NEUTRAL HIGGS AND CP VIOLATION

1991 ◽  
Vol 06 (18) ◽  
pp. 1693-1700 ◽  
Author(s):  
ANJAN S. JOSHIPURA
Keyword(s):  
Cp Violation ◽  
Mass Difference ◽  
Discrete Symmetry ◽  
Higgs Bosons ◽  
Neutral Currents ◽  
Flavor Changing ◽  
Flavor Changing Neutral Currents

An extended SU (2) × U (1) model with two-Higgs doublets and a discrete symmetry is considered. The latter is chosen to naturally obtain suppressed and hierarchical flavor-changing neutral currents induced by Higgs bosons. As a consequence, Higgs as light as 10 GeV is consistent with the observed KL – KS mass difference and problems with perturbative unitarity are avoided. In this model, the neutral Higgs can generate CP violation in K0 − K0 system and the consequences of a scheme where these exchanges provide the only source of CP violation are worked out.

scholarly journals EFFECT OF BOTH Z AND Z′-MEDIATED FLAVOR-CHANGING NEUTRAL CURRENTS ON Bs →τ+τ- DECAY

2012 ◽  
Vol 27 (31) ◽  
pp. 1250184 ◽  
Author(s):  
S. SAHOO ◽  
D. BANERJEE ◽  
M. KUMAR ◽  
S. MOHANTY
Keyword(s):  
Cp Violation ◽  
Standard Model ◽  
Rare Decay ◽  
Charge Asymmetry ◽  
Branching Ratio ◽  
New Physics ◽  
Neutral Currents ◽  
Flavor Changing ◽  
Potential Source ◽  
Flavor Changing Neutral Currents

In recent years, Bs →τ+τ- rare decay has attracted a lot of attention since it is very sensitive to the structure of standard model (SM) and potential source of new physics beyond SM. In this paper, we study the effect of both Z and Z′-mediated flavor-changing neutral currents on the Bs →τ+τ- decay. We find the branching ratio B(Bs→τ+τ-) is enhanced relative to SM prediction, which would help to explain the recently observed CP-violation from like-sign dimuon charge asymmetry in the B system.

scholarly journals Two Higgs pair heterotic vacua and flavor-changing neutral currents

2008 ◽  
Vol 2008 (10) ◽  
pp. 046-046 ◽  
Author(s):  
Michael Ambroso ◽  
Volker Braun ◽  
Burt A Ovrut
Keyword(s):  
Neutral Currents ◽  
Flavor Changing ◽  
Flavor Changing Neutral Currents

scholarly journals Direct probes of flavor-changing neutral currents in e + e −-collisions

2015 ◽  
Vol 2015 (11) ◽  
Author(s):  
Alexander Khodjamirian ◽  
Thomas Mannel ◽  
Alexey A. Petrov
Keyword(s):  
Neutral Currents ◽  
Flavor Changing ◽  
Flavor Changing Neutral Currents

scholarly journals Search for flavor changing neutral currents in top quark decays in pp collisions at 7 TeV

2013 ◽  
Vol 718 (4-5) ◽  
pp. 1252-1272 ◽  
Author(s):  
S. Chatrchyan ◽  
V. Khachatryan ◽  
A.M. Sirunyan ◽  
A. Tumasyan ◽  
W. Adam ◽  
...  
Keyword(s):  
Top Quark ◽  
Neutral Currents ◽  
Pp Collisions ◽  
Flavor Changing ◽  
Quark Decays ◽  
Flavor Changing Neutral Currents
Sign in / Sign up

Export Citation Format

Share Document