochester, Rochester, NY 14627, USA, The Rockefeller University, New York, NY 10021, USA, Duke University, Durham, NC 27708, USA, Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy, Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ‘La Sapienza’, I-00185 Roma, Italy, Fermi National Accelerator Laboratory, Batavia, IL 60510, Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ‘La Sapienza’, I-00185 Roma, Italy, Baylor University, Waco, TX 76798, USA, Rutgers University, Piscataway, NJ 08855, USA, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, University of Geneva, CH-1211 Geneva 4, Switzerland, University of California, Los Angeles, Los Angeles, CA 90024, USA, University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy, University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy, Rutgers University, Piscataway, NJ 08855, USA, Waseda University, Tokyo 169, Japan, The Ohio State University, Columbus, OH 43210, USA, University of Geneva, CH-1211 Geneva 4, Switzerland, University of California, Davis, Davis, CA 95616, USA, University of Illinois, Urbana, IL 61801, USA, University of Illinois, Urbana, IL 61801, USA, University of Rochester, Rochester, NY 14627, USA, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, University of Liverpool, Liverpool L69 7ZE, UK, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA, Yale University, New Haven, CT 06520, USA, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, Purdue University, West Lafayette, IN 47907, USA, University of Florida, Gainesville, FL 32611, USA, Michigan State University, East Lansing, MI 48824, USA, University of Pittsburgh, Pittsburgh, PA 15260, USA, Harvard University, Cambridge, MA 02138, USA, University of California, Davis, Davis, CA 95616, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Harvard University, Cambridge, MA 02138, USA, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305, Japan, Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA, University of Liverpool, Liverpool L69 7ZE, UK, The Rockefeller University, New York, NY 10021, USA, Carnegie Mellon University, Pittsburgh, PA 15213, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, Purdue University, West Lafayette, IN 47907, USA, Yale University, New Haven, CT 06520, USA, University of Illinois, Urbana, IL 61801, USA, Carnegie Mellon University, Pittsburgh, PA 15213, USA, Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ‘La Sapienza’, I-00185 Roma, Italy, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, Carnegie Mellon University, Pittsburgh, PA 15213, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Purdue University, West Lafayette, IN 47907, USA, Istituto Nazionale di Fisica Nucleare, University of Trieste/Udine, Italy, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Carnegie Mellon University, Pittsburgh, PA 15213, USA, Joint Institute for Nuclear Research, RU-141980 Dubna, Russia, Fermi National Accelerator Laboratory, Batavia, IL 60510, University of New Mexico, Albuquerque, NM 87131, USA, University of Oxford, Oxford OX1 3RH, UK, Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain, Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain, Texas A&M University, College Station, TX 77843, USA, Purdue University, West Lafayette, IN 47907, USA, University of New Mexico, Albuquerque, NM 87131, USA, Duke University, Durham, NC 27708, USA, University of Pittsburgh, Pittsburgh, PA 15260, USA, The Rockefeller University, New York, NY 10021, USA, University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy, University of Liverpool, Liverpool L69 7ZE, UK, Harvard University, Cambridge, MA 02138, USA, Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA, University of Illinois, Urbana, IL 61801, USA, Harvard University, Cambridge, MA 02138, USA, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, University of Pennsylvania, Philadelphia, PA 19104, USA, University of Rochester, Rochester, NY 14627, USA, Institute of Particle Physics: McGill University, Montréal, Canada H3A 2T8; University of Toronto, Toronto, Canada M5S 1A7, University of Rochester, Rochester, NY 14627, USA, University of Wisconsin, Madison, WI 53706, USA, Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, Tufts University, Medford, MA 02155, USA, University of Oxford, Oxford OX1 3RH, UK, Wayne State University, Detroit, MI 48201, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, The Rockefeller University, New York, NY 10021, USA, University of California, Los Angeles, Los Angeles, CA 90024, USA, Duke University, Durham, NC 27708, USA, University of Liverpool, Liverpool L69 7ZE, UK, University of Pennsylvania, Philadelphia, PA 19104, USA, University of Liverpool, Liverpool L69 7ZE, UK, University of Pennsylvania, Philadelphia, PA 19104, USA, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, University of Wisconsin, Madison, WI 53706, USA, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, Duke University, Durham, NC 27708, USA, University of California, Santa Barbara, Santa Barbara, CA 93106, USA, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, Fermi National Accelerator Laboratory, Batavia, IL 60510, Harvard University, Cambridge, MA 02138, USA, Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China, University of Liverpool, Liverpool L69 7ZE, UK, University of California, San Diego, La Jolla, CA 92093, USA, University of Oxford, Oxford OX1 3RH, UK, The Ohio State University, Columbus, OH 43210, USA, Michigan State University, East Lansing, MI 48824, USA, Waseda University, Tokyo 169, Japan, University of California, Santa Barbara, Santa Barbara, CA 93106, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ‘La Sapienza’, I-00185 Roma, Italy, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, University of California, Davis, Davis, CA 95616, USA, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Rutgers University, Piscataway, NJ 08855, USA, Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ‘La Sapienza’, I-00185 Roma, Italy, Fermi National Accelerator Laboratory, Batavia, IL 60510, Center for High Energy Physics: Kyungpook National University, Taegu 702-701, South Korea; Seoul National University, Seoul 151-742, South Korea; SungKyunKwan University, Suwon 440-746, Korea, Purdue University, West Lafayette, IN 47907, USA, Center for High Energy Physics: Kyungpook National University, Taegu 702-701, South Korea; Seoul National University, Seoul 151-742, South Korea; SungKyunKwan University, Suwon 440-746, Korea, Carnegie Mellon University, Pittsburgh, PA 15213, USA, University of Illinois, Urbana, IL 61801, USA, Texas A&M University, College Station, TX 77843, USA, Northwestern University, Evanston, IL 60208, USA, Wayne State University, Detroit, MI 48201, USA, Osaka City University, Osaka 588, Japan, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, Fermi National Accelerator Laboratory, Batavia, IL 60510, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, Texas A&M University, College Station, TX 77843, USA, The Ohio State University, Columbus, OH 43210, USA, Center for High Energy Physics: Kyungpook National University, Taegu 702-701, South Korea; Seoul National University, Seoul 151-742, South Korea; SungKyunKwan University, Suwon 440-746, Korea, Center for High Energy Physics: Kyungpook National University, Taegu 702-701, South Korea; Seoul National University, Seoul 151-742, South Korea; SungKyunKwan University, Suwon 440-746, Korea, Center for High Energy Physics: Kyungpook National University, Taegu 702-701, South Korea; Seoul National University, Seoul 151-742, South Korea; SungKyunKwan University, Suwon 440-746, Korea, Carnegie Mellon University, Pittsburgh, PA 15213, USA, Center for High Energy Physics: Kyungpook National University, Taegu 702-701, South Korea; Seoul National University, Seoul 151-742, South Korea; SungKyunKwan University, Suwon 440-746, Korea, Center for High Energy Physics: Kyungpook National University, Taegu 702-701, South Korea; Seoul National University, Seoul 151-742, South Korea; SungKyunKwan University, Suwon 440-746, Korea, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA, Duke University, Durham, NC 27708, USA, Brandeis University, Waltham, MA 02254, USA, University of Florida, Gainesville, FL 32611, USA, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Duke University, Durham, NC 27708, USA, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, Waseda University, Tokyo 169, Japan, Center for High Energy Physics: Kyungpook National University, Taegu 702-701, South Korea; Seoul National University, Seoul 151-742, South Korea; SungKyunKwan University, Suwon 440-746, Korea, University of Florida, Gainesville, FL 32611, USA, University of Florida, Gainesville, FL 32611, USA, Duke University, Durham, NC 27708, USA, University of Pennsylvania, Philadelphia, PA 19104, USA, University of Illinois, Urbana, IL 61801, USA, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, Fermi National Accelerator Laboratory, Batavia, IL 60510, University of Pennsylvania, Philadelphia, PA 19104, USA, Baylor University, Waco, TX 76798, USA, Duke University, Durham, NC 27708, USA, Texas A&M University, College Station, TX 77843, USA, Argonne National Laboratory, Argonne, IL 60439, USA, Waseda University, Tokyo 169, Japan, Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA, Purdue University, West Lafayette, IN 47907, USA, Institute of Particle Physics: McGill University, Montréal, Canada H3A 2T8; University of Toronto, Toronto, Canada M5S 1A7, The Rockefeller University, New York, NY 10021, USA, The Rockefeller University, New York, NY 10021, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, University College London, London WC1E 6BT, UK, University of California, Davis, Davis, CA 95616, USA, The Ohio State University, Columbus, OH 43210, USA, Rutgers University, Piscataway, NJ 08855, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, Argonne National Laboratory, Argonne, IL 60439, USA, University of Rochester, Rochester, NY 14627, USA, University of Rochester, Rochester, NY 14627, USA, Texas A&M University, College Station, TX 77843, USA, Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Yale University, New Haven, CT 06520, USA, Yale University, New Haven, CT 06520, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Fermi National Accelerator Laboratory, Batavia, IL 60510, University of California, San Diego, La Jolla, CA 92093, USA, University of Illinois, Urbana, IL 61801, USA, University of Geneva, CH-1211 Geneva 4, Switzerland, Fermi National Accelerator Laboratory, Batavia, IL 60510, Fermi National Accelerator Laboratory, Batavia, IL 60510, University of Geneva, CH-1211 Geneva 4, Switzerland, University of Pennsylvania, Philadelphia, PA 19104, USA, Institution for Theoretical and Experimental Physics, ITEP, Moscow 117259, Russia, University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy, Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ‘La Sapienza’, I-00185 Roma, Italy, Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China, University of Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova-Trento, I-35131 Padova, Italy, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, University of Florida, Gainesville, FL 32611, USA, University of Oxford, Oxford OX1 3RH, UK, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China, Purdue University, West Lafayette, IN 47907, USA, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, Institute of Particle Physics: McGill University, Montréal, Canada H3A 2T8; University of Toronto, Toronto, Canada M5S 1A7, Fermi National Accelerator Laboratory, Batavia, IL 60510, Fermi National Accelerator Laboratory, Batavia, IL 60510, The Johns Hopkins University, Baltimore, MD 21218, USA, University of Liverpool, Liverpool L69 7ZE, UK, Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy, Fermi National Accelerator Laboratory, Batavia, IL 60510, University of Illinois, Urbana, IL 61801, USA, Yale University, New Haven, CT 06520, USA, The Johns Hopkins University, Baltimore, MD 21218, USA, Northwestern University, Evanston, IL 60208, USA, Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, Wayne State University, Detroit, MI 48201, USA, Institute of Particle Physics: McGill University, Montréal, Canada H3A 2T8; University of Toronto, Toronto, Canada M5S 1A7, Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy, University of Rochester, Rochester, NY 14627, USA, University College London, London WC1E 6BT, UK, Texas A&M University, College Station, TX 77843, USA, Rutgers University, Piscataway, NJ 08855, USA, University of Liverpool, Liverpool L69 7ZE, UK, University of Liverpool, Liverpool L69 7ZE, UK, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Purdue University, West Lafayette, IN 47907, USA, The Rockefeller University, New York, NY 10021, USA, Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ‘La Sapienza’, I-00185 Roma, Italy, University of California, Los Angeles, Los Angeles, CA 90024, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Brandeis University, Waltham, MA 02254, USA, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Michigan State University, East Lansing, MI 48824, USA, University of California, Santa Barbara, Santa Barbara, CA 93106, USA, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy, University of Florida, Gainesville, FL 32611, USA, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305, Japan, Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy, University of California, Los Angeles, Los Angeles, CA 90024, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, The Johns Hopkins University, Baltimore, MD 21218, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Fermi National Accelerator Laboratory, Batavia, IL 60510, Yale University, New Haven, CT 06520, USA, Okayama University, Okayama 700-8530, Japan, Tufts University, Medford, MA 02155, USA, University of New Mexico, Albuquerque, NM 87131, USA, University of Florida, Gainesville, FL 32611, USA, University of Pennsylvania, Philadelphia, PA 19104, USA, University of California, San Diego, La Jolla, CA 92093, USA, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, University of Pittsburgh, Pittsburgh, PA 15260, USA, Argonne National Laboratory, Argonne, IL 60439, USA, Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain, Waseda University, Tokyo 169, Japan, Duke University, Durham, NC 27708, USA, Center for High Energy Physics: Kyungpook National University, Taegu 702-701, South Korea; Seoul National University, Seoul 151-742, South Korea; SungKyunKwan University, Suwon 440-746, Korea, Osaka City University, Osaka 588, Japan, University of Liverpool, Liverpool L69 7ZE, UK, Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland, Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Fermi National Accelerator Laboratory, Batavia, IL 60510, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA, The Ohio State University, Columbus, OH 43210, USA, Institute of Particle Physics: McGill University, Montréal, Canada H3A 2T8; University of Toronto, Toronto, Canada M5S 1A7, Fermi National Accelerator Laboratory, Batavia, IL 60510, Istituto Nazionale di Fisica Nucleare, University of Trieste/Udine, Italy, Carnegie Mellon University, Pittsburgh, PA 15213, USA, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, University of California, Davis, Davis, CA 95616, USA, Istituto Nazionale di Fisica Nucleare, University of Trieste/Udine, Italy, Duke University, Durham, NC 27708, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain, University of Illinois, Urbana, IL 61801, USA, University of California, Los Angeles, Los Angeles, CA 90024, USA, University of Wisconsin, Madison, WI 53706, USA, University of Pittsburgh, Pittsburgh, PA 15260, USA, Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain, Joint Institute for Nuclear Research, RU-141980 Dubna, Russia, University of Oxford, Oxford OX1 3RH, UK, Joint Institute for Nuclear Research, RU-141980 Dubna, Russia, Fermi National Accelerator Laboratory, Batavia, IL 60510, Argonne National Laboratory, Argonne, IL 60439, USA, Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, The Johns Hopkins University, Baltimore, MD 21218, USA, University of Oxford, Oxford OX1 3RH, UK, University of Pittsburgh, Pittsburgh, PA 15260, USA, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Harvard University, Cambridge, MA 02138, USA, Rutgers University, Piscataway, NJ 08855, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, University of New Mexico, Albuquerque, NM 87131, USA, Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland, University of Oxford, Oxford OX1 3RH, UK, Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ‘La Sapienza’, I-00185 Roma, Italy, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Duke University, Durham, NC 27708, USA, Glasgow University, Glasgow G12 8QQ, UK, Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain, University of Illinois, Urbana, IL 61801, USA, Tufts University, Medford, MA 02155, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Istituto Nazionale di Fisica Nucleare, University of Trieste/Udine, Italy, University of Florida, Gainesville, FL 32611, USA, Purdue University, West Lafayette, IN 47907, USA, Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain, Carnegie Mellon University, Pittsburgh, PA 15213, USA, Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA, Tufts University, Medford, MA 02155, USA, Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland, Institute of Particle Physics: McGill University, Montréal, Canada H3A 2T8; University of Toronto, Toronto, Canada M5S 1A7, University of California, Davis, Davis, CA 95616, USA, University of Rochester, Rochester, NY 14627, USA, Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ‘La Sapienza’, I-00185 Roma, Italy, Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain, University of California, Los Angeles, Los Angeles, CA 90024, USA, Institut de Fisica d'Altes Energies, Universitat Autonoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain, Istituto Nazionale di Fisica Nucleare, University of Trieste/Udine, Italy, Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ‘La Sapienza’, I-00185 Roma, Italy, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, Institute of Particle Physics: McGill University, Montréal, Canada H3A 2T8; University of Toronto, Toronto, Canada M5S 1A7, Fermi National Accelerator Laboratory, Batavia, IL 60510, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, Fermi National Accelerator Laboratory, Batavia, IL 60510, Fermi National Accelerator Laboratory, Batavia, IL 60510, Yale University, New Haven, CT 06520, USA, Northwestern University, Evanston, IL 60208, USA, Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain, University of California, Santa Barbara, Santa Barbara, CA 93106, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Purdue University, West Lafayette, IN 47907, USA, University of New Mexico, Albuquerque, NM 87131, USA, Osaka City University, Osaka 588, Japan, Joint Institute for Nuclear Research, RU-141980 Dubna, Russia, Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy, Fermi National Accelerator Laboratory, Batavia, IL 60510, Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, University of Liverpool, Liverpool L69 7ZE, UK, University of Pittsburgh, Pittsburgh, PA 15260, USA, Harvard University, Cambridge, MA 02138, USA, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA, University of Wisconsin, Madison, WI 53706, USA, Institution for Theoretical and Experimental Physics, ITEP, Moscow 117259, Russia, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Institute of Particle Physics: McGill University, Montréal, Canada H3A 2T8; University of Toronto, Toronto, Canada M5S 1A7, Joint Institute for Nuclear Research, RU-141980 Dubna, Russia, University of Oxford, Oxford OX1 3RH, UK, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, Fermi National Accelerator Laboratory, Batavia, IL 60510, Tufts University, Medford, MA 02155, USA, University of New Mexico, Albuquerque, NM 87131, USA, University of California, Davis, Davis, CA 95616, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Institute of Particle Physics: McGill University, Montréal, Canada H3A 2T8; University of Toronto, Toronto, Canada M5S 1A7, University of California, Davis, Davis, CA 95616, USA, Rutgers University, Piscataway, NJ 08855, USA, Michigan State University, East Lansing, MI 48824, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Yale University, New Haven, CT 06520, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Glasgow University, Glasgow G12 8QQ, UK, University of California, Los Angeles, Los Angeles, CA 90024, USA, Institute of Particle Physics: McGill University, Montréal, Canada H3A 2T8; University of Toronto, Toronto, Canada M5S 1A7, Northwestern University, Evanston, IL 60208, USA, University of New Mexico, Albuquerque, NM 87131, USA, University of California, Santa Barbara, Santa Barbara, CA 93106, USA, Center for High Energy Physics: Kyungpook National University, Taegu 702-701, South Korea; Seoul National University, Seoul 151-742, South Korea; SungKyunKwan University, Suwon 440-746, Korea, University of Florida, Gainesville, FL 32611, USA, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Tufts University, Medford, MA 02155, USA, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, University of Illinois, Urbana, IL 61801, USA, Institute of Particle Physics: McGill University, Montréal, Canada H3A 2T8; University of Toronto, Toronto, Canada M5S 1A7, Okayama University, Okayama 700-8530, Japan, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, Argonne National Laboratory, Argonne, IL 60439, USA, Okayama University, Okayama 700-8530, Japan, Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China, The Rockefeller University, New York, NY 10021, USA, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Glasgow University, Glasgow G12 8QQ, UK, University of Pennsylvania, Philadelphia, PA 19104, USA, University of Rochester, Rochester, NY 14627, USA, Carnegie Mellon University, Pittsburgh, PA 15213, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Texas A&M University, College Station, TX 77843, USA, Michigan State University, East Lansing, MI 48824, USA, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Michigan State University, East Lansing, MI 48824, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, Fermi National Accelerator Laboratory, Batavia, IL 60510, Fermi National Accelerator Laboratory, Batavia, IL 60510, Institute of Particle Physics: McGill University, Montréal, Canada H3A 2T8; University of Toronto, Toronto, Canada M5S 1A7, Waseda University, Tokyo 169, Japan, Okayama University, Okayama 700-8530, Japan, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, Glasgow University, Glasgow G12 8QQ, UK, University of Tsukuba, Tsukuba, Ibaraki 305, Japan, University of Pennsylvania, Philadelphia, PA 19104, USA, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, University of Rochester, Rochester, NY 14627, USA, University of Geneva, CH-1211 Geneva 4, Switzerland, University of New Mexico, Albuquerque, NM 87131, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, University of Illinois, Urbana, IL 61801, USA, Purdue University, West Lafayette, IN 47907, USA, University of Illinois, Urbana, IL 61801, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain, Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain, Institute of Particle Physics: McGill University, Montréal, Canada H3A 2T8; University of Toronto, Toronto, Canada M5S 1A7, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, University of California, San Diego, La Jolla, CA 92093, USA, Texas A&M University, College Station, TX 77843, USA, Argonne National Laboratory, Argonne, IL 60439, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, University of California, Los Angeles, Los Angeles, CA 90024, USA, Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany, Rutgers University, Piscataway, NJ 08855, USA, Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China, University of Florida, Gainesville, FL 32611, USA, Institute of Particle Physics: McGill University, Montréal, Canada H3A 2T8; University of Toronto, Toronto, Canada M5S 1A7, Glasgow University, Glasgow G12 8QQ, UK, Glasgow University, Glasgow G12 8QQ, UK, University College London, London WC1E 6BT, UK, Rutgers University, Piscataway, NJ 08855, USA, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Tufts University, Medford, MA 02155, USA, University of Pennsylvania, Philadelphia, PA 19104, USA, Argonne National Laboratory, Argonne, IL 60439, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, University of Pennsylvania, Philadelphia, PA 19104, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, The Ohio State University, Columbus, OH 43210, USA, University of Pennsylvania, Philadelphia, PA 19104, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA, Rutgers University, Piscataway, NJ 08855, USA, University of Geneva, CH-1211 Geneva 4, Switzerland, University of Liverpool, Liverpool L69 7ZE, UK, Fermi National Accelerator Laboratory, Batavia, IL 60510, Osaka City University, Osaka 588, Japan, Rutgers University, Piscataway, NJ 08855, USA, Okayama University, Okayama 700-8530, Japan, Yale University, New Haven, CT 06520, USA, Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Fermi National Accelerator Laboratory, Batavia, IL 60510, Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA, Osaka City University, Osaka 588, Japan, Center for High Energy Physics: Kyungpook National University, Taegu 702-701, South Korea; Seoul National University, Seoul 151-742, South Korea; SungKyunKwan University, Suwon 440-746, Korea, University of Pennsylvania, Philadelphia, PA 19104, USA, Fermi National Accelerator Laboratory, Batavia, IL 60510, Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, University of Rome ‘La Sapienza’, I-00185 Roma, Italy, Istituto Nazionale di Fisica Nucleare, University of Trieste/Udine, Italy, Harvard University, Cambridge, MA 02138, USA, Istituto Nazionale di Fisica Nucleare Pisa, Universities of Pisa, Siena and Scuola Normale Superiore, I-56127 Pisa, Italy, University of Illinois, Urbana, IL 61801, USA, Rutgers University, Piscataway, NJ 08855, USA, Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy, Ann Arbor
Repository	University of Michigan (United States)
Keywords	Physics, Science