Title
Search for exclusive decays of the Lambda(b) baryon and measurement of its mass 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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