Direct neutralino searches in the NMSSM with gravitino LSP in the degenerate scenario

Дата и время публикации : 2011-02-01T15:48:58Z

Авторы публикации и институты :
Gabriela Barenboim
Grigoris Panotopoulos

Ссылка на журнал-издание: JHEP 1108:027,2011
Коментарии к cтатье: 1+14 pages, two tables, six figures
Первичная категория: hep-ph

Все категории : hep-ph, astro-ph.CO

Краткий обзор статьи: In the present work a two-component dark matter model is studied adopting the degenerate scenario in the R-parity conserving NMSSM. The gravitino LSP and the neutralino NLSP are extremely degenerate in mass, avoiding the BBN bounds and obtaining a high reheating temperature for thermal leptogenesis. In this model both gravitino (absolutely stable) and neutralino (quasi-stable) contribute to dark matter, and direct detection searches for neutralino are discussed. Points that survive all the constraints correspond to a singlino-like neutralino.

Category: Physics