Abstract
We present a systematic cosmological study of a universe in which the visible sector is coupled, albeit very weakly, to a hidden sector comprised of its own set of particles and interactions. Assuming that dark matter (DM) resides in the hidden sector and is charged under a stabilizing symmetry shared by both sectors, we determine all possible origins of weak-scale DM allowed within this broad framework. We show that DM can arise only through a handful of mechanisms, lending particular focus to Freeze-Out and Decay and Freeze-In, as well as their variations involving late time re-annihilations of DM and DM particle anti-particle asymmetries. Much like standard Freeze-Out, where the abundance of DM depends only on the annihilation cross-section of the DM particle, these mechanisms depend only on a very small subset of physical parameters, many of which may be measured directly at the LHC. In particular, we show that each DM production mechanism is associated with a distinctive window in lifetimes and cross-sections for particles which may be produced in the near future. We evaluate prospects for employing the LHC to definitively reconstruct the origin of DM in a companion paper.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
E.W. Kolb and M.S. Turner, The Early Universe, Addison-Wesley, Redwood U.S.A. (1988) [SPIRES].
J.L. Feng, A. Rajaraman and F. Takayama, SuperW IMP Dark Matter Signals from the Early Universe, Phys. Rev. D 68 (2003) 063504 [hep-ph/0306024] [SPIRES].
J.L. Feng, S.-f. Su and F. Takayama, SuperWIMP gravitino dark matter from slepton and sneutrino decays, Phys. Rev. D 70 (2004) 063514 [hep-ph/0404198] [SPIRES].
L.J. Hall, K. Jedamzik, J. March-Russell and S.M. West, Freeze-In Production of FIMP Dark Matter, JHEP 03 (2010) 080 [arXiv:0911.1120] [SPIRES].
T. Asaka, K. Ishiwata and T. Moroi, Right-handed sneutrino as cold dark matter, Phys. Rev. D 73 (2006) 051301 [hep-ph/0512118] [SPIRES].
J.L. Feng, H. Tu and H.-B. Yu, Thermal Relics in Hidden Sectors, JCAP 10 (2008) 043 [arXiv:0808.2318] [SPIRES].
D.E. Kaplan, M.A. Luty and K.M. Zurek, Asymmetric Dark Matter, Phys. Rev. D 79 (2009) 115016 [arXiv:0901.4117] [SPIRES].
Y. Cai, M.A. Luty and D.E. Kaplan, Leptonic Indirect Detection Signals from Strongly Interacting Asymmetric Dark Matter, arXiv:0909.5499 [SPIRES].
C. Cheung, G. Elor, L.J. Hall and P. Kumar, Origins of Hidden Sector Dark Matter II: Collider Physics, arXiv:1010.0024 [SPIRES].
Particle Data Group collaboration, C. Amsler et al., Review of particle physics, Phys. Lett. B 667 (2008) 1 [SPIRES].
T. Asaka and T. Yanagida, Solving the gravitino problem by axino, Phys. Lett. B 494 (2000) 297 [hep-ph/0006211] [SPIRES].
C. Cheung, Y. Nomura and J. Thaler, Goldstini, JHEP 03 (2010) 073 [arXiv:1002.1967] [SPIRES].
C. Cheung, J. Mardon, Y. Nomura and J. Thaler, A Definitive Signal of Multiple Supersymmetry Breaking, JHEP 07 (2010) 035 [arXiv:1004.4637] [SPIRES].
T. Moroi, H. Murayama and M. Yamaguchi, Cosmological constraints on the light stable gravitino, Phys. Lett. B 303 (1993) 289 [SPIRES].
L.J. Hall, J. March-Russell and S.M. West, A Unified Theory of Matter Genesis: Asymmetric Freeze-In, arXiv:1010.0245 [SPIRES].
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (https://creativecommons.org/licenses/by-nc/2.0), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
About this article
Cite this article
Cheung, C., Elor, G., Hall, L.J. et al. Origins of hidden sector dark matter I: cosmology. J. High Energ. Phys. 2011, 42 (2011). https://doi.org/10.1007/JHEP03(2011)042
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/JHEP03(2011)042