Comparison of spike production in pp and π+p/K+p interactions at 205-360 GeV/c

N. M. Agababyan*, A. Kh Argynova, M. R. Atayan, J. Czyzewski, E. A. De Wolf, I. M. Dremin, K. Dziunikowska, A. M F Endler, P. F. Ermolov, Z. Sh Garutchava, H. R. Gulkanyan, R. Sh Hakobyan, J. K. Karamyan, D. Kisielewska, W. Kittel, A. I. Lebedev, A. A. Loktionov, S. S. Mehrabyan, Z. V. Metreveli, M. T. NazirovK. Olkiewicz, F. K. Rizatdinova, E. K. Shabalina, L. N. Smirnova, M. D. Tabidze, L. A. Tikhonova, A. G. Tomaradze, F. Verbeure, S. A. Zotkin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


Spike production is studied in pp and π+p/K+p collisions in the beam-momentum range of 205-360 GeV/c. The pseudorapidity distribution of spike centers exhibits two narrow peaks in pp interactions, while having one wide bump in πC and Kp interactions. The position of the peaks is consistent with the expectation from a model of coherent gluon radiation at finite length. The interference between the quark color amplitudes obtained within this model causes two off-center peaks in pp data, but only one central peak in πP and Kp data.

Original languageEnglish (US)
Pages (from-to)397-404
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number2
StatePublished - Dec 12 1996

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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