TY - JOUR
T1 - On the universal texture in the PA-2HDM for the V-spin case
AU - Carrillo-Monteverde, A.
AU - Gómez-Ávila, S.
AU - López-Lozano, L.
N1 - Publisher Copyright:
© 2020 World Scientific Publishing Company.
PY - 2020/4/30
Y1 - 2020/4/30
N2 - In a version of the PA-2HDM where only mixing between third and second fermion generations is allowed, we propose a mechanism to generate the second Yukawa matrix through a Unitary V-spin flavor transformation on the mass matrix for quarks and leptons. This flavor structure is constrained to be universal, that is, we use the same parameters to generate Yukawa matrix elements in the quark and leptonic sectors, reducing drastically the number of free parameters of the PA-2HDM. As a consequence of this restrictive condition, we obtain relations between the Yukawa matrix elements, that we call the Universal Texture Constraint (UTC). We obtained an interval of values for the second Yukawa matrix elements, expressed in terms of the Cheng and Sher ansatz, for τ → μμ+μ- and τ → γμ coming from the UTC and experimental bounds for light scalar masses. Finally, we find the allowed parameter region when the experimental bounds and values for Bs → μμ decays, Bs0 -B̄s0 mixing, τ → μμ+μ- and τ → γμ are considered.
AB - In a version of the PA-2HDM where only mixing between third and second fermion generations is allowed, we propose a mechanism to generate the second Yukawa matrix through a Unitary V-spin flavor transformation on the mass matrix for quarks and leptons. This flavor structure is constrained to be universal, that is, we use the same parameters to generate Yukawa matrix elements in the quark and leptonic sectors, reducing drastically the number of free parameters of the PA-2HDM. As a consequence of this restrictive condition, we obtain relations between the Yukawa matrix elements, that we call the Universal Texture Constraint (UTC). We obtained an interval of values for the second Yukawa matrix elements, expressed in terms of the Cheng and Sher ansatz, for τ → μμ+μ- and τ → γμ coming from the UTC and experimental bounds for light scalar masses. Finally, we find the allowed parameter region when the experimental bounds and values for Bs → μμ decays, Bs0 -B̄s0 mixing, τ → μμ+μ- and τ → γμ are considered.
KW - 2HDM
KW - B mesons
KW - flavor physics
KW - phenomenology
KW - τ decays
UR - http://www.scopus.com/inward/record.url?scp=85085311209&partnerID=8YFLogxK
U2 - 10.1142/S0217751X20500591
DO - 10.1142/S0217751X20500591
M3 - Artículo
AN - SCOPUS:85085311209
SN - 0217-751X
VL - 35
JO - International Journal of Modern Physics A
JF - International Journal of Modern Physics A
IS - 11-12
M1 - 2050059
ER -