pdgLive Home   >   ${\mathit {\mathit c}}{\mathit {\overline{\mathit c}}}$ MESONS (including possibly non-${\mathit {\mathit q}}{\mathit {\overline{\mathit q}}}$ states)   >   ${{\mathit X}{(4160)}}$   >   ${{\mathit X}{(4160)}}$ MASS

${{\mathit X}{(4160)}}$ MASS

INSPIRE   PDGID:

M190M

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 4153 {}^{+23}_{-21}}$ OUR AVERAGE $4146$ $\pm18$ $\pm33$ 24k 1 AAIJ 2021 E LHCB ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ $4156$ ${}^{+25}_{-20}$ $\pm15$ 24 PAKHLOV 2008 BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit X}}$ 1  From an amplitude analysis of the decay ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ with a significance of 4.8 $\sigma $.

References:

AAIJ 2021E PRL 127 082001 Observation of New Resonances Decaying to $J/\psi K^+$+ and $J/\psi \phi$ PAKHLOV 2008 PRL 100 202001 Production of New Charmoniumlike States in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit D}^{(*)}}{{\overline{\mathit D}}^{(*)}}$ at $\sqrt {s }$ $\simeq{}$ 10.6 GeV