1
From an amplitude analysis of the decay ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ with a significance of 8.5 $\sigma $.
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
Cerenkov Ring Imaging and Spectroscopy of Charged ${{\mathit K}^{*}}$ Interactions at 11 ${\mathrm {GeV/}}\mathit c$
ASTON
1988
NP B296 493
A Study of ${{\mathit K}^{-}}$ ${{\mathit \pi}^{+}}$ Scattering in the Reaction ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit n}}$ at 11 ${\mathrm {GeV/}}\mathit c$
ASTON
1987
NP B292 693
The Strange Meson Resonances Observed in the Reaction ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\overline{\mathit K}}^{0}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$ at 11 ${\mathrm {GeV/}}\mathit c$
ETKIN
1980
PR D22 42
Measurement and Partial Wave Analysis of the Reaction ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit n}}$ at 6 ${\mathrm {GeV/}}\mathit c$
ESTABROOKS
1978
NP B133 490
Study of ${{\mathit K}}$ ${{\mathit \pi}}$ Scattering using the Reactions ${{\mathit K}^{\pm}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{+}}{{\mathit n}}$ and ${{\mathit K}^{\pm}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{-}}{{\mathit \Delta}^{++}}$ at 13 ${\mathrm {GeV/}}\mathit c$
Also
PR D17 658
Charged ${{\mathit K}^{*}{(892)}}$ Production at 13 ${\mathrm {GeV/}}\mathit c$
