Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/119410
Title: | Search for a muonic dark force at BaBar |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Partícules (Matèria) Matèria fosca (Astronomia) Particles Dark matter (Astronomy) |
Issue Date: | 19-Jul-2016 |
Publisher: | American Physical Society |
Abstract: | Many models of physics beyond the standard model predict the existence of new Abelian forces with new gauge bosons mediating interactions between "dark sectors" and the standard model. We report a search for a dark boson Z ′ coupling only to the second and third generations of leptons in the reaction e + e − → μ + μ − Z ′ , Z ′ → μ + μ − using 514 fb − 1 of data collected by the BABAR experiment. No significant signal is observed for Z ′ masses in the range 0.212-10 GeV. Limits on the coupling parameter g ′ as low as 7 × 10 − 4 are derived, leading to improvements in the bounds compared to those previously derived from neutrino experiments. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.94.011102 |
It is part of: | Physical Review D, 2016, vol. 94, num. 1, p. 11102-1-11102-7 |
URI: | http://hdl.handle.net/2445/119410 |
Related resource: | https://doi.org/10.1103/PhysRevD.94.011102 |
ISSN: | 1550-7998 |
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 | |
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669776.pdf | 1.58 MB | Adobe PDF | View/Open |
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