J. Schacher

Publication List Details

Period

1982 - 2009

Number

154

Co-Authors

Evidence for $\pi K$-atoms with DIRAC (2009)

Adeva, B., Afanasyev, L., Allkofer, Y., Amsler, C., Anania, A., Benelli, A., ...

We present evidence for the first observation of electromagnetically bound $\pi^\pm K^\mp$-pairs ($\pi K$-atoms) with the DIRAC experiment at the CERN-PS. The $\pi K$-atoms are produced by the 24...

Centrality dependence of K+ produced in Pb+Pb collisions at 158 GeV per nucleon (2007)

Arsenescu, R., Baglin, C., P. Beck, H., Borer, K., Bussiere, A., Elsener, K., ...

The NA52 collaboration searches for a discontinuous behaviour of charged kaons produced in Pb+Pb collisions at 158 A GeV as a function of the impact parameter, which could reveal a hadron to...

First measurement of the $\pi^+\pi^-$ atom lifetime (2006)

Adeva, B., Afanasyev, L., Benayoun, M., Benelli, A., Berka, Z., Brekhovskikh, V., ...

The goal of the DIRAC experiment at CERN (PS212) is to measure the $\pi^+\pi^-$ atom lifetime with 10% precision. Such a measurement would yield a precision of 5% on the value of the $S$-wave...

HadAtom05, Workshop on Hadronic Atoms (2005)

Afanasyev, L., Colangelo, G., Schacher, J.

These are the proceedings of the workshop "HadAtom05", held at the University of Bern, Switzerland, February 15 and 16, 2005. The main topics of the workshop concerned the physics of hadronic atoms,...

HadAtom03 (2004)

Gasser, J., Rusetsky, A., Schacher, J.

These are the proceedings of the workshop "HadAtom03," held at the European Centre for Theoretical Nuclear Physics and Related Studies (ECT*), Trento (Italy), October 13 - 17, 2003. The main topics...

Hadronic Atoms ECT (2003)

Gasser, J, Rusetsky, A, Schacher, J

These are the proceedings of the workshop "HadAtom03," held at the European Centre for Theoretical Nuclear Physics and Related Studies (ECT*), Trento (Italy), October 13 - 17, 2003. The main topics...

HadAtom02 (2003)

Afanasiev, L G, Schacher, J, Lanaro, A

These are the proceedings of the workshop "HadAtom02", held at the CERN, October 14 - 15, 2002. The main topic of the workshop concerned the physics of hadronic atoms and in this contest recent...

HadAtom02 (2003)

Afanasyev, L., Lanaro, A., Schacher, J.

These are the proceedings of the workshop "HadAtom02", held at the CERN, October 14 - 15, 2002. The main topic of the workshop concerned the physics of hadronic atoms and in this contest recent...

HadAtom02 (2003)

Afanasiev, L G, Lanaro, A, Schacher, J

These are the proceedings of the workshop "HadAtom02", held at the CERN, October 14 - 15, 2002. The main topic of the workshop concerned the physics of hadronic atoms and in this contest recent...

HadAtom01 (2001)

Gasser, J., Rusetsky, A., Schacher, J.

These are the proceedings of the workshop "HadAtom01", held at the Institut fuer Theoretische Physik, Universitaet Bern, October 11 - 12, 2001. The main topics discussed at the workshop were the...

Antimatter and Matter Production in Heavy Ion Collisions at CERN (The NEWMASS Experiment NA52) (2000)

Ambrosini, G., Arsenescu, R., Baglin, C., Beck, H. P., Borer, K., Bussiere, A., ...

Besides the dedicated search for strangelets NA52 measures light (anti)particle and (anti)nuclei production over a wide range of rapidity. Compared to previous runs the statistics has been increased...

Centrality dependence of K+ produced in Pb+Pb collisions at 158 GeV per nucleon (2000)

Arsenescu, R, Baglin, C, Beck, H P, Borer, K, Bussière, A, Elsener, K, ...

The NA52 collaboration searches for a discontinuous behaviour of charged kaons produced in Pb+Pb collisions at 158 A GeV as a function of the impact parameter, which could reveal a hadron to...

Centrality dependence of K+ produced in Pb+Pb collisions at 158 GeV per nucleon (2000)

Baglin, C., Beck, H. P., Borer, K., Bussiere, A., Elsener, K., ...

The NA52 collaboration searches for a discontinuous behaviour of charged kaons produced in Pb+Pb collisions at 158 A GeV as a function of the impact parameter, which could reveal a hadron to...

Centrality dependence of K+ produced in Pb+Pb collisions at 158 GeV per nucleon (2000)

Beck, H. P., Borer, K., Kabana, S., Klingenberg, R., Lehmann, G., ...

The NA52 collaboration searches for a discontinuous behaviour of charged kaons produced in Pb+Pb collisions at 158 A GeV as a function of the impact parameter, which could reveal a hadron to...

Experimental status of pionium at CERN (2000)

Schacher, J

The DIRAC Collaboration presents a first search for "atomic pi(+) pi(-) pairs" from ionization of pionium.

Experimental status of pionium at CERN (2000)

Schacher, J., Collaboration, DIRAC

The DIRAC Collaboration presents a first search for "atomic pi(+) pi(-) pairs" from ionization of pionium.

DIRAC Experiment and Test of Low-Energy QCD (2000)

Pentia, M, Adeva, B, Afanasiev, L G, Benayoun, M, Brekhovskikh, V, Caragheorgheopol, G, ...

The low-energy QCD predictions to be tested by the DIRAC experiment are revised. The experimental method, the setup characteristics and capabilities, along with first experimental results are...

HadAtom99 (1999)

Gasser, J., Rusetsky, A., Schacher, J.

These are the proceedings of the workshop "HadAtom99", held at the Institut fuer Theoretische Physik, Universitaet Bern, October 14-15, 1999. The main topics discussed at the workshop were the...

Charged pion production in fixed target Pb + Pb collisions at 158 GeV per nucleon (1999)

Ambrosini, G., Arsenescu, R., Baglin, C., Beringer, J., Böhm, C., Borer, Kurt, ...

Changes in pion production as a function of the impact parameter of the collision or the incident energy, may reveal characteristics of a possible first-order phase transition from nuclear to quark...

Charged pion production in fixed target Pb + Pb collisions at 158 GeV per nucleon (1999)

Ambrosini, G., Arsenescu, R., Baglin, C., Beringer, J., Böhm, C., Borer, Kurt, ...

Changes in pion production as a function of the impact parameter of the collision or the incident energy, may reveal characteristics of a possible first-order phase transition from nuclear to quark...

Charged pion production in fixed target Pb + Pb collisions at 158 GeV per nucleon (1999)

Ambrosini, G., Arsenescu, R., Baglin, C., Beringer, J., Böhm, C., Borer, Kurt, ...

Changes in pion production as a function of the impact parameter of the collision or the incident energy, may reveal characteristics of a possible first-order phase transition from nuclear to quark...

Charged pion production in fixed target Pb + Pb collisions at 158 GeV per nucleon (1999)

Ambrosini, G., Arsenescu, R., Baglin, C., Beringer, J., Böhm, C., Borer, Kurt, ...

Changes in pion production as a function of the impact parameter of the collision or the incident energy, may reveal characteristics of a possible first-order phase transition from nuclear to quark...

Charged pion production in fixed target Pb + Pb collisions at 158 GeV per nucleon (1999)

Ambrosini, G., Arsenescu, R., Baglin, C., Beringer, J., Böhm, C., Borer, Kurt, ...

Changes in pion production as a function of the impact parameter of the collision or the incident energy, may reveal characteristics of a possible first-order phase transition from nuclear to quark...

DIRAC Experiment at CERN (1998)

Schacher, J

The DIRAC experiment, a magnetic double arm spectrometer, aims to measure the GeV/c proton beam of the CERN Proton Synchrotron. Since the value of this lifetime of order $10^{-15}$~s is dictated by...

DIRAC Experiment at CERN: Lifetime Measurement of Pionium (1998)

Schacher, J

The DIRAC experiment, a magnetic double arm spectrometer, aims to measure the GeV/c proton beam of the CERN Proton Synchrotron. Since the value of this lifetime of order $10^{-15}$~s is dictated by...

Pion yield from 450 GeV/c protons on beryllium (1998)

Ambrosini, G, Arsenescu, R, Bernier, K, Biino, C, Bonesini, M, Bonivento, W, ...

This paper reports on the charged pion production yields measured by the SPY/NA56 experiment for 450 GeV/c proton interactions on beryllium targets. The present data cover a secondary momentum range...

$K/\pi$ production ratios from 450 GeV/c protons on beryllium (1998)

Ambrosini, G, Arsenescu, R, Bernier, K, Biino, C, Bonesini, M, Bonivento, W, ...

This paper reports on the charged $K/\pi$ production ratios and on the shape of the $p_T$ distributions of $\pi$ fluxes measured by the SPY/NA56 experiment for 450 GeV/c proton interactions on bery...

Working group on $\pi\pi$ and $\pi$N interactions - Summary (1997)

Meißner, Ulf-G., Sevior, Martin, Badertscher, A., Borasoy, B., Büttiker, P., Höhler, G., ...

This is the summary of the working group on $\pi\pi$ and $\pi$N interactions of the Chiral Dynamics Workshop in Mainz, September 1-5, 1997. Each talk is represented by an extended one page abstract....