Observation of a charmed baryon decaying to D(0)p at a mass near 2.94 GeV/c(2)

B. Aubert, J.Y. Chen, K. Peters, L.L. Zhang, S. Chen, W. Wang, X.H. Li, M.A. Baak, H.J. Bulten, G. Raven, H. Snoek, P. David, H. Schroder, N. de Groot, N. van Bakel, Z. Yu

Research output: Contribution to JournalArticleAcademicpeer-review

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 287fb-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. © 2007 The American Physical Society.
Original languageEnglish
JournalPhysical Review Letters
Volume98
Issue number1
DOIs
Publication statusPublished - 2007

Bibliographical note

Observation of a charmed baryon decaying to D(0)p at a mass near 2.94 GeV/c(2)

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