CaltechAUTHORS
  A Caltech Library Service

Interactions of keV sterile neutrinos with matter

Ando, Shin’ichiro and Kusenko, Alexander (2010) Interactions of keV sterile neutrinos with matter. Physical Review D, 81 (11). Art. No. 113006 . ISSN 2470-0010. https://resolver.caltech.edu/CaltechAUTHORS:20100709-113928337

[img]
Preview
PDF - Published Version
See Usage Policy.

139Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20100709-113928337

Abstract

A sterile neutrino with mass of several keV is a well-motivated dark-matter candidate, and it can also explain the observed velocities of pulsars via anisotropic emission of sterile neutrinos from a cooling neutron star. We discuss the interactions of such relic particles with matter and comment on the prospects of future direct detection experiments. A relic sterile neutrino can interact, via sterile–active mixing, with matter fermions by means of electroweak currents, with the final state containing a relativistic active neutrino. The recoil momentum impacted onto a matter fermion is determined by the sterile neutrino mass and is enough to ionize atoms and flip the spins of nuclei. While this suggests a possibility of direct experimental detection, we calculate the rates and show that building a realistic detector of the required size would be a daunting challenge.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevD.81.113006 DOIUNSPECIFIED
http://prd.aps.org/abstract/PRD/v81/i11/e113006PublisherUNSPECIFIED
Additional Information:© 2010 The American Physical Society. Received 28 January 2010; published 18 June 2010. The work of S. A. was supported by Japan Society for Promotion of Science. The work of A. K. was supported by DOE Grant No. DE-FG03-91ER40662 and NASA ATFP Grant No. NNX08AL48G.
Funders:
Funding AgencyGrant Number
Japan Society for Promotion of ScienceUNSPECIFIED
Department of Energy (DOE)DE-FG03-91ER40662
NASA Astrophysics Theory and Fundamental Physics program (ATFP)NNX08AL48G
Issue or Number:11
Classification Code:PACS: 14.60.St, 95.35.+d
Record Number:CaltechAUTHORS:20100709-113928337
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20100709-113928337
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:18968
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:09 Jul 2010 20:35
Last Modified:03 Oct 2019 01:50

Repository Staff Only: item control page