Dark Matter Annual Modulation Results from the ANAIS-112 Experiment

Amaré, Julio (Universidad de Zaragoza) ; Cebrián, Susana (Universidad de Zaragoza) ; Cintas, David (Universidad de Zaragoza) ; Coarasa, Iván (Universidad de Zaragoza) ; García, Eduardo (Universidad de Zaragoza) ; Martínez, María (Universidad de Zaragoza) ; Oliván, Miguel ; Ortigoza, Ysrael (Universidad de Zaragoza) ; Ortiz de Solórzano, Alfonso (Universidad de Zaragoza) ; Puimedón, Jorge (Universidad de Zaragoza) ; Salinas, Ana (Universidad de Zaragoza) ; Sarsa, María (Universidad de Zaragoza) ; Villar, Patricia (Universidad de Zaragoza)

Resumen: An annual modulation in the interaction rate of galactic dark matter particles is foreseen due to Earth’s movement around the Sun; the DAMA/LIBRA observation of a modulation signal compatible with expectations has intrigued the community for twenty years. The ANAIS-112 experiment, with a target of 112.5 kg of NaI(Tl), has been running smoothly at the Canfranc Underground Laboratory (Spain) since 2017. It aims to test this observation using the same detection technique and target. Results on the modulation search from two years of data (220.7 kg·y) have been presented and the analysis of three years (313.6 kg·y) is underway. Under the hypothesis of modulation, the deduced amplitudes from best fits are in all cases compatible with zero for the two energy regions at [2–6] and [1–6] keV; the results agree with the expected sensitivity for the considered exposure and fully support the goal of achieving a 3σ sensitivity to explore the DAMA/LIBRA result for a five-year operation. Here, the ANAIS-112 set-up and performance will be briefly recapped and the annual modulation results and prospects will be discussed.

Idioma: Inglés

DOI: 10.3390/ECU2021-09331

Año: 2021

Publicado en: Physical sciences forum 2, 1 (2021), 33 [6 pp.]
ISSN: 2673-9984

Financiación: info:eu-repo/grantAgreement/ES/MICINN/FPI-CSD2009-00064
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2019-104374GB-I00
Financiación: info:eu-repo/grantAgreement/ES/MINECO/Consolider-Ingenio/CSD2007-00042
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/FPA2017-83133-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FPA2017-90566-REDC

Tipo y forma: Article (Published version)

Área (Departamento): Área Técnica. Lab. y Talleres (Dpto. Física Teórica)
Área (Departamento): Área Teoría Señal y Comunicac. (Dpto. Ingeniería Electrón.Com.)
Área (Departamento): Área Óptica (Dpto. Física Aplicada)
Área (Departamento): Área Física Atóm.Molec.y Nucl. (Dpto. Física Teórica)