The effect of quark interactions on dark matter kinetic decoupling and the mass of the smallest dark halos

Update Item Information
Publication Type pre-print
School or College College of Science
Department Physics
Creator Gondolo, Paolo
Other Author Hisano, Junji; Kadota, Kenji
Title The effect of quark interactions on dark matter kinetic decoupling and the mass of the smallest dark halos
Date 2012-01-01
Description The kinetic decoupling of dark matter (DM) from the primordial plasma sets the size of the first and smallest DM halos. Studies of the DM kinetic decoupling have hitherto mostly neglected interactions between the DM and the quarks in the plasma. Here we illustrate their importance using two frameworks: a version of the minimal supersymmetric standard model and an effective field theory with effective DMquark interaction operators. We connect particle physics and astrophysics obtaining bounds on the smallest DM halo size from collider data and from direct DM search experiments. In the Minimal Supersymmetric Standard Model framework, adding DM-quark interactions to DM-lepton interactions more than doubles the smallest DM halo mass in a wide range of the supersymmetric parameter space.
Type Text
Publisher American Physical Society
Volume 86
Issue 8
First Page 083523-1
Last Page 083523-9
Dissertation Institution University of Utah
Language eng
Bibliographic Citation Gondolo, P., Hisano, J., & Kadota, K. (2012). The effect of quark interactions on dark matter kinetic decoupling and the mass of the smallest dark halos. Physical Review D - Particles, Fields, Gravitation and Cosmology, 86(8), 083523-1-083523-9.
Rights Management (c) American Physical Society http://dx.doi.org/10.1103/PhysRevD.86.083523.
Format Medium application/pdf
Format Extent 567,566 bytes
Identifier uspace,17956
ARK ark:/87278/s62r49db
Setname ir_uspace
ID 708197
Reference URL https://collections.lib.utah.edu/ark:/87278/s62r49db