TY - JOUR
T1 - Decaying superheavy dark matter and subgalactic structure of the Universe
AU - Chou, Chung Hsien
AU - Ng, Kin Wang
N1 - Funding Information:
The work of K.W.N. (C.H.C.) was supported in part by the National Science Council, Taiwan, ROC, under the Grant NSC91-2112-M-001-026 (NSC91-2811-M-001-048).
PY - 2004/7/29
Y1 - 2004/7/29
N2 - The collisionless cold dark matter (CCDM) model predicts overly dense cores in dark matter halos and overly abundant subhalos. We show that the idea that CDM are decaying superheavy particles which produce ultra-high energy cosmic rays with energies beyond the Greisen-Zatsepin-Kuzmin cutoff may simultaneously solve the problem of subgalactic structure formation in CCDM model. In particular, the Kuzmin-Rubakov's decaying superheavy CDM model may give an explanation to the smallness of the cosmological constant and a new thought to the CDM experimental search.
AB - The collisionless cold dark matter (CCDM) model predicts overly dense cores in dark matter halos and overly abundant subhalos. We show that the idea that CDM are decaying superheavy particles which produce ultra-high energy cosmic rays with energies beyond the Greisen-Zatsepin-Kuzmin cutoff may simultaneously solve the problem of subgalactic structure formation in CCDM model. In particular, the Kuzmin-Rubakov's decaying superheavy CDM model may give an explanation to the smallness of the cosmological constant and a new thought to the CDM experimental search.
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U2 - 10.1016/j.physletb.2004.04.082
DO - 10.1016/j.physletb.2004.04.082
M3 - Article
AN - SCOPUS:3042613358
VL - 594
SP - 1
EP - 7
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 - 1-2
ER -