1. Angular dependence of factorial moments in π+/K+p interactions at 250 GeV/c
- Author
-
F.K. Rizatdinova, G. R. Gulkanyan, K. Olkiewicz, A.V. Tkabladze, R.S. Hakobyan, Amiran Tomaradze, F. Verbeure, S. A. Zotkin, Z.S. Garutchava, M. R. Atayan, F. Botterweck, E.C. Deoliviera, P. V. Chliapnikov, K. Dziunikowska, D. Kisielewska, I. V. Ajinenko, E.A. DeWolf, L. A. Tikhonova, N. M. Agababyan, M. Charlet, S. S. Mehrabyan, Lidia Smirnova, W. Kittel, A.M.F. Endler, Z. Metreveli, and Elizaveta Shabalina
- Subjects
Physics ,Nuclear and High Energy Physics ,Factorial ,Elementary particle ,Function (mathematics) ,Power law ,law.invention ,Nuclear physics ,law ,Particle ,Multiplicity (chemistry) ,Particle Physics - Experiment ,Bose–Einstein condensate ,Factorial moment - Abstract
A sample of π+p and K+p non-diffractive interactions at √s = 22 GeV is used to investigate factorial multiplicity moments as a function of the CMS opening angle θ between particles. The angular dependence is very different for unlike-charge and like-charge particle combinations. For the latter, factorial moments increase with decreasing opening angle approximately as a power law. The θ dependence is stronger for central production-angle intervals than in the forward and backward regions. The predictions of the standard version of the FRITIOF model deviate strongly from the data, but including Bose-Einstein correlations leads to qualitative agreement.
- Published
- 1994