The DarkLight Experiment: A Precision Search for New Physics at Low Energies
Abstract
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/c 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. The complete final state including scattered electron, recoil proton, and e+e- pair will be detected. 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.
Keywords
Cite
@article{arxiv.1412.4717,
title = {The DarkLight Experiment: A Precision Search for New Physics at Low Energies},
author = {J. Balewski and J. Bernauer and J. Bessuille and R. Corliss and R. Cowan and C. Epstein and P. Fisher and D. Hasell and E. Ihloff and Y. Kahn and J. Kelsey and R. Milner and S. Steadman and J. Thaler and C. Tschalaer and C. Vidal and S. Benson and J. Boyce and D. Douglas and P. Evtushenko and C. Hernandez-Garcia and C. Keith and C. Tennant and S. Zhang and R. Alarcon and D. Blyth and R. Dipert and L. Ice and G. Randall and B. Dongwi and N. Kalantarians and M. Kohl and A. Liyanage and J. Nazeer and M. Garcon and R. Cervantes and K. Dehmelt and A. Deshpande and N. Feege and B. Surrow},
journal= {arXiv preprint arXiv:1412.4717},
year = {2014}
}
Comments
Whitepaper submitted to Town Meeting on Fundamental and Symmetries and Neutrinos, O'Hare airport, Chicago, IL