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EPS-HEP 2025

6–11 Jul 2025
PALAIS DU PHARO, Marseille, France
Europe/Paris timezone

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Session

Poster T05 (QCD and Hadronic Physics)

9 Jul 2025, 18:23
Espace 1000

Espace 1000

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  1. 590. Accessing Three-Body Dynamics with p–d and Λ–d Correlations in pp Collisions at 13.6 TeV with ALICE
    Anton Albert Riedel (TUM)
    09/07/2025, 18:23
    T05 - QCD and Hadronic Physics
    Poster

    Femtoscopic correlations between hadrons provide valuable insight into the short-range dynamics of hadronic interactions, with significant implications for fundamental physics and astrophysical phenomena. The composition of neutron stars depends on the interplay between two- and three-body forces involving nucleons and hyperons. Knowledge about the latter is scarce, mainly derived from...

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  2. 505. Measurement of associated production of electrons and muons from heavy-flavour decays in pp collisions with ALICE
    Maolin ZHANG (LPCA)
    09/07/2025, 18:23
    T05 - QCD and Hadronic Physics
    Poster

    Measurements of the production of open heavy-flavour hadrons in high-energy heavy-ion collisions provide unique access to the transport properties of heavy quarks (charm and beauty) in the quark-gluon plasma (QGP). Charm and beauty measurements in small collision systems, such as proton–proton (pp) and proton–Pb (p–Pb) collisions, serve as a crucial test of perturbative quantum chromodynamics...

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  3. 862. Observation of the decay eta_c -> gamma gamma at BESIII
    Zhijun Li (Sun Yat-sen University)
    09/07/2025, 18:23
    T05 - QCD and Hadronic Physics
    Poster

    Using $(2712.4 \pm 14.3) \times 10^{6}$ $\psi(3686)$ events collected with the BESIII detector at the BEPCII collider, the decay $\eta_c \to \gamma\gamma$ in $J/\psi \to \gamma\eta_c$ is observed. We determine the product branching fraction $\mathcal{B}(J/\psi \to \gamma \eta_c) \times \mathcal{B}(\eta_c \to \gamma\gamma) = (5.23 \pm 0.26_{\text{stat.}} \pm 0.30_{\text{syst.}}) \times...

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  4. 702. Transverse-Spin Dependent Azimuthal Asymmetries in Drell-Yan at COMPASS
    Malgorzata Niemiec (University of Warsaw)
    09/07/2025, 18:23
    T05 - QCD and Hadronic Physics
    Poster

    The study of transverse-spin dependent azimuthal asymmetries in the Drell-Yan process provides crucial insights into the spin-dependent structure of nucleons. In combination with semi-inclusive deep inelastic scattering, it provides a key test of the restricted universality of transverse-momentum dependent parton distribution functions, which predict that the Sivers and Boer–Mulders functions...

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