$B^{0}_{s}$ lifetime measurement in the CP-odd decay channel $B^{0}_{s} \to J/\psi\mbox{ }f_{0}(980)$

V.M. Abazov; F. Badaud; Ph. Gris; G. Grenier; T. Kurca; P. Lebrun; G. Bernardi; D. Brown; Y. Enari; J. Lellouch; D. Li; L. Zivkovic; S. Greder; F. Miconi; I. Ripp-Baudot; G. Sajot; J. Stark; M. Jaffré; J.-F. Grivaz; P. Pétroff; T. Guillemin; M.-C. Cousinou; A. Duperrin; W. Geng; E. Kajfasz; S. Kermiche; E. Nagy; N. Osman

doi:10.1103/PhysRevD.94.012001

Journal articles

$B^{0}_{s}$ lifetime measurement in the CP-odd decay channel $B^{0}_{s} \to J/\psi\mbox{ }f_{0}(980)$

V.M. Abazov F. Badaud ¹ Ph. Gris ¹ G. Grenier ² T. Kurca ² P. Lebrun ² G. Bernardi ³ D. Brown ³ Y. Enari ³ J. Lellouch ³ D. Li ³ L. Zivkovic ³ S. Greder ⁴ F. Miconi ⁴ I. Ripp-Baudot ⁴ G. Sajot ⁵ J. Stark ⁵ M. Jaffré ⁶ J.-F. Grivaz ⁶ P. Pétroff ⁶ T. Guillemin ⁶ M.-C. Cousinou ⁷ A. Duperrin ⁷ W. Geng ⁷ E. Kajfasz ⁷ S. Kermiche ⁷ E. Nagy ⁷ N. Osman ⁷

1 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand

2 IPNL - Institut de Physique Nucléaire de Lyon

3 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies

4 IPHC - Institut Pluridisciplinaire Hubert Curien

5 LPSC - Laboratoire de Physique Subatomique et de Cosmologie

6 LAL - Laboratoire de l'Accélérateur Linéaire

7 CPPM - Centre de Physique des Particules de Marseille

Abstract : The lifetime of the $B^{0}_{s}$ meson is measured in the decay channel $B^{0}_{s} \to J/\psi\mbox{ }\pi^+ \pi^-$ with $880 \leq M_{\pi^+\pi^-} \leq 1080$ MeV/$c^2$, which is mainly a CP-odd state and dominated by the $f_{0}(980)$ resonance. In 10.4 fb$^{-1}$ of data collected with the D0 detector in Run II of the Tevatron, the lifetime of the $B^{0}_{s}$ meson is measured to be $\tau(B^{0}_{s}) = 1.70\pm 0.14 \mbox{ (stat)} \pm 0.05 \mbox{ (syst) ps}$. Neglecting CP violation in $B_s^0/\bar{B}_s^0$ mixing, the measurement can be translated into the width of the heavy mass eigenstate of the $B^0_s$, $\Gamma_H = 0.59 \pm 0.05 \mbox{ (stat)} \pm 0.02 \mbox{ (syst)} \mbox{ ps$^{-1}$}$.

Document type :

Journal articles

Domain :

Physics [physics] / High Energy Physics - Experiment [hep-ex]

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http://hal.in2p3.fr/in2p3-01283982
Contributor : Dominique Girod <>
Submitted on : Monday, March 7, 2016 - 11:17:34 AM
Last modification on : Thursday, February 25, 2021 - 10:58:35 AM

$B^{0}_{s}$ lifetime measurement in the CP-odd decay channel $B^{0}_{s} \to J/\psi\mbox{ }f_{0}(980)$

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$B^{0}_{s}$ lifetime measurement in the CP-odd decay channel $B^{0}_{s} \to J/\psi\mbox{ }f_{0}(980)$

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