2006/03/25 by The BABAR Collaboration, B. Aubert, R. Barate +98 · 2 citations
Physics and Astronomy · #Annihilation #Atomic physics #Baryon #Charmed baryons #Electron–positron annihilation #Energy (signal processing) #Hadron #High-Energy Particle Collisions Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #hep-ex
paper · pdf · doi:10.1103/physrevlett.98.012001
published as Phys.Rev.Lett.98:012001,2007 · 7 pages, 3 figures, submitted to Physical Review Letters
arxiv created 2006/03/25 · openalex publication_date 2007/01/04 · arxiv updated 2010/03/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
A search for charmed baryons decaying to D0p reveals two states: the \ensuremathΛc(2880)+ baryon and a previously unobserved state at a mass of [2939.8\ifmmode±\else\textpm\fi1.3(stat)\ifmmode±\else\textpm\fi1.0(syst)] MeV/c2 and with an intrinsic width of [17.5\ifmmode±\else\textpm\fi5.2(stat)\ifmmode±\else\textpm\fi5.9(syst)] MeV. Consistent and significant signals are observed for the K^\ensuremath-\ensuremathπ+ and K^\ensuremath-\ensuremathπ+\ensuremathπ^\ensuremath-\ensuremathπ+ decay modes of the D0 in 287 fb^\ensuremath-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 \ensuremathΛc(2880)+ baryon and relative yield of the two baryons are also measured.