Journal article
Search for dark photons produced in 13 TeV pp collisions
- Abstract:
- Searches are performed for both promptlike and long-lived dark photons, A′, produced in proton-proton collisions at a center-of-mass energy of 13 TeV, using A′→μ+μ- decays and a data sample corresponding to an integrated luminosity of 1.6 fb-1 collected with the LHCb detector. The promptlike A′ search covers the mass range from near the dimuon threshold up to 70 GeV, while the long-lived A′ search is restricted to the low-mass region 214 < m(A′) < 350 MeV. No evidence for a signal is found, and 90% confidence level exclusion limits are placed on the γ-A′ kinetic-mixing strength. The constraints placed on promptlike dark photons are the most stringent to date for the mass range 10.6 < m(A′) < 70 GeV, and are comparable to the best existing limits for m(A′) < 0.5 GeV. The search for long-lived dark photons is the first to achieve sensitivity using a displaced-vertex signature.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Version of record, pdf, 932.2KB, Terms of use)
-
- Publisher copy:
- 10.1103/PhysRevLett.120.061801
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review Letters More from this journal
- Volume:
- 120
- Issue:
- 6
- Article number:
- 061801
- Publication date:
- 2018-02-08
- Acceptance date:
- 2017-12-01
- DOI:
- EISSN:
-
1079-7114
- ISSN:
-
0031-9007
- Keywords:
- Pubs id:
-
pubs:743496
- UUID:
-
uuid:fb403038-322a-442a-b33d-f2bbba10936b
- Local pid:
-
pubs:743496
- Source identifiers:
-
743496
- Deposit date:
-
2018-02-24
Terms of use
- Copyright holder:
- CERN
- Copyright date:
- 2018
- Notes:
- © CERN on behalf of the LHCb collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. A full list of authors and funders is available in the full text pdf.
- Licence:
- CC Attribution (CC BY)
If you are the owner of this record, you can report an update to it here: Report update to this record