Inclusive production of neutral strange particles at 300 GeV: Triple-Regge behavior

T. Devlin, B. Edelman, R. T. Edwards, J. Norem, L. Schachinger, P. Yamin, G. Bunce, R. Handler, R. March, P. Martin, L. Pondrom, M. Sheaff, K. Heller, O. E. Overseth, P. Skubic

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Abstract

The process p + nucleon → V0+ anything has been studied at 300 GeV for V0 = Λ0, Λ0, and KS0. The data are consistent with a simple Mueller-Regge formulation in the appropriate limit. Values of α(t) computed from the data agree with those expected from the simplest triple-Regge diagrams. If the pomeron is not a pure SU(3) singlet, a similar diagram is consistent with the Feynman x-dependence of the observed polarization of inclusively produced Λ0.

Original languageEnglish (US)
Pages (from-to)1-10
Number of pages10
JournalNuclear Physics, Section B
Volume123
Issue number1
DOIs
StatePublished - May 16 1977

Bibliographical note

Funding Information:
We have obtained data on inclusive production of A °, Ks° , and ~0 by 300 GeV protons in the Fermilab neutral hyperon beam. At angles from 0 to 9 mr, and in the higher range of Feynman x, the invariant cross sections converge to a single-term triple-Regge behavior. Fits to the data yield values of a(t) consistent with K* (K**) exchange, with ~ exchange, and with Regge-like behavior of a strange di-baryon system for A °, K ° and ~o, respectively. Interference between K* and K** exchange is consistent with the Feynman x-dependence of the A ° polarization observed in the same data \[1\ ]. In order for the triple-Regge representation of this interference to * Present address: Argonne National Laboratory, Argonne, Illinois, 60439. ** Present address: Brookhaven National Laboratory, Upton, Long Island, NY 11973. *** Work supported in part by the National Science Foundation. + Work supported in part by the US Energy Research and Development Administration.

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