The Atacama Cosmology Telescope: limits on dark matter-baryon interactions from DR4 power spectra
The Atacama Cosmology Telescope: limits on dark matter-baryon interactions from DR4 power spectra
复制标题
阿塔卡马宇宙学望远镜:DR4 功率谱对暗物质-重子相互作用的限制
DOI:
10.1088/1475-7516/2023/02/046
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发表时间:
2023
影响因子:
6.4
通讯作者:
Hincks, Adam
中科院分区:
文献类型:
--
作者:
Li, Zack;An, Rui;Gluscevic, Vera;Boddy, Kimberly K.;Bond, J. Richard;Calabrese, Erminia;Dunkley, Jo;Gallardo, Patricio A.;Guan, Yilun;Hincks, Adam
Diverse astrophysical observations suggest the existence of cold dark matter that interacts only gravitationally with radiation and ordinary baryonic matter. Any nonzero coupling between dark matter and baryons would provide a significant step towards understanding the particle nature of dark matter. Measurements of the cosmic microwave background (CMB) provide constraints on such a coupling that complement laboratory searches. In this work we place upper limits on a variety of models for dark matter elastic scattering with protons and electrons by combining large-scale CMB data from the Planck satellite with small-scale information from Atacama Cosmology Telescope (ACT) DR4 data. In the case of velocity-independent scattering, we obtain bounds on the interaction cross section for protons that are 40% tighter than previous constraints from the CMB anisotropy. For some models with velocity-dependent scattering we find best-fitting cross sections with a 2σ deviation from zero, but these scattering models are not statistically preferred over ΛCDM in terms of model selection.
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DOI:
--
发表时间:
2011-04
期刊:
arXiv: Instrumentation and Methods for Astrophysics
影响因子:
--
作者:
J. Lesgourgues
通讯作者:
J. Lesgourgues
影响因子:
5
作者:
H. Prince;J. Dunkley
通讯作者:
J. Dunkley
影响因子:
5
作者:
Hill, J. Colin;Calabrese, Erminia;Aiola, Simone;Battaglia, Nicholas;Bolliet, Boris;Choi, Steve K.;Devlin, Mark J.;Duivenvoorden, Adriaan J.;Dunkley, Jo;Ferraro, Simone
通讯作者:
Ferraro, Simone
DOI:
10.1088/1475-7516/2020/12/045
发表时间:
2020-12-01
影响因子:
6.4
作者:
Choi, Steve K.;Hasselfield, Matthew;Zhu, Ningfeng
通讯作者:
Zhu, Ningfeng
DOI:
10.3847/2041-8213/abd807
发表时间:
2020-10
期刊:
The Astrophysical Journal Letters
影响因子:
--
作者:
Karime Maamari;V. Gluscevic;K. Boddy;E. Nadler;Risa Wechsler
通讯作者:
Karime Maamari;V. Gluscevic;K. Boddy;E. Nadler;Risa Wechsler