Journées de Rencontre Jeunes Chercheur·se·s 2025

Session

Hadronic Physics

2 déc. 2025, 17:25

Présidents de session

Hadronic Physics

• Benjamin Audurier (CEA)

Hadronic Physics

• Benjamin Audurier (CEA)

Hadronic Physics

• Benjamin Audurier (CEA)

41. Session overview

Benjamin Audurier (CEA)

02/12/2025 17:25

28. Experimental study of the strong interaction with the spectrometer ALERT and CLAS at JLab

Félix TOUCHTE CODJO (PHE/JLab-EIC)

02/12/2025 17:55

Hadronic Physics

The ALERT experiment aims to advance our understanding of the nuclear structure in terms of quarks and gluons by precisely measuring the electroproduction of a real photon through the interaction with a nuclear target such as the Helium-4. This process referred as the Deeply Virtual Compton Scattering (DVCS) gives us access to the tomography of quarks inside the nucleus. The achievement of...

8. b-jet tagging in p-p with Boosted Decision Trees with the ALICE experiment

CLEMENT LOTTEAU

03/12/2025 09:00

Hadronic Physics

My PhD thesis is the measurement of beauty production in
proton-proton and Pb-Pb collisions with the ALICE experiment at the CERN LHC and my talk will focus on a crucial part in the study of b-jet production: b-jet tagging.

I will compare two methods for b-jet tagging: the Track Counting method which relies on impact parameter significance, and Boosted Decision Trees (a machine learning...

13. First measurement of the DVCS beam spin asymmetry in the Sullivan process

Elouan Ferrand (DPhN/CEA Saclay)

03/12/2025 09:25

Hadronic Physics

Deeply Virtual Compton Scattering (DVCS) is a powerful tool to investigate the internal structure of hadrons in terms of Generalized Parton Distributions (GPDs). The Sullivan process, involving the exchange of a virtual pion from the proton’s meson cloud, offers a unique opportunity to access the three-dimensional structure of the pion at high energies. Since the pion plays a central role in...

50. First steps towards detection of the Bc meson in Pb-Pb collisions with the ALICE detector

Paul Veen (Paris-Saclay/CEA)

03/12/2025 09:50

Hadronic Physics

The Quark–Gluon Plasma (QGP) is a deconfined state of matter consisting of quarks and gluons, theorized to have existed during the earliest moments after the Big Bang. Hadronisation refers to the process by which quarks combine to form composite particles known as hadrons. Studying how hadronisation occurs within the QGP provides valuable insights into how the first particles in our Universe...

16. Transverse-momentum fraction of strange particles in mini-jets in pp collisions at the LHC with ALICE

Lang XU

03/12/2025 10:45

Hadronic Physics

One of the most intriguing findings from high-energy collisions is strangeness enhancement, which has motivated numerous studies aimed at uncovering its origin. ALICE has previously measured the production rates of (multi-)strange particles in high-energy jets in pp and p–Pb collisions to probe the hadronization mechanism in small systems. In this talk, the average transverse-momentum fraction...

68. Measurement of Υ(nS) and prompt/non-prompt J/ψ fraction at forward rapidity in pp collisions at √sNN = 13.6 TeV with ALICE & Tuning of detector response and noise in MC simulations

Stanislas Lambert

03/12/2025 11:10

Hadronic Physics

The quark-gluon plasma (QGP) is a state of matter at high temperatures and/or high baryon density where quarks and gluons are asymptotically free and not confined in hadrons anymore. Experimentally, it can be produced
during heavy ion collisions using large accelerator facilities such as the LHC. The ALICE experiment focuses on characterizing the QGP properties using
the aforementioned...

65. Hadronic talk #6

Stanislas Lambert