16-27 August 2021
SLAC
America/Los_Angeles timezone

Dark matter, muon anomalous magnetic moment, and the XENON1T excess

Not scheduled
20m
ZOOM videoconf (SLAC)

ZOOM videoconf

SLAC

Speaker

Mr Suvam Maharana (University of Delhi)

Description

Recently, the XENON1T detector observed an excess in its electronic recoil events in the low-energy region $\sim 1-5$ keV. We explore a possible dark matter (DM) explanation of the excess by invoking a simple extension of one real and two complex scalar fields comprising the dark sector beyond the Standard Model (SM). The light real scalar, while acting as a mediator between the SM sector and the dark sector, contributes to the magnetic moment of the muon as well. In this study we identify the region of the extended parameter space which simultaneously explains the long-standing muon $(g-2)$ anomaly, the requisite relic abundance of dark matter as well as the XENON1T excess via inelastic down-scattering of the dark scalar, while satisfying all relevant experimental, astrophysical and cosmological constraints.

Primary author

Mr Suvam Maharana (University of Delhi)

Co-authors

Prof. Debajyoti Choudhury (University of Delhi) Ms Vandana Sahdev (University of Delhi) Dr Divya Sachdeva (Indian Institute of Science Education and Research Pune)

Presentation Materials