Can tonne-scale direct detection experiments discover nuclear dark matter?
Can tonne-scale direct detection experiments discover nuclear dark matter?
复制标题
吨级直接探测实验能否发现核暗物质?
DOI:
10.1088/1475-7516/2017/10/035
复制
发表时间:
2017
影响因子:
6.4
通讯作者:
Butcher A
中科院分区:
文献类型:
--
作者:
Butcher A
Models of nuclear dark matter propose that the dark sector contains large composite states consisting of dark nucleons in analogy to Standard Model nuclei. We examine the direct detection phenomenology of a particular class of nuclear dark matter model at the current generation of tonne-scale liquid noble experiments, in particular DEAP-3600 and XENON1T. In our chosen nuclear dark matter scenario distinctive features arise in the recoil energy spectra due to the non-point-like nature of the composite dark matter state. We calculate the number of events required to distinguish these spectra from those of a standard point-like WIMP state with a decaying exponential recoil spectrum. In the most favourable regions of nuclear dark matter parameter space, we find that a few tens of events are needed to distinguish nuclear dark matter from WIMPs at the 3 σ level in a single experiment. Given the total exposure time of DEAP-3600 and XENON1T we find that at best a 2 σ distinction is possible by these experiments individually, while 3 σ sensitivity is reached for a range of parameters by the combination of the two experiments. We show that future upgrades of these experiments have potential to distinguish a large range of nuclear dark matter models from that of a WIMP at greater than 3 σ.
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影响因子:
5.4
作者:
Hardy E
通讯作者:
Hardy E
影响因子:
6.4
作者:
John F. Cherry;M. Frandsen;I. Shoemaker
通讯作者:
I. Shoemaker
DOI:
10.1103/physrevd.52.6607
发表时间:
1995
期刊:
Physical review. D, Particles and fields
影响因子:
--
作者:
Z. Berezhiani;R. Mohapatra
通讯作者:
R. Mohapatra
影响因子:
5.4
作者:
Edward Hardy;R. Lasenby;J. March-Russell;S. West
通讯作者:
Edward Hardy;R. Lasenby;J. March-Russell;S. West
影响因子:
4.4
作者:
G. Krnjaic;K. Sigurdson
通讯作者:
G. Krnjaic;K. Sigurdson