Boost invariance and multiplicity dependence of the charge balance function in π+ p and K+ p collisions at sqrt(s) = 22  GeV

M. R. Atayan, Yuting Bai, E. A. De Wolf, A. M F Endler, Jinghua Fu, H. Gulkanyan, R. Hakobyan, W. Kittel, Lianshou Liu, Zhiming Li, Na Li, Z. V. Metreveli, L. N. Smirnova, L. A. Tikhonova, A. G. Tomaradze, Yuanfang Wu*, S. A. Zotkin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Boost invariance and multiplicity dependence of the charge balance function are studied in π+ p and K+ p collisions at 250 GeV/c incident beam momentum with full acceptance coverage. Charge balance, as well as charge fluctuations, are found to be boost invariant over the whole rapidity region, but both depend on the size of the rapidity window. It is also found that the balance function becomes narrower with increasing multiplicity, which is consistent with the narrowing of the balance function with increasing centrality and/or system size, as observed in current relativistic heavy ion experiments.

Original languageEnglish (US)
Pages (from-to)39-42
Number of pages4
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume637
Issue number1-2
DOIs
StatePublished - Jun 1 2006

Keywords

  • Balance function
  • Boost-invariance
  • Multiplicity

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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