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Tobias Tsang (CERN)02/06/2025, 13:50
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Aaron Haarti (University of Helsinki)02/06/2025, 14:00
For the confined phase of pure SU(N) gauge theory, we generalize a method to produce a system that possesses two differently ordered phases simultaneously. Between these two ordered phases there naturally lies an interface which we call the order-order (o-o) interface. The interface is formed by placing a twist in the lattice. This twist creates a discontinuity in the measured Polyakov loop...
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Aatu Rajala02/06/2025, 14:30
Entanglement is a characteristic property of all quantum systems. Due to its close relation to correlations, entanglement measures can be used to study many interesting phenomena such as confinement. On the lattice, a group of entanglement measures, referred to as the Rényi entropies, can be computed with the replica trick. In recent years, we have seen significant progress on this front....
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Pietro Butti (Quantum Field Theory Center IMADA)02/06/2025, 15:00
Recent advances in algorithms and hardware have facilitated large-scale lattice studies of QCD-like theories, including the Corrigan-Ramond large-N limit of Yang-Mills coupled to a single fermion in the two-index antisymmetric representation, which provides a path to studying $\mathcal{N}=1$ SUSY Yang-Mills at large-N. In this talk, we explore the topological properties of gauge configurations...
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Mattias SJÖ (CPT, Aix-Marseille University)02/06/2025, 16:15
The HVP is a prime example of the synergy between lattice QCD and effective field theories, and of hadronic contributions to fundamentally non-hadronic processes like the muon $g-2$. It is a rich source of physics, even more so with the confidence and precision left behind now that the controversy surrounding its measurement is dying down.
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We bring the ChPT prediction for the HVP up to... -
Nils Hermansson Truedsson02/06/2025, 16:45
In this talk I will discuss electromagnetic finite-volume effects from the perspective of chiral perturbation theory, with particular emphasis on different QED prescriptions. The finite-volume effects associated to sea and valence quarks will additionally be separated through partial quenching. This is e.g. relevant for understanding volume dependence in QED-disconnected diagrams calculated on...
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Antonio Rago (University of Southern Denmark (DK))03/06/2025, 09:30
The Gradient Flow is a smoothing technique that has been studied for its properties in the field of renormalization. In combination with the short flow-time expansion, it provides a renormalization scheme in which hadronic matrix elements on the lattice evolve along the flow time, gradually removing UV divergences. In this renormalization scheme, some of lattice challenges—such as mixing with...
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Tobias Tsang (CERN)03/06/2025, 10:00
At a given statistic, reliable extractions of masses and amplitudes from Euclidean time correlation functions faces two challenges:
1) the accurate estimation of correlation matrices and
2) control over contamination of excited states that are not taken into account in the parameterisation of the data.We present a new and simple-to-use method which addresses both of these well-known...
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Matteo Di Carlo03/06/2025, 11:15
The study of neutral $D$-meson mixing provides a unique probe of long-distance effects in the charm sector, where Standard Model contributions are dominated by nonperturbative effects. In this talk, we present a recent proposal (arXiv:2504.16189) to extract the long-distance contribution to the $D^0-\bar{D}^0$ mixing amplitudes from Euclidean lattice correlation functions by means of spectral...
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Felix Benjamin Erben03/06/2025, 11:45
Hadron spectroscopy and the study of QCD resonances on the lattice have made significant progress in recent years. A key development is our recent calculation of the $\rho$ and $K^*$ resonances at physical quark masses using Domain-Wall Fermions. In this talk, I will present the details of this calculation, including our approach to estimating systematic uncertainties through an AIC-based...
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Nils Hermansson Truedsson03/06/2025, 14:00
In this brief overview I will talk about the phenomenological relevance of neutron beta decays and the current status. Particular focus will be put on the role of lattice QCD in future precision determinations of radiative corrections. This presentation is within the framework of a 'dream' project of NOLA.
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Pietro Butti (Quantum Field Theory Center IMADA)03/06/2025, 14:45
In the AI era, modern architectures achieve remarkable results that are reshaping how we do science, often relying on pragmatic principles that are typically poorly understood. Autoencoder technology is based on the concept of a latent space where hidden variables capture correlations in observed data. From a physicist's perspective, “marginalization of hidden variables” takes the name of...
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Antonio Rago (University of Southern Denmark (DK))03/06/2025, 16:15
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03/06/2025, 17:00
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Riikka Seppä04/06/2025, 09:00
Strongly coupled confining models are promising Dark Matter candidates. They have the benefit of potentially producing detectable gravitational waves during a first order confinement phase transition. To estimate the resulting gravitational wave spectrum, phase transition parameters like the nucleation rate are needed. With the nonperturbative nature of these transitions, nucleation rate has...
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Jaakko Hällfors04/06/2025, 09:30
Many extensions of the Standard Model feature first-order phase transitions at the electroweak scale. The bubble nucleation rate is one of the key parameters in determining the produced gravitational wave background. The most important part of the nucleation rate computation is the determination of the probability of the critical bubble configurations. In many physically interesting scenarios...
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Benjamin Jäger04/06/2025, 10:00
We present an overview of the FASTSUM collaboration’s ongoing program to investigate QCD at non-zero temperature (and chemical potential) using anisotropic Wilson‐fermion lattices. Our simulations employ an O(a²)‐improved gauge action together with an O(a)‐improved, stout‐smeared Wilson‐fermion action. By using lattices with spatial spacing aₛ≈0.11 fm and anisotropies ξ=aₛ/aₜ=3.5 (Generation...
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Jaakko Annala04/06/2025, 11:15
In the Standard Model, there is no true electroweak phase transition making electroweak baryogenesis unviable. However, many extensions of the SM have a first-order phase transition and can be mapped to a dimensionally reduced effective 3D Higgs+SU(2) theory. Different extensions can map to the same effective Higgs+SU(2) theory with just differing effective couplings. Thus, simulating the...
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Dr Tobias Rindlisbacher (University of Bern)04/06/2025, 11:45
We present lattice results for the confined-deconfined interface tension and the latent heat of pure SU(N) gauge theory up to N=10 (16) and investigate their asymptotic N-dependency. We determine the interface tension with the mixed phase or interface capillary wave method, introduced in the field theory context by Moore and Turok (1997). The method bypasses supercritical slowing down and...
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Simon Kuberski
The heavy flavor sector of the Standard Model is a promising avenue for uncovering physics beyond the Standard Model, given persistent tensions between theory and experiment. Precise Standard Model predictions require reliable control of non-perturbative effects, which lattice QCD can provide. However, handling heavy quarks on the lattice introduces significant systematic uncertainties.
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