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${{\mathit B}_{{{c}}}^{+}}$ MEAN LIFE

INSPIRE   PDGID:

S091T

VALUE ($ 10^{-12} $ s) DOCUMENT ID TECN  COMMENT $\bf{ 0.510 \pm0.009}$ OUR EVALUATION  $~~$(Produced by HFLAV) $\bf{ 0.510 \pm0.009}$ OUR AVERAGE $0.541$ $\pm0.026$ $\pm0.014$ 1 SIRUNYAN 2018 BY CMS ${{\mathit p}}{{\mathit p}}$ at 8 TeV $0.5134$ $\pm0.0110$ $\pm0.0057$ 2, 3 AAIJ 2015 G LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV $0.509$ $\pm0.008$ $\pm0.012$ 4 AAIJ 2014 G LHCB ${{\mathit p}}{{\mathit p}}$ at 8 TeV $0.452$ $\pm0.048$ $\pm0.027$ 3 AALTONEN 2013 CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV $0.448$ ${}^{+0.038}_{-0.036}$ $\pm0.032$ 5 ABAZOV 2009 H D0 ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV $0.463$ ${}^{+0.073}_{-0.065}$ $\pm0.036$ 5 ABULENCIA 2006 O CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV $0.46$ ${}^{+0.18}_{-0.16}$ $\pm0.03$ 5 ABE 1998 M CDF ${{\mathit p}}{{\overline{\mathit p}}}$ $1.8$ TeV 1  The lifetime is measured using the decays ${{\mathit B}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}^{+}}$ and ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit K}^{+}}$. 2  Also measures the width difference $\Delta \Gamma $ = ${\Gamma}_{{\mathit B}_{{{c}}}^{+}}−$ ${\Gamma}_{{\mathit B}^{+}}$ = $4.46$ $\pm0.14$ $\pm0.07$ mm${}^{-1}~$c. 3  Uses fully reconstructed ${{\mathit B}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}^{+}}$ decays. 4  Measured using ${{\mathit B}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \mu}^{+}}{{\mathit \nu}_{{{\mu}}}}{{\mathit X}}$ decays. 5  The lifetime is measured from the ${{\mathit J / \psi}}{{\mathit e}}$ decay vertices.

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