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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 $e+ e- \rightarrow \gamma, U \rightarrow \mu^+ \mu^- \gamma, e^+ e^- \gamma$ 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

Topics:
High Energy Physics - Phenomenology, High Energy Physics - Experiment

Year: 2011

DOI identifier: 10.1088/1742-6596/335/1/012077

OAI identifier:
oai:arXiv.org:1103.0799

Provided by:
arXiv.org e-Print Archive

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