Light Cone 2026: Applications at EIC era (LC 2026)

Session

Hamiltonian Methods, and Light-Front QCD

Jun 22, 2026, 9:00 AM

CFNS, Peter Paul Seminar Room, C 120 Physics Building (Stony Brook University/Online)

16. Basis Light Front Quantization (BLFQ) for QCD: hadrons without spatially confining terms

James Vary (Iowa State University)

6/22/26, 9:00 AM

Hamiltonian Methods, and Light-Front QCD

We review recent progress in Hamiltonian Light-Front quantization of QCD within a basis function representation known as BLFQ. Expanded Fock spaces are employed to include dynamical gluons and sea quark-antiquark pairs. Observables such as mass spectra, parton distribution functions (PDFs), electromagnetic form factors and transitions, among others, are calculated and compared with...

13. Toward First-Principles Calculations of Nucleon Structure in Full Light-Front QCD

Siqi Xu (Iowa State University)

6/22/26, 9:40 AM

Hamiltonian Methods, and Light-Front QCD

Basis Light-Front Quantization (BLFQ) is a fully relativistic and nonperturbative framework for solving the light-front QCD Hamiltonian, aiming at first-principles calculations of hadron structure.

For the nucleon system, we extend the Fock space up to six-particle sectors, including configurations such as five-quark–one-gluon and three-quark–three-gluon components with dynamical gluons. In...

3. Bridging hadronic spectroscopy with partonic observables

Edward Shuryak (Stony Brook University)

6/22/26, 10:45 AM

Hamiltonian Methods, and Light-Front QCD

The talk reviews two dosens of works during 2020's, with I.Zahed and students.
At the spectroscopy side we develop novel methods to derive wave functions
of multiquark hadrons with Fermi statistics,
based on representations of permutation groups Sn. Particularly
I will discuss pentaquarks and their admixture to nucleons, which are central to the
spin puzzle and antiquark PDFs. We also...

39. Gluon mass bridge between partons and constituents in QCD hadrons

Stanislaw Glazek (University of Warsaw)

6/22/26, 11:25 AM

Hamiltonian Methods, and Light-Front QCD

Computational access to the logarithmically scale-dependent Hamiltonian eigenstate picture of hadrons in the space of virtual quark and gluon states, within the canonical front form of QCD, is impeded by small-x divergences that are stronger than logarithmic. We propose introducing a gluon mass parameter and an auxiliary color-octet scalar field to overcome this barrier, using the...

24. Higher-Order Structure of Hamiltonian Truncation Effective Theory

Andrea Maestri (Pavia U. and INFN-Pavia)

6/22/26, 12:05 PM

Hamiltonian Methods, and Light-Front QCD

Hamiltonian truncation is a powerful non-perturbative method for quantum field theory, but its accuracy is generally limited by the influence of high-energy states excluded from the truncated Hilbert space. I will present Hamiltonian Truncation Effective Theory (HTET), which addresses this issue by interpreting the truncation scale as an effective field theory cutoff and encoding the effects...