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Charge fluctuations in $π^{+} p$ and $K^{+} p$ collisions at $250 G e V / c$

M. R. Atayan¹, Bai Yuting², E. A. De Wolf³, A. M. F. Endler⁴, Fu Jinghua², H. Gulkanyan¹, R. Hakobyan¹, W. Kittel⁵, Liu Lianshou² et al. (EHS/NA22 Collaboration)

Liu Lianshou², Li Zhiming², Z. V. Metreveli⁶, L. N. Smirnova⁷, L. A. Tikhonova⁷, A. G. Tomaradze^6,*, Wu Yuanfang², and S. A. Zotkin^7,† (EHS/NA22 Collaboration)

¹Institute of Physics, AM-375036 Yerevan, Armenia
²Institute of Particle Physics, Hua-Zhong Normal University, Wuhan 430070, China
³Department of Physics, Universitaire Instelling Antwerpen, B-2610 Wilrijk, Belgium
⁴Centro Brasileiro de Pesquisas Fisicas, BR-22290 Rio de Janeiro, Brazil
⁵High Energy Physics Institute (HEFIN), University of Nijmegen/NIKHEF, NL-6525 ED Nijmegen, The Netherlands
⁶Institute for High Energy Physics of Tbilisi State University, GE-380086 Tbilisi, Georgia; , USA
⁷Scobeltsyn Institute of Nuclear Physics, Lomonosow Moscow State University, RU-119899 Moscow, Russia

^*Now at Northwestern Univ., Evanston, IL, USA
^†Now at DESY, Hamburg, Germany

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Phys. Rev. D 71, 012002 – Published 24 January, 2005

DOI: https://doi.org/10.1103/PhysRevD.71.012002

Abstract

We report on measurements of event-by-event charge fluctuations in $π^{+} p$ and $K^{+} p$ collisions at $250 G e V / c$ . The dependence of these fluctuations on the size of the rapidity windows are presented for the first time in the full phase-space domain. The corrections for the influence of global charge conservation and leading-particle stopping are tested by the data. The discrepancy due to incomplete correction given by STAR and PHENIX are estimated. The dependence of the fluctuations on the position of the rapidity bin and on the multiplicity at different rapidity windows are also presented.

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References (24)

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Charge fluctuations in $π^{+} p$ and $K^{+} p$ collisions at $250 G e V / c$

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Charge fluctuations in π+p and K+p collisions at 250 GeV/c

Abstract

Article Text

References (24)

Charge fluctuations in $π^{+} p$ and $K^{+} p$ collisions at $250 G e V / c$