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Evidence for a bottom baryon resonance ?b*0 in CDF data

Abstract: Using data from proton-antiproton collisions at ?s=1.96 TeV recorded by the CDF II detector at the Fermilab Tevatron, evidence for the excited resonance state ?b*0 is presented in its ?b0? -?+ decay followed by the ?b0?? c+?- and ?c+?pK-?+ decays. The analysis is based on a data sample corresponding to an integrated luminosity of 9.6 fb-1 collected by an online event selection based on charged-particle tracks displaced from the proton-antiproton interaction point. The significance of the observed signal is 3.5?. The mass of the observed state is found to be 5919.22±0.76 MeV/c2 in agreement with similar findings in proton-proton collision experiments.

Authorship: Aaltonen T., Amerio S., Amidei D., Anastassov A., Annovi A., Antos J., Apollinari G., Appel J.A., Arisawa T., Artikov A., Asaadi J., Ashmanskas W., Auerbach B., Aurisano A., Azfar F., Badgett W., Bae T., Barbaro-Galtieri A., Barnes V.E., Barnett B.A., Guimaraes Da Costa J., Barria P., Bartos P., Bauce M., Bedeschi F., Behari S., Bellettini G., Bellinger J., Benjamin D., Beretvas A., Bhatti A., Bland K.R., Blumenfeld B., Bocci A.,

Fuente: Physical Review D Vol.88, Num. 7 (2013) 071101(R)

Publisher: American Physical Society

Year of publication: 2013

No. of pages: 8

Publication type: Article

DOI: 10.1103/PhysRevD.88.071101

ISSN: 1550-7998,1550-2368,2470-0010,2470-0029

Publication Url: https://doi.org/10.1103/PhysRevD.88.071101

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