Search for Vector-mediated Dark Matter at the LHC with Forward Proton Tagging

Gi-Chol Cho, Kimiko Yamashita, Miki Yonemura

We investigate the production of fermionic dark matter $\chi$ via $pp\to p\gamma p\to pj\chi \bar{\chi }X$ mediated by a leptophobic spin-1 particle, where one of the protons remains intact and i…