pdgLive Home   >   ${\mathit {\mathit c}}$ ${\mathit {\overline{\mathit c}}}$ MESONS (including possibly non-${\mathit {\mathit q}}$ ${\mathit {\overline{\mathit q}}}$ states)   >   ${{\mathit \chi}_{{{c1}}}{(4274)}}$   >   ${{\mathit \chi}_{{{c1}}}{(4274)}}$ MASS

${{\mathit \chi}_{{{c1}}}{(4274)}}$ MASS

INSPIRE   JSON  (beta) PDGID:

M233M

M233M VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 4290 \pm6}$ OUR AVERAGE  Error includes scale factor of 1.5.  See the ideogram below. $4298$ $\pm6$ ${}^{+4}_{-5}$ 1 AAIJ 2025 B   LHCB ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit p}}$( ${{\mathit J / \psi}}{{\mathit \phi}}$) ${{\mathit p}}$ $4294$ $\pm4$ ${}^{+3}_{-6}$ 24k 2 AAIJ 2021 E   LHCB ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ $4274.4$ ${}^{+8.4}_{-6.7}$ $\pm1.9$ 22 3 AALTONEN 2017   CDF ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ • • We do not use the following data for averages, fits, limits, etc. • • $4273.3$ $\pm8.3$ ${}^{+17.2}_{-3.6}$ 4289 4, 5 AAIJ 2017 C   LHCB ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ 1  From a fit using the five resonances reported in AAIJ 2021E, described by relativistic Breit-Wigner distributions. 2  From an amplitude analysis of the decay ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ with a significance of 18 $\sigma $. 3  From a fit to the invariant mass spectrum with a significance of 3.1 $\sigma $. 4  From an amplitude analysis of the decay ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ with a significance of 6.0 $\sigma $. 5  Superseded by AAIJ 2021E.

${{\mathit \chi}_{{{c1}}}{(4274)}}$ MASS (MeV)

References