V0 production in p plus A collisions at √s=41.6 GeV

被引:0
|
作者
Abt, I. [23 ]
Adams, M. [10 ]
Agari, M. [13 ]
Albrecht, H. [12 ]
Aleksandrov, A. [29 ]
Amaral, V. [8 ]
Amorim, A. [8 ]
Aplin, S. J. [12 ]
Aushev, V. [16 ]
Bagaturia, Y. [12 ]
Balagura, V. [22 ]
Bargiotti, M. [6 ]
Barsukova, O. [11 ]
Bastos, J. [8 ]
Batista, J. [8 ]
Bauer, C. [13 ]
Bauer, Th. S. [1 ]
Belkov, A. [11 ]
Belkov, Ar. [11 ]
Belotelov, I. [11 ]
Bertin, A. [6 ]
Bobchenko, B. [22 ]
Bocker, M. [26 ]
Bogatyrev, A. [22 ]
Bohm, G. [29 ]
Brauer, M. [13 ]
Bruinsma, M. [28 ]
Bruschi, M. [6 ]
Buchholz, P. [26 ]
Buran, T. [24 ]
Carvalho, J. [8 ]
Conde, P. [12 ]
Cruse, C. [10 ]
Dam, M. [9 ]
Danielsen, K. M. [24 ]
Danilov, M. [22 ]
De Castro, S. [6 ]
Deppe, H. [14 ]
Dong, X. [3 ]
Dreis, H. B. [14 ]
Egorytchev, V. [12 ]
Ehret, K. [10 ]
Eisele, F. [14 ]
Emeliyanov, D. [12 ]
Essenov, S. [22 ]
Fabbri, L. [6 ]
Faccioli, P. [6 ]
Feuerstack-Raible, M. [14 ]
Flammer, J. [12 ]
Fominykh, B. [22 ]
机构
[1] NIKHEF, NL-1009 DB Amsterdam, Netherlands
[2] Univ Barcelona, Fac Phys, Dept ECM, E-08028 Barcelona, Spain
[3] Inst High Energy Phys, Beijing 100039, Peoples R China
[4] Tsinghua Univ, Inst Engn Phys, Beijing 100084, Peoples R China
[5] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany
[6] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy
[7] Univ Cincinnati, Dept Phys, Cincinnati, OH 45221 USA
[8] LIP Coimbra, P-3004516 Coimbra, Portugal
[9] Niels Bohr Inst, DK-2100 Copenhagen, Denmark
[10] Univ Dortmund, Inst Phys, D-44221 Dortmund, Germany
[11] Joint Inst Nucl Res Dubna, Dubna 141980, Russia
[12] DESY, D-22603 Hamburg, Germany
[13] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany
[14] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany
[15] Univ Houston, Dept Phys, Houston, TX 77204 USA
[16] Ukrainian Acad Sci, Inst Nucl Res, UA-03680 Kiev, Ukraine
[17] Jozef Stefan Inst, Ljubljana 1001, Slovenia
[18] Univ Ljubljana, Ljubljana 1001, Slovenia
[19] Univ Calif Los Angeles, Los Angeles, CA 90024 USA
[20] Univ Mannheim, Lehrstuhl Informat 5, D-68131 Mannheim, Germany
[21] Univ Maribor, SLO-2000 Maribor, Slovenia
[22] Inst Theoret & Expt Phys, Moscow 117218, Russia
[23] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy
[24] Univ Oslo, Dept Phys, N-0316 Oslo, Norway
[25] Univ Rostock, Fachbereich Phys, D-18051 Rostock, Germany
[26] Univ Siegen, Fachbereich Phys, D-57068 Siegen, Germany
[27] INRNE BAS, Inst Nucl Res, Sofia, Bulgaria
[28] Univ Utrecht, NIKHEF, NL-3584 CB Utrecht, Netherlands
[29] DESY, D-15738 Zeuthen, Germany
[30] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland
来源
EUROPEAN PHYSICAL JOURNAL C | 2009年 / 61卷 / 02期
关键词
STRANGE-PARTICLE-PRODUCTION; PROTON-PROTON COLLISIONS; PRODUCTION CROSS-SECTIONS; INCLUSIVE PRODUCTION; GEV-C; TRANSVERSE-MOMENTUM; LAMBDA PRODUCTION; DETECTOR; TARGET; GAMMA;
D O I
10.1140/epjc/s10052-009-1005-3
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
Inclusive doubly differential cross sections d(2)sigma(pA)/dx(F)d(p2T) as a function of Feynman-x (x(F)) and transverse momentum (p(T)) for the production of K-S(0), Lambda and (Lambda) over bar in proton-nucleus interactions at 920 GeV are presented. The measurements were performed by HERA-B in the negative xF range (-0.12 < x(F) < 0.0) and for transverse momenta up to p(T) = 1.6 GeV/c. Results for three target materials: carbon, titanium and tungsten are given. The ratios of production cross sections are presented and discussed. The Cronin effect is clearly observed for all three V 0 species. The atomic number dependence is parameterized as sigma(pA) = sigma(pN) . A(alpha) where sigma(pN) is the proton-nucleon cross section. The measured values of a are all near one. The results are compared with EPOS 1.67 and PYTHIA 6.3. EPOS reproduces the data to within approximate to 20% except at very low transverse momentum.
引用
收藏
页码:207 / 221
页数:15
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