Inclusive production of protons, anti-protons and neutrons in p plus p collisions at 158 GeV/c beam momentum

被引:88
|
作者
Anticic, T. [1 ]
Baatar, B. [7 ]
Bartke, J. [5 ]
Betev, L. [9 ]
Bialkowska, H. [15 ]
Blume, C. [8 ]
Boimska, B. [15 ]
Bracinik, J. [2 ]
Cerny, V. [2 ]
Chvala, O. [12 ]
Dolejsi, J. [12 ]
Eckardt, V. [11 ]
Fischer, H. G. [9 ]
Fodor, Z. [4 ]
Foka, P. [6 ]
Friese, V. [6 ]
Gazdzicki, M. [8 ]
Hoehne, C. [6 ]
Kadija, K. [1 ]
Karev, A. [9 ]
Kolesnikov, V. [7 ]
Kowalski, M. [5 ]
Kreps, M. [2 ]
Makariev, M. [14 ]
Malakhov, A. [7 ]
Mateev, M. [13 ]
Melkumov, G. [7 ]
Mitrovski, M. [8 ]
Mrowczynski, S. [10 ]
Renfordt, R. [8 ]
Rybczynski, M. [10 ]
Rybicki, A. [5 ]
Sandoval, A. [6 ]
Schmitz, N. [11 ]
Seyboth, P. [11 ]
Stefanek, G. [10 ]
Stock, R. [8 ]
Stroebele, H. [8 ]
Susa, T. [1 ]
Szymanski, P. [15 ]
Trubnikov, V. [15 ]
Varga, D. [3 ]
Vesztergombi, G. [4 ]
Vranic, D. [6 ]
Wenig, S. [9 ]
Wlodarczyk, Z. [10 ]
Wojtaszek, A. [10 ]
机构
[1] Rudjer Boskovic Inst, Zagreb, Croatia
[2] Comenius Univ, Bratislava, Slovakia
[3] Eotvos Lorant Univ, Budapest, Hungary
[4] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary
[5] Polish Acad Sci, H Niewodniczanski Inst Nucl Phys, Krakow, Poland
[6] Gesell Schwerionenforsch GSI, Darmstadt, Germany
[7] Joint Inst Nucl Res, Dubna, Russia
[8] Goethe Univ Frankfurt, Fachbereich Phys, Frankfurt, Germany
[9] CERN, Geneva, Switzerland
[10] Jan Kochanowski Univ Humanities & Sci, Inst Phys, Kielce, Poland
[11] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
[12] Charles Univ Prague, Fac Math & Phys, Inst Particle & Nucl Phys, Prague, Czech Republic
[13] Sofia Univ St Kliment Ohridski, Dept Atom Phys, Sofia, Bulgaria
[14] BAS, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria
[15] Inst Nucl Studies, PL-00681 Warsaw, Poland
来源
EUROPEAN PHYSICAL JOURNAL C | 2010年 / 65卷 / 1-2期
基金
匈牙利科学研究基金会;
关键词
LARGE TRANSVERSE-MOMENTUM; INTERSECTING STORAGE-RINGS; PARTICLE-PRODUCTION; CERN-ISR; GEV-C; CHARGED PIONS; DIFFRACTION DISSOCIATION; HADRONIC-INTERACTIONS; FRAGMENTATION REGION; INELASTIC-SCATTERING;
D O I
10.1140/epjc/s10052-009-1172-2
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
New data on the production of protons, anti-protons and neutrons in p+p interactions are presented. The data come from a sample of 4.8 million inelastic events obtained with the NA49 detector at the CERN SPS at 158 GeV/c beam momentum. The charged baryons are identified by energy loss measurement in a large TPC tracking system. Neutrons are detected in a forward hadronic calorimeter. Inclusive invariant cross sections are obtained in intervals from 0 to 1.9 GeV/c (0 to 1.5 GeV/c) in transverse momentum and from -0.05 to 0.95 (-0.05 to 0.4) in Feynman x for protons (anti-protons), respectively. p (T) integrated neutron cross sections are given in the interval from 0.1 to 0.9 in Feynman x. The data are compared to a wide sample of existing results in the SPS and ISR energy ranges as well as to proton and neutron measurements from HERA and RHIC.
引用
收藏
页码:9 / 63
页数:55
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