Dive deeper with SUBMARINE: SUB-Mev dArk matter diRect detectIon using bilayer grapheNE

Fuente: arXiv
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Auteurs principaux: Sherpa, Rinchen, Sarkar, Anuvab, Maity, Tarak Nath, Dutta, Paramita, Laha, Ranjan, Das, Anirban
Format: Preprint
Publié: 2026
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author Sherpa, Rinchen
Sarkar, Anuvab
Maity, Tarak Nath
Dutta, Paramita
Laha, Ranjan
Das, Anirban
author_facet Sherpa, Rinchen
Sarkar, Anuvab
Maity, Tarak Nath
Dutta, Paramita
Laha, Ranjan
Das, Anirban
contents Novel target materials with anisotropic response will play a key role in detecting low-mass dark matter in upcoming experiments. Bilayer graphene is one such material that has been proposed for the detection of sub-MeV mass dark matter particles via electronic excitations. In this work, we calculate scattering rate via a massive mediator in bilayer graphene. With an exposure as small as $\sim$ 0.5 mg-year, bilayer graphene can probe new regions of the parameter space. The anisotropic response function of bilayer graphene leads to a sidereal-day modulation in the scattering rate, depending on its orientation with respect to the Galactic dark matter wind. We find significant modulation in the scattering rate for sub-MeV mass dark matter, demonstrating bilayer graphene's promise for a future experiment. We hope that our work will motivate the community to investigate bilayer graphene as a novel target material, and that it may lead us to discover the particle nature of dark matter.
format Preprint
id arxiv_https___arxiv_org_abs_2604_21969
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Dive deeper with SUBMARINE: SUB-Mev dArk matter diRect detectIon using bilayer grapheNE
Sherpa, Rinchen
Sarkar, Anuvab
Maity, Tarak Nath
Dutta, Paramita
Laha, Ranjan
Das, Anirban
High Energy Physics - Phenomenology
Mesoscale and Nanoscale Physics
High Energy Physics - Experiment
Novel target materials with anisotropic response will play a key role in detecting low-mass dark matter in upcoming experiments. Bilayer graphene is one such material that has been proposed for the detection of sub-MeV mass dark matter particles via electronic excitations. In this work, we calculate scattering rate via a massive mediator in bilayer graphene. With an exposure as small as $\sim$ 0.5 mg-year, bilayer graphene can probe new regions of the parameter space. The anisotropic response function of bilayer graphene leads to a sidereal-day modulation in the scattering rate, depending on its orientation with respect to the Galactic dark matter wind. We find significant modulation in the scattering rate for sub-MeV mass dark matter, demonstrating bilayer graphene's promise for a future experiment. We hope that our work will motivate the community to investigate bilayer graphene as a novel target material, and that it may lead us to discover the particle nature of dark matter.
title Dive deeper with SUBMARINE: SUB-Mev dArk matter diRect detectIon using bilayer grapheNE
topic High Energy Physics - Phenomenology
Mesoscale and Nanoscale Physics
High Energy Physics - Experiment
url https://arxiv.org/abs/2604.21969