Imperial College London


Faculty of Natural SciencesDepartment of Physics

Professor of Experimental Astrophysics



+44 (0)20 7594 7552t.sumner




1108Blackett LaboratorySouth Kensington Campus






BibTex format

author = {Akerib, DS and Alsum, S and Araujo, HM and Bai, X and Balajthy, J and Beltrame, P and Bernard, EP and Bernstein, A and Biesiadzinski, TP and Boulton, EM and Boxer, B and Bras, P and Burdin, S and Byram, D and Carmona-Benitez, MC and Chan, C and Cutter, JE and Davison, TJR and Druszkiewicz, E and Fallon, SR and Fan, A and Fiorucci, S and Gaitskell, RJ and Genovesi, J and Ghag, C and Gilchriese, MGD and Gwilliam, C and Hall, CR and Haselschwardt, SJ and Hertel, SA and Hogan, DP and Horn, M and Huang, DQ and Ignarra, CM and Jacobsen, RG and Ji, W and Kamdin, K and Kazkaz, K and Khaitan, D and Knoche, R and Korolkova, EV and Kravitz, S and Kudryavtsev, VA and Lenardo, BG and Lesko, KT and Liao, J and Lin, J and Lindote, A and Lopes, MI and Manalaysay, A and Mannino, RL and Marangou, N and Marzioni, MF and McKinsey, DN and Mei, D-M and Moongweluwan, M and Morad, JA and Murphy, ASJ and Nehrkorn, C and Nelson, HN and Neves, F and Oliver-Mallory, KC and Palladino, KJ and Pease, EK and Rischbie},
doi = {10.1103/PhysRevD.98.062005},
journal = {Physical Review D - Particles, Fields, Gravitation and Cosmology},
title = {Search for annual and diurnal rate modulations in the LUX experiment},
url = {},
volume = {98},
year = {2018}

RIS format (EndNote, RefMan)

AB - 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/keVee/tonne, which is among the lowest in all dark matter experiments. No statistically significant annual modulation was observed in energy windows up to 26 keVee. Between 2 and 6 keVee, this analysis demonstrates the most sensitive annual modulation search up to date, with 9.2σ tension with the DAMA/LIBRA result. We also report no observation of diurnal modulations above 0.2 cpd/keVee/tonne amplitude between 2 and 6 keVee.
AU - Akerib,DS
AU - Alsum,S
AU - Araujo,HM
AU - Bai,X
AU - Balajthy,J
AU - Beltrame,P
AU - Bernard,EP
AU - Bernstein,A
AU - Biesiadzinski,TP
AU - Boulton,EM
AU - Boxer,B
AU - Bras,P
AU - Burdin,S
AU - Byram,D
AU - Carmona-Benitez,MC
AU - Chan,C
AU - Cutter,JE
AU - Davison,TJR
AU - Druszkiewicz,E
AU - Fallon,SR
AU - Fan,A
AU - Fiorucci,S
AU - Gaitskell,RJ
AU - Genovesi,J
AU - Ghag,C
AU - Gilchriese,MGD
AU - Gwilliam,C
AU - Hall,CR
AU - Haselschwardt,SJ
AU - Hertel,SA
AU - Hogan,DP
AU - Horn,M
AU - Huang,DQ
AU - Ignarra,CM
AU - Jacobsen,RG
AU - Ji,W
AU - Kamdin,K
AU - Kazkaz,K
AU - Khaitan,D
AU - Knoche,R
AU - Korolkova,EV
AU - Kravitz,S
AU - Kudryavtsev,VA
AU - Lenardo,BG
AU - Lesko,KT
AU - Liao,J
AU - Lin,J
AU - Lindote,A
AU - Lopes,MI
AU - Manalaysay,A
AU - Mannino,RL
AU - Marangou,N
AU - Marzioni,MF
AU - McKinsey,DN
AU - Mei,D-M
AU - Moongweluwan,M
AU - Morad,JA
AU - Murphy,ASJ
AU - Nehrkorn,C
AU - Nelson,HN
AU - Neves,F
AU - Oliver-Mallory,KC
AU - Palladino,KJ
AU - Pease,EK
AU - Rischbieter,GRC
AU - Rhyne,C
AU - Rossiter,P
AU - Shaw,S
AU - Shutt,TA
AU - Silva,C
AU - Solmaz,M
AU - Solovov,VN
AU - Sorensen,P
AU - Sumner,TJ
AU - Szydagis,M
AU - Taylor,DJ
AU - Taylor,WC
AU - Tennyson,BP
AU - Terman,PA
AU - Tiedt,DR
AU - To,WH
AU - Tripathi,M
AU - Tvrznikova,L
AU - Utku,U
AU - Uvarov,S
AU - Velan,V
AU - Verbus,JR
AU - Webb,RC
AU - White,JT
AU - Whitis,TJ
AU - Witherell,MS
AU - Wolfs,FLH
AU - Woodward,D
AU - Xu,J
AU - Yazdani,K
AU - Zhang,C
DO - 10.1103/PhysRevD.98.062005
PY - 2018///
SN - 1550-2368
TI - Search for annual and diurnal rate modulations in the LUX experiment
T2 - Physical Review D - Particles, Fields, Gravitation and Cosmology
UR -
UR -
UR -
VL - 98
ER -