TY - JOUR
T1 - Sommerfeld enhancement from unparticle exchange for dark matter annihilation
AU - Chen, Chuan Hung
AU - Kim, C. S.
PY - 2010/4/12
Y1 - 2010/4/12
N2 - We investigate the implication of unparticle exchange for the possible Sommerfeld enhancement in dark matter annihilation process. Assuming the unparticle exchange during WIMP collision, we solve the Schrödinger equation for the effective potential, and find that the Sommerfeld enhancement factor is dictated by the scale dimension of unparticle as 1 / v3 - 2 dU. Numerically the Sommerfeld enhancement could be O (10 - 103).
AB - We investigate the implication of unparticle exchange for the possible Sommerfeld enhancement in dark matter annihilation process. Assuming the unparticle exchange during WIMP collision, we solve the Schrödinger equation for the effective potential, and find that the Sommerfeld enhancement factor is dictated by the scale dimension of unparticle as 1 / v3 - 2 dU. Numerically the Sommerfeld enhancement could be O (10 - 103).
UR - http://www.scopus.com/inward/record.url?scp=77949912301&partnerID=8YFLogxK
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U2 - 10.1016/j.physletb.2010.03.054
DO - 10.1016/j.physletb.2010.03.054
M3 - Article
AN - SCOPUS:77949912301
VL - 687
SP - 232
EP - 235
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 - 2-3
ER -