Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-07-29
Phys.Rev.D82:073012,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
34 pages, 12 figures, article
Scientific paper
10.1103/PhysRevD.82.073012
We discuss tests of the charged Higgs sector of the Two Higgs Doublet Model (2HDM) of Type II in the light of recent flavour physics data. Particular attention is paid to recent measurement of purely leptonic decays of heavy-light mesons, which depart more or less significantly from the Standard Model (SM) predictions. We derive constraints on the parameters of the 2HDM type II from leptonic and semileptonic $\Delta F=1$ decays as well as loop processes ($b \to s \gamma$, $B\bar{B}$ mixing or $Z\to\bar{b}b$) sensitive to charged Higgs contributions. The outcome of this work is that while 2HDM Type II can fit individual observable through fine-tuning schemes, in a combined analysis it does not perform better than the SM by favouring a decoupling solution. Assuming that 2HDM Type II is realized in Nature, constraints on its parameters ($m_{H^+}$ and $\tan \beta$) are derived. A limit on the charged Higgs mass $m_{H^+} > 316 \; {\rm GeV}$ at $95\%$~CL is obtained irrespective of the value of $\tan \beta$. This limit is dominated by the $b\rightarrow s \gamma$ branching ratio measurement. All results have been obtained with the \ckmfitter\ analysis package, featuring the frequentist statistical approach \rfit\ to handle theoretical uncertainties.
Deschamps Olivier
Descotes-Genon Sebastien
Monteil S.
Niess V.
T'Jampens S.
No associations
LandOfFree
The Two Higgs Doublet of Type II facing flavour physics data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Two Higgs Doublet of Type II facing flavour physics data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Two Higgs Doublet of Type II facing flavour physics data will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-521700