Constraints on effective field theory couplings using 311.2 days of LUX data

(LUX Collaboration)

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish (US)
Article number062005
JournalPhysical Review D
Volume104
Issue number6
DOIs
StatePublished - Sep 15 2021

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Fingerprint

Dive into the research topics of 'Constraints on effective field theory couplings using 311.2 days of LUX data'. Together they form a unique fingerprint.

Cite this