Limits on the luminance of dark matter from xenon recoil data

,; Ning, Xuyang; Abdukerim, Abdusalam; Bo, Zihao; Cui, Xiangyi; Chen, Wei; Chen, Xun; Cheng, Chen; Cheng, Zhaokan; Fan, Yingjie; Fang, Deqing; Fu, Changbo; Fu, Mengting; Geng, Lisheng; Giboni, Karl; Gu, Linhui; Guo, Xuyuan; Han, Chencheng; Han, Ke; He, Changda; He, Jinrong; Huang, Di; Huang, Yanlin; Huang, Junting; Huang, Zhou; Hou, Ruquan; Hou, Yu; Ji, Xiangdong; Ju, Yonglin; Li, Chenxiang; Li, Jiafu; Li, Mingchuan; Li, Shuaijie; Li, Tao; Lin, Qing; Liu, Jianglai; Lu, Congcong; Lu, Xiaoying; Luo, Lingyin; Luo, Yunyang; Ma, Wenbo; Ma, Yugang; Mao, Yajun; Meng, Yue; Qi, Ningchun; Qian, Zhicheng; Ren, Xiangxiang; Shaheed, Nasir; Shang, Xiaofeng; Shao, Xiyuan; Shen, Guofang; Si, Lin; Sun, Wenliang; Tan, Andi; Tao, Yi; Wang, Anqing; Wang, Meng; Wang, Qiuhong; Wang, Shaobo; Wang, Siguang; Wang, Wei; Wang, Xiuli; Wang, Zhou; Wei, Yuehuan; Wu, Mengmeng; Wu, Weihao; Xia, Jingkai; Xiao, Mengjiao; Xiao, Xiang; Xie, Pengwei; Yan, Binbin; Yan, Xiyu; Yang, Jijun; Yang, Yong; Yao, Yukun; Yu, Chunxu; Yuan, Ying; Yuan, Zhe; Zeng, Xinning; Zhang, Dan; Zhang, Minzhen; Zhang, Peng; Zhang, Shibo; Zhang, Shu; Zhang, Tao; Zhang, Wei; Zhang, Yang; Zhang, Yingxin; Zhang, Yuanyuan; Zhao, Li; Zheng, Qibin; Zhou, Jifang; Zhou, Ning; Zhou, Xiaopeng; Zhou, Yong; Zhou, Yubo

doi:10.1038/s41586-023-05982-0

Cited by 18 publications

(9 citation statements)

References 42 publications

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“…The method MP integrates the probability density over nuisance parameters by marginalizing posterior densities, commonly applied in cosmology, particularly in the ΛCDM context. On the other hand, the PL method is preferred for null signal searches due to large volume effects and prior dependencies in unconstrained likelihoods, and it is used in DM direct detection [1][2][3] and indirect detection [51][52][53].…”

Section: Resultsmentioning

confidence: 99%

“…Dark Matter (DM) is one of the most fundamental mysteries in modern physics, even though its gravitational effects are well understood. Besides gravity, the interactions between DM and baryons are also of great interest, as explored by experiments such as PandaX [1] and XENONnT [2]. However, no signal has been detected for DM masses above about 1 GeV.…”

Section: Introductionmentioning

confidence: 99%

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Space Astronomy in China

Zhang

2022

Space Science in China

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We investigate the elastic scattering cross section between dark matter and protons using the DES Year 3 weak lensing data. This scattering induces a dark acoustic oscillation structure in the matter power spectra. To address non-linear effects at low redshift, we utilize principal component analysis alongside a limited set of N -body simulations, improving the reliability of our matter power spectrum prediction. We further perform a robust Markov Chain Monte Carlo analysis to derive the upper bounds on the DM-proton elastic scattering cross-section, assuming different velocity dependencies. Our results, presented as the first Frequentist upper limits, are compared with the ones obtained by Bayesian approach. Compared with the upper limits derived from the Planck cosmic microwave background data, our findings from DES Year 3 data exhibit improvements of up to a factor of five. In addition, we forecast the future sensitivities of the China Space Station Telescope, the upcoming capabilities of this telescope could improve the current limits by approximately one order of magnitude.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Space Astronomy in China

Zhang

2022

Space Science in China

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“…Once found, this signal, along with the preceding and subsequent signals within a drift time window of 1 ms, is combined to form a physical event. This approach has been utilized in all of the currently published PandaX-4T results [3][4][5][10][11][12]. The second method is developed to improve the reconstruction efficiency of physical events in low energy region during the ongoing combined analysis with both the commissioning run (Run0, 2020-2021) and the first science run (Run1, 2021-2022) data.…”

Section: Jinst 19 P05029mentioning

confidence: 99%

Data reduction strategy in the PandaX-4T experiment

Zhou,

Chen

2024

J. Inst.

Self Cite

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The PandaX-4T experiment is designed for multiple purposes, including searches for solar neutrinos, weakly interacting massive particles, and rare double beta decays of xenon isotopes. The experiment produces a huge amount of raw data that needs to be stored for related physical analyses in a wide energy range. With the upgrading of the PandaX-4T experiment, the doubled sampling rate resulted in a larger data size, which challenges both the cost and the data processing speed. To address this issue, we propose a data reduction strategy by removing the noise tail of large signals and downsampling the remaining parts of them. This strategy reduces the requirement for storage by 65% while increasing data processing speed. The influences on physical analyses on different topics at different energy regions are negligible.

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“…-The existence of dark matter (DM, denoted by χ) in the universe is supported by convincing cosmological evidence [1,2]. Direct detection (DD) experiments such as XENON [3], LUX [4], PandaX [5], DarkSide [6], CRESST [7], SuperCDMS [8], CoGeNT [9] and CDEX [10][11][12][13][14][15][16][17][18][19][20] are dedicated to probing DM-nucleus (χ-N) elastic scattering through spin-independent (SI) and spin-dependent interactions, yet no clear signals have been observed to date. DD experiments rapidly lose sensitivity toward the sub-GeV mass range, because light DM particles carry insufficient energy to generate nuclear recoil signals that exceed the threshold of the detector.…”

mentioning

confidence: 99%

Constraints on sub-GeV dark matter boosted by cosmic rays from the CDEX-10 experiment at the China Jinping Underground Laboratory

Xu¹,

Yang²,

Yue³

et al. 2022

Phys. Rev. D

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We report new constraints on light dark matter (DM) boosted by blazars using the 205.4 kg day data from the CDEX-10 experiment located at the China Jinping Underground Laboratory. Two representative blazars, TXS 0506+56 and BL Lacertae are studied. The results derived from TXS 0506+56 exclude DM-nucleon elastic scattering cross sections from 4.6 × 10 −33 cm 2 to 1 × 10 −26 cm 2 for DM masses between 10 keV and 1 GeV, and the results derived from BL Lacertae exclude DMnucleon elastic scattering cross sections from 2.4 × 10 −34 cm 2 to 1 × 10 −26 cm 2 for the same range of DM masses. The constraints correspond to the best sensitivities among solid-state detector experiments in the sub-MeV mass range.

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Limits on the luminance of dark matter from xenon recoil data

Cited by 18 publications

References 42 publications

Space Astronomy in China

Space Astronomy in China

Data reduction strategy in the PandaX-4T experiment

Constraints on sub-GeV dark matter boosted by cosmic rays from the CDEX-10 experiment at the China Jinping Underground Laboratory

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