${{\mathit \eta}_{{{1}}}{(1855)}}$ MASS

INSPIRE   PDGID:
M267M
VALUE (MeV) DOCUMENT ID TECN  COMMENT
$1855$ $\pm9$ ${}^{+6}_{-1}$ 1
ABLIKIM
2022AI
 BES3 ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}}{{\mathit \eta}^{\,'}}$
1  From a Breit-Wigner fit involving 9 resonances and the resonating exotic ${{\mathit \eta}_{{{1}}}{(1855)}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \eta}^{\,'}}{\mathit P}{\mathrm -wave}$. For analysis details see ABLIKIM 2022AS.
References