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Green's Functions in the Color Field of a Large Nucleus

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15 Pith papers citing it
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abstract

We compute the Green's functions for scalars, fermions and vectors in the color field associated with the infinite momentum frame wavefunction of a large nucleus. Expectation values of this wavefunction can be computed by integrating over random orientations of the valence quark charge density. This relates the Green's functions to correlation functions of a two dimensional, ultraviolet finite, field theory. We show how one can compute the sea quark distribution functions, and explictly compute them in the kinematic range of transverse momenta, $\alpha_s^2 \mu^2 << k_t^2 << \mu^2$, where $\mu^2$ is the average color charge squared per unit area. When $m_{quark}^2 << \mu^2 \sim A^{1/3}$, the sea quark contribution to the infinite momentum frame wave function saturates at a value that is the same as that for massless sea quarks.

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2026 13 2025 2

representative citing papers

Unpolarized GPDs at small $x$ and non-zero skewness

hep-ph · 2025-12-10 · unverdicted · novelty 7.0

Unpolarized GPDs and GTMDs at small x with non-zero skewness are expressed via the dipole amplitude N and odderon O with modified rapidity Y = ln min{1/|x|, 1/|ξ|}.

Light-front Hamiltonian jet evolution in the Glasma

hep-ph · 2026-05-11 · unverdicted · novelty 7.0

A light-front Hamiltonian method evolves a quark through Glasma fields to obtain transverse momentum broadening and jet quenching consistent with classical scaling in saturation momentum.

Squeezed-state radiation in shockwave scattering: QCD-Gravity double copy

hep-th · 2026-05-04 · unverdicted · novelty 7.0

The n-particle gluon radiation spectrum in shockwave scattering is a generalized Susskind-Glogower squeezed coherent state, and multi-graviton radiation follows similarly via double copy, with feasible large squeezing parameters ~ln(n_bar) leading to enhanced quantum noise in gravitational wave sp

Emergent Local Phase-Space Scaling in Small-x Gluon Evolution

hep-ph · 2026-06-30 · unverdicted · novelty 6.0

After Q_s-adaptive coarse graining, conditional gluon Husimi momentum distributions from fixed-coupling SO(3)-BK evolution collapse as functions of k/Q_s(Y,b), with conditional entropy growing at unit slope versus ⟨ln Q_s²⟩.

Quark Reggeization in QCD from the Wilson line formalism

hep-ph · 2026-06-24 · unverdicted · novelty 6.0

Derives Reggeized quark operator from Wilson lines and its nonlinear rapidity RG evolution in QCD, recovering known Regge trajectories in dilute and large-Nc limits after signature projection.

Azimuthal decorrelation in diffractive dijet production

hep-ph · 2026-06-01 · unverdicted · novelty 6.0

All-order resummation of soft gluons for transverse energy-energy correlators in diffractive dijet production demonstrates sensitivity of acoplanarity to diffractive TMDs.

Kinetic and canonical momentum broadening in the Glasma

hep-ph · 2026-04-09 · unverdicted · novelty 6.0

Derives gauge-invariant equations of motion for kinetic and canonical momentum of particles in a classical non-Abelian background, finding that transverse fields contribute to kinetic momentum broadening even in the eikonal limit, and shows that an initial transverse Coulomb gauge reduces numerical

On the Two $R$-Factors in the Small-$x$ Shockwave Formalism

hep-ph · 2026-04-27 · unverdicted · novelty 5.0

Replacing the rapidity argument of the dipole amplitude with ln min{1/|x|, 1/|ξ|} and refining initial conditions for non-linear evolution can eliminate two R-factors in small-x shockwave calculations.

Nuclear Cold QCD: Review and Future Strategy

hep-ph · 2025-06-20 · unverdicted · novelty 2.0

Review summarizing observed cold nuclear matter modifications in hadron-nucleus collision data and proposing experimental strategies for the EIC to clarify underlying QCD mechanisms.

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