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QCD Evolution 2026

11–15 May 2026
El Escorial
Europe/Madrid timezone

In case of need please contact the organizers

Session

Session C1

13 May 2026, 15:30
El Escorial

El Escorial

Casa E. San José, Av. Reyes Católicos, 12 - 28280 El Escorial - Madrid

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  1. 28. Fragmentation functions on quantum computers
    Juan José Gálvez Viruet (Univ. Complutense de Madrid)
    13/05/2026, 15:30

    The real-time phenomenology of interacting quarks and gluons remains largely beyond the reach of computational techniques based on stochastic methods due to the fermionic sign problem. As a consequence, simulations of parton dynamics—particularly their transformation into final-state hadrons through fragmentation and hadronisation—are currently not feasible with these approaches.

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  2. 29. Pionic gluons from global QCD analysis of experimental and lattice data
    William Good (Michigan State University)
    13/05/2026, 15:50

    We perform the first global QCD analysis of parton distribution functions (PDFs) in the pion, with lattice-QCD data on gluonic pseudo--Ioffe-time distributions fitted simultaneously with experimental Drell-Yan and leading neutron electroproduction data. Inclusion of the lattice results with parametrized systematic corrections significantly reduces the uncertainties on the gluon PDF at parton...

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  3. 50. Connecting Baryon Light-Front Wave Functions to Quasi-Transverse-Momentum-Dependent Correlators in Lattice QCD
    Andrea Schiavi
    13/05/2026, 16:10

    Within light-front quantization, hadrons can be represented on a Fock-space basis of configurations of elementary partons. The coefficients of the expansion are called light-front wave functions (LFWFs), and encode all the dynamical degrees of freedom. We show how to extract the LFWFs of baryons, such as the proton, from equal-time correlators suitable for Lattice QCD simulations. Using an...

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  4. 54. Score-based diffusion models for lattice gauge theory and prospects for TMD/FF reconstruction
    Bao-Dong Sun (Ruhr University Bochum)
    13/05/2026, 16:30

    Score-based diffusion models are applied to two-dimensional SU(2) lattice pure gauge theory with the Wilson action, using a quaternion parameterization of the group manifold. Trained at a single coupling on an 8×8 lattice, the model generates configurations at different couplings via physics-conditioned sampling and generalizes to larger lattice sizes through a fully convolutional U-Net with...

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  5. 55. Quasi Parton Distribution Functions in Covariant Quark Models
    Asli Tandogan (University of Connecticut)
    13/05/2026, 16:50

    Quasi-parton distribution functions (qPDFs) are defined through QCD fields at spacelike separations evaluated in matrix elements of hadrons moving with finite velocity $v$. In the limit $v \to 1$, qPDFs converge to standard parton distribution functions (PDFs). It is therefore instructive to study their properties and convergence in effective models. We present a general analysis of...

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  6. 64. qT/Q corrections for unpolarized Drell-Yan in TMD factorization
    Arturo Arroyo Castro (Universidad Complutense de Madrid)
    13/05/2026, 17:10
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