Toroidal dipole moment of the LSP in the cMSSM

18th International Symposium on Particles Strings and Cosmology

Cabral-Rosetti, L.G.^1 ; Mondragón, M.^2 ; Pérez, E. A. Reyes^2

Unidad de Ciencias Básicas, Departamento de Posgrado, Centro Interdisciplinario de Investigacion y Docencia en Educacion Tecnica(CIIDET), Av. Universidad 282 Pte., C.P 76000, Santiago-de Querétaro, Qro., Mexico^1

Instituto de Física, Universidad Nacional Autónoma de México, Apdo. Postal 20-364, México 01000, D.F., Mexico^2

关键词: Dark matter;    Electromagnetic properties;    Minimal supersymmetric standard models;    Neutralinos;    Parameter spaces;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/485/1/012019/pdf
DOI  :  10.1088/1742-6596/485/1/012019

来源: IOP

【 摘 要 】

We study the toroidal dipole moment of the lightest neutralino in the constrained Minimal Supersymmetric Standard Model. The toroidal dipole moment is the only electromagnetic property of the neutralino. Since the neutralino is the LSP in many versions of the MSSM and therefore a candidate for dark matter, its characterization through its electromagnetic properties is important both for particle physics and for cosmology. We perform a scan in the parameter space of the cMSSM and find that the toroidal dipole moment is different from zero, albeit very small, in all the parameter space, and reaches a value around 10-3GeV-2in a particular region of the parameter space, well below experimental bounds.