Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/133072
Title: | Search for Majorana Neutrinos in B−→π+μ−μ− Decays |
Author: | Badalov, Alexey Calvo Gómez, Míriam Camboni, Alessandro Comerma Montells, Albert Garrido Beltrán, Lluís Gascón Fora, David Graciani Díaz, Ricardo Graugés Pous, Eugeni Oyanguren Campos, Arantza de Picatoste Olloqui, Eduardo Potterat, Cédric Rives Molina, Vicente José Ruiz, Hugo (Ruiz Pérez) Ruiz Valls, Pablo Vilasis-Cardona, Xavier LHCb Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 3-Apr-2014 |
Publisher: | American Physical Society |
Abstract: | 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 p p 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. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.112.131802 |
It is part of: | Physical Review Letters, 2014, vol. 112, num. 13, p. 131802 |
URI: | http://hdl.handle.net/2445/133072 |
Related resource: | https://doi.org/10.1103/PhysRevLett.112.131802 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
645776.pdf | 351.63 kB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License