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.

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., et al. (2007). Observation of a charmed baryon decaying to D0p at a mass near 2.94GeV/c2. PHYSICAL REVIEW LETTERS, 98(1) [10.1103/PhysRevLett.98.012001].

Observation of a charmed baryon decaying to D0p at a mass near 2.94GeV/c2

Carpinelli M.;
2007

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.
Articolo in rivista - Articolo scientifico
Charged particles; Detector circuits; Electron energy levels; Energy gap; Quantum theory; Spectrum analysis; Annihilation; BABAR detectors; Center of mass energy; Charmed baryons; Elementary particles;
English
2007
98
1
012001
none
Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., et al. (2007). Observation of a charmed baryon decaying to D0p at a mass near 2.94GeV/c2. PHYSICAL REVIEW LETTERS, 98(1) [10.1103/PhysRevLett.98.012001].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389695
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