Coupling spans of the Higgs-like boson

• Published in: The journal of high energy physics Vol. 2013; no. 2; pp. 1 - 16
• Main Authors: Dobrescu, Bogdan A., Lykken, Joseph D.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-02-2013; Springer Nature B.V; Springer Berlin
• Subjects: Bosons; Classical and Quantum Gravitation; Decay; Elementary Particles; High energy physics; Joining; Physics; Physics and Astronomy; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Relativity Theory; Standard model (particle physics); String Theory; Symmetry; Beyond Standard Model; Higgs Physics
• ISSN: 1029-8479; 1029-8479
• DOI: 10.1007/JHEP02(2013)073

A
bstract
Using the LHC and Tevatron data, we set upper and lower limits on the total width of the Higgs-like boson. The upper limit is based on the well-motivated assumption that the Higgs coupling to a
W
or
Z
pair is not much larger than in the Standard Model. These width limits allow us to convert the rate measurements into ranges for the Higgs couplings to various particles. A corollary of the upper limit on the total width is an upper limit on the branching fraction of exotic Higgs decays. Currently, this limit is 47% at the 95% CL if the electroweak symmetry is broken only by doublets.