University of Sussex
Browse

File(s) not publicly available

Measurement of the p-pbar -> L-L bar and p-pbar -> S 0 bar L + c.c reactions at 1.726 and 1.771 GeV/c

journal contribution
posted on 2023-06-07, 21:20 authored by P D Barnes, Philip Harris, et al
Interest in the production of hyperon-antihyperon pairs following antiproton-proton annihilation stems largely from attempts to understand the nature of flavor production. To date the major focus of both the experimental and the theoretical effort has been on the p¯p¿¿¯¿ reaction. In this paper, we present data on the complementary channels p¯p¿S¯ 0¿ and p¯p¿¿¯S0. Events from the kinematically similar p¯p¿¿¯¿ reaction were obtained in parallel. The procedure to distinguish these three separate reactions is described and results for all channels are presented. These include the total and differential cross sections, hyperon polarizations, and spin correlation coefficients. Data were obtained at incident antiproton lab momenta of 1.726 and 1.771 GeV/c which correspond to excess kinetic energies in the p¯p¿¿¯S0+c.c. reaction of 26 and 40 MeV, respectively, above threshold. Comparisons are made to earlier work at similar excess energies in the p¯p¿¿¯¿ channel. The low-energy regime has been highlighted in this experiment to reduce the complexity in the theoretical analysis.

History

Publication status

  • Published

Journal

Physical Review C

ISSN

0556-2813

Issue

6

Volume

54

Page range

2831-2842

ISBN

0556-2813

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

Usage metrics

    University of Sussex (Publications)

    Categories

    No categories selected

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC