Search for the weak decay of an {ital H} dibaryon

Journal Article · Mon Apr 01 04:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.3277· OSTI ID:285645

Belz, J; Cousins, R D; Diwan, M V; Eckhause, M; Ecklund, K M; Hancock, A D; Highland, V L; Hoff, C; Hoffmann, G W; Irwin, G M; Kane, J R; Kettell, S H; Klein, J R; Kuang, Y; Lang, K; Martin, R; May, M; McDonough, J; Molzon, W R; Riley, P J ; Ritchie, J L; Schwartz, A J; Trandafir, A; Ware, B; Welsh, R E; White, S N; Witkowski, M T; Wojcicki, S G; Worm, S ^[1]

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1. Brookhaven National Laboratory, Upton, New York 11973 (United States)

We have searched for a neutral {ital H} dibaryon decaying via {ital H}{r_arrow}{Lambda}{ital n} and {ital H}{r_arrow}{Sigma}{sup 0}{ital n}. Our search has yielded two candidate events from which we set an upper limit on the {ital H} production cross section. Normalizing to the inclusive {Lambda} production cross section, we find ({ital d}{sigma}{sub {ital H}}/{ital d}{Omega})/({ital d}{sigma}{sub {Lambda}}/{ital d}{Omega}){lt}6.3{times}10{sup {minus}6} at 90{percent} C.L., for an {ital H} of mass {approx_equal}2.15 GeV/{ital c}{sup 2}. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 285645
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 18 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CROSS SECTIONS
DIBARYONS
LAMBDA BARYONS
NEUTRAL PARTICLES
NEUTRONS
PARTICLE PRODUCTION
SIGMA BARYONS
WEAK HADRONIC DECAY