Searching for a new force at VEPP-3
2012
We propose an experiment to search for a new gauge boson, A$^\prime$, in $e^+e^-$ annihilation by means of a positron beam incident on a gas hydrogen target internal to the VEPP-3 storage ring. The search method is based on a missing mass spectra in the reaction $e^+e^-\rightarrow \gamma$ A$^\prime$. It allows observation of the A$^\prime$ signal independently of its decay modes and life time. The projected result of this experiment corresponds to an upper limit on the square of coupling constant $|f_{e\text{A}{^\prime}}|^2=1\cdot 10^{-8}$ with a signal-to-noise ratio of five to one at an A$^\prime$ mass of 15 MeV.
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