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${{\mathit B}_{{{c}}}{(1P)}^{\pm}}$ MASS

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M271M

M271M VALUE (MeV) DOCUMENT ID TECN  COMMENT • • We do not use the following data for averages, fits, limits, etc. • • $6704.8$ $\pm5.5$ $\pm2.8$ 1, 2 AAIJ 2025 AE   LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV $6752.4$ $\pm9.5$ $\pm3.1$ 3, 2 AAIJ 2025 AE   LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV 1  The observed structure in ${{\mathit B}_{{{c}}}^{\pm}}{{\mathit \gamma}}$ is described by two Gaussian functions with power-law tails, the other one is at 6752.4 MeV. 2  Consistent with unresolved contributions from ${}^{3}\!{\mathit P}_{0}$, ${}^{3}\!{\mathit P}_{2}$, mixed ${}^{3}\!{\mathit P}_{1}$ and ${}^{1}\!{\mathit P}_{1}$ (both decaying radiatively to ${{\mathit B}_{{{c}}}^{\pm}}$ and ${{\mathit B}_{{{c}}}^{*\pm}}$) (see AAIJ 2025AF). 3  The observed structure in $B_c^\pm\gamma$ is described by two Gaussian functions with power-law tails, the other one is at 6704.8 MeV.

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