QCD Evolution 2026

Session

Session B1

12 May 2026, 15:30

El Escorial

59. On the reconstruction of SIDIS observables in the Breit frame

Richard Whitehill (Old Dominion University)

12/05/2026, 15:30

We discuss the semi-inclusive deep inelastic scattering (SIDIS) process from a phenomenological perspective, focusing especially on the unpolarized Breit frame transverse momentum spectrum and its associated azimuthal modulations. We find that experimental measurements of the large-$P_{h\perp}$ cross section and azimuthal asymmetries may constrain the theoretical uncertainties associated with...

37. Hadroproduction of Pseudoscalar Heavy-Quarkonium Mesons via NRFF1.0

Francesca Lonigro (UAH Madrid)

12/05/2026, 15:50

We investigate the inclusive hadroproduction of the pseudoscalar heavy-quarkonium mesons at high transverse momentum, focusing on the 13 TeV LHC energy scale. Our theoretical approach relies on the single-parton collinear factorization framework, where the formation of the heavy-quark bound state is described through Non-Relativistic QCD (NRQCD) at the initial scale at NLO. Central to this...

1. Matching relations for gluon TMDs up to one-loop accuracy

Alessio Carmelo Alvaro (University of Pavia and INFN Pavia)

12/05/2026, 16:10

A fundamental ingredient for phenomenological studies of the three-dimensional (3D) momentum structure of the nucleon is provided by matching relations. These relations constrain the functional form of 3D parton distributions by connecting them to their collinear counterparts. For quark transverse-momentum–dependent distributions (TMDs), matching relations are known at one-loop accuracy,...

61. TMD from dijet production in SIDIS

Patricia Andrea Gutiérrez García (Universidad Complutense de Madrid)

12/05/2026, 16:30

42. Tomography of nucleon through dimeson photoproduction

David PEREZ (IJCLab, Orsay)

12/05/2026, 16:50

In this talk, we consider the exclusive photoproduction of a di-meson pair with large invariant mass, $\gamma N \rightarrow N' M_1M_2$, in the framework of collinear factorisation. The mesons considered $M_1$ and $M_2$ are either pions or rho mesons, charged or neutral. We consider the kinematic regime characterised by a large invariant mass of the two-meson system, and a small deflection of...

27. Resummed azimuthal decorrelation and transverse momentum imbalance of dijets at the LHC

Rong-Jun Fu (Fudan University)

12/05/2026, 17:10

We present a theoretical study of the azimuthal decorrelation $\delta\phi$ and transverse momentum imbalance $q_T$ in dijet production at the LHC, offering intriguing insights into the dynamics of quantum chromodynamics. We define the jet axes using the recoil-free winner-take-all (WTA) recombination scheme. For the azimuthal decorrelation $\delta\phi$, this axis choice eliminates non-global...