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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.)

Collider phenomenology of Hidden Valley mediators of spin 0 or 1/2 with semivisible jets

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Author(s):
Beauchesne, Hugues [1] ; Bertuzzo, Enrico [1] ; di Cortona, Giovanni Grilli [1] ; Tabrizi, Zahra [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Inst Fis, CP 66-318, BR-05315970 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Journal of High Energy Physics; n. 8 AUG 8 2018.
Web of Science Citations: 5
Abstract

Many models of Beyond the Standard Model physics contain particles that are charged under both Standard Model and Hidden Valley gauge groups, yet very little effort has been put into establishing their experimental signatures. We provide a general overview of the collider phenomenology of spin 0 or 1/2 mediators with non-trivial gauge numbers under both the Standard Model and a single new confining group. Due to the possibility of many unconventional signatures, the focus is on direct production with semivisible jets. For the mediators to be able to decay, a global U(1) symmetry must be broken. This is best done by introducing a set of operators explicitly violating this symmetry. We find that there is only a finite number of such renormalizable operators and that the phenomenology can be classified into five distinct categories. We show that large regions of the parameter space are already excluded, while others are unconstrained by current search strategies. We also discuss how searches could be modified to better probe these unconstrained regions by exploiting special properties of semivisible jets. (AU)

FAPESP's process: 16/17040-3 - Fenomelogia das Full-Hierarchy Quiver theories
Grantee:Hugues Beauchesne
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 15/25884-4 - Physics beyond the standard model: theoretical and phenomenological challenges
Grantee:Enrico Bertuzzo
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 16/02636-8 - Probing physics beyond the standard model using sterile neutrino models
Grantee:Zahra Khajeh Tabrizi
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 16/17041-0 - Setor de Higgs das Full-hierarchy Quiver Theories
Grantee:Giovanni Grilli Di Cortona
Support type: Scholarships in Brazil - Post-Doctorate