Neutralino Dark Matter with Inert Higgsinos and Singlinos

Details Neutralino Dark Matter with Inert Higgsinos and Singlinos Neutralino Dark Matter with Inert Higgsinos and Singlinos

2009-05-16

arxiv.org/abs/0905.2696v1

JHEP 0908:088,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

29 pages, 7 figures

Scientific paper

10.1088/1126-6708/2009/08/088

We discuss neutralino dark matter arising from supersymmetric models with extra inert Higgsinos and singlinos, where inert means that their scalar partners do not get vacuum expectation values. As an example, we consider the extended neutralino sector of the E$_6$SSM, which predicts three families of Higgs doublet pairs, plus three singlets, plus a $Z'$, together with their fermionic superpartners. We show that the two families of inert doublet Higgsinos and singlinos predicted by this model provide an almost decoupled neutralino sector with a naturally light LSP which can account for the cold dark matter relic abundance independently of the rest of the model, providing that the ratio of the two usual Higgs doublets satisfies tan beta < 2.

Affiliated with

Also associated with

No associations

Rating

Neutralino Dark Matter with Inert Higgsinos and Singlinos does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Neutralino Dark Matter with Inert Higgsinos and Singlinos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Neutralino Dark Matter with Inert Higgsinos and Singlinos will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-503950