An exciting prospect: detecting inelastic transitions of xenon caused by dark matter

14th International Conference on Topics in Astroparticle and Underground Physics

物理学;天文学

McCabe, Christopher^1

GRAPPA Centre for Excellence, Institute for Theoretical Physics Amsterdam (ITFA), University of Amsterdam, Science Park 904, Netherlands^1

关键词: Dark matter;    De-excitations;    Direct detection;    Inelastic transitions;    Spin-dependent interactions;    Two phase;    Xenon isotopes;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/718/4/042038/pdf
DOI  :  10.1088/1742-6596/718/4/042038

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

Dark matter can scatter and excite the xenon isotopes129Xe and131Xe to a low-lying excitation in a direct detection experiment. This signature is distinct from the canonical elastic scattering signal because the inelastic signal also contains the energy deposited from the subsequent prompt de-excitation of the nucleus. A measurement of the elastic and inelastic signal will allow a single experiment to distinguish between a spin-independent and spin-dependent interaction. In this paper, I will discuss the prospects of detecting this inelastic signal with up-coming tonne-scale two-phase xenon direct detection experiments.