Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/133207
Title: Measurement of the ¯B0s Meson Lifetime in D+sπ− Decays
Author: Badalov, Alexey
Calvo Gómez, Míriam
Garrido Beltrán, Lluís
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Marin Benito, Carla
Picatoste Olloqui, Eduardo
Rives Molina, Vicente José
Ruiz, Hugo (Ruiz Pérez)
Vilasis-Cardona, Xavier
LHCb Collaboration
Keywords: Física de partícules
Experiments
Particle physics
Experiments
Issue Date: 24-Oct-2014
Publisher: American Physical Society
Abstract: We present a measurement of the ratio of the ¯ B 0 s meson lifetime, in the flavor-specific decay to D + s π − , to that of the ¯ B 0 meson. The p p collision data used correspond to an integrated luminosity of 1     fb − 1 , collected with the LHCb detector, at a center-of-mass energy of 7 TeV. Combining our measured value of 1.010 ± 0.010 ± 0.008 for this ratio with the known ¯ B 0 lifetime, we determine the flavor-specific ¯ B 0 s lifetime to be τ ( ¯ B 0 s ) = 1.535 ± 0.015 ± 0.014     ps , where the uncertainties are statistical and systematic, respectively. This is the most precise measurement to date, and is consistent with previous measurements and theoretical predictions.
Note: Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.113.172001
It is part of: Physical Review Letters, 2014, vol. 113, num. 17, p. 172001
URI: http://hdl.handle.net/2445/133207
Related resource: https://doi.org/10.1103/PhysRevLett.113.172001
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

Files in This Item:
File Description SizeFormat 
645728.pdf376.92 kBAdobe PDFView/Open


This item is licensed under a Creative Commons License Creative Commons