Search for A′→ μ+μ- decays
Searches are performed for both prompt-like and long-lived dark photons,A′,produced in proton-proton collisions at a center-of-mass energy of 13TeV. Thesesearches look forA′→μ+μ−decays using a data sample corresponding to anintegrated luminosity of 5.5fb−1collected with the LHCb d...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
December 22, 2019
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| In: |
Physical review letters
Year: 2019, Jahrgang: 124, Heft: 4 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.124.041801 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://dx.doi.org/10.1103/PhysRevLett.124.041801 Verlag, lizenzpflichtig, Volltext: http://arxiv.org/abs/1910.06926 
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| Verfasserangaben: | LHCb collaboration |
MARC
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| 245 | 1 | 0 | |a Search for A′→ μ+μ- decays |c LHCb collaboration |
| 246 | 3 | 3 | |a Search for A′→ mu + mu - decays |
| 246 | 3 | 3 | |a Search for A′ into mu plus mu minus decays |
| 264 | 1 | |c December 22, 2019 | |
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| 500 | |a Im Titel sind "+", "-" hochgestellt | ||
| 500 | |a Gesehen am 10.03.2021 | ||
| 500 | |a R. Aaij, F. Archilli, S. Bachmann, D. Berninghoff, M. Borsato, S. Braun, A. Comerma-Montells, P. d’Argent, M. Dziewiecki, D. Gerick, J.P. Grabowski, X. Han, S. Hansmann-Menzemer, J. Hu, M. Kecke, R. Kopecna, B. Leverington, H. Malygina, J. Marks, S. Neubert, A. Piucci, N. Skidmore, S. Stemmle, U. Uwer, A. Zhelezov [und weitere] (LHCb Collaboration) | ||
| 520 | |a Searches are performed for both prompt-like and long-lived dark photons,A′,produced in proton-proton collisions at a center-of-mass energy of 13TeV. Thesesearches look forA′→μ+μ−decays using a data sample corresponding to anintegrated luminosity of 5.5fb−1collected with the LHCb detector. Neither searchfinds evidence for a signal, and 90% confidence-level exclusion limits are placedon theγ–A′kinetic-mixing strength. The prompt-likeA′search explores themass region from near the dimuon threshold up to 70GeV, and places the moststringent constraints to date on dark photons with 214< m(A′).740MeVand10.6< m(A′).30GeV. The search for long-livedA′→μ+μ−decays placesworld-leading constraints on low-mass dark photons with lifetimesO(1) ps. | ||
| 534 | |c 2019 | ||
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