BOOST 2024 - 16th International Workshop on Boosted Object Phenomenology, Reconstruction, Measurements, and Searches at Colliders

Session

QCD

30 Jul 2024, 09:00

Palazzo Ducale (Genova, Italy)

25. Measurements of W and Z boson production in association with jets in ATLAS

Yoran Yeh

30/07/2024, 09:00

QCD

Talk

The production of W/Z bosons in association with light or heavy flavor jets or hadrons at the LHC provides an important test of perturbative QCD. In this talk, measurements by the ATLAS experiment probing the charm and beauty content of the proton are presented. Inclusive and differential cross-sections of Z boson production with at least one c-jet, or one or two b-jets are measured for events...

81. Jet physics at LHCb

Dr Davide Zuliani

30/07/2024, 09:20

QCD

Talk

LHCb is a spectrometer targeting the forward region of proton-proton collisions, focusing on a pseudo-rapidity range between 2 and 5. Due to its optimal reconstruction performance and its clean environment, LHCb is an excellent experiment to study jets and their substructure. In this contribution, the latest measurements on jets physics at LHCb are presented, with a focus on the latest...

61. Jet substructure measurements with CMS

Kaustuv Datta

30/07/2024, 09:40

QCD

Talk

Various measurements related to the study of jet substructure in proton collisions at 13 TeV with the CMS experiment are presented. Jet substructure measurements sensitive to the strong coupling are presented, namely the primary Lund jet plane and the energy-energy correlated. The measurements are motivated by their sensitivity to the strong coupling and present interesting experimental...

20. Jet substructure measurements in multijet production with the ATLAS experiment

Jingjing Pan

30/07/2024, 10:00

QCD

Talk

Jets, the collimated streams of hadrons resulting from the fragmentation of highly energetic quarks and gluons, are some of the most commonly observed radiation patterns in hadron collider experiments. The distribution of quantum chromodynamic (QCD) radiation within jets is determined by complex processes, the production of showers of quarks and gluons and their subsequent recombination into...

3. High-purity gluon jet showers using secondary Lund jet planes

Cristian Baldenegro Barrera (Sapienza Università di Roma (IT))

30/07/2024, 10:20

QCD

Talk

The Lund jet plane (LJP) is an observable introduced to better understand the radiation pattern of jets in terms of the jets-within-the-jets found with iterative Cambridge/Aachen declustering. The LJP is a two-dimensional representation of the phase space of $1\to 2$ branchings, where the logarithm of the relative transverse momentum ($k_t$) and the logarithm of the rapidity-azimuth distance...

43. One-loop gauge invariant amplitudes with a space-like gluon in hybrid kT-factorization

Alessandro Giachino

30/07/2024, 11:00

QCD

Talk

Particle physics has entered an era where high-precision calculations are required to compare theoretical predictions with experimental data. In this talk, I will describe a new method to compute the virtual contributions in $k_T$-factorization [1,2], called the auxiliary parton method. This method, which was already successfully applied at LO [3] to describe the forward-forward dijet...

45. Towards NNLL accurate parton showers

Jack Helliwell (University of Oxford)

30/07/2024, 11:20

QCD

Talk

Parton showers are immensely flexible tools that are currently undergoing significant development in terms of their logarithmic accuracy, first to next-to-leading logarithmic (NLL) and more recently towards next-to-NLL (NNLL) accuracy. These improvements should make them significantly more powerful tools for precision collider physics, including jet substructure studies. I will present recent...

48. Energy Correlators Beyond Angles

Samuel Alipour-fard (MIT, Center for Theoretical Physics)

30/07/2024, 11:40

Novel Techniques

Talk

In this talk, we introduce energy-weighted observable correlations (EWOCs): generalizations of the energy-energy correlator (EEC) which use subjets to characterize a wide variety of correlations between collective degrees of freedom in high-energy particle collisions. EWOCs use subjets to produce a manifestly infrared and collinear safe extension of the EEC, which probes energy-weighted...

35. Heavy flavour jet substructure for heavy ion collisions

Chang Wu (Technion)

30/07/2024, 12:00

Heavy Ions

Talk

In this talk, we will present a theoretical framework for studying heavy flavor jet substructure for dense QGP medium based on the factorised picture between vacuum-like and medium-induced radiations, based on arXiv:2312.15560 and ongoing works. We studied the $z_g$ distribution for heavy flavor, i.e. bottom and charm quark, jets propagating through the dense QCD medium. However, unlike the...