Two Higgs doublet model of type II facing flavor physics data

Journal Article · Fri Oct 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.073012· OSTI ID:21421353

Deschamps, Olivier; Monteil, Stephane; Niess, Valentin; Descotes-Genon, Sebastien; T'Jampens, Stephane; Tisserand, Vincent ^[1]

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1. Clermont Universite, Universite Blaise Pascal, CNRS/IN2P3 Laboratoire de Physique Corpusculaire, BP 10448, F-63000 Clermond-Ferrand (France)

We discuss tests of the charged Higgs sector of the two Higgs doublet model (2HDM) of type II in the light of recent flavor 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{yields}s{gamma}, BB mixing, or Z{yields}bb) sensitive to charged Higgs contributions. The outcome of this work is that while 2HDM type II can fit the individual observable through fine-tuning schemes, in a combined analysis it does not perform better than the standard model by favoring a decoupling solution. Assuming that 2HDM type II is realized in nature, constraints on its parameters (m{sub H}{sup +} and tan{beta}) are derived. A limit on the charged Higgs mass m{sub H}{sup +}>316 GeV at 95% CL is obtained irrespective of the value of tan{beta}. This limit is dominated by the b{yields}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.

• OSTI ID: 21421353
• Journal Information: Physical Review. D, Particles Fields, Vol. 82, Issue 7; Other Information: DOI: 10.1103/PhysRevD.82.073012; (c) 2010 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
DECOUPLING
FLAVOR MODEL
FORECASTING
GEV RANGE 100-1000
HIGGS BOSONS
HIGGS MODEL
KOBAYASHI-MASKAWA MATRIX
LEPTONIC DECAY
MASS
MATHEMATICAL SOLUTIONS
MESONS
MIXING
STANDARD MODEL
BASIC INTERACTIONS
BOSONS
COMPOSITE MODELS
DECAY
DIMENSIONLESS NUMBERS
ELEMENTARY PARTICLES
ENERGY RANGE
FIELD THEORIES
GEV RANGE
GRAND UNIFIED THEORY
HADRONS
INTERACTIONS
MATHEMATICAL MODELS
MATRICES
PARTICLE DECAY
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM FIELD THEORY
QUARK MODEL
UNIFIED GAUGE MODELS
WEAK INTERACTIONS
WEAK PARTICLE DECAY