Abstract:We study the four-body decays of neutral flavored mesons,including■,and■.These processes,which could be induced by a hypothetical doubly-charged scalar particle,do not conserve the lepton number.Assuming,as...Abstract:We study the four-body decays of neutral flavored mesons,including■,and■.These processes,which could be induced by a hypothetical doubly-charged scalar particle,do not conserve the lepton number.Assuming,as an example,that the mass of the doubly-charged particle is 1000 Ge V,and using the upper bounds of the couplings,we calculate the branching ratios of different channels.For■,and■,it is of the order of 10^(-30),10^(-32)–10^(-29),and 10^(-33)–10^(-28),respectively.Based on the experimental results for the■channels,we also find the upper limit for the quantity■.展开更多
基金Supported by National Natural Science Foundation of China(11405037,11575048,11505039)
文摘Abstract:We study the four-body decays of neutral flavored mesons,including■,and■.These processes,which could be induced by a hypothetical doubly-charged scalar particle,do not conserve the lepton number.Assuming,as an example,that the mass of the doubly-charged particle is 1000 Ge V,and using the upper bounds of the couplings,we calculate the branching ratios of different channels.For■,and■,it is of the order of 10^(-30),10^(-32)–10^(-29),and 10^(-33)–10^(-28),respectively.Based on the experimental results for the■channels,we also find the upper limit for the quantity■.
