DocumentCode :
3611792
Title :
On Detection of Narrow Angle 
Pairs From Dark Photon Decays
Author :
Dermenev, A.V. ; Donskov, S.V. ; Gninenko, S.N. ; Kuleshov, S.B. ; Matveev, V.A. ; Myalkovskiy, V.V. ; Peshekhonov, V.D. ; Poliakov, V.A. ; Savenkov, A.A. ; Tikhomirov, V.O. ; Zhukov, I.A.
Author_Institution :
Inst. for Nucl. Res., Moscow, Russia
Volume :
62
Issue :
6
fYear :
2015
Firstpage :
3283
Lastpage :
3287
Abstract :
A class of models of a “dark sector” of particles consider new very weak interaction between the ordinary and dark matter transmitted by U´(1) gauge bosons A´ (dark photons) mixing with ordinary photons. If such A´s exist, they could be searched for in a light-shining-through-a-wall experiment in a high energy electron beam from the CERN SPS. A proposed search project suggests detection of the e+e- pairs produced in the A ´ -> e+e - decays with a very small opening angle. Coordinate detectors based on the thin-wall drift tubes with a minimal material budget and a two-hit resolution for e+ and e- tracks separated by more than 0.5 mm are considered as an option for detecting such events.
Keywords :
dark matter; drift chambers; CERN SPS; U(1) gauge bosons; coordinate detectors; dark photon decays; high-energy electron beam; thin-wall drift tubes; Dark energy; Electromagnetics; Electron tubes; Gas detectors; Radiation detectors; Spatial resolution; ${rm e}!+!{rm e} - $
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.2015.2499794
Filename :
7347477
Link To Document :
