Conveners
BSM IV
- Da Liu (ITP, CAS/EPFL)
Many theories beyond the Standard Model predict new phenomena which decay to quarks. Light-quarks are of particular interest at the LHC since new phenomena produced in parton collisions are likely to produce final states with (at least) two partons. On the other hand, b- and top-quarks offer great potential to reduce the Standard Model background and improve sensitivity to new physics models...
Collider searches for the top partner mainly focuses on its decay to the SM weak gauge bosons, top quark, and the Higgs boson. However, it is possible that the top partner decay into other particles resulting in new decay topologies. To this end, we consider top partner that decays via non-standard decay modes in light of the current experimental searches conducted at the LHC. In particular,...
A selection of new results on searches new physics with unconventional signatures with the CMS experiment will be presented. The analyses are performed using proton-proton collision data recorded with the CMS detector at a center-of-mass energy of 13 TeV using a part or a whole set of Run 2 dataset.
Several theories predict dark matter to be a part of a larger dark sector of particles and forces. These dark sector particles, such as dark photons, may interact very weakly with standard model particles resulting in several distinct signatures in the high energy pp collision events at the LHC. This talk presents recent results from CMS on dark sector searches using full Run II data collected...
The LHC search strategies for leptoquarks (LQs) that couple dominantly to a top quark are different than for the ones that couple mostly to the light quarks. In this talk, I will discuss the LHC phenomenology of the LQs that can decay to a top quark and a charged lepton giving rise to a resonance system of a boosted top quark and a high-pT lepton. I will consider all possible LQ models within...
LQs are hypothetical particles which can emerge from the unification of quarks and leptons in the Pati-Salam model. LQs also exist in grand unified theories and extended technicolor models. Under the Standard Model (SM) representation, there are twelve types of LQs, six of them are scalar, while the other six are vector type of LQs. We consider the scalar LQ $\tilde{R}_2$ charged as (3,2,1/6)...
We present results from searches for resonances with enhanced couplings to third generation quarks, based on proton-proton collision data at a centre-of-mass energy of 13 TeV recorded by CMS. The signatures include single and pair production of vector-like quarks and heavy resonances decaying to third generation quarks. A wide range of final states, from multi-leptonic to entirely hadronic is...
CMS has recently submitted results for a search for disappearing tracks, updated to include the full Run 2 LHC data set. The disappearing track signature would be produced by long-lived charged particles that decay within the volume of the silicon tracker, and is identified as an isolated track with no associated hits in the muon detectors, little energy deposited in the calorimeters, and...
