Possible v_T Mass Measurement Study at Beijing Spectrometer

This paper investigates the feasibility of the T neutrino mass measurement at the Beijing Spectrometer (BES). The T event selection criteria have been obtained by studying the earlier BES D_s data. Based on a total integrated luminosity of 35pb^-1 at √s = 4.03 GeV, an upper limit on m_vT, of approximately 25 MeV appears possible for the T →K⁺K^-πv_T, decay channel.