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Título: | Measurement of Resonance Parameters of Orbitally Excited Narrow B-0 Mesons |
Autor: | CDF Collaboration; Cabrera, Susana CSIC ORCID; Cuenca Almenar, Cristóbal CSIC; Álvarez González, B.; Casal, Bruno CSIC; Cuevas, Javier CSIC ORCID; Gómez, Gervasio CSIC ORCID ; Rodrigo, Teresa CSIC ORCID ; Ruiz Jimeno, Alberto CSIC ORCID ; Scodellaro, Luca CSIC ORCID ; Vila, Iván CSIC ORCID; Vilar Cortabitarte, R. CSIC ORCID; Aaltonen, T. | Fecha de publicación: | 13-mar-2009 | Editor: | American Physical Society | Citación: | Physical Review Letters 102 (10): 102003 (2009) | Resumen: | We report a measurement of resonance parameters of the orbitally excited (L=1) narrow B-0 mesons in decays to B(*)+pi(-) using 1.7 fb(-1) of data collected by the CDF II detector at the Fermilab Tevatron. The mass and width of the B-2(*0) state are measured to be m(B-2(*0))=5740.2(-1.8)(+1.7)(stat)(-0.8)(+0.9)(syst) MeV/c(2) and Gamma(B-2(*0))=22.7(-3.2)(+3.8)(stat)(-10.2)(+3.2)(syst) MeV/c(2). The mass difference between the B-2(*0) and B-1(0) states is measured to be 14.9(-2.5)(+2.2)(stat)(-1.4)(+1.2)(syst) MeV/c(2), resulting in a B-1(0) mass of 5725.3(-2.2)(+1.6)(stat)(-1.5)(+1.4)(syst) MeV/c(2). This is currently the most precise measurement of the masses of these states and the first measurement of the B-2(*0) width. | Versión del editor: | http://dx.doi.org/ 10.1103/PhysRevLett.102.102003 | URI: | http://hdl.handle.net/10261/22126 | DOI: | 10.1103/PhysRevLett.102.102003 | ISSN: | 0031-9007 |
Aparece en las colecciones: | (IFIC) Artículos |
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resonance parameters.pdf | 194,6 kB | Adobe PDF | Visualizar/Abrir |
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