{"work":{"id":"c65e2910-bb55-49da-b0c2-c1dd91448b7d","openalex_id":null,"doi":null,"arxiv_id":"1406.2980","raw_key":null,"title":"Search for a dark photon in e+e- collisions at BABAR","authors":null,"authors_text":"J","year":2014,"venue":"hep-ex","abstract":"Dark sectors charged under a new Abelian force have recently received much attention in the context of dark matter models. These models introduce a light new mediator, the so-called dark photon (A'), connecting the dark sector to the Standard Model. We present a search for a dark photon in the reaction e+e- -> gamma A', A'-> e+e-, mu+mu- using 514 fb-1 of data collected with the BABAR detector. We do not observe a significant signal and we set 90% confidence level upper limits on the mixing strength between the photon and dark photon at the level of 10^-4 - 10^-3 for dark photon masses in the range 0.02 - 10.2 GeV. We further constrain the range of the parameter space favored by interpretations of the discrepancy between the calculated and measured anomalous magnetic moment of the muon.","external_url":"https://arxiv.org/abs/1406.2980","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-07-10T13:27:05.780960+00:00","pith_arxiv_id":"1406.2980","created_at":"2026-05-11T11:46:23.080155+00:00","updated_at":"2026-07-10T13:27:05.780960+00:00","title_quality_ok":true,"display_title":"Search for a dark photon in e+e- collisions at BABAR","render_title":"Search for a dark photon in e+e- collisions at BABAR"},"hub":{"state":{"tier_text":"hub","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":10,"external_cited_by_count":null},"tier":"hub","role_counts":[{"context_role":"baseline","n":2},{"context_role":"background","n":1}],"polarity_counts":[{"context_polarity":"baseline","n":2},{"context_polarity":"background","n":1}],"runs":{},"summary":{},"graph":{},"authors":[]}}