Akerib, DS; Alsum, S; Araujo, HM; Bai, X; Balajthy, J; Beltrame, P; Bernard, EP; ... Zhang, C; + view all Akerib, DS; Alsum, S; Araujo, HM; Bai, X; Balajthy, J; Beltrame, P; Bernard, EP; Bernstein, A; Biesiadzinski, TP; Boulton, EM; Boxer, B; Bras, P; Burdin, S; Byram, D; Carmona-Benitez, MC; Chan, C; Cutter, JE; Davison, TJR; Druszkiewicz, E; Fallon, SR; Fan, A; Fiorucci, S; Gaitskell, RJ; Genovesi, J; Ghag, C; Gilchriese, MGD; Gwilliam, C; Hall, CR; Haselschwardt, SJ; Hertel, SA; Hogan, DP; Horn, M; Huang, DQ; Ignarra, CM; Jacobsen, RG; Ji, W; Kamdin, K; Kazkaz, K; Khaitan, D; Knoche, R; Korolkova, EV; Kravitz, S; Kudryavtsev, VA; Lenardo, BG; Lesko, KT; Liao, J; Lin, J; Lindote, A; Lopes, MI; Manalaysay, A; Mannino, RL; Marangou, N; Marzioni, MF; McKinsey, DN; Mei, D-M; Moongweluwan, M; Morad, JA; Murphy, ASJ; Nehrkorn, C; Nelson, HN; Neves, F; Oliver-Mallory, KC; Palladino, KJ; Pease, EK; Rischbieter, GRC; Rhyne, C; Rossiter, P; Shaw, S; Shutt, TA; Silva, C; Solmaz, M; Solovov, VN; Sorensen, P; Sumner, TJ; Szydagis, M; Taylor, DJ; Taylor, WC; Tennyson, BP; Terman, PA; Tiedt, DR; To, WH; Tripathi, M; Tvrznikova, L; Utku, U; Uvarov, S; Velan, V; Verbus, JR; Webb, RC; White, JT; Whitis, TJ; Witherell, MS; Wolfs, FLH; Woodward, D; Xu, J; Yazdani, K; Zhang, C; - view fewer (2018) Search for annual and diurnal rate modulations in the LUX experiment. Physical Review D , 98 (6) 10.1103/PhysRevD.98.062005.

Preview

Text PhysRevD.98.062005.pdf - Published Version Download (839kB) | Preview

Abstract

Various dark matter models predict annual and diurnal modulations of dark matter interaction rates in Earth-based experiments as a result of the Earth’s motion in the halo. Observation of such features can provide generic evidence for detection of dark matter interactions. This paper reports a search for both annual and diurnal rate modulations in the LUX dark matter experiment using over 20 calendar months of data acquired between 2013 and 2016. This search focuses on electron recoil events at low energies, where leptophilic dark matter interactions are expected to occur and where the DAMA experiment has observed a strong rate modulation for over two decades. By using the innermost volume of the LUX detector and developing robust cuts and corrections, we obtained a stable event rate of 2.3 ± 0.2     cpd / keV ee / tonne , which is among the lowest in all dark matter experiments. No statistically significant annual modulation was observed in energy windows up to 26     keV ee . Between 2 and 6     keV ee , this analysis demonstrates the most sensitive annual modulation search up to date, with 9.2 σ tension with the DAMA/LIBRA result. We also report no observation of diurnal modulations above 0.2     cpd / keV ee / tonne amplitude between 2 and 6     keV ee .

Download activity - last month

Export as JSONXMLCSV

Download activity - last 12 months

Export as XMLCSVJSON

Downloads by country - last 12 months

Export as XMLCSVJSON

Archive Staff Only

View Item