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- W2946688325 abstract "It is possible, and for several reasons attractive, to explain a collection of recent anomalies involving $brightarrow smumu$ processes with a $Z^{prime}$ gauge boson coupled only to the third family in the weak eigenbasis. From this premise, requiring cancellation of all gauge anomalies (including mixed and gravitational anomalies) fixes a unique charge assignment for the third family Standard Model fermions, which is simply proportional to hypercharge. After a brief discussion of some general features of anomaly cancellation in $Z^prime$ theories, we discuss the phenomenology of such a `Third Family Hypercharge Model', which is subject to a trio of important constraints: (i) $B_s-bar{B}_s$ mixing, (ii) lepton universality of the $Z$ boson couplings, and (iii) constraints from direct searches for the $Z^prime$ boson at the LHC. Finally, in gauging third family hypercharge, this model forbids all Yukawa couplings (at the renormalisable level) save those of the third family, leading to a possible explanation of the heaviness of the third family." @default.
- W2946688325 created "2019-05-29" @default.
- W2946688325 creator A5054179895 @default.
- W2946688325 date "2019-05-15" @default.
- W2946688325 modified "2023-09-27" @default.
- W2946688325 title "Connecting neutral current $B$ anomalies with the heaviness of the third family." @default.
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