Jan Hajer
27/09/2018, 14:00
Particle Phenomenology
We explore the potential to test weakly coupled New Physics in heavy ion collisions. We find that the data from heavy ion collisions at the HL-LHC can yield constraints that are only an order of magnitude weaker than those expected from proton-proton collisions for generic parameter choices in well-motivated New Physics scenarios, and that they may even achieve the same sensitivity in some...
Mr
Oleh Fedkevych
(Institute of Theoretical Physics, Münster)
27/09/2018, 14:20
Particle Phenomenology
In spite of the recent progress in both theoretical and experimental studies many aspects of $\textit{multiple parton interactions}$ (MPI) still require a detail investigation. In particular, $\textit{double parton scattering}$ (DPS) processes can play a dominant role for some specific kinematic regions of multi-jet production, especially in $\textit{proton-nucleus}$ (pA) collisions where...
Prof.
Mikhail Barabanov
(JINR)
27/09/2018, 14:37
Particle Phenomenology
The spectroscopy of charmonium-like mesons with masses above the 2mD open charm threshold has been full of surprises and remains poorly understood [1]. The currently most compelling theoretical descriptions of the mysterious XYZ mesons attribute them to hybrid structure with a tightly bound cc\bar diquark [2] or cq(cq')\bar tetraquark [3 - 5] core that strongly couples to S-wave DD\bar...
Mr
Frederic Dreyer
(Oxford)
27/09/2018, 14:57
Particle Phenomenology
Lund diagrams, a representation of the phase space within jets,
have long been used in discussing parton showers and
resummations. We point out here that they can also serve as a
powerful tool for experimentally characterising the radiation
pattern within jets. We briefly comment on some of their
analytical properties and highlight their scope for constraining
Monte Carlo simulations. We...
Simon Braß
(Theoretial Particle Physics - University Siegen)
27/09/2018, 15:17
Particle Phenomenology
`WHIZARD` is a multi-purpose event generator for hadron and lepton colliders.
Support for lepton beam spectra (`CIRCE1` and `CIRCE2`), polarization, initial-state radiated photons and the equivalent-photon approximation make `WHIZARD` suitable for lepton-collider physics simulations.
We have added support for `Pythia 8` on an event-per-event basis, enabling the transformation from the hard...