1. Measurement of the cross section for high-pThadron production in the scattering of160−GeV/cmuons off nucleons
- Author
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S. Grabmüller, A. Srnka, Michael Kramer, J. Pochodzalla, Ch. Höppner, P.D. Eversheim, J.H. Koivuniemi, M. V. Zavertyaev, C. Marchand, T. Negrini, V. Frolov, K. Schmidt, J.M. Friedrich, V. Rapatsky, Andrea Ferrero, P. Schiavon, Achim Richter, Norihiro Doshita, N. d'Hose, J. Bisplinghoff, S. Koblitz, C. Adolph, R. Jahn, L. Schmitt, I. Uman, S. Takekawa, Oleg V. Ivanov, Miroslav Sulc, F. Hinterberger, D. Kang, K. Königsmann, L. Lauser, A. Maggiora, S. Ramos, François Herrmann, Vladimir Nikolaenko, A. N. Sissakian, A.G. Olshevsky, L. Steiger, A. Padee, G.V. Khaustov, E. Zemlyanichkina, A. Bressan, W. Schröder, O.P. Gavrichtchouk, N. Horikawa, T. Nagel, Yu.V. Mikhailov, L. Sinha, T. Matsuda, N.V. Vlassov, S.S. Dasgupta, R. Gushterski, A.A. Lednev, W. Meyer, Maria Liz Crespo, I.A. Savin, Sergey Donskov, K. Schönning, Alexey Antonov, M. Slunečka, Günter Baum, O.Yu. Shevchenko, S. Levorato, T. Michigami, T. Guthörl, P. Sznajder, D. Neyret, A. Lehmann, A. Mutter, E. M. Kabuss, A. Bravar, S. Sosio, S. Paul, S. Neubert, V. Jary, B. Gobbo, S. Tessaro, A. Mann, Yu. Kisselev, R. Garfagnini, Marcin Stolarski, M. Finger, S. Uhl, N. I. Zhuravlev, M.G. Alekseev, A. Sandacz, F. Nerling, Marcello Giorgi, Federica Sozzi, M. Ziembicki, A.V. Efremov, E. Rondio, Moinester, Michal Dziewiecki, K. Klimaszewski, A. Morreale, S. Schopferer, M. Ostrick, V.D. Samoylenko, Elena Rocco, Lei Wang, M. Virius, Andres Cicuttin, Yu.A. Khokhlov, J. Polak, S. Platchkov, V.N. Kolosov, G. Reicherz, C. Franco, R. Panknin, Anne-Laure Martin, Laura Silva, N.S. Rossiyskaya, F. Haas, Christian Schill, K. Zaremba, G.I. Smirnov, S. Dalla Torre, C. Hess, F. H. Heinsius, J. Pretz, G. Piragino, S. Sarkar, R. Geyer, V.A. Polyakov, A. Grasso, P. Bordalo, C. Quintans, E. Perevalova, Jean-Francois Rajotte, J. Barth, A. Zvyagin, D.I. Ryabchikov, I. Konorov, V. Duic, E. Burtin, V.F. Konstantinov, A.S. Nunes, D. von Harrach, D. Panzieri, A. Austregesilo, G. Sbrizzai, W. Wislicki, Janusz Marzec, S. Dasgupta, C. Elia, Gerhard K. Mallot, T. Liška, L. G. Tkatchev, H. Fischer, A. Amoroso, Maxence Vandenbroucke, R. Joosten, N. du Fresne von Hohenesche, Yu. Alexandrov, S. Ishimoto, T. Schlüter, A. Magnon, Bakur Parsamyan, R. Birsa, R. Kuhn, Roland Windmolders, K. Bicker, A. Korzenev, K. Kondo, L. Dhara, S. Das, C. Braun, M. Chiosso, R. Bertini, T. Iwata, Y. Bedfer, Johannes Bernhard, A. Guskov, B. Badelek, S. U. Chung, K. Kurek, M. Bettinelli, O. Kouznetsov, A. Nagaytsev, F. Balestra, Aram Kotzinian, B. Ketzer, Franco Bradamante, A. Filin, M.G. Sapozhnikov, D.V. Peshekhonov, P. Jasinski, G. Pesaro, J. ter Wolbeek, I. Gnesi, W. Eyrich, Nour Makke, J. Bieling, M. Quaresma, W.-D. Nowak, G.V. Meshcheryakov, Matthias Schott, F. Tessarotto, Z.V. Kroumchtein, O.Yu. Denisov, F. Kunne, G. D. Alexeev, W. Dünnweber, S. G. Gerassimov, Fabrice Gautheron, M. A. Faessler, V.Yu. Alexakhin, R. Sulej, Frank Klein, H. Wollny, Yu. Ivanshin, S. Goertz, J. Lichtenstadt, and B. Grube
- Subjects
Quantum chromodynamics ,Physics ,Nuclear and High Energy Physics ,Particle physics ,Large Hadron Collider ,Muon ,010308 nuclear & particles physics ,Scattering ,Nuclear Theory ,Hadron ,01 natural sciences ,Nuclear physics ,Cross section (physics) ,0103 physical sciences ,COMPASS experiment ,High Energy Physics::Experiment ,Nuclear Experiment ,010306 general physics ,Nucleon - Abstract
The cross section for production of charged hadrons with high transversemomenta in scattering of 160 GeV/c muons off nucleons at low photonvirtualities has been measured at the COMPASS experiment at CERN. The results,which cover transverse momenta from 1.1 to 3.6 GeV/c, are compared to anext-to-leading order perturbative Quantum Chromodynamics (NLO pQCD)calculation in order to evaluate the applicability of pQCD to this process inthe kinematic domain of the experiment. The shape of the calculateddifferential cross section as a function of transverse momentum is found to bein good agreement with the experimental data, but the normalization isunderestimated by NLO pQCD. This discrepancy may point towards the relevance ofterms beyond NLO in the pQCD framework. The dependence of the cross section onthe pseudo-rapidity and on the charge of the hadrons is also discussed.
- Published
- 2013
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