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.

Observation of an excited charm baryon Omega(*)(c) decaying to Omega(0)(c)gamma / Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.p., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Chen, J.c., Qi, N.d., Rong, G., Wang, P., Zhu, Y.s., Eigen, G., Ofte, I., Stugu, B., Abrams, G.s., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 97:(2006). [10.1103/physrevlett.97.232001]

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

RAHATLOU, SHAHRAM;BELLINI, Fabio;CAVOTO, Gianluca;DEL RE, Daniele;FACCINI, Riccardo;FERRONI, Fernando;GASPERO, Mario;VOENA C;
2006

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.
2006
01 Pubblicazione su rivista::01a Articolo in rivista
Observation of an excited charm baryon Omega(*)(c) decaying to Omega(0)(c)gamma / Aubert, B., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.p., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Chen, J.c., Qi, N.d., Rong, G., Wang, P., Zhu, Y.s., Eigen, G., Ofte, I., Stugu, B., Abrams, G.s., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 97:(2006). [10.1103/physrevlett.97.232001]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/231001
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