Searches are performed for both promptlike and long-lived dark photons, A, produced in proton-proton collisions at a center-of-mass energy of 13 TeV. These searches look for A→μ+μ-decays using a data sample corresponding to an integrated luminosity of 5.5 fb-1 collected with the LHCb detector. Neither search finds evidence for a signal, and 90% confidence-level exclusion limits are placed on the γ-A kinetic mixing strength. The promptlike A search explores the mass region from near the dimuon threshold up to 70 GeV and places the most stringent constraints to date on dark photons with 214

Search for A →μ+μ-Decays

Calabrese R.;Capriotti L.;Fiorini M.;Giugliano C.;Luppi E.;Minzoni L.;Pappalardo L. L.;Skiba I.;Tomassetti L.;
2020

Abstract

Searches are performed for both promptlike and long-lived dark photons, A, produced in proton-proton collisions at a center-of-mass energy of 13 TeV. These searches look for A→μ+μ-decays using a data sample corresponding to an integrated luminosity of 5.5 fb-1 collected with the LHCb detector. Neither search finds evidence for a signal, and 90% confidence-level exclusion limits are placed on the γ-A kinetic mixing strength. The promptlike A search explores the mass region from near the dimuon threshold up to 70 GeV and places the most stringent constraints to date on dark photons with 214
2020
Aaij, R.; Abellan Beteta, C.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Aidala, C. A.; Aiola, S.; Ajaltouni, Z.; Akar, S.; Albicocco, P.;...espandi
File in questo prodotto:
File Dimensione Formato  
PhysRevLett.124.041801.pdf

accesso aperto

Descrizione: Full text editoriale
Tipologia: Full text (versione editoriale)
Licenza: Creative commons
Dimensione 1.44 MB
Formato Adobe PDF
1.44 MB Adobe PDF Visualizza/Apri

I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2422912
Citazioni
  • ???jsp.display-item.citation.pmc??? 2
  • Scopus 165
  • ???jsp.display-item.citation.isi??? 115
social impact