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arXiv · 1103.0799

Light dark forces at flavor factories

L. Barzè
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Abstract

SuperB experiment could represent an ideal environment to test a new U (1) symmetry related to light dark forces candidates. A promising discovery channel is represented by the resonant production of a boson U, followed by its decay into lepton pairs. Beyond approximations adopted in the literature, an exact tree level calculation of the radiative processes $e+ e- \rightarrow γ, U \rightarrow μ^+ μ^- γ, e^+ e^- γ$ and corresponding QED backgrounds is performed, including also the most important higher-order corrections. The calculation is implemented in a release of the generator BabaYaga@NLO useful for data analysis and interpretation. The distinct features of U boson production are shown and the statistical significance is analysed.

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L. Barzè. 2011-03-26. Light dark forces at flavor factories. https://doi.org/10.1088/1742-6596%2F335%2F1%2F012077

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