Probing the explanation of the muon (g-2) anomaly and thermal light dark matter with the semi-visible dark photon channel

Vista sencilla de ítem
dc.contributor.authorCazzaniga, C.
dc.contributor.authorOdagiu, P.
dc.contributor.authorDepero, E.
dc.contributor.authorMolina Bueno, L.
dc.contributor.authorAndreev, Yu. M.
dc.contributor.authorBanerjee, D.
dc.contributor.authorBernhard, J.
dc.contributor.authorBurtsev, V.E.
dc.contributor.authorCharitonidis, N.
dc.contributor.authorChumakov, A.G.
dc.contributor.authorCooke, D.
dc.contributor.authorCrivelli, P.
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.authorGirod, S.
dc.contributor.authorGninenko, S.N.
dc.contributor.authorHösgen, 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.authorMatveev, V.A.
dc.contributor.authorMikhailov, Yu. V.
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.authorShchukin, D.
dc.contributor.authorSieber, H.
dc.contributor.authorTikhomirov, V.O.
dc.contributor.authorTlisova, I.V.
dc.contributor.authorTlisov, D.A.
dc.contributor.authorToropin, A.N.
dc.contributor.authorTrifonov, A. Yu.
dc.contributor.authorVasilishin, B.I.
dc.contributor.authorArenas, G. Vasquez
dc.contributor.authorVolkov P.V.
dc.contributor.authorVolkov, V. Yu.
dc.contributor.authorUlloa P.
dc.date.accessioned2025-04-07T20:54:41Z
dc.date.available2025-04-07T20:54:41Z
dc.date.issued2021-10
dc.descriptionIndexación: Scopus.
dc.description.abstractWe report the results of a search for a new vector boson (A′) decaying into two dark matter particles χ1χ2 of different mass. The heavier χ2 particle subsequently decays to χ1 and an off-shell Dark Photon A′ ∗→ e+e-. For a sufficiently large mass splitting, this model can explain in terms of new physics the recently confirmed discrepancy observed in the muon anomalous magnetic moment at Fermilab. Remarkably, it also predicts the observed yield of thermal dark matter relic abundance. A detailed Monte-Carlo simulation was used to determine the signal yield and detection efficiency for this channel in the NA64 setup. The results were obtained re-analyzing the previous NA64 searches for an invisible decay A′→ χχ¯ and axion-like or pseudo-scalar particles a→ γγ. With this method, we exclude a significant portion of the parameter space justifying the muon g-2 anomaly and being compatible with the observed dark matter relic density for A′ masses from 2me up to 390 MeV and mixing parameter ε between 3 × 10 - 5 and 2 × 10 - 2. © 2021, The Author(s).
dc.description.urihttps://link-springer-com.recursosbiblioteca.unab.cl/article/10.1140/epjc/s10052-021-09705-5
dc.identifier.citationEuropean Physical Journal C, Volume 81, Issue 10, October 2021, Article number 959
dc.identifier.doi10.1140/epjc/s10052-021-09705-5
dc.identifier.issn1434-6044
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/63999
dc.language.isoen
dc.publisherSpringer Science and Business Media Deutschland GmbH
dc.rights.licenseAttribution 4.0 International CC BY 4.0 Deed
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectDark Matter
dc.subjectMuon
dc.subjectStandard Model
dc.titleProbing the explanation of the muon (g-2) anomaly and thermal light dark matter with the semi-visible dark photon channel
dc.typeArtículo
Archivos
Bloque original
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
Cazzaniga_Probing_the_explanation.pdf
Tamaño:
756.25 KB
Formato:
Adobe Portable Document Format
Descripción:
TEXTO COMPLETO EN INGLÉS
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