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This workshop aims to bring together several communities studying the dynamics of jets in Heavy Ion Collision experiments, the response of the matter to these probes, and the matter evolution itself. These communities study different but highly entangled subjects and would benefit from the combined developments and new opportunities to utilize the available tomographic tools jointly. The main goals of the workshop are to review and analyze the recent experimental and theoretical results, discuss the short term needs of each sub-field to be prioritized in the near future, and facilitate the cross-talk between them.

The main questions to be addressed in this workshop are the following:

• Could we utilize the existing theories of probe-matter interactions to access the real-time matter evolution and its differential properties?
• Can we provide a self-consistent description for the hard probes in QCD matter produced in HIC during all the stages of its evolution?
• Which novel measurements would be needed to extract the information about the evolution of the underlying nuclear matter?
• What is the current status of the tomographic toolkit for different hard probes on the experimental side?
• Can the new developments in jet quenching and initial stages physics help understand the evolution of jets in smaller systems?

The workshop will take place in Trento (Italy) between the 12th and the 16th of February, 2024. Applications will be open until the 19th of January.

INDICO page: https://indico.ectstar.eu/event/198/

The Pheno group is involved in the organization of this event. In addition, several of our members (André Cordeiro, Guilherme Milhano, João Gonçalves, João Silva, Nuno Olavo and Pablo Guerrero) will attend and deliver talks.

Marco Leitão, MEFT student at IST, is our most recent MSc. His thesis, QGP effects on Energy Correlators inside jets’ was defended on 6 December. Marco’s work, supervised by Guilherme Milhano, examined the unique potential of energy correlators to isolate the effect of the QGP response to the passage of a jet and to determine the critical temperature for existence of QGP. The jury members were Mário Pimenta, Liliana Apolinário, and Guilherme Milhano.

Congratulations to Master Marco!

This workshop is the 14th edition of a series of workshops that have been previously organized in Poland (2009), Slovakia (2010 and 2015), France (2011), Portugal (2012, 2016 and 2017), Bosnia and Herzegovina (2013 and 2014 ), Serbia (2018), Austria (2019) , Poland (2020) and Italy (2022).

The workshop covers diverse aspects of QCD:

• (i) QCD at low energies: excited hadrons, new resonances, glueballs, multi-quarks. In the recent years, many exotic hadrons have been discovered in the experimental facilities, like the LHCb, BESIII, Belle, entering in a new era of hadrons out of the conventional quark model.
• (ii) QCD at high temperatures and large densities: heavy-ion collisions, jets, diffraction, hadronisation, quark-gluon plasma, holography, color-glass condensate, compact stars, applications to astrophysics.
• (iii) QCD phase diagram from the lattice, and other theoretical advancements.

Emphasis is placed on new developments in theory as well as the current experimental status. Scientific atmosphere, various discussions about different topics in QCD, active participation of many young researchers is encouraged, and there have always a nice, diverse, and friendly environment, characterizing the previous editions and also represented the goals for the new edition.

Both calls for registration and abstracts are open. Deadline: November 15, 2023.

For more information, see https://www.benasque.org/2024eqcd/

Two of our PhD students, André Cordeiro and Nuno Olavo, will attend and deliver talks.

The integration of Artificial Intelligence (AI) into the realm of fundamental science is witnessing an unprecedented surge. However, there are many obstacles to be overcome. Foremost among these challenges is the precise determination of confidence intervals for predictions; a task that demands the meticulous consideration of inherent uncertainties and inter-correlations within a large amount of inputs.

This workshop aims to bring together experts from fundamental science, computer science and statistics to synthesize current knowledge on the theme of uncertainties in the context of applying artificial intelligence to fundamental physics research. It will take place from Monday 27th of November till Tuesday 2nd of December in Paris, between SCAI (on Jussieu campus) and the Institut Pascal Paris-Saclay. 

Registration is free (but mandatory); it will be limited to 120 on-site participants. Remote full-time or part-time participation will be possible, although the focus will be on-site. The registration form allows to specify on-site participation with some granularity. The zoom link will be distributed to participants only.

Both calls for registration and abstracts are open. Registration deadline: November 15, 2023. Abstract submission deadline: November 10, 2023. Talks are expected to be given in person, with few exceptions.

Limited support is possible; please inquire to rousseau AT ijclab.in2p3.fr.

INDICO page: https://indico.in2p3.fr/event/30589/

MPI@LHC 2023 is the 14th International Conference on Multiple Parton Interactions at the LHC. This workshop brings together the world’s leading experts from theory and LHC experiments to discuss the latest progress on the physics relevant to Multiple Partonic Interactions. This year it will take place in person, at the University of Manchester, from the 20th to the 24th of November.

The conference will cover the following topics, divided in working groups:

• WG1: Minimum Bias, Underlying Event and Monte Carlo generators
• WG2: Double Parton Scattering
• WG3: High multiplicities and small systems
• WG4: Diffraction and small-x
• WG5: Heavy Ion Collisions

Both calls for registration and abstracts are open. Registration and abstract submission deadline: October 27, 2023

INDICO page: https://indico.cern.ch/event/1281679/

One of our researchers, Guilherme Milhano, will contribute with a talk.

Much of the theoretical uncertainty in realistic QCD calculations comes from the inaccurate model description of non-perturbative (np) effects in the low energy regime. These np effects present themselves in lepton-lepton, lepton-hadron and hadron-hadron collisions, with substantial overlap in their phase space along with a distinct set of contributions for each system. Manifestation of the np effects exists in the initial state of the parton/nucleon distributions and also persists in the final state via target fragmentation and hadronization.

The goal of this workshop (the second in the series) is to aggregate current knowledge related to np effects across systems in order to brainstorm novel measurements at the EIC to investigate the fundamental transition from p-np QCD, utilizing collinear energy flows of jets, heavy flavor (HF) hadrons and target fragments. This workshop brings together theorists and experimentalists towards envisioning a collective framework, conceptually and via observables, that are aimed at understanding np QCD.

The scientific program of this 4-day workshop is focused on Jet substructure, Heavy-Flavor, Initial State & Spin Physics and EIC Prospects. This event may be attended in person, or virtually using Zoom, from the 6th to the 9th of November.

The Pheno group is involved in the organization of this event. Link to INDICO page: https://indico.cfnssbu.physics.sunysb.edu/event/110/