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19 April 2024 |
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Probing Leptophilic Dark Sectors at Electron Beam-Dump Facilities | | L. Marsicano
; M. Battaglieri
; A. Celentano
; R. De Vita
; Yi-Ming Zhong
; | | Date: |
10 Dec 2018 | | Abstract: | Medium-energy electron beam-dump experiments provide an intense sources of
secondary muons. These particles can be used to search for muon-coupling light
dark scalars that may explain the $(g-2)_mu$ anomaly. We applied this idea to
SLAC E137 experiment deriving new exclusion limits and evaluated the expected
sensitivity for the planned Jefferson Lab BDX experiment (in case of null
result report). The calculation is based on numerical simulations that include
a realistic description of secondary muons generation in the dump, dark scalar
production, propagation, and decay, and, finally, the decay products
(electrons, positrons, or photons) interaction with the detector. For both
experiments, exclusion limits were extended to cover a broader area in the
scalar-to-muon coupling vs. scalar mass parameter space. This study
demonstrates that electron beam-dump experiments have an enhanced sensitivity
to new physics in processes that are usually studied using proton beams. | | Source: | arXiv, 1812.3829 | | Services: | Forum | Review | PDF | Favorites | |
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