Observation of an Excited Charm Baryon Ω∗c Decaying to Ω0cγ

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

doi:10.1103/PhysRevLett.97.232001

Observation of an Excited Charm Baryon Ω∗c Decaying to Ω0cγ

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

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

We report the first observation of an excited singly charmed baryon Ωc* (css) in the radiative decay Ωc0γ, where the Ωc0 baryon is reconstructed in the decays to the final states Ω-π+, Ω-π+π0, Ω-π+π-π+, and Ξ-K-π+π+. This analysis is performed using a data set of 230.7fb-1 collected by the BABAR detector at the PEP-II asymmetric-energy B factory at the Stanford Linear Accelerator Center. The mass difference between the Ωc* and the Ωc0 baryons is measured to be 70.8±1. 0(stat)±1.1(syst)MeV/c2. We also measure the ratio of inclusive production cross sections of Ωc* and Ωc0 in e+e- annihilation.

Original language	English
Article number	232001
Journal	Physical Review Letters
Volume	97
Issue number	23
Early online date	6 Dec 2006
DOIs	https://doi.org/10.1103/PhysRevLett.97.232001
Publication status	Published - 8 Dec 2006

Bibliographical note

Observation of an excited charm baryon Omega(*)(c) decaying to Omega(0)(c)gamma

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10.1103/PhysRevLett.97.232001

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@article{3dca545ad9b74e05b2ef7d5897054348,

title = "Observation of an Excited Charm Baryon Ω∗c Decaying to Ω0cγ",

abstract = "We report the first observation of an excited singly charmed baryon Ωc* (css) in the radiative decay Ωc0γ, where the Ωc0 baryon is reconstructed in the decays to the final states Ω-π+, Ω-π+π0, Ω-π+π-π+, and Ξ-K-π+π+. This analysis is performed using a data set of 230.7fb-1 collected by the BABAR detector at the PEP-II asymmetric-energy B factory at the Stanford Linear Accelerator Center. The mass difference between the Ωc* and the Ωc0 baryons is measured to be 70.8±1. 0(stat)±1.1(syst)MeV/c2. We also measure the ratio of inclusive production cross sections of Ωc* and Ωc0 in e+e- annihilation.",

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

note = "Observation of an excited charm baryon Omega(*)(c) decaying to Omega(0)(c)gamma",

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doi = "10.1103/PhysRevLett.97.232001",

language = "English",

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TY - JOUR

T1 - Observation of an Excited Charm Baryon Ω∗c Decaying to Ω0cγ

AU - Aubert, B.

AU - Chen, J.Y.

AU - Peters, K.

AU - Zhang, L.L.

AU - Chen, S.

AU - Wang, W.

AU - Li, X.H.

AU - Baak, M.A.

AU - Raven, G.

AU - Snoek, H.

AU - David, P.

AU - Schroder, H.

AU - de Groot, N.

AU - Liu, H.

AU - van Bakel, N.

AU - Yu, Z.

N1 - Observation of an excited charm baryon Omega(*)(c) decaying to Omega(0)(c)gamma

PY - 2006/12/8

Y1 - 2006/12/8

N2 - We report the first observation of an excited singly charmed baryon Ωc* (css) in the radiative decay Ωc0γ, where the Ωc0 baryon is reconstructed in the decays to the final states Ω-π+, Ω-π+π0, Ω-π+π-π+, and Ξ-K-π+π+. This analysis is performed using a data set of 230.7fb-1 collected by the BABAR detector at the PEP-II asymmetric-energy B factory at the Stanford Linear Accelerator Center. The mass difference between the Ωc* and the Ωc0 baryons is measured to be 70.8±1. 0(stat)±1.1(syst)MeV/c2. We also measure the ratio of inclusive production cross sections of Ωc* and Ωc0 in e+e- annihilation.

AB - We report the first observation of an excited singly charmed baryon Ωc* (css) in the radiative decay Ωc0γ, where the Ωc0 baryon is reconstructed in the decays to the final states Ω-π+, Ω-π+π0, Ω-π+π-π+, and Ξ-K-π+π+. This analysis is performed using a data set of 230.7fb-1 collected by the BABAR detector at the PEP-II asymmetric-energy B factory at the Stanford Linear Accelerator Center. The mass difference between the Ωc* and the Ωc0 baryons is measured to be 70.8±1. 0(stat)±1.1(syst)MeV/c2. We also measure the ratio of inclusive production cross sections of Ωc* and Ωc0 in e+e- annihilation.

U2 - 10.1103/PhysRevLett.97.232001

DO - 10.1103/PhysRevLett.97.232001

M3 - Article

SN - 0031-9007

VL - 97

JO - Physical Review Letters

JF - Physical Review Letters

IS - 23

M1 - 232001

ER -

Observation of an Excited Charm Baryon Ω∗c Decaying to Ω0cγ

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Bibliographical note

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