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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Higgs flavor violation as a signal to discriminate models

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Author(s):
de Lima, L. [1] ; Machado, C. S. [1] ; Matheus, R. D. [1] ; do Prado, L. A. F. [1]
Total Authors: 4
Affiliation:
[1] Univ Estadual Paulista, Inst Fis Teor, Sao Paulo, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Journal of High Energy Physics; n. 11 NOV 12 2015.
Web of Science Citations: 25
Abstract

We consider the Higgs Lepton Flavor Violating process h -> tau mu, in which CMS found a 2.5 sigma excess of events, from a model independent perspective, and find that it is difficult to generate this operator without also obtaining a sizeable Wilson coefficient for the dipole operators responsible for tau radiative decay, constrained by BABAR to BR(tau -> mu gamma) < 4.4 x 10(-8). We then survey a set of representative models for new physics, to determine which ones are capable of evading this problem. We conclude that, should this measurement persist as a signal, type-III Two Higgs Doublet Models and Higgs portal-like models are favored, while SUSY and Composite Higgs models are unlikely to explain it. (AU)

FAPESP's process: 13/01907-0 - São Paulo Research and Analysis Center
Grantee:Sergio Ferraz Novaes
Support type: Research Projects - Thematic Grants
FAPESP's process: 12/21436-9 - Hierarchical quiver Gauge theories: model building and phenomenology
Grantee:Leonardo de Lima
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 12/21627-9 - The leptonic sector in Quiver Gauge Theories: theory and phenomenology
Grantee:Camila Sampaio Machado
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 13/03862-3 - Effective theories and lepton flavor violation in Higgs decays
Grantee:Leônidas Augusto Fernandes Do Prado
Support type: Scholarships in Brazil - Master