Review of proton and nuclear shape fluctuations at high energy

Mäntysaari, Heikki

doi:10.48550/arxiv.2001.10705

Cited by 9 publications

(11 citation statements)

References 114 publications

(154 reference statements)

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“…Therefore, the measurements of anisotropic flow coefficients and their fluctuations provide us with a tool to image the event-by-event shape fluctuations of the colliding nuclei. Furthermore, small collision systems, such as protonlead collisions, can image the sub-nucleon fluctuations inside protons in a similar fashion [34,228,229].…”

Section: Nuclear Structure Physicsmentioning

confidence: 99%

Recent development of hydrodynamic modeling in heavy-ion collisions

2020

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We present a concise review of the recent development of relativistic hydrodynamics and its applications to heavy-ion collisions. Theoretical progress on the extended formulation of hydrodynamics towards out-ofequilibrium systems is addressed, emphasizing the so-called attractor solution. On the other hand, recent phenomenological improvements in the hydrodynamic modeling of heavy-ion collisions with respect to the ongoing Beam Energy Scan program, the quantitative characterization of transport coefficients in the three-dimensionally expanding quark-gluon plasma, the fluid description of small colliding systems, and some other interdisciplinary connections are discussed.

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Section: Nuclear Structure Physicsmentioning

confidence: 99%

Recent development of hydrodynamic modeling in heavy-ion collisions

2020

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“…[51][52][53][54] or Ref. [55] for a review. As the focus in this work is on the vector meson wave function which enters in calculations of both incoherent and coherent cross sections similarly, from now on we only consider coherent scattering here.…”

Section: Vector Meson Production In the Dipole Picturementioning

confidence: 99%

Relativistic corrections to the vector meson light front wave function

Lappi,

Mäntysaari,

Penttala

2020

Preprint

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We compute a light front wave function for heavy vector mesons based on long distance matrix elements constrained by decay width analyses in the Non Relativistic QCD framework. Our approach provides a systematic expansion of the wave function in quark velocity. The first relativistic correction included in our calculation is found to be significant, and crucial for a good description of the HERA exclusive J/ψ production data. When looking at cross section ratios between nuclear and proton targets, the wave function dependence does not cancel out exactly. In particular the fully non-relativistic limit is found not to be a reliable approximation even in this ratio. The important role of the Melosh rotation to express the rest frame wave function on the light front is illustrated.

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“…Therefore, subnucleon fluctuations are very important to understanding the collectively correlations in small collision systems. In recent years, it has been recognized that hot spot fluctuations in subnucleons are crucial to understanding the geometry of the initial stage of high energy collisions [12]. This leads to a series of new studies on the transverse spatial distribution of freedom degrees of subnucleon in protons and nuclei [13,14].…”

Section: Introductionmentioning

confidence: 99%

Parton evolution time dependent transverse shape asymmetry in peripheral Pb-Pb and p-Pb collisions at 5.02 TeV

Wei

2021

Preprint

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We use A Multi-Phase Transport (AMPT) model to simulate the parton evolution time dependent transverse asymmetry in peripheral Pb-Pb (b=14-15 fm) and p-Pb (b=0-1 fm) collisions at √ sNN = 5.02 TeV, respectively.The simulated results have shown that the initial asymmetry both of spatial and momentum are dependence on collision system, and the final asymmetry are independence on collision system, as a result of collision system expansion in the non-equilibrium dynamic. By the evolution time step, we extract the response coefficients from quantities between final asymmetry and time dependent transverse asymmetry. Such asymmetry response coefficients are strongly dependence on collision system. The evolution time dependent transverse asymmetry indicated that it provides a possible observation for studying the fluctuating droplet properties of Quark-Gluon Plasma (QGP), which is may produce in heavy ion collisions.

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Review of proton and nuclear shape fluctuations at high energy

Cited by 9 publications

References 114 publications

Recent development of hydrodynamic modeling in heavy-ion collisions

Recent development of hydrodynamic modeling in heavy-ion collisions

Relativistic corrections to the vector meson light front wave function

Parton evolution time dependent transverse shape asymmetry in peripheral Pb-Pb and p-Pb collisions at 5.02 TeV

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