Conveners
Heavy Quarks (including top and flavour physics): Parallel 1A
- Fabrizio Grosa (CERN)
- Philipp Böer
Heavy Quarks (including top and flavour physics): Parallel 1B
- Fabrizio Grosa (CERN)
- Philipp Böer
Heavy Quarks (including top and flavour physics): Parallel 2A
- Philipp Böer
Heavy Quarks (including top and flavour physics): Parallel 2B
- Philipp Böer
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Josef Daniel Sorenson (University of New Mexico (US))09/09/2025, 09:23
This presentation will highlight recent advances in heavy-flavour physics achieved with Run-2 data. It will focus on the latest results in heavy-flavour hadron production and decay measurements, as well as the spectroscopy of exotic heavy-flavour states. Key topics include the most precise determination of the B0 meson lifetime, measurements of charmed meson production cross-sections, and...
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Tiantian Cheng (Fudan University)09/09/2025, 09:45
Open heavy-flavour hadrons are one of the key diagnostic tools available to study the dense, hot, and strongly interacting matter formed in heavy-ion collisions. The charm and beauty quarks are produced mainly in hard parton scatterings at the early stages of the collisions. Measurements of their production in proton–proton (pp) collisions are an important test of perturbative Quantum...
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guiot benjamin (Universidad frederico santa maria)09/09/2025, 10:07
We present a comprehensive study of heavy-hadron production, including $D$ and $B$ mesons, heavy baryons, and the $B_c$ meson. Our calculations are based on the $k_t$-factorization and scale-dependent fragmentation functions, completing the program of implementing this formalism within a variable-flavor-number scheme, as initiated in Phys. Rev.D 104 (2021) 9 094038. Special emphasis is placed...
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Kai Yi (Nanjing Normal University (CN))09/09/2025, 11:00
We present a comprehensive study of near-threshold structures in the J/\psi J/\psi mass spectrum using the fully reconstructed J/\psi J/\psi \rightarrow 4\mu final state, based on proton-proton collision data at \sqrt{s} = 13 and 13.6 TeV collected by the CMS experiment. With approximately four times more J/\psi pair candidates compared to the previous Run 2 dataset, the combined data sample...
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Yevgeny Kats (Ben-Gurion University)09/09/2025, 11:30
While spin correlations and spin entanglement have been measured for top quarks at the LHC, they remain unexplored for other quark flavors. We propose analysis strategies for measuring spin correlations, entanglement, and Bell nonlocality in $b \bar b$ samples using the partial preservation of the spin information in $\Lambda_b$ baryons from bottom quark fragmentation. We find that certain...
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Charles Joseph Naim09/09/2025, 12:00
This contribution presents a review of cold nuclear matter (CNM) effects [1] in hadron-nucleus collisions, with a focus on hard probes such as Drell–Yan pairs, heavy flavor, and quarkonium production. By examining yield modifications as functions of transverse momentum and rapidity, we aim to disentangle the underlying QCD mechanisms — including gluon saturation, nuclear PDFs, and parton...
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IVAN ZEMLIAKOV11/09/2025, 14:00
In this talk, we present our results on $\eta_c\gamma$ and $\chi_c\gamma$ photoproduction in middle- and high-energy experiments, which can be studied in ultraperipheral kinematics at the LHC and the future EIC. Due to the onset of saturation in the small-$x$ region, the interaction of heavy quarks with the gluonic field of a nuclear target is described in the framework of the Color Glass...
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Anna Maria Stasto (Pennsylvania State University (US))11/09/2025, 14:22
Ultraperipheral heavy-ion collisions (UPCs) offer a clean way to study photon–nucleus interactions at high energy. In this talk, we present the first next-to-leading order predictions for inclusive $D^0$ production in Pb–Pb UPCs at the LHC, obtained with the new G$\gamma$A–FONLL framework. The framework relies on FONLL (Fixed-Order Next-to-Leading Logarithm) to model heavy-quark production in...
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Mr Mohammed Ghani (University of Warwick)11/09/2025, 14:45
The top-quark mass is one of the key fundamental parameters of the Standard Model that must be determined experimentally. Its value has an important effect on many precision measurements and tests of the Standard Model. The Tevatron and LHC experiments have developed an extensive program to determine the top quark mass using a variety of methods. In this contribution, the top quark mass...
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Dr Upalaparna Banerjee (JGU Mainz)11/09/2025, 15:07
It is well known that jet cross sections at hadron colliders receive double-logarithmic corrections, also referred to as super-leading logarithms. These corrections arise from two Glauber gluon interactions between the colliding partons. For processes involving massive final states, such as top-antitop production, additional sources of double logarithms emerge due to non-trivial singularities...
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Mr Buddhadeb Mondal (Czech Academy of Sciences (CZ))11/09/2025, 16:00
The exceptionally large dataset collected by the ATLAS detector at the highest proton-proton collision energies provided by the LHC enables precision testing of theoretical predictions using an extensive sample of top quark events. Measurements of the inclusive top quark production rates at the LHC have reached a precision of several percent and test advanced Next-to-Next-to-Leading Order...
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Beatriz Ribeiro Lopes (CERN)11/09/2025, 16:23
Top quark physics plays a central role in the LHC physics program, offering unique sensitivity to the Standard Model and potential new physics through precision measurements and rare processes. This talk will present recent results on top quark production and properties, with an emphasis on QCD aspects such as cross sections, differential measurements, and modeling improvements. Highlights...
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Sara Ditsch11/09/2025, 16:45
Physical observables described by 2 → 3 scattering amplitudes have been a focal point of intense research in recent years. In particular, amplitudes with massive internal propagators are phenomenologically relevant as they represent the bottleneck of obtaining next-to-next-to-leading order (NNLO) QCD corrections to a variety of different processes, and at the same time pose interesting...
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Chiara Savoini11/09/2025, 17:07
The production of top quarks at high-energy colliders plays a pivotal role in testing the Standard Model (SM) and in probing possible signs of new physics. In hadronic collisions, the primary source of top-quark events within the SM is top-quark pair ($t \bar t$) production and, since the top quark is unstable, the signature is almost exclusively characterised by two bottom quarks and the...
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Charles Joseph Naim
In this talk, we present our extension of the concept of maximal quantum entanglement from proton structure to jet fragmentation in proton-proton collisions, establishing a connection between jet fragmentation functions and charged hadron multiplicity [1]. This relationship is tested using ATLAS data from the Large Hadron Collider, showing excellent agreement. As the first study to apply...
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Dr Maxim Nefedov (IJClab, Orsay)
In the talk, the effects of high-energy resummation in QCD, arising in cross sections of production of heavy quarkonia at hadron and lepton-hadron colliders will be discussed. The resolution of perturbative instability of some observables in inclusive hadroproduction of eta-c mesons [1], inclusive photoproduction of J/psi [2] and exclusive photoproduction of J/psi [3] at NLO with the help of...
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