scholarly journals Triple and quartic interactions of Higgs bosons in the two-Higgs-doublet model with CP-violation

2003 ◽  
Vol 28 (2) ◽  
pp. 223-236 ◽  
Author(s):  
M.N. Dubinin ◽  
A.V. Semenov
1994 ◽  
Vol 09 (11) ◽  
pp. 1873-1888 ◽  
Author(s):  
L. LAVOURA

I suggest a two-Higgs-doublet model in which CP violation is mediated only by the neutral Higgs bosons, via the mechanism of scalar-pseudoscalar mixing. In this model there is no CP violation in the exchange of either W bosons or charged Higgs bosons. The model has only two basic CP-violating quantities. I remark that other models of this kind, but with more than two Higgs doublets, may also be built.


1990 ◽  
Vol 337 (2) ◽  
pp. 284-312 ◽  
Author(s):  
Andrzej J. Buras ◽  
Paweł Krawczyk ◽  
Markus E. Lautenbacher ◽  
Claudia Salazar

2010 ◽  
Vol 25 (25) ◽  
pp. 4827-4837 ◽  
Author(s):  
WEN-JUN LI ◽  
YING-YING FAN ◽  
LIN-XIA LÜ ◽  
SU-ZHI GAO ◽  
GONG-WEI LIU

We study the lepton-flavor-violating processes of τ- → μ-PP decays with PP = K+K-, [Formula: see text], π+π-, π0π0 in the framework of two-Higgs-doublet model III by virtue of the chiral perturbation theory. In this model, only three neutral Higgs bosons contribute to these decays. With the current experimental constraints, we show that (a) the contributions of the |λuu(dd)| term are very small for these four decays; (b) we get the correlation between |λss| and |λτμ|; for |λτμ| ~ 10–400, one has |λss| ~ 40–1; (c) in the existing model parameter space, Br (τ- → μ- K+K-) could reach the order of [Formula: see text], but Br (τ → μ-π+π-/π0π0) are too small to be observed.


2011 ◽  
Vol 26 (15) ◽  
pp. 2523-2535 ◽  
Author(s):  
XIAN-WEI KANG ◽  
HAI-BO LI ◽  
GONG-RU LU ◽  
ALAKABHA DATTA

In this paper, we study CP violation in [Formula: see text] and [Formula: see text] decays, where B, P and V denote a light spin-½ baryon, pseudoscalar and a vector meson respectively. In these processes the T odd CP violating triple-product (TP) correlations are examined. The genuine CP violating observables which are composed of the helicity amplitudes occurring in the angular distribution are constructed. Experimentally, by performing a full angular analysis it is shown how one may extract the helicity amplitudes and then obtain the TP asymmetries. We estimate the TP asymmetries in [Formula: see text] decays to be negligible in the Standard Model making these processes an excellent place to look for new physics. Taking a two-Higgs doublet model, as an example of new physics, we show that large TP asymmetries are possible in these decays. Finally, we discuss how BES-III and super τ-charm experiments will be sensitive to these CP violating signals in [Formula: see text] decays.


1994 ◽  
Vol 20 (8) ◽  
pp. 1159-1168 ◽  
Author(s):  
L Epele ◽  
H Fanchiotti ◽  
C Garcia Canal ◽  
D Gomez Dumm

2016 ◽  
Vol 31 (33) ◽  
pp. 1644009 ◽  
Author(s):  
Ning Chen

The two-Higgs-doublet model contains extra Higgs bosons with mass ranges spanning from several hundred GeV to about 1 TeV. We study the possible experimental searches for the neutral Higgs bosons of [Formula: see text] and [Formula: see text] at the future high-luminosity LHC runs. Besides of the conventional search modes that are inspired by the supersymmetric models, we discuss two search modes which were not quite addressed previously. They are the decay modes of [Formula: see text] and [Formula: see text]. Thanks to the technique of tagging boosted objects of SM-like Higgs bosons and top quarks, we show the improved mass reaches for heavy neutral Higgs bosons with masses up to [Formula: see text]. The modes proposed here are complementary to the conventional experimental searches motivated by the MSSM.


2018 ◽  
Vol 97 (1) ◽  
Author(s):  
Chien-Yi Chen ◽  
Hao-Lin Li ◽  
Michael Ramsey-Musolf

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