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${{\mathit B}_{{{c}}}^{+}}$ MASS

INSPIRE   PDGID:

S091M

VALUE (MeV) DOCUMENT ID TECN  COMMENT $6274.47$ $\pm0.27$ $\pm0.17$ 1 AAIJ 2020 R LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV • • We do not use the following data for averages, fits, limits, etc. • • $6274.28$ $\pm1.40$ $\pm0.32$ 2 AAIJ 2017 L LHCB Repl. by AAIJ 2020R $6274.0$ $\pm1.8$ $\pm0.4$ 3 AAIJ 2014 AQ LHCB Repl. by AAIJ 2020R $6276.28$ $\pm1.44$ $\pm0.36$ 4 AAIJ 2013 AS LHCB Repl. by AAIJ 2020R $6273.7$ $\pm1.3$ $\pm1.6$ 5 AAIJ 2012 AV LHCB Repl. by AAIJ 2020R $6275.6$ $\pm2.9$ $\pm2.5$ 6 AALTONEN 2008 M CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV $6300$ $\pm14$ $\pm5$ 6 ABAZOV 2008 T D0 ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV $6285.7$ $\pm5.3$ $\pm1.2$ 6 ABULENCIA 2006 C CDF Repl. by AALTONEN 2008M $6400$ $\pm390$ $\pm130$ 7 ABE 1998 M CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.8 TeV $6320$ $\pm60$ 8 ACKERSTAFF 1998 O OPAL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit Z}}$ 1  AAIJ 2020R uses the ${{\mathit B}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}^{+}}$, ${{\mathit J / \psi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}$, ${{\mathit J / \psi}}{{\mathit p}}{{\overline{\mathit p}}}{{\mathit \pi}^{+}}$, ${{\mathit J / \psi}}{{\mathit D}_{{{s}}}^{+}}$, ${{\mathit J / \psi}}{{\mathit D}^{0}}{{\mathit K}^{+}}$ and ${{\mathit B}_{{{s}}}^{0}}{{\mathit \pi}^{+}}$ modes. 2  Measured using ${{\mathit B}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit D}^{0}}{{\mathit K}^{+}}$ decays. 3  Uses ${{\mathit B}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit p}}{{\overline{\mathit p}}}{{\mathit \pi}^{+}}$ decays. 4  AAIJ 2013AS uses the ${{\mathit B}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit D}_{{{s}}}^{+}}$. 5  AAIJ 2012AV uses the ${{\mathit B}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}^{+}}$ mode and also measures the mass difference M(${{\mathit B}_{{{c}}}^{+}}$) $−$ M(${{\mathit B}^{+}}$) = $994.6$ $\pm1.3$ $\pm0.6$ MeV/c${}^{2}$. 6  Measured using a fully reconstructed decay mode of ${{\mathit B}_{{{c}}}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}}$. 7  ABE 1998M observed $20.4$ ${}^{+6.2}_{-5.5}$ events in the ${{\mathit B}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}{(1s)}}{{\mathit \ell}}{{\mathit \nu}_{{{{{\mathit \ell}}}}}}$ with a significance of $>4.8$ standard deviations. The mass value is estimated from $\mathit m({{\mathit J / \psi}{(1S)}}{{\mathit \ell}}$). 8  ACKERSTAFF 1998O observed 2 candidate events in the ${{\mathit B}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}$ channel with an estimated background of $0.63$ $\pm0.20$ events.

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