Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/131780
Title: Measurement of the ratio of branching fractions B(B0→K*0γ)/B(B0s→ϕγ)
Author: Abellan Beteta, Carlos
Calvo Gómez, Míriam
Camboni, Alessandro
Comerma Montells, Albert
Domingo Bonal, Francesc
Garrido Beltrán, Lluís
Gascón Fora, David
Grabalosa Gándara, Marc
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
López Asamar, Elias
Musy, Marco
Pérez-Calero Yzquierdo, Antonio
Picatoste Olloqui, Eduardo
Pie Valls, B. (Blai)
Potterat, Cédric
Puig Navarro, Albert
Roselló, M.
Ruiz, Hugo (Ruiz Pérez)
Vázquez-Gómez, Ricard
Vilasis-Cardona, Xavier
LHCb Collaboration
Keywords: Física de partícules
Experiments
Particle physics
Experiments
Issue Date: 1-Jun-2012
Publisher: American Physical Society
Abstract: The ratio of branching fractions of the radiative B decays B 0 → K * 0 γ and B 0 s → ϕ γ has been measured using 0.37     fb − 1 of p p collisions at a center of mass energy of √ s = 7     TeV , collected by the LHCb experiment. The value obtained is B ( B 0 → K * 0 γ ) B ( B 0 s → ϕ γ ) = 1.12 ± 0.08 + 0.06 + 0.09 − 0.04 − 0.08 , where the first uncertainty is statistical, the second systematic, and the third is associated with the ratio of fragmentation fractions f s / f d . Using the world average for B ( B 0 → K * 0 γ ) = ( 4.33 ± 0.15 ) × 10 − 5 , the branching fraction B ( B 0 s → ϕ γ ) is measured to be ( 3.9 ± 0.5 ) × 10 − 5 , which is the most precise measurement to date.
Note: Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.85.112013
It is part of: Physical Review D, 2012, vol. 85, num. 11, p. 112013
URI: http://hdl.handle.net/2445/131780
Related resource: https://doi.org/10.1103/PhysRevD.85.112013
ISSN: 1550-7998
Appears in Collections:Articles publicats en revistes (Electrònica)
Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Física de la Matèria Condensada)

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