Improved exclusion limit for light dark matter from e+e- annihilation in NA64

Vista sencilla de ítem
dc.contributor.authorAndreev, Yu. M.
dc.contributor.authorBanerjee D.
dc.contributor.authorBernhard J.
dc.contributor.authorBondì M.
dc.contributor.authorBurtsev V.E.
dc.contributor.authorCelentano A.
dc.contributor.authorCharitonidis N.
dc.contributor.authorChumakov A.G.
dc.contributor.authorCooke D.
dc.contributor.authorCrivelli P.
dc.contributor.authorDepero E.
dc.contributor.authorDermenev A.V.
dc.contributor.authorDonskov S.V.
dc.contributor.authorDusaev R.R.
dc.contributor.authorEnik T.
dc.contributor.authorFeshchenko A.
dc.contributor.authorFrolov V.N.
dc.contributor.authorGardikiotis A.
dc.contributor.authorGerassimov S.G.
dc.contributor.authorGninenko S.N.
dc.contributor.authorHösgen M.
dc.contributor.authorJeckel M.
dc.contributor.authorKachanov V.A.
dc.contributor.authorKarneyeu A.E.
dc.contributor.authorKekelidze G.
dc.contributor.authorKetzer B.
dc.contributor.authorKirpichnikov D.V.
dc.contributor.authorKirsanov M.M.
dc.contributor.authorKolosov V.N.
dc.contributor.authorKonorov I.V.
dc.contributor.authorKovalenko S.G.
dc.contributor.authorKramarenko V.A.
dc.contributor.authorKravchuk L.V.
dc.contributor.authorKrasnikov N.V.
dc.contributor.authorKuleshov S.V.
dc.contributor.authorLyubovitskij V.E.
dc.contributor.authorLysan V.
dc.contributor.authorMarsicano L.
dc.contributor.authorMatveev V.A.
dc.contributor.authorMikhailov, Yu. V.
dc.contributor.authorMolina Bueno L.
dc.contributor.authorPeshekhonov D.V.
dc.contributor.authorPolyakov V.A.
dc.contributor.authorRadics B.
dc.contributor.authorRojas R.
dc.contributor.authorRubbia A.
dc.contributor.authorSamoylenko V.D.
dc.contributor.authorSieber H.
dc.contributor.authorShchukin D.
dc.contributor.authorTikhomirov V.O.
dc.contributor.authorTlisova I.
dc.contributor.authorToropin A.N.
dc.contributor.authorTrifonov, A. Yu.
dc.contributor.authorUlloa P.
dc.contributor.authorVasilishin B.I.
dc.contributor.authorVasquez Arenas G.
dc.contributor.authorVolkov P.V.
dc.contributor.authorVolkov, V. Yu.
dc.date.accessioned2024-07-09T19:53:10Z
dc.date.available2024-07-09T19:53:10Z
dc.date.issued2021-11-01
dc.descriptionIndexación: Scopus.
dc.description.abstractThe current most stringent constraints for the existence of sub-GeV dark matter coupling to Standard Model via a massive vector boson A′ were set by the NA64 experiment for the mass region mA′≲250 MeV, by analyzing data from the interaction of 2.84×1011 100-GeV electrons with an active thick target and searching for missing-energy events. In this work, by including A′ production via secondary positron annihilation with atomic electrons, we extend these limits in the 200-300 MeV region by almost an order of magnitude, touching for the first time the dark matter relic density constrained parameter combinations. Our new results demonstrate the power of the resonant annihilation process in missing energy dark-matter searches, paving the road to future dedicated e+ beam efforts.
dc.description.urihttps://journals-aps-org.recursosbiblioteca.unab.cl/prd/abstract/10.1103/PhysRevD.104.L091701
dc.identifier.citationPhysical Review D Volume 104, Issue 9 1 November 2021 Article number L091701
dc.identifier.doi10.1103/PhysRevD.104.L091701
dc.identifier.issn2470-0010
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/58382
dc.language.isoen_US
dc.publisherAmerican Physical Society
dc.rights.licenseATRIBUCIÓN 4.0 INTERNACIONAL
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subjectDark Matter
dc.subjectMuon
dc.subjectStandard Model
dc.titleImproved exclusion limit for light dark matter from e+e- annihilation in NA64
dc.typeArtículo
Archivos
Bloque original
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
PhysRevD.104.L091701.pdf
Tamaño:
608.43 KB
Formato:
Adobe Portable Document Format
Descargar
Bloque de licencias
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
license.txt
Tamaño:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descripción:
Descargar
Colecciones
FCE - Artículos de Revista