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${{\mathit X}{(4050)}^{\pm}}$ MASS

INSPIRE   PDGID:

M191M

VALUE (MeV) DOCUMENT ID TECN  COMMENT $4051$ $\pm14$ ${}^{+20}_{-41}$ 1 MIZUK 2008 BELL ${{\overline{\mathit B}}^{0}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \chi}_{{c1}}{(1P)}}$ 1  From a Dalitz plot analysis with two Breit-Wigner amplitudes.

References:

MIZUK 2008 PR D78 072004 Observation of Two Resonancelike Structures in the ${{\mathit \pi}^{+}}{{\mathit \chi}_{{c1}}}$ Mass Distribution in Exclusive ${{\overline{\mathit B}}^{0}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \chi}_{{c1}}}$ Decays