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Review of proton and nuclear shape fluctuations at high energy

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arxiv 2001.10705 v2 pith:Z5CEREME submitted 2020-01-29 hep-ph hep-exnucl-exnucl-th

classification hep-phhep-exnucl-exnucl-th
keywords energyexperimentsfluctuationshighnuclearcolliderevent-by-eventfunction
verification ladder T0 review T1 audit T2 compute T3 formal

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Determining the inner structure of protons and nuclei in terms of their fundamental constituents has been one of the main tasks of high energy nuclear and particle physics experiments. This quest started as a mapping of the (average) parton densities as a function of longitudinal momentum fraction and resolution scale. Recently, the field has progressed to more differential imaging, where one important development is the description of the event-by-event quantum fluctuations in the wave function of the colliding hadron. In this Review, recent developments on the extraction of proton and nuclear transverse geometry with event-by-event fluctuations from collider experiments at high energy is presented. The importance of this fundamentally interesting physics in other collider experiments like in studies of the properties of the Quark Gluon Plasma is also illustrated.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Factorization of elastic, single, and double diffractive $pp$ scattering

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    SCET with Glauber operators factorizes elastic/single/double diffractive pp scattering, proving non-universality of hadronic functions versus ep while rapidity anomalous dimensions remain universal.

  2. Saturation effects in exclusive vector meson production in DIS

    hep-ph 2025-11 conditional novelty 6.0 of 10

    A dense-limit CGC hotspot calculation shows saturation mildly suppresses exclusive vector meson cross sections in ep, with suppression growing at higher color-charge density.

  3. Exclusive $\mathrm{J}/\psi$ production off a dilute proton within a refined hotspot description

    hep-ph 2025-09 conditional novelty 6.0 of 10

    A hot-spot model with saturation-scale and hotspot-number fluctuations plus a relativistic wave-function correction reproduces HERA exclusive J/psi data, with saturation-scale fluctuations dominating.

  4. Cross-Section Bootstrap: Unveiling the Froissart Amplitude

    hep-th 2025-06 conditional novelty 6.0 of 10

    A universal finite-energy upper bound on the integrated cross-section for identical scalars is derived; the conjectured saturating "Froissart amplitude" shows Regge trajectories, a rising cross-section, and annulus-li...

  5. Collision energy dependence in heavy ion collisions from nonlinear QCD evolution

    nucl-th 2025-02 conditional novelty 6.0 of 10

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  6. Nuclear suppression in diffractive vector meson production within the color glass condensate framework

    hep-ph 2025-08 conditional novelty 4.0 of 10

    Within a color glass condensate model fit to HERA and LHC data, coherent J/psi production on heavy nuclei is predicted to fall to 15-30% of the no-saturation A^(4/3) scaling.

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