A5025504301- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Superconducting Materials and Applications
- Distributed and Parallel Computing Systems
- Particle Detector Development and Performance
Istituto Nazionale di Fisica Nucleare, Sezione di Genova
2022-2025
Genoa (Brazil)
2024
University of Genoa
2024
This report presents a short summary of the activities "Standard Model" working group for "Physics at TeV Colliders" workshop (Les Houches, France, 12-30 June, 2023).
Abstract We study hadronic jets that are tagged as heavy-flavoured, i.e. they contain either beauty or charm. In particular, we consider heavy-flavour have been groomed with the Soft Drop algorithm. order to achieve a deeper understanding of these objects, apply resummed perturbation theory initiated by massive quark and perform analytic calculations for two variables characterise jets, namely opening angle momentum fraction splitting passes Drop. compare our findings Monte Carlo...
A bstract Perturbative calculations for processes that involve heavy flavours can be performed in two approaches: the massive scheme and massless one. The former enables one to fully account heavy-quark kinematics, while latter allows resum potentially-large mass logarithms. Furthermore, schemes combined take advantage of virtues each them. Both supplemented by soft-gluon resummation. However matching between resummed is difficult, essentially because non-commutativity soft limits. In this...
Abstract Perturbative calculations for processes involving heavy flavours can be carried out using two approaches: the massive and massless schemes. These schemes also combined to leverage their respective strengths. Additionally, both frameworks supplemented by soft-gluon resummation. However, matching resummed across presents significant challenges, primarily due non-commutativity of soft small mass limits. The consistent resummation logarithms has been recently achieved at next-to-leading...
We present a comprehensive study of energy correlation functions and jet angularities for heavy-flavour QCD jets. In particular, we discuss the possibility using these observables to expose dead cone effect, i.e. suppression collinear radiation around massive quarks, investigate sensitivity different observable definitions presence quark masses. Our calculations are presented as all-order resummed predictions at next-to-leading-logarithmic accuracy, matched (partial) fixed-order results...
We provide a detailed analysis of event-shape observables, namely the energy correlation function and jet angularity, for heavy-flavor jets produced in electron-positron collisions, focusing on quantum chromodynamics (QCD) interactions. Using modern substructure techniques, we investigate dead-cone effect, where QCD radiation is suppressed around heavy quark within an angle proportional to its mass. Our achieves next-to-leading logarithmic accuracy, combined with fixed-order contributions,...
Observables involving heavy quarks can be computed in perturbative QCD two different approximation schemes: either the quark mass dependence is fully retained, or it retained only where needed to regulate collinear singularity. The schemes have advantages and drawbacks. In particular, known that structure of large logarithms arising from soft emissions approaches. We investigate origin this difference some detail, focussing on a few specific processes. show related non-commutativity...
Abstract We consider the fragmentation of heavy quarks into heavy-flavoured hadrons, specifically production charmed mesons in $$e^+e^-$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msup> <mml:mi>e</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mo>-</mml:mo> </mml:mrow> </mml:math> collisions, at different centre-of-mass energies. focus our attention on ratio moments $$D^{*+}$$ <mml:mmultiscripts> <mml:mi>D</mml:mi> <mml:mrow/> <mml:mo>∗</mml:mo>...
Perturbative calculations for processes involving heavy flavours can be carried out using two approaches: the massive and massless schemes. These schemes also combined to leverage their respective strengths. Additionally, both frameworks supplemented by soft-gluon resummation. However, matching resummed across presents significant challenges, primarily due non-commutativity of soft small mass limits. The consistent resummation logarithms has been recently achieved at next-to-leading...
We study hadronic jets that are tagged as heavy-flavoured, i.e. they contain either beauty or charm. In particular, we consider heavy-flavour have been groomed with the Soft Drop algorithm. order to achieve a deeper understanding of these objects, apply resummed perturbation theory initiated by massive quark and perform analytic calculations for two variables characterise jets, namely opening angle momentum fraction splitting passes Drop. compare our findings Monte Carlo simulations....
Processes involving heavy quarks can be computed in perturbation theory two different ways: we adopt a scheme which the mass of quark is considered only as regulator collinear divergences because fact that hard scale process far bigger or consider massive particle. Each picture has its own advantages and drawbacks: investigate differences between approaches with particular attention to soft logarithmic structure. We examine origin this difference, focusing on processes Higgs boson . Finally...
In this work we present a new approach to threshold resummation in processes with heavy quarks. particular will focus on the differential decay rate of color-singlet particle into $b \bar b$ pair and show how resum consistent way both logarithms mass flavor energy fraction. Within framework, match two different approaches existing literature resummation, main difference which is treated (5-flavor scheme vs 4-flavor scheme).
Perturbative calculations for processes that involve heavy flavours can be performed in two approaches: the massive scheme and massless one. The former enables one to fully account heavy-quark kinematics, while latter allows resum potentially-large mass logarithms. Furthermore, schemes combined take advantage of virtues each them. Both supplemented by soft-gluon resummation. However matching between resummed is difficult, essentially because non-commutativity soft limits. In this paper, we...
Observables involving heavy quarks can be computed in perturbative QCD two different approximation schemes: either the quark mass dependence is fully retained, or it retained only where needed to regulate collinear singularity. The schemes have advantages and drawbacks. In particular, known that structure of large logarithms arising from soft emissions approaches. We investigate origin this difference some detail, focussing on a few specific processes. show related non-commutativity...