ILC Workshop on Potential Experiments (ILCX2021)

Quest for Dark Matter at International Linear Collider

27 Oct 2021, 16:10

20m

Room #4 (Zoom Meeting ID: 840 3553 0145)

Oral presentation using Zoom Session H: BSM particle production H-2: BSM particle production

Speakers

Dr Atanu Guha (IISER Pune)Mr Saumyen Kundu (BITS Pilani, K.K. Birla Goa Campus)Dr Bhupal Dev (Washington University in St. Louis)Prof. Prasanta Kumar Das (BITS Pilani, K.K. Birla Goa Campus)

Description

Future accelerators like ILC or CLIC are with immense possibilities to improve our understanding of nature's fundamental building blocks and to discover new particles, e.g., WIMPs along with other physics phenomena. In scenarios where dark matter does not or feebly couple with quarks, we can consider the dominant couplings of them with charged leptons. We consider the pair production of fermion dark matter (freeze-out) at $1$TeV ILC using a class of higher-dimensional leptophilic operators. Depending upon the visible particles to identify the events, we probe mono-photon and mono-Z (with Z decays leptonically and hadronically) channels. We also employ the beam polarisation scheme of ILC and present the $3\sigma$ sensitivity at $1000$fb${}^{-1}$ in terms of the new physics (NP) scale $\mathrm{\Lambda }$, for the three channels. I will discuss here how these operators perform in the quest for dark matter signature and how constrained the parameter space stand considering different experimental bounds.

Presentation materials

ILCX2021.pdf