Aubert, B;
Bona, M;
Boutigny, D;
Couderc, F;
Karyotakis, Y;
Lees, JP;
Poireau, V;
... BABAR Collaboration; + view all
(2006)
Observation of an excited charm baryon Omega(*)(c) decaying to Omega(0)(c)gamma.
PHYS REV LETT
, 97
(23)
, Article 232001. 10.1103/PhysRevLett.97.232001.
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Abstract
We report the first observation of an excited singly charmed baryon Omega(*)(c) (css) in the radiative decay Omega(0)(c)gamma, where the Omega(0)(c) baryon is reconstructed in the decays to the final states Omega(-)pi(+), Omega(-)pi(+)pi(0), Omega(-)pi(+)pi(-)pi(+), and Xi K--(-)pi(+)pi(+). This analysis is performed using a data set of 230.7 fb(-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 Omega(*)(c) and the Omega(0)(c) baryons is measured to be 70.8 +/- 1.0(stat) +/- 1.1(syst) MeV/c(2). We also measure the ratio of inclusive production cross sections of Omega(*)(c) and Omega(0)(c) in e(+)e(-) annihilation.
| Type: | Article |
|---|---|
| Title: | Observation of an excited charm baryon Omega(*)(c) decaying to Omega(0)(c)gamma |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.97.232001 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.97.232001 |
| Language: | English |
| Additional information: | © 2006 The American Physical Society |
| Keywords: | MASSES, PHYSICS |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1303822 |
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