${{\mathit B}_{{{c}}}{(2S)}^{\pm}}$ MASS

INSPIRE   PDGID:
M217M
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 6871.2 \pm1.0}$ OUR AVERAGE
$6871.7 \pm1.3 \pm0.3$ 24 1, 2
AAIJ
2019Y
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV
$6870.6 \pm1.4 \pm0.3$ 51 3, 4
SIRUNYAN
2019M
 CMS ${{\mathit p}}{{\mathit p}}$ at 13 TeV
• • We do not use the following data for averages, fits, limits, etc. • •
not seen 5
AAIJ
2018AL
 LHCB ${{\mathit p}}{{\mathit p}}$ at 8 TeV
$6842$ $\pm4$ $\pm5$ 57 6, 7
AAD
2014AQ
 ATLS ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
1  AAIJ 2019Y observed ${{\mathit B}_{{{c}}}{(2S)}^{+}}$ in the decay mode ${{\mathit B}_{{{c}}}{(2S)}^{+}}$ $\rightarrow$ ${{\mathit B}_{{{c}}}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ ( ${{\mathit B}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}^{+}}$) with 2.2 (3.2) global (local) standard deviations significance.
2  AAIJ 2019Y reports mass difference measurement of M(${{\mathit B}_{{{c}}}{(2S)}^{+}}$) $−$ M(${{\mathit B}_{{{c}}}^{+}}$) = $597.2$ $\pm1.3$ $\pm0.1$ MeV. We have adjusted this measurement with our best value of M(${{\mathit B}_{{{c}}}^{+}}$) = $6274.47$ $\pm0.32$ (MeV). The first uncertainty of the M(${{\mathit B}_{{{c}}}{(2S)}^{+}}$) value is a total of uncertainties reported by the experiment and the second one comes from our best value of M(${{\mathit B}_{{{c}}}^{+}}$).
3  SIRUNYAN 2019M observed ${{\mathit B}_{{{c}}}{(2S)}^{+}}$ in the decay mode ${{\mathit B}_{{{c}}}{(2S)}^{+}}$ $\rightarrow$ ${{\mathit B}_{{{c}}}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ ( ${{\mathit B}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}^{+}}$) with 6.5 standard deviations significance.
4  SIRUNYAN 2019M reports mass difference measurement of M(${{\mathit B}_{{{c}}}{(2S)}^{+}}$) $−$ M(${{\mathit B}_{{{c}}}^{+}}$) = $596.1$ $\pm1.2$ $\pm0.8$ MeV. We have adjusted this measurement with our best value of M(${{\mathit B}_{{{c}}}^{+}}$) = $6274.47$ $\pm0.32$ (MeV). The first uncertainty of the M(${{\mathit B}_{{{c}}}{(2S)}^{+}}$) value is a total of uncertainties reported by the experiment and the second one comes from our best value of M(${{\mathit B}_{{{c}}}^{+}}$).
5  AAIJ 2018AL reports an upper limit on the ratio of production cross sections for $\lbrack{}{\mathit \sigma (}{{\mathit B}_{{{c}}}{(2S)}^{+}}{)}/{\mathit \sigma (}{{\mathit B}_{{{c}}}^{+}}{)}]\cdot{}$B( ${{\mathit B}_{{{c}}}{(2S)}^{+}}$ $\rightarrow$ ${{\mathit B}_{{{c}}}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) $<$ $0.04 - 0.09$ at 95$\%$ CL for the mass value reported by AAD 2014AQ.
6  Observed in the decay mode ${{\mathit B}_{{{c}}}{(2S)}^{+}}$ $\rightarrow$ ${{\mathit B}_{{{c}}}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ ( ${{\mathit B}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}^{+}}$) with 5.2 standard deviations significance.
7  Might be the ${{\mathit B}_{{{c}}}^{*}{(2S)}}$.
References