Can the top quark evade the Fermilab Tevatron mass bound via mixing with singlet quarks?

WEI-SHU HOU2019-12-272019-12-271991https://scholars.lib.ntu.edu.tw/handle/123456789/442857Can the top quark evade the Fermilab Tevatron mass bound via mixing with singlet quarks?journal article10.1103/PhysRevLett.69.35872-s2.0-25744455900https://www.scopus.com/inward/record.uri?eid=2-s2.0-25744455900&doi=10.1103%2fPhysRevLett.69.3587&partnerID=40&md5=488979273cc9e6b922b07bb005ac3f56