8. Miniworkshop difrakce a ultraperiferních srážek

Session

ALICE

Sep 16, 2025, 4:50 PM

ČVUT Děčín

Conveners

ALICE

• Karla Žertová

98. Hadronic interaction studies at the LHC to understand Neutron Stars

Raffaele Del Grande (Czech Technical University)

9/16/25, 4:50 PM

Neutron stars are among the most compact and dense objects in the Universe. Their central densities can exceed nuclear density by several times. Under such extreme conditions, hyperons (i.e., baryons containing strange quarks) are expected to be produced for energetic reasons. According to state-of-the-art stellar models, however, the presence of hyperons should significantly reduce the...

92. Flow of heavy flavor hadrons in Run 3 data

Alexian Marc Lejeune (Czech Technical University)

9/16/25, 5:10 PM

Collectivity in small systems can be summarized by a simple question : how can a collision that produces on average only a dozen of particles be described so well by hydrodynamics?

In this contribution, we explore this question by the studies of the flow of heavy-flavor hadrons through two-particle long-range correlations using ALICE experiment's forward detectors.

A focus will be done...

91. Study of quantum interference using $\rho^0$ photoproduction

Jakub Juračka (FNSPE CTU)

9/16/25, 5:30 PM

The presented study investigates exclusive $\rho^0$ photoproduction in ultraperipheral collisions. Emphasis is placed on quantum interference effects arising from the indistinguishability of the photon source in symmetric heavy-ion collisions. Together with the linear polarisation of the quasi-real photons facilitating the interaction, they produce observable modifications in the transverse...

93. Incoherent J/ψ production

Vendulka Humlová (CTU FNSPE)

9/16/25, 5:50 PM

In quantum chromodynamics, hadrons at high energies reach a dynamic balance between gluon splitting and recombination, a regime referred to as saturation. Diffractive photonuclear production of J/ψ vector mesons offers a powerful probe of the gluon distribution inside hadrons. The Mandelstam variable t, which represents the momentum transfer, provides access to the hadron structure in the...

94. Pushing the limits with $\gamma\gamma \to \tau^+ \tau^-$ reactions: one way to search for Beyond Standard Model physics experimentally

Roman Lavicka

9/16/25, 6:10 PM

The anomalous magnetic moment of the tau lepton ($a_{\tau}$) is a sensitive probe for the search for deviations from the Standard Model predictions and thus for new physics. This study investigates the feasibility of measuring $a_{\tau}$ using ultra-peripheral collisions (UPCs) at the LHC, where photon-photon interactions ($\gamma\gamma \to \tau^+ \tau^-$) produce tau lepton pairs. In this...