Hadronic uncertainties and isospin violation in supersymmetric dark matter models

Tunstall, Lewis; Crivellin, Andreas; Hoferichter, Martin; Procura, Massimiliano (2016). Hadronic uncertainties and isospin violation in supersymmetric dark matter models. PoS - proceedings of science, CD15, 088. Scuola Internazionale Superiore di Studi Avanzati SISSA

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Current limits from dark matter direct-detection experiments place a powerful constraint on the parameter space of the Minimal Supersymmetric Standard Model (MSSM). The interpretation of these limits, however, depends sensitively on the hadronic uncertainties associated with the scattering of supersymmetric dark matter particles off nucleons. For spin-independent scattering, we review the role of 2- and 3-flavour chiral perturbation theory in the determination of these hadronic uncertainties, and quantify the amount of isospin violation within several simplified versions of the MSSM. In each case, we identify parameter-space configurations that produce (almost) vanishing cross sections and examine the complementarity of constraints due to direct- detection, flavour, and collider experiments. In the vicinity of these so-called blind spots, we find that isospin violation may be much larger than typically expected in the MSSM.

Item Type:

Conference or Workshop Item (Paper)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Tunstall, Lewis; Crivellin, Andreas; Hoferichter, Martin and Procura, Massimiliano

Subjects:

500 Science > 530 Physics

ISSN:

1824-8039

Publisher:

Scuola Internazionale Superiore di Studi Avanzati SISSA

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

31 Aug 2016 08:36

Last Modified:

31 Aug 2016 08:36

BORIS DOI:

10.7892/boris.86293

URI:

https://boris.unibe.ch/id/eprint/86293

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