Multi-scalar signature of self-interacting dark matter in the NMSSM and beyond

A bstract This work studies the self-interacting dark matter (SIDM) scenario in the general NMSSM and beyond, where the dark matter is a Majorana fermion and the force mediator is a scalar boson. An improved analytical expression for the dark matter (DM) self-interacting cross section which takes in...

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Bibliographic Details
Published inThe journal of high energy physics Vol. 2021; no. 9; pp. 1 - 26
Main Authors Li, Jinmian, Pei, Junle, Zhang, Cong
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 22.09.2021
Springer Nature B.V
SpringerOpen
Subjects
Classical and Quantum Gravitation
Couplings
Dark matter
Elementary Particles
Fermions
High energy physics
Monte Carlo simulation
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
String Theory
Supersymmetry Phenomenology
Supersymmetry Phenomenology
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Summary:A bstract This work studies the self-interacting dark matter (SIDM) scenario in the general NMSSM and beyond, where the dark matter is a Majorana fermion and the force mediator is a scalar boson. An improved analytical expression for the dark matter (DM) self-interacting cross section which takes into account the Born level effects is proposed. Due to the large couplings and light mediator in SIDM scenario, the DM/mediator will go through multiple branchings if they are produced with high energy. Based on the Monte Carlo simulation of the showers in the DM sector, we obtain the multiplicities and the spectra of the DM/mediator from the Higgsino production and decay at the LHC for our benchmark points.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP09(2021)151