https://doi.org/10.1140/epjc/s10052-019-7103-y
Regular Article - Theoretical Physics
New physics signature in
effective width asymmetries
1
Division de Ciencias e Ingenierías, Universidad de Guanajuato, C.P. 37150, León, Guanajuato, Mexico
2
Department of Physics, Faculty of Arts and Sciences, Süleyman Demirel University, 32260, Isparta, Turkey
3
Depto. de Física, Universidad de los Andes, A. A. 4976-12340, Bogotá, Colombia
* e-mail: gaberfaisel@sdu.edu.tr
Received:
29
March
2019
Accepted:
2
July
2019
Published online:
15
July
2019
Violation of charge conjugation-parity () symmetry plays a major rule in the dominance of matter in our universe. A kind of
violation results from the asymmetry of the life time measured in
and
, here M is a heavy meson, decays to final states which is referred in the literature as
. In this paper, we give an estimation of the upper bound on
for the Cabibbo Favored
decay process in different models. We show that in the standard model,
. Recently a bound on
has been obtained:
. This result motivates further studies on
in beyond standard model physics. In the framework of two Higgs doublet model with generic Yukawa structure, we show that
which is several orders of magnitude smaller than the current experimental value. Finally, in the framework of left-right symmetric models in which the mixing between the left and the right gauge bosons is allowed and the left-right symmetry is not manifest at unification scale, we find that
can be as large as
which is one order of magnitude smaller than the experimentally measured value by LHCb collaborators.
© The Author(s), 2019