Identifying a Higgsino-like NLSP in the context of a keV-scale gravitino LSP

Juhi Dutta, Biswarup Mukhopadhyaya, Santosh Kumar Rai

The presence of a Higgsino-like neutralino next-to-lightest sparticle (NLSP) and a keV scale gravitino ($\tilde{G}$) LSP opens up new decay modes of the NLSP, mainly to a Higgs…