Search for a massless dark photon in Λc+→pγ′ decay
М. Н. Ачасов, P. Adlarson, M. Albrecht, R. Aliberti et autres
A search for a massless dark photon ${\ensuremath{\gamma}}^{\ensuremath{'}}$ is conducted using $4.5\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of ${e}^{+}{e}^{\ensuremath{-}}$ collision data collected at center-of-mass energies between 4.600 and 4.699 GeV with the BESIII detector at BEPCII. No significant signal is observed, and the upper limit …
cn, ru, se, de, it, pl, mn, us, tr, gb (code pays fourni par la source)