Abstract
We point out that a distinctive monotop signature is present in natural supersymmetry scenarios when a scalar top quark and Higgsinos are almost mass degenerate. This signature originates from a supersymmetric counterpart of the process, i.e. . Unlike monojet signatures exploiting initial state radiation, this channel can be regarded as a clear signature of a light stop and Higgsinos, allowing a direct probe of the stop and neutralino sectors. The production rate of this channel largely depends on the up-type Higgsino components in the neutralinos while the stop sector is sensitive to angular distributions of the top-quark’s decay products. We develop an optimal search strategy to capture the supersymmetric process and find that a high luminosity LHC can probe the stop and Higgsino sectors with and . Additionally, we propose a kinematic variable with which one can measure the stop mixing in this channel.
4 More- Received 22 June 2016
DOI:https://doi.org/10.1103/PhysRevD.94.075009
© 2016 American Physical Society