<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>B</mml:mi><mml:mi>c</mml:mi></mml:msub></mml:math> meson spectrum via Dyson-Schwinger equation and Bethe-Salpeter equation approach

Abstract

We predict the masses of the low-lying ${B}_{c}$ mesons with ${J}^{P}={0}^{\ensuremath{-}},{1}^{\ensuremath{-}},{0}^{+},{1}^{+},{2}^{+}$, using a flavor-dependent interaction pattern which gives an unified successful description of the light, heavy-light, and heavy mesons and is also applicable to the radial excited heavy mesons. The errors are controlled carefully. With the errors from the rainbow ladder (RL) approximation subdued, our predictions are consistent with the lattice QCD (lQCD) and quark model results, which support strongly that the flavor-dependent interaction pattern is reasonable. Our predictions provide significant guides to the experiment search of the ${B}_{c}$ mesons.

Topics & Concepts