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Predicting the capture rate in the Sun from a direct detection signal independently of the astrophysics
KTH, Skolan för teknikvetenskap (SCI), Teoretisk fysik.
2016 (engelsk)Inngår i: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 718, nr 4, artikkel-id 42027Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The goal of the works on which this talk is based is to relate a direct detection signal with neutrino limits from the Sun independently of the astrophysics. In order to achieve this we derive a halo-independent lower bound on the dark matter capture rate in the Sun from a direct detection signal, with which one can set upper limits on the branching ratios into different channels from the absence of a high-energy neutrino flux in neutrino observatories. We also extend this bound to the case of inelastic scattering, both endothermic and exothermic. From two inelastic signals we show how the dark matter mass, the mass difference of the states and the couplings to neutrons and protons can be obtained. Furthermore, one can also pin down the exothermic/endothermic nature of the scattering, and therefore a precise lower bound on the solar capture rate is predicted. We also discuss isospin violation and uncertainties due to form factors.

sted, utgiver, år, opplag, sider
Institute of Physics Publishing (IOPP), 2016. Vol. 718, nr 4, artikkel-id 42027
Emneord [en]
Astrophysics, Elementary particles, Galaxies, Inelastic scattering, Neutrons, Particle detectors, Branching ratio, Capture rate, Direct detection, Form factors, High energy neutrinos, Isospin violation, Mass difference, Upper limits, Signal detection
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-197231DOI: 10.1088/1742-6596/718/4/042027ISI: 000391490200053Scopus ID: 2-s2.0-84981262576OAI: oai:DiVA.org:kth-197231DiVA, id: diva2:1052007
Konferanse
XIV INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS 7 September 2015 through 11 September 2015
Merknad

QC 20161205

Tilgjengelig fra: 2016-12-05 Laget: 2016-11-30 Sist oppdatert: 2017-11-29bibliografisk kontrollert

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