TY - JOUR
T1 - Detectability of a subdominant density component of cold dark matter
AU - Duda, Gintaras
AU - Gelmini, Graciela
AU - Gondolo, Paolo
N1 - Funding Information:
G.D. and G.G. were supported in part by the US Department of Energy Grant No. DE-FG03-91ER40662, Task C. P.G. acknowledges that one of the points made in this Letter, namely, that in the MSSM some extreme low density neutralinos with –10 −5 might be detectable, was made in conversations with Joe Silk and Joakim Edsjö in March 1999.
PY - 2002/3/21
Y1 - 2002/3/21
N2 - Here we examine the detectability of collisionless dark matter candidates that may constitute not all but only a subdominant component of galactic cold dark matter. We show that direct WIMP searches would not be severely affected by the reduced density. In fact, the direct detection rates of neutralinos stay almost constant even if neutralinos constitute 1% of the halo dark matter. Only for lower densities do the rates decrease with density. Even neutralinos accounting for only 10-4 of the local dark halo density are within proposed future discovery limits. We comment also on axions and indirect WIMP searches.
AB - Here we examine the detectability of collisionless dark matter candidates that may constitute not all but only a subdominant component of galactic cold dark matter. We show that direct WIMP searches would not be severely affected by the reduced density. In fact, the direct detection rates of neutralinos stay almost constant even if neutralinos constitute 1% of the halo dark matter. Only for lower densities do the rates decrease with density. Even neutralinos accounting for only 10-4 of the local dark halo density are within proposed future discovery limits. We comment also on axions and indirect WIMP searches.
UR - http://www.scopus.com/inward/record.url?scp=0012293682&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0012293682&partnerID=8YFLogxK
U2 - 10.1016/S0370-2693(02)01266-2
DO - 10.1016/S0370-2693(02)01266-2
M3 - Article
AN - SCOPUS:0012293682
VL - 529
SP - 187
EP - 192
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 3-4
ER -