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Observation of the ?b0 baryon

Abstract: The observation of the bottom, strange baryon ?0b through the decay chain ?0b??+c??, where ?+c????+?+, ??????, and ??p??, is reported by using data corresponding to an integrated luminosity of 4.2fb?1 from p¯p collisions at ?s=1.96TeV recorded with the Collider Detector at Fermilab. A signal of 25.3+5.6?5.4 candidates is observed whose probability of arising from a background fluctuation is 3.6×10?12, corresponding to 6.8 Gaussian standard deviations. The ?0b mass is measured to be 5787.8±5.0(stat)±1.3(syst)MeV/c2. In addition, the ??b baryon is observed through the process ??b??0c??, where?0c????+, ??????, and ??p??.

 Autoría: Aaltonen T., Álvarez González B., Amerio S., Amidei D., Anastassov A., Annovi A., Antos J., Apollinari G., Appel J.A., Apresyan A., Arisawa T., Artikov A., Asaadi J., Ashmanskas W., Auerbach B., Aurisano A., Azfar F., Badgett W., Barbaro-Galtieri A., Barnes V.E., Barnett B.A., Barria P., Bartos P., Bauce M., Bauer G., Bedeschi F., Beecher D., Behari S., Bellettini G., Bellinger J., Benjamin D., Beretvas A., Bhatti A., Binkley M.,

 Fuente: Physical Review Letters, 2011, 107(10), 102001

 Editorial: American Physical Society

 Fecha de publicación: 01/09/2011

 Nº de páginas: 7

 Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevLett.107.102001

 ISSN: 0031-9007,1079-7114

 Url de la publicación: https://doi.org/10.1103/PhysRevLett.107.102001

Autoría

AALTONEN, T.

BARBARA ALVAREZ GONZALEZ

BRUNO CASAL LARAÑA

FRANCISCO JAVIER CUEVAS MAESTRO

JOSE ENRIQUE PALENCIA CORTEZON