56 citations · 214 across the 7 of their papers we have counts for
6 papers · 1 filter
Tracking Down the Top Quark Forward-Backward Asymmetry with Monotops
Abhishek Kumar, John N. Ng, Andrew Spray +1
We revisit the possibility that the top quark forward-backward asymmetry arises from the on-shell production and decay of scalar top partners to top-antitop pairs with missing tran…
Top-flavored dark matter and the forward-backward asymmetry
Abhishek Kumar, Sean Tulin
We propose a simple model where dark matter (DM) carries top flavor and couples to the Standard Model through the top quark within a framework of minimal flavor violation (MFV). To…
Very Light Scalar Top Quarks at the LHC
Karol Krizka, Abhishek Kumar, David E. Morrissey
A very light scalar top (stop) superpartner is motivated by naturalness and electroweak baryogenesis. When the mass of the stop is less than the sum of the masses of the top quark…
Kinetically-Enhanced Anomaly Mediation
Abhishek Kumar, David E. Morrissey, Andrew Spray
We investigate a modification of anomaly-mediated supersymmetry breaking (AMSB) with an exotic U(1)_x gauge sector that can solve the tachyonic slepton problem of minimal AMSB scen…
The Dark Side of the Electroweak Phase Transition
Subinoy Das, Patrick J. Fox, Abhishek Kumar +1
Recent data from cosmic ray experiments may be explained by a new GeV scale of physics. In addition the fine-tuning of supersymmetric models may be alleviated by new O(GeV) states…
Neutrino Mass, Sneutrino Dark Matter and Signals of Lepton Flavor Violation in the MRSSM
Abhishek Kumar, David Tucker-Smith, Neal Weiner
We study the phenomenology of mixed-sneutrino dark matter in the Minimal R-Symmetric Supersymmetric Standard Model (MRSSM). Mixed sneutrinos fit naturally within the MRSSM, as the…