Bridging TMD Frameworks: Intersections, Tensions, and Applications

→ Europe/Rome
Aula Renzo Leonardi (ECT*)

Aula Renzo Leonardi

ECT*

Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
Aleksandra Lelek, Alexey Vladimirov, Giovanni Antonio Chirilli, Maria Zurita (Complutense University of Madrid - IPARCOS)
Description

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The Electron-Ion Collider (EIC) will open a new frontier in exploring the internal dynamics of hadrons and nucl , offering precision access to the three-dimensional structure of matter. Transverse Momentum Dependent (TMD) distributions are essential tools for interpreting EIC observables, but the theoretical landscape behind them remains fragmented. Multiple formalisms—including SCET-based factorization, CSS resummation, small-x evolution, and parton branching approaches—offer different definitions, evolution equations, and assumptions.

This event brings together experts from these distinct frameworks to confront foundational differences and assess their phenomenological implications. Key goals include clarifying the compatibility of non-linear small-x dynamics with perturbative resummation, understanding scheme dependence in evolution kernels, and identifying observables sensitive to these theoretical distinctions.

The program is expected to yield a roadmap for harmonizing or delineating the domains of existing approaches, define benchmark processes relevant to EIC phenomenology, and initiate collaborative work toward a unified QCD description of transverse momentum dynamics. By bridging methodological boundaries, this meeting supports the development of a coherent theory toolkit for the EIC and strengthens the theoretical foundations of QCD analysis.

Susan Driessen
Participants
    • 1
      Registration Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
    • 2
      Welcome and Introduction Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
    • 11:00 AM
      Coffe Break Villa Tambosi

      Villa Tambosi

    • 3
      Beyond twist-2 TMDs: Generalized TMDs, NLP TMDs, quasiTMDs Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Simone Rodini (Pavia U & INFN Pavia)
    • 12:45 PM
      Lunch Villa Tambosi

      Villa Tambosi

    • 4
      Towards Global TMD fits with Neural Networks Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Matteo Cerutti (CEA Paris-Saclay)
    • 3:30 PM
      Coffe break Villa Tambosi

      Villa Tambosi

    • 5
      Transverse Spin Effects at NLO Accuracy in Semi-Inclusive Deep Inelastic Scattering Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Diego Scantamburlo (University of Tübingen - University of Trento)
    • 6
      Matching relations for gluon TMDs up to one-loop accuracy Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Alessio Carmelo Alvaro (Università di Pavia e INFN)
    • 8:00 PM
      Dinner Restaurant Green Tower Restaurant Green Tower

      Restaurant Green Tower

      Via Torre Verde 29 Trento
    • 7
      Helicity TMDs at small x: exact results at large Nc&Nf Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Prof. Yuri Kovchegov (The Ohio State University)
    • 10:00 AM
      Coffe break Villa Tambosi

      Villa Tambosi

    • 8
      TBA Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
    • 9
      Diffractive TMDs and their evolution Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Dionysios Triantafyllopoulos (ECT*, Italy)
    • 12:45 PM
      Lunch Villa Tambosi

      Villa Tambosi

    • 10
      High-Energy factorisation at NLO from collinear factorisation and connections to TMD-evolution Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Maksim Nefedov (Ben Gurion University)
    • 3:30 PM
      Coffe break Villa Tambosi

      Villa Tambosi

    • 11
      Gluon splitting at small x: a unified derivation for the JIMWLK, DGLAP and CSS equations Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Paul Caucal (Subatech)
    • 12
      Discussion session Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
    • 13
      Quark TMD in SIDIS at small x Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Jamal Jalilian-Marian (Baruch College, CUNY)
    • 10:00 AM
      Coffe break Villa Tambosi

      Villa Tambosi

    • 14
      Quark TMDs from back-to-back dijets in pA collision Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Swaleha Mulani (University of Jyvaskyla)
    • 15
      TMD extractions with artemide Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Alejandro Bris Cuerpo (Universidad Complutense Madrid)
    • 12:45 PM
      Lunch Villa Tambosi

      Villa Tambosi

    • 16
      Transverse Momentum Moments Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Alexey Vladimirov (Universidad Complutense de Madrid)
    • 3:30 PM
      Coffe break Villa Tambosi

      Villa Tambosi

    • 17
      Rapidity-only TMD factorization Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Ian Balitsky (JLab/ODU)
    • 18
      Next-to-next-to-leading power corrections to unpolarized Semi-Inclusive Deep Inelastic Scattering Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Alexei Prokudin (PSU Berks and Jefferson Lab)
    • 8:00 PM
      Dinner Restaurant Due Mori
    • 19
      TMD PB method: a MC approach based on TMD factorization Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Aleksandra Lelek
    • 10:00 AM
      Coffe break Villa Tambosi

      Villa Tambosi

    • 20
      Collins asymmetries for pion-in-jet production in polarized pp and ep collisions Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Umberto D'Alesio (University and INFN Cagliari)
    • 21
      Balancing the phenomenology of TMD Sivers function Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Filippo Delcarro (IFJ PAN)
    • 12:45 PM
      Lunch Villa Tambosi

      Villa Tambosi

    • 22
      Building bridges from TMD phenomenology to the wider QCD landscape Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Andrea Simonelli (INFN Roma 1)
    • 3:30 PM
      Coffe break Villa Tambosi

      Villa Tambosi

    • 23
      A new TMD factorization relating large-x and small-x Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Shaswat Tiwari (BNL)
    • 24
      Discussion session Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
    • 25
      Anti-Collinear resummation: from JIMWLK to BFKL Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)

      M.Nefedov, A.Kovner, M.Lublinsky and V. Skokov; based on https://arxiv.org/pdf/2601.02131 + new results on running coupling

      Speaker: Maksim Nefedov (Ben Gurion University)
    • 10:00 AM
      Coffe break Villa Tambosi

      Villa Tambosi

    • 26
      From Non-Local OPE to High-Energy OPE Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
      Speaker: Giovanni Antonio Chirilli (National Centre for Nuclear Research (NCBJ), Warsaw)
    • 11:30 AM
      Closing remarks Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)
    • 12:45 PM
      Lunch Aula Renzo Leonardi

      Aula Renzo Leonardi

      ECT*

      Strada delle Tabarelle 286, I-38123 Villazzano (Trento)