-
Komal Tauqeer30/07/2024, 16:20Poster
Identifying particles that form jets in the CMS detector is a crucial part of many physics analyses. It has generally proven quite difficult to infer the charge of the originating particles. In this poster, we demonstrate a novel method to discriminate between Lorentz-boosted W+, W-, and Z boson jets. In order to do so, we have designed a specialized Dynamic Graph Convolutional Neural Network...
Go to contribution page -
Claudio Muselli (Rulex Innovation Labs)30/07/2024, 16:20Poster
Most research in high-energy physics nowadays begins with data. In recent years, effectively managing an increasing volume of data has become crucial for most publications. This holds true not only for high-energy physics but also for a wide range of activities, including healthcare, economics, computing, and business.
Traditionally, researchers analyze data by writing extensive code in...
Go to contribution page -
Andrius Vaitkus (Department of Physics and Astronomy, University College London)30/07/2024, 16:20Poster
The precise measurement of the jet energy and mass scales are a crucial input to many physics measurements that use the proton-proton collision data recorded by the ATLAS detector at the LHC. The energy determination of quark jets, which originate from bottom quarks, is challenging as, for example, these types of jets can contain leptonic heavy-flavour decays into a charged lepton and an...
Go to contribution page -
Steffi Bower (CMS)30/07/2024, 16:20Poster
In our search using CMS data for low mass, boosted pseudoscalar (Ma<15GeV) decays to b-jet pairs and τ pairs predicted by the Two Higgs Doublet Model + Singlet (2HDM+S), we find that the b-jets tend to merge when run through the anti-kT jet reconstruction algorithm with R parameter of 0.4 (AK4). Standard CMS b taggers are not optimized for this signal. We look to discriminate this topology by...
Go to contribution page -
Dr Hannah Bossi30/07/2024, 16:20Heavy IonsPoster
Recently, the projected N-point energy correlators (ENCs) have seen a resurgence of interest for hadronic collisions at RHIC and the LHC to probe vacuum QCD. In this talk, we will show that the full three-point energy-energy-energy correlation (EEEC) function can be useful for studying the shape of energy flow within jets. In vacuum, it has been shown that these correlators elucidate the...
Go to contribution page -
Lata Panwar (Paris LPNHE)30/07/2024, 16:20Poster
We present a generic approach that deals with jet constituents to derive the jet energy scale (JES) uncertainty. It uses single-particle E/p response measurements obtained from 13 TeV Run 2 LHC data from proton-proton collisions. The E/p method offers a higher level of precision compared to the traditional pT-balance method, but, is in good agreement with it. Both methods are combined to...
Go to contribution page -
Daniele Atzori (Università degli Studi di Milano)30/07/2024, 16:20Poster
This research discusses topics in the field of Quantum CromoDynamics and high energy physics. We consider an electron-positron scattering process and introduce a so-called superinclusive observable, suggested to us by Giorgio Parisi. This observable allows one to study the energy flow of an event due to QCD final-state radiation. The aim of the research is to give a theoretical prediction of...
Go to contribution page -
Kevin Thomas Greif (University of California, Irvine)30/07/2024, 16:20Poster
The identification of top quark decays, known as top tagging, is a crucial component in many measurements and searches at the Large Hadron Collider (LHC). Recently machine learning techniques have greatly improved the performance of top tagging algorithms. This poster presents the performance of several machine learning based jet tagging methods. In particular the performance of a Lund jet...
Go to contribution page -
Sebastian Rutherford Colmenares (Cavendish Laboratory, University of Cambridge)30/07/2024, 16:20Poster
This poster presents the reconstruction of missing transverse momentum (pTmiss) in proton-proton collisions, in Run-2 and Run-3 data-taking at the ATLAS experiment. This is a challenging task involving many detector inputs, combining fully calibrated electrons, muons, photons, hadronically decaying τ-leptons, hadronic jets, and soft activity from remaining tracks. Several pTmiss 'working...
Go to contribution page -
Gabriele Milella (DESY)30/07/2024, 16:20Poster
Identifying boosted hadronic top quarks is a major challenge in the CMS physics program, both in Standard Model measurements and searches for new phenomena. Many excellent tools are available to identify wide-angle jets with top quark flavor. However, the intermediate regime between resolved and highly boosted jets is poorly covered. In recent years, CMS has introduced HOTVR, a variable...
Go to contribution page -
Vilius Cepaitis (Departement de Physique Nucleaire et Corpusculaire, Universite de Geneve)30/07/2024, 16:20Poster
Pileup, or the presence of multiple independent proton-proton collisions within the same bunch-crossing, has been critical to the success of the LHC, allowing for the production of enormous proton-proton collision datasets. However, the typical LHC physics analysis only considers a single proton-proton collision in each bunch crossing; the remaining pileup collisions are viewed as an...
Go to contribution page
Choose timezone
Your profile timezone: