@article{15174227ecea4e9a9cb351c5e7fedb3e,
title = "Search for Invisible Decays of a Dark Photon Produced in e+e- Collisions at B a B ar",
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′ through the process e+e-→γA′; A′→invisible. Such particles, referred to as {"}dark photons,{"} 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′ to e+e- in the mass range mA′≤8 GeV. In particular, our limits exclude the values of the A′ coupling suggested by the dark-photon interpretation of the muon (g-2)μ anomaly, as well as a broad range of parameters for the dark-sector models.",
author = "\{B a B ar Collaboration\} and Lees, \{J. P.\} and V. Poireau and V. Tisserand and E. Grauges and A. Palano and G. Eigen and Brown, \{D. N.\} and M. Derdzinski and A. Giuffrida and Kolomensky, \{Yu G.\} and M. Fritsch and H. Koch and T. Schroeder and C. Hearty and Mattison, \{T. S.\} and McKenna, \{J. A.\} and So, \{R. Y.\} and Blinov, \{V. E.\} and Buzykaev, \{A. R.\} and Druzhinin, \{V. P.\} and Golubev, \{V. B.\} and Kravchenko, \{E. A.\} and Onuchin, \{A. P.\} and Serednyakov, \{S. I.\} and Skovpen, \{Yu I.\} and Solodov, \{E. P.\} and Todyshev, \{K. Yu\} and Lankford, \{A. J.\} and Gary, \{J. W.\} and O. Long and Eisner, \{A. M.\} and Lockman, \{W. S.\} and \{Panduro Vazquez\}, W. and Chao, \{D. S.\} and Cheng, \{C. H.\} and B. Echenard and Flood, \{K. T.\} and Hitlin, \{D. G.\} and J. Kim and Miyashita, \{T. S.\} and P. Ongmongkolkul and Porter, \{F. C.\} and M. R{\"o}hrken and Z. Huard and Meadows, \{B. T.\} and Pushpawela, \{B. G.\} and Sokoloff, \{M. D.\} and L. Sun and Smith, \{J. G.\} and Lange, \{D. J.\}",
note = "Publisher Copyright: {\textcopyright} 2017 American Physical Society.",
year = "2017",
month = sep,
day = "28",
doi = "10.1103/PhysRevLett.119.131804",
language = "English (US)",
volume = "119",
journal = "Physical review letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "13",
}