Factorial moments and correlations in transverse momentum in π+p and K+p collisions at 250 GeV/c

N. M. Agababyan*, M. R. Atayan, J. Czyzewski, E. A. De Wolf, K. Dziunikowska, A. M F Endler, Z. Sh Garutchava, G. R. Gulkanyan, R. Sh Hakobyan, D. Kisielewska, W. Kittel, S. S. Mehrabyan, Z. V. Metreveli, K. Olkiewicz, F. K. Rizatdinova, E. K. Shabalina, L. N. Smirnova, M. D. Tabidze, L. A. Tikhonova, A. V. TkabladzeA. G. Tomaradze, F. Verbeure, S. A. Zotkin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We have measured the factorial moments up to fifth order, as well as the second-order normalized differential factorial moments, both as a function of the difference of transverse momentum (ΔpT) in π+p and K+p collisions at 250 GeV/c. The second-order differential factorial moments for like-charged pairs reveal a strong increase with decreasing ΔpT. In a small central rapidity window, this increase is described by a simple power law. If interpreted as originating from Bose-Einstein correlations, such a behavior indicates a power-law structure of the transverse spatial distribution of the particle source.

Original languageEnglish (US)
Pages (from-to)205-209
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume393
Issue number1-2
DOIs
StatePublished - Feb 6 1997

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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