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Electroweak corrections in a pseudo Nambu-Goldstone Dark Matter model revisited

Glaus, Seraina; Mühlleitner, Margarete; Müller, Jonas; Patel, Shruti; Römer, Tizian; Santos, Rui

Abstract:
Having so far only indirect evidence for the existence of Dark Matter a plethora of experiments aims at direct detection of Dark Matter through the scattering of Dark Matter particles off atomic nuclei. For the correct interpretation and identification of the underlying nature of the Dark Matter constituents higher-order corrections to the cross section of Dark Matter-nucleon scattering are important, in particular in models where the tree-level cross section is negligibly small. In this work we revisit the electroweak corrections to the dark matter-nucleon scattering cross section in a model with a pseudo Nambu-Goldstone boson as the Dark Matter candidate. Two calculations that already exist in the literature, apply different approaches resulting in different final results for the cross section in some regions of the parameter space leading us to redo the calculation and analyse the two approaches to clarify the situation. We furthermore update the experimental constraints and examine the regions of the parameter space where the cross section is above the neutrino floor but which can only be probed in the far future.

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Verlagsausgabe §
DOI: 10.5445/IR/1000129586
Veröffentlicht am 10.02.2021
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Kernphysik (IKP)
Institut für Theoretische Physik (ITP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 12.2020
Sprache Englisch
Identifikator ISSN: 1029-8479
KITopen-ID: 1000129586
HGF-Programm 51.01.01 (POF III, LK 01) Teilchenphysik
Erschienen in Journal of high energy physics
Verlag Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Band 2020
Heft 12
Seiten Art.-Nr.:34
Vorab online veröffentlicht am 04.12.2020
Nachgewiesen in Scopus
Web of Science
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