Projected sensitivities of the LUX-ZEPLIN experiment to new physics via low-energy electron recoils
Projected sensitivities of the LUX-ZEPLIN experiment to new physics via low-energy electron recoils
复制标题
DOI：
10.1103/physrevd.104.092009
复制
发表时间：
2021-11-23
影响因子：
5
通讯作者：
Zarzhitsky, P.
中科院分区：
文献类型：
--
作者：
Akerib, D. S.;Al Musalhi, A. K.;Zarzhitsky, P.
LUX - ZEPLIN是一种暗物质探测器，预计其对于通过核反冲相互作用的弱相互作用大质量粒子能获得世界领先的灵敏度，它具有约7吨的氙靶质量。本文给出了对几种互补的电子反冲信号类型的低能信号的灵敏度预测：1）有效中微子磁矩，以及2）有效中微子毫电荷，两者均针对质子 - 质子链太阳中微子，3）太阳产生的轴子通量，4）构成银河系暗物质的类轴子粒子，5）隐光子，6）镜像暗物质，7）亲轻子暗物质。在每种情况下都有望达到世界领先的灵敏度，这是由于5.6吨×1000天的大曝光量以及在<100 keV能区预期较低的电子反冲本底率。自始至终都使用了一致的信号产生、背景模型和轮廓似然分析框架。
LUX-ZEPLIN is a dark matter detector expected to obtain world-leading sensitivity to weakly interacting massive particles interacting via nuclear recoils with a similar to 7-tonne xenon target mass. This paper presents sensitivity projections to several low-energy signals of the complementary electron recoil signal type: 1) an effective neutrino magnetic moment, and 2) an effective neutrino millicharge, both for pp-chain solar neutrinos, 3) an axion flux generated by the Sun, 4) axionlike particles forming the Galactic dark matter, 5) hidden photons, 6) mirror dark matter, and 7) leptophilic dark matter. World-leading sensitivities are expected in each case, a result of the large 5.6 t 1000 d exposure and low expected rate of electron-recoil backgrounds in the < 100 keV energy regime. A consistent signal generation, background model and profile-likelihood analysis framework is used throughout.