https://doi.org/10.1140/epjp/i2012-12085-y
Regular Article
B → τν in two-Higgs doublet models with MFV
1
Dipartimento di Fisica, Università di Roma Tre, Via della Vasca Navale 84, I-00146, Roma, Italy
2
Laboratori Nazionali di Frascati, INFN, Via E. Fermi 40, I-00044, Frascati, Italy
* e-mail: gino.isidori@lnf.infn.it
Received:
14
May
2012
Revised:
25
June
2012
Accepted:
17
July
2012
Published online:
9
August
2012
We analyse the B → τν decay in a generic two-Higgs doublet model satisfying the MFV hypothesis. In particular, we analyse under which conditions 
can be substantially enhanced over its SM value, taking into account the constraints of K → τν, B → X
s
γ, and B
s
→ μ
+
μ
−. We find that for large tan β values and Peccei-Quinn symmetry breaking terms of 
a sizable (∼ 50%) enhancement of is possible, even for m
H
∼ 1 TeV.
© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg, 2012
