002921605 001__ 2921605
002921605 003__ SzGeCERN
002921605 005__ 20250115204010.0
002921605 0247_ $$2DOI$$9SISSA$$a10.22323/1.431.0072
002921605 0248_ $$aoai:cds.cern.ch:2921605$$pcerncds:FULLTEXT$$pcerncds:CERN:FULLTEXT$$pcerncds:CERN
002921605 035__ $$9https://inspirehep.net/api/oai2d$$aoai:inspirehep.net:2754066$$d2025-01-14T15:10:04Z$$h2025-01-15T06:45:33Z$$mmarcxml
002921605 035__ $$9Inspire$$a2754066
002921605 041__ $$aeng
002921605 100__ $$aBisio, Pietro$$mpietro.bisio@ge.infn.it$$uGenoa U.$$uINFN, Genoa$$vGenoa U.
002921605 245__ $$9SISSA$$aThe NA64-e experiment at CERN
002921605 260__ $$c2024
002921605 300__ $$a7 p
002921605 520__ $$9SISSA$$aOne of the most compelling arguments motivating the search for physics beyond the Standard Model (SM) is the need to explain the nature of Dark Matter (DM). Despite an extensive experimental program that combined direct, indirect, and detection at colliders, to date, no conclusive results about DM particle nature have been determined. Among the DM models, those predicting DM particles in the sub-GeV mass range (also called Light Dark Matter or LDM) represent a theoretically well-grounded option if a new DM-SM interaction is introduced. A simple hypothesis considers a new feeble force transmitted by a vector boson $A^\prime$ (called Dark Photon), kinetically mixed with the ordinary photon. In this scenario, the $A^\prime$ can be generated in the SM interactions of charged particles and subsequently decays either into SM or LDM particles. The NA64-e experiment at CERN exploits the 100 GeV SPS electron beam impinging on a thick active target focusing mostly on the production and detection of the $A^\prime$ to LDM decay. If an $A^\prime$ is produced in the target, the LDM daughter particles leave the detector carrying away a significant amount of energy, resulting in a missing energy event. To date, NA64-e has collected $2.84\times10^{11}$ electrons on target. No events with missing energy greater than 50 GeV and no activity within the veto systems were observed. These results allowed the collaboration to set the most competitive limits in the LDM parameter space.
002921605 540__ $$aCC-BY-NC-ND-4.0$$bSISSA$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/
002921605 542__ $$3publication$$dThe authors
002921605 65017 $$2SzGeCERN$$aParticle Physics - Experiment
002921605 690C_ $$aARTICLE
002921605 690C_ $$aCERN
002921605 693__ $$aCERN SPS$$eNA64
002921605 710__ $$gNA64 Collaboration
002921605 773__ $$c072$$pPoS$$vDISCRETE2022$$wC22-11-07.3$$y2024
002921605 8564_ $$82705186$$s1353382$$uhttps://cds.cern.ch/record/2921605/files/document.pdf$$yFulltext
002921605 960__ $$a13
002921605 962__ $$b2838341$$k072$$nbaden-baden20221107
002921605 980__ $$aARTICLE
002921605 980__ $$aConferencePaper