A Sudakov resummation of dark-sector radiation converts the divergent M_X^2 distribution in invisible dark photon production into an integrable line shape and shifts recast BaBar limits by up to about 14%.
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Dark sector radiation corrections to invisible dark photon production: beyond fixed order
A Sudakov resummation of dark-sector radiation converts the divergent M_X^2 distribution in invisible dark photon production into an integrable line shape and shifts recast BaBar limits by up to about 14%.