期刊
PHYSICAL REVIEW LETTERS
卷 122, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.122.071301
关键词
-
资金
- National Science Foundation
- Swiss National Science Foundation
- German Ministry for Education and Research
- Max Planck Gesellschaft
- Deutsche Forschungsgemeinschaft
- Netherlands Organisation for Scientific Research (NWO)
- Netherlands eScience Center (NLeSC)
- SURF Cooperative
- Weizmann Institute of Science
- Israeli Centers of Research Excellence (I-CORE)
- Pazy-Vatat
- Initial Training Network Invisibles (Marie Curie Actions) [PITNGA-2011-289442]
- Fundacao para a Ciencia e a Tecnologia
- Region des Pays de la Loire
- Knut and Alice Wallenberg Foundation
- Kavli Foundation
- Abeloe Fellowship
- Istituto Nazionale di Fisica Nucleare
- Laboratori Nazionali del Gran Sasso
- U.S. DOE [DE-FG02-00ER41132]
- ERC [307986 STRONGINT]
- Deutsche Forschungsgemeinschaft [SFB 1245, 279384907]
- Max-Planck Society
- Japanese Society for the Promotion of Science KAKENHI [18K03639]
- MEXT as Priority Issue on Post-K computer (Elucidation of the fundamental laws and evolution of the universe)
- JICFuS
- CNS-RIKEN
- Grants-in-Aid for Scientific Research [18K03639] Funding Source: KAKEN
We present first results on the scalar coupling of weakly interacting massive particles (WIMPs) to pions from 1 t yr of exposure with the XENON1T experiment. This interaction is generated when the WIMP couples to a virtual pion exchanged between the nucleons in a nucleus. In contrast to most nonrelativistic operators, these pion-exchange currents can be coherently enhanced by the total number of nucleons and therefore may dominate in scenarios where spin-independent WIMP-nucleon interactions are suppressed. Moreover, for natural values of the couplings, they dominate over the spin-dependent channel due to their coherence in the nucleus. Using the signal model of this new WIMP-pion channel, no significant excess is found, leading to an upper limit cross section of 6.4 x 10(-46) cm(2) (90% confidence level) at 30 GeV/c(2) WIMP mass.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据