Invariant mass dependence of Λ polarization in pp → pΛK+π+π-π+π -

Liang Zuo-tang, Li Tie-shi

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We show that there is a correlation between the invariant mass of the produced ΛK+, ΛK+π+π- or ΛK+π+π-π+π - system in the exclusive reaction pp → pΛK+π+π-π+π - and the longitudinal or transverse momentum of Λ. Together with the longitudinal and transverse momentum dependence of A polarization observed in inclusive reactions, such a correlation implies a dependence of A polarization on these invariant masses. The qualitative features of this dependence are consistent with the recent observation by the E766 collaboration at BNL. A quantitative estimation has been made using an event generator for pp collisions. A detailed comparison with the data is made.

Original languageEnglish (US)
Pages (from-to)L111-L116
JournalJournal of Physics G: Nuclear and Particle Physics
Issue number7
StatePublished - Jul 2000
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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