Speaker
Description
Lack of new states at the TeV scale challenges all kinds of solutions to the hierarchy problem but the current B anomalies might be a new guidance. One possible solution to the neutral current B anomalies is a TeV-scale $Z’$ boson of the broken $U(1)_F$ gauged flavor symmetry, which might implies the connection between the two problems. In this talk, I will realize this idea based on a $SU(4)/Sp(4)$ composite Higgs model. The symmetry breaking by the strong dynamics introduces the composite Higgs doublet as pseudo-Nambu-Goldstone bosons. At the same time, the $U(1)_F$ gauged flavor symmetry as a subgroup of $SU(4)$ is also broken by the strong dynamics, which introduced a $Z’$ boson at the TeV scale as desired. The allowed parameter space to explain the B anomalies without violating other experimental constraints is probed. The UV origin of the $U(1)_F$ flavor symmetry will also be discussed.
