# Rencontre de Physique des Particules 2015

15-16 janvier 2015
Institut Henri Poincaré
Fuseau horaire Europe/Paris

## Constraining the Doublet Left-Right Model

15 janv. 2015 à 15:04
14m
Chair: Emi Kou, Amphi Hermite (Institut Henri Poincaré)

### Chair: Emi Kou, Amphi Hermite

#### Institut Henri Poincaré

11, rue Pierre et Marie Curie 75005 Paris

### Orateur

M. Luiz Henrique Vale Silva (LPT)

### Description

Left-Right Models (LRM) attempt at giving an understanding of the violation of parity (or charge-conjugation) by the weak interactions in the SM through a similar description of left- and right-handed currents at high energies. The spontaneous symmetry breaking of $SU(2)_L \times SU(2)_R \times U(1)_{(B-L)}$ is usually triggered by an enlarged Higgs sector, usually consisting of two triplet fields (left-right symmetry breaking) and a bi-doublet (electroweak symmetry breaking). I reconsider an alternative LRM with doublet instead of triplet fields. After explaining some features of this model, I discuss constraints on its parameters using electroweak precision observables (combined using the CKMfitter frequentist statistical framework) and neutral-meson mixing observables.

### Documents de présentation

 Transparents
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