Dark Matter Detection with Polarized Detectors

Autor:	Chiang, Chi-Ting, Kamionkowski, Marc, Krnjaic, Gordan Z.
Rok vydání:	2012
Předmět:	Astrophysics - Cosmology and Extragalactic Astrophysics High Energy Physics - Experiment High Energy Physics - Phenomenology
Zdroj:	Physics of the Dark Universe 1 (2012), pp. 109-115
Druh dokumentu:	Working Paper
DOI:	10.1016/j.dark.2012.10.003
Popis:	We consider the prospects to use polarized dark-matter detectors to discriminate between various dark-matter models. If WIMPs are fermions and participate in parity-violating interactions with ordinary matter, then the recoil-direction and recoil-energy distributions of nuclei in detectors will depend on the orientation of the initial nuclear spin with respect to the velocity of the detector through the Galactic halo. If, however, WIMPS are scalars, the only possible polarization-dependent interactions are extremely velocity-suppressed and, therefore, unobservable. Since the amplitude of this polarization modulation is fixed by the detector speed through the halo, in units of the speed of light, exposures several times larger than those of current experiments will be required to be probe this effect. Comment: 4 pages, 5 figures, Corrected some errors and clarified some issues. Some new references added
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1202.1807 Zobrazit plný text záznamu View this record from Arxiv