====== LPN13-087 New Exclusion Limits on Dark Gauge Forces from Proton Bremsstrahlung in Beam Dump Data ====== ^ LPN13-087 New Exclusion Limits on Dark Gauge Forces from Proton Bremsstrahlung in Beam Dump Data ^ |**J. Bluemlein and J. Brunner** | |** Phys. Lett. B731 320 2014 ** | |[[http://arxiv.org/abs/1311.3870|arXiv]] | | |