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B_c Meson Spectrum Via Dyson-Schwinger Equation and Bethe-Salpeter Equation Approach

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arxiv 2001.00161 v1 pith:FCSE4VRY submitted 2020-01-01 hep-ph

$B_c$ Meson Spectrum Via Dyson-Schwinger Equation and Bethe-Salpeter Equation Approach

classification hep-ph
keywords mesonsdependentequationerrorsflavorheavyinteractionpattern
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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abstract

We predict the masses of the lowlying $B_c$ mesons with $J^P = 0^-,\,1^-,\,0^+,\,1^+,\,2^+$, using a flavor dependent interaction pattern which gives an unified successful description of the light, heavy-light and heavy mesons and is also appliable to the radial excited heavy mesons. The errors are controlled carefully. With the errors from the RL approximation subduced, our predictions are consistent with the lQCD and quark model results, which supports strongly that the flavor dependent interaction pattern is reasonable. Our predictions provide significant guides to the experiment search of the $B_c$ mesons.

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  1. Observation of a $B_c^{*+}$ meson with the ATLAS detector

    hep-ex 2026-05 conditional novelty 8.0

    First observation of the B_c^{*+} meson with mass difference 64.5 MeV from the ground-state B_c^+ at >8 sigma significance using ATLAS data.