Conveners
Jets and QCD at high scales: 1
- Deepak Kar (University of the Witwatersrand (ZA))
Jets and QCD at high scales: 1.5
- Deepak Kar (University of the Witwatersrand (ZA))
Jets and QCD at high scales: 2
- yacine mehtar-tani (IPhT CEA/Saclay)
Precise and detailed QCD calculations are crucial for high-energy collider phenomenology. This very often entails a matching of (detailed) Monte-Carlo event generators and (precise) fixed-order calculations.
This contribution discusses a next step in high-precision event generators: N3LO+PS matching within the T(hird) O(rder) M(atched) T(ransition) E(vents) scheme. Further, a non-parametric...
Several important processes and analyses at the LHC are sensitive to higher-order perturbative corrections beyond what can currently be calculated at fixed order. One important class of large logarithmic corrections are so-called high-energy logarithms which appear when the centre-of-mass energy of a QCD collision is much larger than the transverse momenta of the observed jets.
The effect of...
The presence of a non-baryonic Dark Matter (DM) component in the Universe is inferred from the observation of its gravitational interaction. If Dark Matter interacts weakly with the Standard Model (SM) it could be produced at the LHC. The ATLAS and CMS experiments have developed a broad search program for DM candidates, including resonance searches for the mediator which would couple DM to the...
This talk will be based on our recent work (arXiv:2105.03989 [hep-ph]) where we present a procedure to separate boosted Higgs bosons decaying into hadrons, from the background due to strong interactions. We employ the Lund jet plane to obtain a theoretically well-motivated representation of the jets of interest and we use the resulting images as the input to a convolutional neural network. In...
The physics of jet quenching, a generic denomination for the modifications of jets produced in the dense environment of an ultra-relativistic nucleus-nucleus collision, represents one of the main tools at our disposal to experimentally probe the quark-gluon plasma. In this talk, I will discuss recent theoretical breakthrough in our understanding of this physical phenomenon, within the...
Interactions of high-$p_{\rm{T}}$ partons with quark-gluon plasma (QGP) result in jet quenching, which is manifest by the suppression of high-$p_{\rm{T}}$ jet yields and the modification of jet substructure and di-jet acoplanarity distributions. Several jet quenching phenomena can be measured precisely over a wide range of jet $p_{\rm{T}}$ using semi-inclusive distributions of charged jets...
Jet Substructure measurements will be presented with some emphasis on inclusive observables in various specific phase space regions or for different signal processes. Measurements dealing with jet tagging techniques, including the use of multivariate techniques, their performance comparisons and specific use cases like top tagging will also be discussed.
