Searching for a dark photon with DarkLight
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Lab. for Nuclear Science
Here, we describe the current status of the DarkLight experiment at Jefferson Laboratory. DarkLight is motivated by the possibility that a dark photon in the mass range 10 to 100 MeV/c2 could couple the dark sector to the Standard Model. DarkLight will precisely measure electron proton scattering using the 100 MeV electron beam of intensity 5 mA at the Jefferson Laboratory energy recovering linac incident on a windowless gas target of molecular hydrogen. We will detect the complete final state including scattered electron, recoil proton, and e+e- pair. A phase-I experiment has been funded and is expected to take data in the next eighteen months. The complete phase-II experiment is under final design and could run within two years after phase-I is completed. The DarkLight experiment drives development of new technology for beam, target, and detector and provides a new means to carry out electron scattering experiments at low momentum transfers.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- Contributing Organization:
- DarkLight Collaboration
- Grant/Contract Number:
- AC05-06OR23177
- OSTI ID:
- 1340193
- Alternate ID(s):
- OSTI ID: 1556133
- Report Number(s):
- JLAB-ACC-16-2397; DOE/OR/23177-4023; PII: S0168900216308129
- Journal Information:
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 865; Conference: Latin-American Conference on High Energy Physics: Particles and Strings II, Havana (Cuba), 11-15 Jul 2016; ISSN 0168-9002
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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