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Model independent constraints on charges of new particles

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Title
Model independent constraints on charges of new particles
Author(s)
Dongjin Chway; Radovan Dermíšek; Tae Hyun Jung; Hyung Do Kim
Publication Date
2017-06
Journal
Physical Review d, v.95, no.11, pp.115004
Publisher
AMER PHYSICAL SOC
Abstract
Any particle that is charged under SU(3)C and U(1)EM can mediate the gg→γγ process through loops. Near the threshold for the new particle pair production, gauge boson exchanges necessitate the resummation of ladder diagrams. We discuss the leading log order matching of the one-loop result with the nonrelativistic effective theory resummed result. We show how the diphoton invariant mass spectrum varies depending on decay width, color representation, and electric charge of the new particle. The exclusion limits on the product of SU(3)C and U(1)EM charges of the new scalar or fermion particle are obtained from current LHC data. © 2017 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/4086
DOI
10.1103/PhysRevD.95.115004
ISSN
2470-0010
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > 1. Journal Papers (저널논문)
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