96252 20241205085706.0 doi 10.1103/PhysRevLett.123.031301 sideral 113138 ART-2019-113138 eng Amare, J. Universidad de Zaragoza (orcid)0000-0002-7158-9794 First Results on Dark Matter Annual Modulation from the ANAIS-112 Experiment 2019 Access copy available to the general public Unrestricted ANAIS is a direct detection dark matter experiment aiming at the testing of the DAMA/LIBRA annual modulation result, which, for about two decades, has neither been confirmed nor ruled out by any other experiment in a model independent way. ANAIS - 112, consisting of 112.5 kg of sodium iodide crystals, has been taking data at the Canfranc Underground Laboratory, Spain, since August 2017. This Letter presents the annual modulation analysis of 1.5 years of data, amounting to 157.55 kg yr. We focus on the model independent analysis searching for modulation and the validation of our sensitivity prospects. ANAIS - 112 data are consistent with the null hypothesis (p values of 0.67 and 0.18 for [2-6] and [1-6] keV energy regions, respectively). The best fits for the modulation hypothesis are consistent with the absence of modulation (S-m = -0.0044 +/- 0.0058 cpd/kg/keV and -0.0015 +/- 0.0063 cpd/kg/keV, respectively). They are in agreement with our estimated sensitivity for the accumulated exposure, which supports our projected goal of reaching a 3 sigma sensitivity to the DAMA/LIBRA result in five years of data taking. info:eu-repo/grantAgreement/ES/MINECO/Consolider-Ingenio2010-MULTI-DARK-CSD2009-00064 info:eu-repo/grantAgreement/ES/MINECO/Consolider-Ingenio2010-MULTI-DARK-CPANCSD2007-00042 info:eu-repo/grantAgreement/ES/MINECO-FEDER/FPA2014-55986-P info:eu-repo/grantAgreement/ES/MINECO-FEDER/FPA2017-83133-P info:eu-repo/grantAgreement/ES/MINECO/Spanish Red Consolider MultiDark FPA2017-90566-REDC info:eu-repo/semantics/closedAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 8.385 2019 PHYSICS, MULTIDISCIPLINARY 6 / 84 = 0.071 2019 Q1 T1 3.588 2019 Physics and Astronomy (miscellaneous) 2019 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Cebrian, S. Universidad de Zaragoza (orcid)0000-0002-6948-5101 Coarasa, I. Universidad de Zaragoza (orcid)0000-0002-8100-1368 Cuesta, C. (orcid)0000-0003-1190-7233 Garcia, E. Universidad de Zaragoza (orcid)0000-0002-9827-2332 Martinez, M. Universidad de Zaragoza (orcid)0000-0002-9043-4691 Olivan, M.A. Universidad de Zaragoza (orcid)0000-0001-7025-061X Ortigoza, Y. (orcid)0000-0002-2793-7544 Ortiz de Solorzano, A. Puimedon, J. Universidad de Zaragoza (orcid)0000-0001-8732-8196 Salinas, A. Sarsa, M.L. Universidad de Zaragoza (orcid)0000-0002-7552-1228 Villar, P. Universidad de Zaragoza (orcid)0000-0002-6519-4315 Villar, J.A. (orcid)0000-0003-0228-7589 5007 520 Universidad de Zaragoza Dpto. Informát.Ingenie.Sistms. Área Ingen.Sistemas y Automát. 2002 647 Universidad de Zaragoza Dpto. Física Aplicada Área Óptica 2004 390 Universidad de Zaragoza Dpto. Física Teórica Área Física Atóm.Molec.y Nucl. 123, 3 (2019), 031301 [6 pp.] Phys. rev. lett. Physical Review Letters 0031-9007 377432 http://zaguan.unizar.es/record/96252/files/texto_completo.pdf Versión publicada 3107251 http://zaguan.unizar.es/record/96252/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:96252 articulos driver 2024-12-05-08:56:11 ARTICLE