Implications of CTEQ global analysis for collider observables (2008)
Nadolsky, P. M., Huston, J., Pumplin, J., Stump, D., ...
The latest CTEQ6.6 parton distributions, obtained by global analysis of hard scattering data in the framework of general-mass perturbative QCD, are employed to study theoretical predictions and their...
Global QCD Analysis and Collider Phenomenology--CTEQ (2007)
Tung, Wu-Ki, Lai, H. L., Pumplin, J., Nadolsky, P.
An overview is given of recent progress on a variety of fronts in the global QCD analysis of the parton structure of the nucleon and its implication for collider phenomenology, carried out by various...
Heavy Quark Mass Effects in PQCD and Heavy Flavor Parton Distributions (2007)
Tung, Wu-Ki, Lai, H. L., Pumplin, J., Nadolsky, P.
The systematic treatment of heavy quark mass effects in DIS in current CTEQ global analysis is summarized. Applications of this treatment to the comparison between theory and experimental data on DIS...
The Strange Parton Distribution of the Nucleon: Global Analysis and Applications (2007)
Lai, H. L., Nadolsky, P., Pumplin, J., Stump, D., Tung, W. K.
The strangeness degrees of freedom in the parton structure of the nucleon are explored in the global analysis framework, using the new CTEQ6.5 implementation of the general mass perturbative QCD...
The impact of new neutrino DIS and Drell-Yan data on large-x parton distributions (2007)
Owens, J. F., Huston, J., Keppel, C. E., Kuhlmann, S., Morfin, J. G., Olness, F., ...
New data sets have recently become available for neutrino and antineutrino deep inelastic scattering on nuclear targets and for inclusive dimuon production in pp pd interactions. These data sets are...
The Charm Parton Content of the Nucleon (2007)
Pumplin, J., Lai, H. L., Tung, W. K.
We investigate the charm sector of the nucleon structure phenomenologically, using the most up-to-date global QCD analysis. Going beyond the common assumption of purely radiatively generated charm,...
Heavy Quark Mass Effects in Deep Inelastic Scattering and Global QCD Analysis (2006)
Tung, W. K., Lai, H. L., Belyaev, A., Pumplin, J., Stump, D.
A new implementation of the general PQCD formalism of Collins, including heavy quark mass effects, is described. Important features that contribute to the accuracy and efficiency of the calculation...
Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., ...
The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to...
Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., ...
The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to...
Parton Distributions: Summary Report (2006)
Dittmar, M., Forte, S., Glazov, A., Moch, S., Alekhin, S., Altarelli, G., ...
We provide an assessment of the impact of parton distributions on the determination of LHC processes, and of the accuracy with which parton distributions (PDFs) can be extracted from data, in...
Buttar, C., Dittmaier, S., Drollinger, V., Frixione, S., Nikitenko, A., Abdullin, S. Willenbrock S., ...
This Report summarises the activities of the "SM and Higgs" working group for the Workshop "Physics at TeV Colliders", Les Houches, France, 2-20 May, 2005. On the one hand, we performed a variety of...
Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., ...
The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to...
Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., ...
The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to...
Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., ...
The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to...
Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., ...
The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to...
Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., ...
The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to...
Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., ...
The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to...
HERA and the LHC - A workshop on the implications of HERA for LHC physics: Proceedings Part A (2006)
S. Alekhin, DESY Forschung Hochenergiephysik, G. Altarelli, N. Amapane, J. Andersen, V. Andreev, ...
Internal report | Preprint
S. Alekhin, DESY Forschung Hochenergiephysik, G. Altarelli, N. Amapane, J. Andersen, V. Andreev, ...
Internal report | Preprint
A.C. Buttar, DESY Forschung Hochenergiephysik, S. Dittmaier, V. Drollinger, S. Frixione, A. Nikitenko, ...
Internal report | Preprint
Parton Distributions and the Strong Coupling Strength: CTEQ6AB PDFs (2005)
Pumplin, J., Belyaev, A., Huston, J., Stump, D., Tung, W. K.
We study the global analysis for parton distributions as a function of the QCD strong coupling strength alpha_s, and present a new series of distributions that span the range 0.110 < alpha_s(m_Z) <...
Parton Distributions: Summary Report (2005)
Dittmar, M, Alekhin, S, Altarelli, Guido, Andersen, J, Ball, R D, Blümlein, J, ...
We provide an assessment of the impact of parton distributions on the determination of LHC processes, and of the accuracy with which parton distributions (PDFs) can be extracted from data, in...
Parton Distributions: Summary Report (2005)
Dittmar, M., Forte, S., Glazov, A., Moch, S., Alekhin, S., Altarelli, G., ...
We provide an assessment of the impact of parton distributions on the determination of LHC processes, and of the accuracy with which parton distributions (PDFs) can be extracted from data, in...
The QCD/SM working group: summary report (2005)
Alekhin, S., Balazs, C., Ball, R., Binoth, T., Boos, E., Botje, M., ...
This Report documents the results obtained by the Working Group on Quantum ChromoDynamics and the Standard Model for the Workshop "Physics at TeV Colliders'', Les Houches, France, 21 May - 1 June...
Stability of NLO Global Analysis and Implications for Hadron Collider Physics (2005)
Huston, J., Pumplin, J., Stump, D., Tung, W. K.
The phenomenology of Standard Model and New Physics at hadron colliders depends critically on results from global QCD analysis for parton distribution functions (PDFs). The accuracy of the standard...
Parton Distributions: Summary Report (2005)
Dittmar, M., Forte, S., Glazov, A., Moch, S., Alekhin, S., Altarelli, G., ...
We provide an assessment of the impact of parton distributions on the determination of LHC processes, and of the accuracy with which parton distributions (PDFs) can be extracted from data, in...
Parton Distributions: Summary Report (2005)
Dittmar, M., Forte, S., Glazov, A., Moch, S., Alekhin, S., Altarelli, G., ...
We provide an assessment of the impact of parton distributions on the determination of LHC processes, and of the accuracy with which parton distributions (PDFs) can be extracted from data, in...
The QCD/SM working group: summary report (2004)
Alekhin, S., Balazs, C., Ball, R., Binoth, T., Boos, E., Botje, M., ...
This Report documents the results obtained by the Working Group on Quantum ChromoDynamics and the Standard Model for the Workshop ``Physics at TeV Colliders'', Les Houches, France, 21 May - 1 June...
Kretzer, S., Olness, F., Pumplin, J., Reno, M. H., Stump, D., Tung, W. K.
A recently completed next-to-leading-order program to calculate neutrino cross sections, including power-suppressed mass correction terms, has been applied to evaluate the Paschos-Wolfenstein...
Neutrino Dimuon Production and the Strangeness Asymmetry of the Nucleon (2003)
Olness, F., Pumplin, J., Stump, D., Huston, J., Nadolsky, P., Lai, H. L., ...
We have performed the first global QCD analysis to include the CCFR and NuTeV dimuon data, which provide direct constraints on the strange and anti-strange parton distributions, $s(x)$ and...
The QCD/SM Working Group: Summary Report (2002)
Alekhin, S., Balazs, C., Ball, R., Binoth, T., Boos, E., Botje, M., ...
This Report documents the results obtained by the Working Group on Quantum ChromoDynamics and the Standard Model for the Workshop ``Physics at TeV Colliders'', Les Houches, France, 21 May - 1 June...
New Generation of Parton Distributions with Uncertainties from Global QCD Analysis (2002)
Pumplin, J., Stump, D. R., Huston, J., Lai, H. L., Nadolsky, P., Tung, W. K.
A new generation of parton distribution functions with increased precision and quantitative estimates of uncertainties is presented. This work significantly extends previous CTEQ and other global...
The QCD/SM working group: summary report (2002)
Alekhin, S., Balazs, C., Ball, R., Binoth, T., Boos, E., Botje, M., ...
This Report documents the results obtained by the Working Group on Quantum ChromoDynamics and the Standard Model for the Workshop "Physics at TeV Colliders'', Les Houches, France, 21 May - 1 June...
The QCD/SM working group: summary report (2002)
Alekhin, S., Balazs, C., Ball, R., Binoth, T., Boos, E., Botje, M., ...
This Report documents the results obtained by the Working Group on Quantum ChromoDynamics and the Standard Model for the Workshop "Physics at TeV Colliders'', Les Houches, France, 21 May - 1 June...
The QCD/SM Working Group: Summary Report (2002)
Alekhin,S., Balazs,C., Ball,R., Binoth,T., Boos,E., Botje,M., ...
This Report documents the results obtained by the Working Group on Quantum ChromoDynamics and the Standard Model for the Workshop ``Physics at TeV Colliders'', Les Houches, France, 21 May - 1 June...
The QCD/SM Working Group: Summary Report (2002)
Alekhin, S., Balazs, C., Ball, R., Binoth, T., Boos, E., Botje, M., ...
This Report documents the results obtained by the Working Group on Quantum ChromoDynamics and the Standard Model for the Workshop ``Physics at TeV Colliders'', Les Houches, France, 21 May - 1 June...
Tests of goodness of fit to multiple data sets (2001)
We propose a new and rather stringent criterion for testing the goodness of fit between a theory and experiment. It is motivated by the paradox that the criterion on \chi^2 for testing a theory is...
Stump, D., Pumplin, J., Brock, R., Casey, D., Huston, J., Kalk, J., ...
We apply the Lagrange Multiplier method to study the uncertainties of physical predictions due to the uncertainties of parton distribution functions (PDFs), using the cross section for W production...
Uncertainties of predictions from parton distribution functions II: the Hessian method (2001)
Pumplin, J., Stump, D., Brock, R., Casey, D., Huston, J., Kalk, J., ...
We develop a general method to quantify the uncertainties of parton distribution functions and their physical predictions, with emphasis on incorporating all relevant experimental constraints. The...
The QCD / SM working group: Summary report (2001)
Giele, W, Glover, EWN, Hinchliffe, I, Huston, J, Laenen, E, Pilon, E, ...
Multivariate Fitting and the Error Matrix in Global Analysis of Data (2000)
Pumplin, J., Stump, D. R., Tung, W. K.
When a large body of data from diverse experiments is analyzed using a theoretical model with many parameters, the standard error matrix method and the general tools for evaluating errors may become...
Large-x Parton Distributions (2000)
Kuhlmann, S., Huston, J., Morfin, J., Olness, F., Pumplin, J., Owens, J. F., ...
Reliable knowledge of parton distributions at large x is crucial for many searches for new physics signals in the next generation of collider experiments. Although these are generally well determined...
Parton Densitites at High-x (2000)
Kuhlmann, S., Huston, J., Morfin, J., Olness, F., Pumplin, J., Owens, J. F., ...
Reliable knowledge of parton distributions at large x is crucial for many searches for new physics signals in the next generation of collider experiments. Although these are generally well determined...
Parton Distributions Working Group (2000)
De Barbaro, L., Berger, E. L., Brock, R., Casey, D., Demina, R., Giele, W. T., ...
The main focus of this working group was to investigate the different issues associated with the development of quantitative tools to estimate parton distribution functions uncertainties. In the...
Uncertainties of Parton Distribution Functions and Their Implications on Physical Predictions (2000)
Brock, R., Casey, D., Huston, J., Kalk, J., Pumplin, J., Stump, D., ...
We describe preliminary results from an effort to quantify the uncertainties in parton distribution functions and the resulting uncertainties in predicted physical quantities. The production cross...
Catani, S., Dittmar, M., Soper, D., Stirling, W. J., Tapprogge, S., Alekhin, S., ...
We discuss issues of QCD at the LHC including parton distributions, Monte Carlo event generators, the available next-to-leading order calculations, resummation, photon production, small x physics,...
Large-x Parton Distributions (1999)
Kuhlmann, S., Huston, J., Morfin, J., Olness, F., Pumplin, J., Owens, J. F., ...
Reliable knowledge of parton distributions at large x is crucial for many searches for new physics signals in the next generation of collider experiments. Although these are generally well determined...
Global QCD Analysis of Parton Structure of the Nucleon: CTEQ5 Parton Distributions (1999)
Lai, H. L., Huston, J., Kuhlmann, S., Morfin, J., Olness, F., Owens, J. F., ...
An up-to-date global QCD analysis of high energy lepton-hadron and hadron-hadron interactions is performed to better determine the gluon and quark parton distributions in the nucleon. Improved...
Optimized Top Quark Analysis with the Decision Tree (1998)
P. Agrawal, D. Bowser-chao, J. Pumplin
We present an optimized and physically motivated method for separating top quark signal events from background events at the Tevatron. For the top quark signal t ¯ t ! e=¯ + 4 jets, we show how to...
Optimized Top Quark Analysis with the Decision Tree (1995)
Agrawal, P., Bowser-Chao, D., Pumplin, J.
We present an optimized and physically motivated method for separating top quark signal events from background events at the Tevatron. For the top quark signal $t\bar t \to e/\mu + 4$ jets, we show...