Title
Search for exclusive decays of the Lambda(b) baryon and measurement of its mass
Author
Publication type
article
Publication
Amsterdam ,
Subject
Physics
Source (journal)
Physics letters: B. - Amsterdam, 1967, currens
Volume/pages
374() :4 , p. 351-361
ISSN
0370-2693
ISI
A1996UM34500010
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
A search for fully reconstructed Lambda(b)(0) beauty baryons is performed using about 3 million Z decays collected with the DELPHI detector at LEP. The analysis relies on the combined use of the accurate tracking and of the hadron identification capabilities of DELPHI. A total of four events has been found, three in the Lambda(c)(+)pi(-) channel and one in the Lambda(c)(+)a(1)(-) channel over a small background. The Lambda(b)(0) beauty baryon mass is measured to be (5668 +/- 16 (stat.) +/-8 (syst.)) MeV/c(2).
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