Scalar dark matter in an extra dimension inspired model

14th International Conference on Topics in Astroparticle and Underground Physics

物理学;天文学

Lineros, Roberto^1 ; Dos Santos, Fabio Pereira^2,3

Instituto de Física Corpuscular, CSIC/U., Valencia, Spain^1

Centro Federal de Educaão Tecnológica Celso Suckow da Fonseca, Petró polis, RJ, Brazil^2

Departamento de Física, Pontifícia Universidade Católica Do Rio de Janeiro, Rio de Janeiro, RJ, Brazil^3

关键词: Dark matter;    Dark matter searches;    Direct detection;    Extra dimensions;    Mass spectra;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/718/4/042043/pdf
DOI  :  10.1088/1742-6596/718/4/042043

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

In this work we consider a singlet scalar propagating in a flat large extra dimension. The first Kaluza-Klein mode associated to this singlet scalar will be a viable dark matter candidate. The tower of new particles enriches the calculation of the relic density due effect of coannihilation. For large mass splitting, the model converges to the predictions of the singlet dark matter model. For nearly degenerate mass spectrum, coannihilations increase the cross-sections used for direct and indirect dark matter searches. We investigate the impact of the Kaluza-Klein tower associated to singlet scalar for indirect and direct detection of dark matter.