Collider signatures of coannihilating dark matter in light of the B-physics anomalies

Abstract Motivated by UV explanations of the B-physics anomalies, we study a dark sector containing a Majorana dark matter candidate and a coloured coannihilation partner, connected to the Standard Model predominantly via a U 1 vector leptoquark. A TeV scale U 1 leptoquark, which couples mostly to t...

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Autores principales:	Michael J. Baker, Darius A. Faroughy, Sokratis Trifinopoulos
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Beyond Standard Model Cosmology of Theories beyond the SM Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/957e2667724e40a98368d8ca24e83c0e
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spelling	oai:doaj.org-article:957e2667724e40a98368d8ca24e83c0e2021-11-14T12:40:46ZCollider signatures of coannihilating dark matter in light of the B-physics anomalies10.1007/JHEP11(2021)0841029-8479https://doaj.org/article/957e2667724e40a98368d8ca24e83c0e2021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)084https://doaj.org/toc/1029-8479Abstract Motivated by UV explanations of the B-physics anomalies, we study a dark sector containing a Majorana dark matter candidate and a coloured coannihilation partner, connected to the Standard Model predominantly via a U 1 vector leptoquark. A TeV scale U 1 leptoquark, which couples mostly to third generation fermions, is the only successful single-mediator description of the B-physics anomalies. After calculating the dark matter relic surface, we focus on the most promising experimental avenue: LHC searches for the coloured coannihilation partner. We find that the coloured partner hadronizes and forms meson-like bound states leading to resonant signatures at colliders reminiscent of the quarkonia decay modes in the Standard Model. By recasting existing dilepton and monojet searches we exclude coannihilation partner masses less than 280 GeV and 400 GeV, respectively. Since other existing collider searches do not significantly probe the parameter space, we propose a new dedicated search strategy for pair production of the coloured partner decaying into bbττ final states and dark matter particles. This search is expected to probe the model up to dark matter masses around 600 GeV with current luminosity.Michael J. BakerDarius A. FaroughySokratis TrifinopoulosSpringerOpenarticleBeyond Standard ModelCosmology of Theories beyond the SMNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-32 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Beyond Standard Model Cosmology of Theories beyond the SM Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Beyond Standard Model Cosmology of Theories beyond the SM Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Michael J. Baker Darius A. Faroughy Sokratis Trifinopoulos Collider signatures of coannihilating dark matter in light of the B-physics anomalies
description	Abstract Motivated by UV explanations of the B-physics anomalies, we study a dark sector containing a Majorana dark matter candidate and a coloured coannihilation partner, connected to the Standard Model predominantly via a U 1 vector leptoquark. A TeV scale U 1 leptoquark, which couples mostly to third generation fermions, is the only successful single-mediator description of the B-physics anomalies. After calculating the dark matter relic surface, we focus on the most promising experimental avenue: LHC searches for the coloured coannihilation partner. We find that the coloured partner hadronizes and forms meson-like bound states leading to resonant signatures at colliders reminiscent of the quarkonia decay modes in the Standard Model. By recasting existing dilepton and monojet searches we exclude coannihilation partner masses less than 280 GeV and 400 GeV, respectively. Since other existing collider searches do not significantly probe the parameter space, we propose a new dedicated search strategy for pair production of the coloured partner decaying into bbττ final states and dark matter particles. This search is expected to probe the model up to dark matter masses around 600 GeV with current luminosity.
format	article
author	Michael J. Baker Darius A. Faroughy Sokratis Trifinopoulos
author_facet	Michael J. Baker Darius A. Faroughy Sokratis Trifinopoulos
author_sort	Michael J. Baker
title	Collider signatures of coannihilating dark matter in light of the B-physics anomalies
title_short	Collider signatures of coannihilating dark matter in light of the B-physics anomalies
title_full	Collider signatures of coannihilating dark matter in light of the B-physics anomalies
title_fullStr	Collider signatures of coannihilating dark matter in light of the B-physics anomalies
title_full_unstemmed	Collider signatures of coannihilating dark matter in light of the B-physics anomalies
title_sort	collider signatures of coannihilating dark matter in light of the b-physics anomalies
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/957e2667724e40a98368d8ca24e83c0e
work_keys_str_mv	AT michaeljbaker collidersignaturesofcoannihilatingdarkmatterinlightofthebphysicsanomalies AT dariusafaroughy collidersignaturesofcoannihilatingdarkmatterinlightofthebphysicsanomalies AT sokratistrifinopoulos collidersignaturesofcoannihilatingdarkmatterinlightofthebphysicsanomalies
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Collider signatures of coannihilating dark matter in light of the B-physics anomalies

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