TY - GEN
T1 - Searching for an invisible dark photon with DarkLight
AU - Kahn, Yonatan
PY - 2013/12/23
Y1 - 2013/12/23
N2 - The DarkLight experiment at Jefferson Lab is designed to search for a new U(1) vector boson A' in the mass range 10-100 MeV through its decay A′→e+e-. We will show that DarkLight is also sensitive to an A' decaying to invisible final states, but because of QED backgrounds, such a search is only feasible with photon detection. Surprisingly, pileup can be mitigated with a cut on the sign of the missing invariant mass-squared. We give the DarkLight reach for the invisible search assuming a nominal two-month running time, and compare to constraints from anomalous magnetic moments and rare kaon decays.
AB - The DarkLight experiment at Jefferson Lab is designed to search for a new U(1) vector boson A' in the mass range 10-100 MeV through its decay A′→e+e-. We will show that DarkLight is also sensitive to an A' decaying to invisible final states, but because of QED backgrounds, such a search is only feasible with photon detection. Surprisingly, pileup can be mitigated with a cut on the sign of the missing invariant mass-squared. We give the DarkLight reach for the invisible search assuming a nominal two-month running time, and compare to constraints from anomalous magnetic moments and rare kaon decays.
KW - dark forces
UR - http://www.scopus.com/inward/record.url?scp=84890545014&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84890545014&partnerID=8YFLogxK
U2 - 10.1063/1.4829392
DO - 10.1063/1.4829392
M3 - Conference contribution
AN - SCOPUS:84890545014
SN - 9780735411913
T3 - AIP Conference Proceedings
SP - 131
EP - 134
BT - Workshop to Explore Physics Opportunities with Intense, Polarized Electron Beams at 50-300 MeV
T2 - Workshop to Explore Physics Opportunities with Intense, Polarized Electron Beams at 50-300 MeV
Y2 - 14 March 2013 through 16 March 2013
ER -