A Akeroyd

A Delgado

A Joglekar

A Kusenko

ATLAS collaboration

B Batell

B Bellazzini

C. E. M. Wagner

CL Wainwright

CMS collaboration

D Carmi

DM Pierce

EJ Chun

G Bennett

G D’Ambrosio

GF Giudice

H An

H Davoudiasl

HM Lee

I Low

I. Low

J Ellis

J Espinosa

J Guasch

J Hisano

J Lee

J-J Cao

K Schmidt-Hoberg

L Wang

LG Almeida

LHCb collaboration

M Carena

M Chala

M Claudson

M Frank

M Montull

M Voloshin

M. Carena

MJ Duncan

MS Carena

N Arkani-Hamed

N Haba

N. R. Shah

PP Giardino

R Rattazzi

R Sato

S. Gori

SP Martin

SR Coleman

T Aaltonen

T Corbett

T Kitahara

T Moroi

T Plehn

U Haisch

W Altmannshofer

W-F Chang

Abstract
          
          Current Higgs data at the Large Hadron Collider is compatible with a SM signal at the 2σ level, but the central value of the signal strength in the diphoton channel is enhanced with respect to the SM expectation. If the enhancement resides in the diphoton partial decay width, the data could be accommodated in the Minimally Super-symmetric Standard Model (MSSM) with highly mixed light staus. We revisit the issue of vacuum instability induced by large mixing in the stau sector, including effects of a radiatively-corrected tau Yukawa coupling. Further, we emphasize the importance of taking into account the tan β dependence in the stability bound. While the metastability of the Universe constrains the possible enhancement in the Higgs to diphoton decay width in the light stau scenario, an increase of the order of 50% can be achieved in the region of large tan β. Larger enhancements may be obtained, but would require values of tan β associated with non-perturbative values of the tau Yukawa coupling at scales below the GUT scale, thereby implying the presence of new physics beyond the MSSM.</jats:p

Crossref

Journal of High Energy Physics

Vacuum stability and Higgs diphoton decays in the MSSM

https://link.springer.com/content/pdf/10.1007%2FJHEP02%282013%29114.pdf

Vacuum stability and Higgs diphoton decays in the MSSM

Abstract

Similar works

Full text

Available Versions

Crossref