CaltechAUTHORS
  A Caltech Library Service

Energetic neutrinos from heavy-neutralino annihilation in the Sun

Kamionkowski, Marc (1991) Energetic neutrinos from heavy-neutralino annihilation in the Sun. Physical Review D, 44 (10). pp. 3021-3042. ISSN 0556-2821. http://resolver.caltech.edu/CaltechAUTHORS:KAMprd91b

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

4Mb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:KAMprd91b

Abstract

Neutralinos may be captured in the Sun and annihilate therein producing high-energy neutrinos. Present limits on the flux of such neutrinos from underground detectors such as Irvine-Michigan-Brookhaven (IMB) and Kamiokande II may be used to rule out certain supersymmetric dark-matter candidates, while in many other supersymmetric models the rates are large enough that if neutralinos do reside in the galactic halo, observation of a neutrino signal may be possible in the near future. Neutralinos that are either nearly pure Higgsino or a Higgsino-gaugino combination are generally captured in the Sun by a scalar interaction with nuclei in which a virtual lightest Higgs boson is exchanged. If the squark mass is not much greater than the neutralino mass then capture of neutralinos that are primarily gaugino occurs predominantly by spin-dependent scattering off hydrogen in the Sun. Although only neutrinos from annihilation in the Sun are considered here, the neutrino signal from weakly interacting massive particle annihilation in the Earth should be of comparable strength. Detection rates for mixedstate neutralinos are generally higher than those for Higgsinos or gauginos.


Item Type:Article
ORCID:
AuthorORCID
Kamionkowski, Marc0000-0001-7018-2055
Additional Information:© 1991 The American Physical Society Received 24 April 1991 It is a pleasure to thank David Seckel, Kim Griest, Michael Turner, Francis Halzen, Tim Seltzer, Andrew Gould, and Stuart Mufson for useful discussions. This research was supported in part by the DOE (at Chicago and at Fermilab), by NASA (Grant No. NGW--1340 at Fermilab), and by the NASA Graduate Student Researchers Program.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)UNSPECIFIED
NASANGW-1340
NASA Graduate Student Research FellowshipUNSPECIFIED
Record Number:CaltechAUTHORS:KAMprd91b
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:KAMprd91b
Alternative URL:http://dx.doi.org/10.1103/PhysRevD.44.3021
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3474
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:08 Jun 2006
Last Modified:10 Dec 2016 23:33

Repository Staff Only: item control page