Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/132907
Title: | Search for Hidden-Sector Bosons in B0→K*0μ+μ− Decays |
Author: | Badalov, Alexey Calvo Gómez, Míriam Garrido Beltrán, Lluís Gascón Fora, David Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste Olloqui, Eduardo Rives Molina, Vicente José Vilasis-Cardona, Xavier LHCb Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 16-Oct-2015 |
Publisher: | American Physical Society |
Abstract: | A search is presented for hidden-sector bosons, χ , produced in the decay B 0 → K ∗ ( 892 ) 0 χ , with K ∗ ( 892 ) 0 → K + π − and χ → μ + μ − . The search is performed using p p -collision data corresponding to 3.0 fb − 1 collected with the LHCb detector. No significant signal is observed in the accessible mass range 214 ≤ m ( χ ) ≤ 4350 MeV , and upper limits are placed on the branching fraction product B ( B 0 → K ∗ ( 892 ) 0 χ ) × B ( χ → μ + μ − ) as a function of the mass and lifetime of the χ boson. These limits are of the order of 1 0 − 9 for χ lifetimes less than 100 ps over most of the m ( χ ) range, and place the most stringent constraints to date on many theories that predict the existence of additional low-mass bosons. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.115.161802 |
It is part of: | Physical Review Letters, 2015, vol. 115, num. 16, p. 161802 |
URI: | http://hdl.handle.net/2445/132907 |
Related resource: | https://doi.org/10.1103/PhysRevLett.115.161802 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) |
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