H2020Индивидуална стипендия2021–2023

JetT · Jet Tomography

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2021-10-01 → 2023-09-30
Финансиране от ЕС: 172 932 €
Участници: 1
Схема: MSCA-IF

Линиите свързват координатора с партньорите.

Накратко на български

Взаимодействието между високоенергийни частици (джетове) и кварк-глуонната плазма при сблъсъци на тежки йони се анализира чрез нови математически модели. Това помага да се разбере как частиците губят енергия и как се движи гъстата материя в ускорители като LHC.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Jet Tomography

In this project, I propose to construct a first-principle description of the interaction between hadronic jets and the evolving nuclear matter created in experiments on heavy-ion collisions (HIC). The idea of using energetic particles for medium tomography has attracted significant attention in recent years. However, all current theoretical approaches are either lacking sensitivity to the medium motion and in-medium fluctuations or are based on empirical models. Combining the machinery of perturbative Quantum Chromodynamics (QCD) with insights from phenomenological models, here I construct a comprehensive description of the jet-matter interactions which will allow describing the process taking place at such large scale facilities as the LHC and RHIC. The main scientific objectives of the JetT project read: 1: Derive the effects of the medium motion and hydrodynamic gradients on how energetic quarks and gluons lose their energy penetrating the quark-gluon plasma (QGP); 2: Construct recursive relation for energy loss amplitudes including the effects of medium motion and resum the corresponding perturbative series; 3: Consider how the medium response to propagating quarks and gluons;

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

The nuclear matter produced in heavy-ion collisions starts as a far-from-equilibrium system with an energy density so high, that the quarks and gluons normally confined inside protons and neutrons, form a continuous medium. Soon after, this medium thermalizes into a nearly ideal liquid known as the quark-gluon plasma (QGP) which exhibits pronounced collectivity, indicating that its constituents are not confined. Studying the multi-phase evolution of this hot and dense medium is particularly interesting, since it allows to access such fundamental properties of nature as the colour confinement and the origin of complex matter in the universe. However, experimental studies of this system are highly non-trivial since the information about the QGP evolution is entangled in correlations of energy and momenta of billions of particles. An opportunity to overcome this issue is provided by hadronic jets -- sprays of particles produced by energetic quarks or gluons leaving the QGP fireball. These energetic particles penetrate the matter, lose their energy, and have the structure of the final jet modified. Thus, jets essentially X-ray the QGP fireball providing a picture of its real-time evolution. The idea of using energetic particles for tomography of the medium has attracted significant attention in recent years. However, all current theoretical approaches are either lacking sensitivity to the medium motion and in-medium fluctuations or are based on empirical models. In the JetT project I will utilize recent advancements in first principle QCD and jet theory to develop a description of the jet-medium interaction sensitive to medium motion effects. This will provide much needed tool to study the evolution of the matter produced in HIC bringing the idea of jet tomography on completely new level.

Оригинален текст от CORDIS (на английски).

Участници

UNIVERSIDAD DE SANTIAGO DE COMPOSTELA · Santiago De CompostelaКоординаторИспания