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${{\mathit K}_{{2}}{(1820)}}$ MASS

INSPIRE   PDGID:

M146M

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 1819 \pm12}$ OUR AVERAGE $1853$ $\pm27$ ${}^{+18}_{-35}$ 4289 1 AAIJ 2017 C LHCB ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ $1816$ $\pm13$ 2 ASTON 1993 LASS 11 ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit \omega}}{{\mathit p}}$ • • We do not use the following data for averages, fits, limits, etc. • • $\sim$$1840$ 3 DAUM 1981 C CNTR 63 ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{-}}$2 ${{\mathit \pi}}{{\mathit p}}$ 1  From an amplitude analysis of the decay ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ with a significance of 3.0 $\sigma $. 2  From a partial wave analysis of the ${{\mathit K}^{-}}{{\mathit \omega}}$ system. 3  From a partial wave analysis of the ${{\mathit K}^{-}}$2 ${{\mathit \pi}}$ system.

References:

AAIJ 2017C PRL 118 022003 Observation of ${{\mathit J / \psi}}{{\mathit \phi}}$ Structures Consistent with Exotic States from Amplitude Analysis of ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ Decays Also PR D95 012002 Amplitude Analysis of ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ Decays ASTON 1993 PL B308 186 Evidence for Two $\mathit J{}^{P} = 2{}^{-}$ Strange Meson States in the ${{\mathit K}_{{2}}{(1770)}}$ Region DAUM 1981C NP B187 1 Diffractive Production of Strange Mesons at 63 GeV