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Title: Search for a muonic dark force at BaBar

Journal Article · · Physical Review D
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Many models of physics beyond the standard model predict the existence of new Abelian forces with new gauge bosons mediating interactions between "dark sectors" and the standard model. We report a search for a dark boson Z' coupling only to the second and third generations of leptons in the reaction e+e-→μ+μ-Z',Z'→μ+μ- using 514 fb-1 of data collected by the BABAR experiment. No significant signal is observed for Z' masses in the range 0.212-10 GeV. Lastly, limits on the coupling parameter g' as low as 7×10-4 are derived, leading to improvements in the bounds compared to those previously derived from neutrino experiments.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Contributing Organization:
BaBar Collaboration
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1393063
Alternate ID(s):
OSTI ID: 1264800
Journal Information:
Physical Review D, Vol. 94, Issue 1; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 103 works
Citation information provided by
Web of Science

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Cited By (9)

Purely flavor-changing Z ′ bosons and where they might hide journal May 2017
Loophole in Search Beyond Grossman—Nir Bound journal January 2017
Discovering true muonium at LHCb journal September 2019
Probing Muonphilic Force Carriers and Dark Matter at Kaon Factories journal January 2020
Purely flavor-changing Z' bosons and where they might hide text January 2016
A light complex scalar for the electron and muon anomalous magnetic moments text January 2018
Non-Standard Neutrino Interactions and Neutral Gauge Bosons text January 2018
Neutrino Tridents at DUNE text January 2019
Dark matter interactions with muons in neutron stars text January 2019

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