Akerib, DS;
Alsum, S;
Araújo, HM;
Bai, X;
Balajthy, J;
Bang, J;
Baxter, A;
... Zhang, C; + view all
(2021)
Constraints on effective field theory couplings using 311.2 days of LUX data.
Physical Review D
, 104
(6)
, Article 062005. 10.1103/PhysRevD.104.062005.
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Abstract
We report here the results of a nonrelativistic effective field theory (EFT) WIMP search analysis using LUX data. We build upon previous LUX analyses by extending the search window to include nuclear recoil energies up to ∼180 keVnr, requiring a reassessment of data quality criteria and background models. In order to use an unbinned profile likelihood statistical framework, the development of new analysis techniques to account for higher-energy backgrounds was required. With a 3.14×104 kg·day exposure using data collected between 2014 and 2016, we find our data is compatible with the background expectation and set 90% C.L. exclusion limits on nonrelativistic EFT WIMP-nucleon couplings, improving upon previous LUX results and providing constraints on a EFT WIMP interactions using the {neutron,proton} interaction basis. Additionally, we report exclusion limits on inelastic EFT WIMP-isoscalar recoils that are competitive and world-leading for several interaction operators.
Type: | Article |
---|---|
Title: | Constraints on effective field theory couplings using 311.2 days of LUX data |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1103/PhysRevD.104.062005 |
Publisher version: | https://doi.org/10.1103/PhysRevD.104.062005 |
Language: | English |
Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
URI: | https://discovery.ucl.ac.uk/id/eprint/10135866 |
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