000086314 001__ 86314 000086314 005__ 20200716101531.0 000086314 0247_ $$2doi$$a10.1007/JHEP10(2019)051 000086314 0248_ $$2sideral$$a114955 000086314 037__ $$aART-2019-114955 000086314 041__ $$aeng 000086314 100__ $$aNovella P. 000086314 245__ $$aRadiogenic backgrounds in the NEXT double beta decay experiment 000086314 260__ $$c2019 000086314 5060_ $$aAccess copy available to the general public$$fUnrestricted 000086314 5203_ $$aNatural radioactivity represents one of the main backgrounds in the search for neutrinoless double beta decay. Within the NEXT physics program, the radioactivity- induced backgrounds are measured with the NEXT-White detector. Data from 37.9 days of low-background operations at the Laboratorio Subterráneo de Canfranc with xenon depleted in 136Xe are analyzed to derive a total background rate of (0.84±0.02) mHz above 1000 keV. The comparison of data samples with and without the use of the radon abatement system demonstrates that the contribution of airborne-Rn is negligible. A radiogenic background model is built upon the extensive radiopurity screening campaign conducted by the NEXT collaboration. A spectral fit to this model yields the specific contributions of 60Co, 40K, 214Bi and 208Tl to the total background rate, as well as their location in the detector volumes. The results are used to evaluate the impact of the radiogenic backgrounds in the double beta decay analyses, after the application of topological cuts that reduce the total rate to (0.25±0.01) mHz. Based on the best-fit background model, the NEXT-White median sensitivity to the two-neutrino double beta decay is found to be 3.5s after 1 year of data taking. The background measurement in a Qßß±100 keV energy window validates the best-fit background model also for the neutrinoless double beta decay search with NEXT-100. Only one event is found, while the model expectation is (0.75±0.12) events. 000086314 536__ $$9info:eu-repo/grantAgreement/EC/FP7/339787/EU/Towards the NEXT generation of bb0nu experimets/NEXT$$9info:eu-repo/grantAgreement/ES/MICINN/RTI2018-095979$$9info:eu-repo/grantAgreement/ES/MINECO/FIS2014-53371-C04$$9info:eu-repo/grantAgreement/ES/MINECO/MDM-2016-0692$$9info:eu-repo/grantAgreement/ES/MINECO/SEV-2014-0398 000086314 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/ 000086314 590__ $$a5.875$$b2019 000086314 591__ $$aPHYSICS, PARTICLES & FIELDS$$b4 / 29 = 0.138$$c2019$$dQ1$$eT1 000086314 592__ $$a0.948$$b2019 000086314 593__ $$aNuclear and High Energy Physics$$c2019$$dQ2 000086314 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000086314 700__ $$aPalmeiro B. 000086314 700__ $$aSorel M. 000086314 700__ $$aUsón A. 000086314 700__ $$aFerrario P. 000086314 700__ $$aGómez-Cadenas J.J. 000086314 700__ $$aAdams C. 000086314 700__ $$aÁlvarez V. 000086314 700__ $$aArazi L. 000086314 700__ $$aArnquist I.J. 000086314 700__ $$aAzevedo C.D.R. 000086314 700__ $$aBailey K. 000086314 700__ $$aBallester F. 000086314 700__ $$aBenlloch-Rodríguez J.M. 000086314 700__ $$aBorges F.I.G.M. 000086314 700__ $$aByrnes N. 000086314 700__ $$aCárcel S. 000086314 700__ $$aCarrión J.V. 000086314 700__ $$0(orcid)0000-0002-6948-5101$$aCebrían S.$$uUniversidad de Zaragoza 000086314 700__ $$aChurch E. 000086314 700__ $$aConde C.A.N. 000086314 700__ $$aContreras T. 000086314 700__ $$aDíaz G. 000086314 700__ $$aDíaz J. 000086314 700__ $$aDiesburg M. 000086314 700__ $$aEscada J. 000086314 700__ $$aEsteve R. 000086314 700__ $$aFelkai R. 000086314 700__ $$aFernandes A.F.M. 000086314 700__ $$aFernandes L.M.P. 000086314 700__ $$aFerreira A.L. 000086314 700__ $$aFreitas E.D.C. 000086314 700__ $$aGenerowicz J. 000086314 700__ $$aGhosh S. 000086314 700__ $$aGoldschmidt A. 000086314 700__ $$aGonzalez-Díaz D. 000086314 700__ $$aGuenette R. 000086314 700__ $$aGutiérrez R.M. 000086314 700__ $$aHaefner J. 000086314 700__ $$aHafidi K. 000086314 700__ $$aHauptman J. 000086314 700__ $$aHenriques C.A.O. 000086314 700__ $$aHernando Morata J.A. 000086314 700__ $$aHerrero P. 000086314 700__ $$aHerrero V. 000086314 700__ $$aIfergan Y. 000086314 700__ $$aJohnston S. 000086314 700__ $$aJones B.J.P. 000086314 700__ $$aKekic M. 000086314 700__ $$aLabarga L. 000086314 700__ $$aLaing A. 000086314 700__ $$aLebrun P. 000086314 700__ $$aLópez-March N. 000086314 700__ $$aLosada M. 000086314 700__ $$aMano R.D.P. 000086314 700__ $$aMartín-Albo J. 000086314 700__ $$aMartínez A. 000086314 700__ $$aMartínez-Lema G. 000086314 700__ $$aMcDonald A.D. 000086314 700__ $$aMonrabal F. 000086314 700__ $$aMonteiro C.M.B. 000086314 700__ $$aMora F.J. 000086314 700__ $$aMuñoz Vidal J. 000086314 700__ $$aNygren D.R. 000086314 700__ $$aPara A. 000086314 700__ $$aPérez J. 000086314 700__ $$aPsihas F. 000086314 700__ $$aQuerol M. 000086314 700__ $$aRenner J. 000086314 700__ $$aRepond J. 000086314 700__ $$aRiordan S. 000086314 700__ $$aRipoll L. 000086314 700__ $$aRodríguez García Y. 000086314 700__ $$aRodríguez J. 000086314 700__ $$aRogers L. 000086314 700__ $$aRomeo B. 000086314 700__ $$aRomo-Luque C. 000086314 700__ $$aSantos F.P. 000086314 700__ $$ados Santos J.M.F. 000086314 700__ $$aSimón A. 000086314 700__ $$aSofka C. 000086314 700__ $$aStiegler T. 000086314 700__ $$aToledo J.F. 000086314 700__ $$aTorrent J. 000086314 700__ $$aVeloso J.F.C.A. 000086314 700__ $$aWebb R. 000086314 700__ $$aWeiss-Babai R. 000086314 700__ $$aWhite J.T. 000086314 700__ $$aWoodruff K. 000086314 700__ $$aYahlali N. 000086314 700__ $$aThe NEXT collaboration 000086314 7102_ $$12004$$2390$$aUniversidad de Zaragoza$$bDpto. Física Teórica$$cÁrea Física Atóm.Molec.y Nucl. 000086314 773__ $$g2019, 10 (2019), 051 1-23$$pJ. high energy phys.$$tJournal of High Energy Physics$$x1126-6708 000086314 8564_ $$s1508277$$uhttps://zaguan.unizar.es/record/86314/files/texto_completo.pdf$$yVersión publicada 000086314 8564_ $$s79171$$uhttps://zaguan.unizar.es/record/86314/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000086314 909CO $$ooai:zaguan.unizar.es:86314$$particulos$$pdriver 000086314 951__ $$a2020-07-16-09:33:43 000086314 980__ $$aARTICLE