Relativistic corrections to the vector meson light front wave function

Lappi, T.; Mäntysaari, Heikki; Penttala, Jani

doi:10.1103/physrevd.102.054020

Cited by 68 publications

(58 citation statements)

References 115 publications

(192 reference statements)

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“…The virtual photon wave functions describing the γ * → quark-antiquark splitting can be further employed to investigate the exclusive vector meson production in virtual photon-proton (or nucleus) scattering. [52][53][54][55][56][57].…”

Section: Discussionmentioning

confidence: 99%

Basis light-front quantization approach to photon

Nair,

Mondal,

Zhao

et al. 2022

Preprint

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We solve for the light-front wave functions (LFWFs) of the physical photon from the eigenvectors of the light-front quantum electrodynamics (QED) Hamiltonian with the aim to determine its bare photon and electron-positron Fock components. We then employ the resulting LFWFs to compute the transverse momentum dependent parton distributions (TMDs) and the generalized parton distributions (GPDs) of the photon. The TMDs are found to be in excellent agreement with the lowest-order perturbative results calculated using the electron-positron quantum fluctuation of the photon. The GPDs are also consistent with the perturbative calculations.

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Section: Discussionmentioning

confidence: 99%

Basis light-front quantization approach to photon

Nair,

Mondal,

Zhao

et al. 2022

Preprint

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“…More precisely, we only need to compute the leading order corrections of C 0 q q q q and the leading order contribution to C 0 q qg q q. A study of finite k corrections can be found in [5].…”

Section: Quarkonium Light Cone Wave Function In the Non-relativistic Limitmentioning

confidence: 99%

The dipole picture and the non-relativistic expansion

Escobedo

Lappi

2022

EPJ Web Conf.

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We study exclusive quarkonium production in the dipole picture at next-to-leading order (NLO) accuracy, using the non-relativistic expansion for the quarkonium wavefunction. The quarkonium light cone wave functions needed in the dipole picture have typically been available only at tree level, either in phenomenological models or in the nonrelativistic limit. Here, we discuss the compatibility of the dipole approach and the non-relativistic expansion and compute NLO relativistic corrections to the quarkonium light-cone wave function in light-cone gauge.

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“…Different parametrizations for these objects have been recently compared when studying rapidity distributions [96] where the authors find large systematics uncertainties. Recent developments on relativistic corrections to vector meson light-cone wave-functions can be found in [97].…”

Section: Competing Mechanisms and Systematic Uncertaintiesmentioning

confidence: 99%

Mining for Gluon Saturation at Colliders

Morreale

Salazar

2021

Universe

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Quantum chromodynamics (QCD) is the theory of strong interactions of quarks and gluons collectively called partons, the basic constituents of all nuclear matter. Its non-abelian character manifests in nature in the form of two remarkable properties: color confinement and asymptotic freedom. At high energies, perturbation theory can result in the growth and dominance of very gluon densities at small-x. If left uncontrolled, this growth can result in gluons eternally growing violating a number of mathematical bounds. The resolution to this problem lies by balancing gluon emissions by recombinating gluons at high energies: phenomena of gluon saturation. High energy nuclear and particle physics experiments have spent the past decades quantifying the structure of protons and nuclei in terms of their fundamental constituents confirming predicted extraordinary behavior of matter at extreme density and pressure conditions. In the process they have also measured seemingly unexpected phenomena. We will give a state of the art review of the underlying theoretical and experimental tools and measurements pertinent to gluon saturation physics. We will argue for the need of high energy electron-proton/ion colliders such as the proposed EIC (USA) and LHeC (Europe) to consolidate our knowledge of QCD knowledge in the small x kinematic domains.

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Relativistic corrections to the vector meson light front wave function

Cited by 68 publications

References 115 publications

Basis light-front quantization approach to photon

Basis light-front quantization approach to photon

The dipole picture and the non-relativistic expansion

Mining for Gluon Saturation at Colliders

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