Double Higgs boson production and decay in Randall-Sundrum model at hadron colliders

We investigate the double Higgs production and decay at the 14 TeV LHC and 33 TeV HE-LHC in both the standard model (SM) and Randall-Sundrum (RS) model. In our calculation we consider reasonably only the contribution of the lightest two Kaluza-Klein (KK) gravitons. We present the integrated cross se...

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Bibliographic Details
Published in:Physical review. D, Particles, fields, gravitation, and cosmology Particles, fields, gravitation, and cosmology, 2015-12, Vol.92 (11), Article 116005
Main Authors: Zhang, Wen-Juan, Ma, Wen-Gan, Zhang, Ren-You, Li, Xiao-Zhou, Guo, Lei, Chen, Chong
Format: Article
Language:English
Subjects:
Cosmology
Cross sections
Decomposition
Gravitons
Hadrons
Higgs bosons
Kinematics
Mathematical models
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Summary:We investigate the double Higgs production and decay at the 14 TeV LHC and 33 TeV HE-LHC in both the standard model (SM) and Randall-Sundrum (RS) model. In our calculation we consider reasonably only the contribution of the lightest two Kaluza-Klein (KK) gravitons. We present the integrated cross sections and some kinematic distributions in both models. Our results show that the RS effect in the vicinities of M sub()HH~ M sub(1), M sub(2) (the masses of the lightest two KK gravitons) or in the central Higgs rapidity region is quite significant, and can be extracted from the heavy SM background by imposing proper kinematic cuts on final particles. We also study the dependence of the cross section on the RS model parameters, the first KK graviton mass M sub(1), and the effective coupling c sub(0), and find that the RS effect is reduced obviously with the increment of M sub(1) or decrement of c sub(0).
ISSN:1550-7998
1550-2368
DOI:10.1103/PhysRevD.92.116005