@Article{BABARCollaborationLees_etal2017,
author="BABAR Collaboration (Lees, J. P. et al
and Martinez-Vidal, F.
and Oyanguren, A.",
title="Search for Invisible Decays of a Dark Photon Produced in e(+)e(-) Collisions at BABAR",
journal="Physical Review Letters",
year="2017",
publisher="Amer Physical Soc",
volume="119",
number="13",
pages="131804--7pp",
abstract="We search for single-photon events in 53 fb(-1) of e(+)e(-) collision data collected with the BABAR detector at the PEP-II B-Factory. We look for events with a single high-energy photon and a large missing momentum and energy, consistent with production of a spin-1 particle A{\textquoteright} through the process e(+)e(-) -> gamma A{\textquoteright}; A{\textquoteright} -> invisible. Such particles, referred to as {\textquoteleft}{\textquoteleft}dark photons,{\textquoteright}{\textquoteright} are motivated by theories applying a U(1) gauge symmetry to dark matter. We find no evidence for such processes and set 90{\%} confidence level upper limits on the coupling strength of A{\textquoteright} to e(+)e(-) in the mass range m(A{\textquoteright}) <= 8 GeV. In particular, our limits exclude the values of the A{\textquoteright} coupling suggested by the dark-photon interpretation of the muon (g -- 2)(mu) anomaly, as well as a broad range of parameters for the dark-sector models.",
optnote="WOS:000411996200004",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3315), last updated on Tue, 17 Oct 2017 12:38:58 +0000",
issn="0031-9007",
doi="10.1103/PhysRevLett.119.131804",
opturl="http://arxiv.org/abs/1702.03327",
opturl="https://doi.org/10.1103/PhysRevLett.119.131804",
archivePrefix="arXiv",
eprint="1702.03327",
language="English"
}