On mass limits for vector leptoquarks from decays with account of fermion mixing

Alexander D. Smirnov, D. Melikhov, I. Volobuev
2017 EPJ Web of Conferences  
The contributions of the vector leptoquarks to branching ratios of K 0 L , B 0 , B s → l l decays are calculated with account of fermion mixing in leptoguark currents of the general type and the corresponding mass limit for the vector leptoquarks resulting from the current data on these decays is obtained and analysed. It is found that the vector leptoquarks with masses m V > 78 T eV are consistent with current data on these decays. The branching ratios of K 0 L , B 0 , B s → l l decays at the
more » ... l l decays at the possible lower mass m V = 78 T eV are presented and the decays B 0 → µ + µ − , B s → eµ, B s → µ + µ − are shown to be the most perspective ones for setting the new more stringent mass limits for the vector leptoquarks.
doi:10.1051/epjconf/201715802004 fatcat:ju3haax6ozbgle6r447ufg6sde