Akerib, DS, Alsum, S, Araujo, HM, Bai, X, Balajthy, J, Bang, J, Baxter, A, Bernard, EP, Bernstein, A, Biesiadzinski, TP et al (show 87 more authors)
(2021)
Constraints on effective field theory couplings using 311.2 days of LUX data.
PHYSICAL REVIEW D, 104 (6).
062005-.
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.
Item Type: | Article |
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Uncontrolled Keywords: | 5106 Nuclear and Plasma Physics, 5110 Synchrotrons and Accelerators, 51 Physical Sciences |
Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
Depositing User: | Symplectic Admin |
Date Deposited: | 13 Dec 2021 16:11 |
Last Modified: | 20 Jun 2024 22:05 |
DOI: | 10.1103/PhysRevD.104.062005 |
Open Access URL: | https://discovery.ucl.ac.uk/id/eprint/10135866/ |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3145302 |