Search for the. Lambda. sub b baryon at CDF

Conference · Wed Apr 01 00:00:00 EST 1992

OSTI ID:5167942

Gauthier, A ^[1]

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1. Illinois Univ., Urbana, IL (United States)

The {Lambda}{sub b} baryon has been observed recently by UA1 through its decay {Lambda}{sub b} {yields} J/{psi}{Lambda}{degrees}. Although CDF finds twice as many J/{psi} and observes {Lambda}{degrees} decays, no evidence for an {Lambda}{sub b} signal is seen. The UA1 data supports a lower than expected production P{sub T} for the {Lambda}{sub b}, and therefore, a lower pion P{sub T}, below the observation threshold of CDF. This result suggests that UA1 and CDF are probably not inconsistent, but also that the production models are not quite right.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 5167942
• Report Number(s): FNAL/C-92/112-E; CONF-9203154-1; ON: DE92014007
• Resource Relation: Conference: 27. Rencontres de Moriond, QCD and high energy interactions, Les Arcs (France), 22-28 Mar 1992; Other Information: The CDF Collaboration
• Country of Publication: United States
• Language: English

Related Subjects

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MASS SPECTRA
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662410* - Properties of Baryons & Baryon Resonances- (1992-)
662360 - Decays of Baryons- (1992-)