Probing the light radion through diphotons at the Large Hadron Collider

Bhattacharya, Satyaki ; Frank, Mariana ; Huitu, Katri ; Maitra, Ushoshi ; Mukhopadhyaya, Biswarup ; Rai, Santosh Kumar (2015) Probing the light radion through diphotons at the Large Hadron Collider Physical Review D - Particles, Fields, Gravitation and Cosmology, 91 (1). Article ID 016008. ISSN 1550-7998

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Official URL: https://journals.aps.org/prd/abstract/10.1103/Phys...

Related URL: http://dx.doi.org/10.1103/PhysRevD.91.016008

Abstract

A radion in a scenario with a warped extra dimension can be lighter than the Higgs boson, even if the Kaluza-Klein excitation modes of the graviton turn out to be in the multi-TeV region. The discovery of such a light radion would be a gateway to new physics. We show how the two-photon mode of decay can enable us to probe a radion in the mass range 60–110 GeV. We take into account the diphoton background, including fragmentation effects, and include cuts designed to suppress the background to the maximum possible extent. Our conclusion is that, with an integrated luminosity of 3000  fb-1 or less, the next run of the Large Hadron Collider should be able to detect a radion in this mass range, with a significance of 5 standard deviations or more.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:114522
Deposited On:05 Jun 2018 05:03
Last Modified:05 Jun 2018 05:03

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