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Title: Dark photons and displaced vertices at the MUonE experiment

Journal Article · · Physical Review. D.

MUonE is a proposed experiment designed to measure the hadronic vacuum polarization contribution to muon g–2 through elastic μ–e scattering. As such, it employs an extremely high-resolution tracking apparatus. We point out that this makes MUonE also a very promising experiment to search for displaced vertices from light, weakly interacting new particles. We demonstrate its potential by showing how it has excellent sensitivity to dark photons in the mass range 10 MeV≤mA'≤100 MeV and kinetic mixing parameter 10–5≤ε⁢e≤10–3, through the process μ±e→μ±eA' followed by A'→e+e.

Research Organization:
Rutgers Univ., Piscataway, NJ (United States)
Sponsoring Organization:
USDOE Office of Science (SC); Israel Science Foundation; National Science Foundation (NSF); USDOE
Grant/Contract Number:
SC0010008; 751/19; 2020-785
OSTI ID:
1972233
Alternate ID(s):
OSTI ID: 2419967
Journal Information:
Physical Review. D., Vol. 107, Issue 9; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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