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Search for Majorana neutrinos in B−→π+μ−μ− decays

A search for heavy Majorana neutrinos produced in the B−→π+μ−μ− decay mode is performed using 3 fb−1 of integrated luminosity collected with the LHCb detector in pp collisions at center-of-mass energies of 7 and 8 TeV at the LHC. Neutrinos with masses in the range 250 to 5000 MeV and lifetimes from...

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Main Authors: Aaij, Roel (Author) , Bachmann, Sebastian (Author) , Bien, Alexander (Author) , De Cian, Michel (Author) , Di Canto, Angelo (Author) , Dordei, Francesca (Author) , Färber, Christian (Author) , Gersabeck, Evelina (Author) , Grillo, Lucia (Author) , Hansmann-Menzemer, Stephanie (Author) , Jäger, Andreas (Author) , Kreplin, Katharina (Author) , Krocker, Georg Alexander (Author) , Leverington, Blake (Author) , Linn, Christian (Author) , Marks, Jörg (Author) , Meißner, Marco (Author) , Nikodem, Thomas (Author) , Seyfert, Paul (Author) , Stahl, Sascha (Author) , Tilburg, Jeroen van (Author) , Uwer, Ulrich (Author) , Vesterinen, Mika (Author) , Wandernoth, Sebastian (Author) , Wiedner, Dirk (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 3 April 2014
In: Physical review letters
Year: 2014, Volume: 112, Issue: 13
ISSN:1079-7114
DOI:10.1103/PhysRevLett.112.131802
Online Access:Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.112.131802
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.112.131802
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Author Notes:R. Aaij et al. (LHCb Collaboration)
Description
Summary:A search for heavy Majorana neutrinos produced in the B−→π+μ−μ− decay mode is performed using 3 fb−1 of integrated luminosity collected with the LHCb detector in pp collisions at center-of-mass energies of 7 and 8 TeV at the LHC. Neutrinos with masses in the range 250 to 5000 MeV and lifetimes from zero to 1000 ps are probed. In the absence of a signal, upper limits are set on the branching fraction B(B−→π+μ−μ−) as functions of neutrino mass and lifetime. These limits are on the order of 10−9 for short neutrino lifetimes of 1 ps or less. Limits are also set on the coupling between the muon and a possible fourth-generation neutrino.
Item Description:Im Titel erscheinen die Zeichen - und + stets hochgestellt. Es werden die griechischen Buchstaben pi und my verwendet
The LHCb Collaboration: R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov [und 667 weitere]
Gesehen am 15.09.2020
Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.112.131802

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