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Observation of a Charmed Baryon Decaying to D0p at a Mass Near 2.94 GeV/c2

Aubert, B. et al. (2007) Observation of a Charmed Baryon Decaying to D0p at a Mass Near 2.94 GeV/c2. Physical Review Letters, 98 (1). 012001. ISSN 0031-9007

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Abstract

A search for charmed baryons decaying to D0p reveals two states: the Λc(2880)+ baryon and a previously unobserved state at a mass of [2939.8±1.3(stat)±1.0(syst)] MeV/c2 and with an intrinsic width of [17.5±5.2(stat)±5.9(syst)] MeV. Consistent and significant signals are observed for the K-π+ and K-π+π-π+ decay modes of the D0 in 287 fb-1 annihilation data recorded by the BABAR detector at a center-of-mass energy of 10.58 GeV. There is no evidence in the D+p spectrum of doubly charged partners. The mass and intrinsic width of the Λc(2880)+ baryon and relative yield of the two baryons are also measured.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
Depositing User: Sharon Beastall
Date Deposited: 07 Apr 2011 11:09
Last Modified: 07 Apr 2011 11:09
URI: http://eprints.hud.ac.uk/id/eprint/10065

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