Banerjee, D;
Burtsev, VE;
Chumakov, AG;
Cooke, D;
Crivelli, P;
Depero, E;
Dermenev, AV;
... Ulloa, P; + view all
(2019)
Dark Matter Search in Missing Energy Events with NA64.
Physical Review Letters
, 123
(12)
, Article 121801. 10.1103/PhysRevLett.123.121801.
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Abstract
A search for sub-GeV dark matter production mediated by a new vector boson A', called a dark photon, is performed by the NA64 experiment in missing energy events from 100 GeV electron interactions in an active beam dump at the CERN SPS. From the analysis of the data collected in the years 2016, 2017, and 2018 with 2.84 x 10^{11} electrons on target no evidence of such a process has been found. The most stringent constraints on the A' mixing strength with photons and the parameter space for the scalar and fermionic dark matter in the mass range ≲ 0.2 GeV are derived, thus demonstrating the power of the active beam dump approach for the dark matter search.
| Type: | Article |
|---|---|
| Title: | Dark Matter Search in Missing Energy Events with NA64 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.123.121801 |
| Publisher version: | https://doi.org/10.1103/PhysRevLett.123.121801 |
| Language: | English |
| Additional information: | © 2019 American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/). |
| Keywords: | Particle dark matter, Hypothetical gauge bosons, Targets, Gravitation - Cosmology & Astrophysics, Particles & Fields |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10083833 |
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