Color Transparency and Hadron Formation Effects in High-Energy Reactions on Nuclei

Larionov, A. B.; Strikman, M.

doi:10.3390/particles3010004

Cited by 4 publications

(3 citation statements)

References 39 publications

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“…Pion p t spectrum is influenced by hadron formation only very weakly. In the collisions of heavier nuclei [338] the hadron formation effect becomes more pronounced, especially for central events.…”

Section: Numerical Resultsmentioning

confidence: 99%

Possible Studies at the First Stage of the NICA Collider Operation with Polarized and Unpolarized Proton and Deuteron Beams

Abramov

Aleshko²,

Baskov

et al. 2021

Phys. Part. Nuclei

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Nuclotron based Ion Collider fAcility (NICA) project is in progress at the Joint Institute for Nuclear Research and will start experiments with heavy ions. In the context of the NICA Hadronic Physics programme double polarized pp-, dd-and pd-collisions even at lower energies of √ sNN = 3.4 − 10 GeV, which will be accessible already at the initial stage of experiments,are essential tools for precise understanding the spin dependence of the nucleon-nucleon strong interactions, in both elastic and deep-inelastic regimes. A special interest is interaction in few baryon systems at double strangeness, charm and beauty thresholds.For instance, polarized large-angle elastic pp and pn scattering near the charm threshold allows one to get an access to properties of possible exotic multiquark states and their relation to the states recently observed at LHCb.Large angle scattering of protons and deuterons on the deuteron contains unique information on the short-range structure of the deuteron, its non-nucleonic degrees of freedom and also on color transparency phenomenon. Furthermore, double polarized proton-deuteron scattering offer a possibility to test the Standard Model through the search for time-invariance (or CP-invariance under CPT symmetry) violation and parity-violation in single-polarized scattering. This paper contains suggestions for experiments with usage of the Spin Physics Detector (SPD) and discusses perspectives of the first stage of the SPD Programme. This includes experiments with non-polarized beams too as well as collisions like 12 С-12 С and 40 Сa-40 Ca.9 Multiquark correlations and exotic hadron state production 9 9.1 Multiquark correlations and exotic state production at SPD NICA . . . .

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Section: Numerical Resultsmentioning

confidence: 99%

Possible Studies at the First Stage of the NICA Collider Operation with Polarized and Unpolarized Proton and Deuteron Beams

Abramov

Aleshko²,

Baskov

et al. 2021

Phys. Part. Nuclei

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show abstract

“…Even for Cornell and HERMES data with much higher Q 2 up to 10 GeV 2 , it was shown that the transverse cross section dominates [7]. The arguments from pQCD, thus, need to be taken with caution; indeed, in a recent publication [8], it is assumed that point-like configurations are formed both for longitudinal and transverse photons.…”

Section: Introductionmentioning

confidence: 99%

Hadronization and Color Transparency

Gallmeister

Mosel

2022

Physics

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In this paper, the earlier studies by us on the production of hadrons in a nuclear environment are reviewed. A string-breaking model for the initial production of hadrons and a quantum-kinetic Giessen-Boltzmann-Uehling-Uhlenbeck (GiBUU) transport model are used to describe the final state interactions of the newly formed (pre)hadrons. The latter are determined both by the formation times and by the time-development of the hadron–hadron cross section. First, it is shown that only a linear time dependence is able to describe the available hadronizatin data. Then, the results are compared with detailed data from HERMES and Jefferson Laboratory (JLAB) experiments; a rather good agreement is reached for all reactions, studied without any tuning of parameters. Predictions of spectra for pions and kaons for JLAB experiments at 12 GeV are also repeated. Finally, the absence of color transparency (CT) effects in the recent experiment on proton transparencies in quasi-elastic (QE) scattering events on nuclei is discussed. We propose to look instead for CT effects on protons in semi-inclusive deep inelastic scattering (SIDIS) events.

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“…Indeed, in a recent publication[7] the authors now assume that the point like configurations are formed both for longitudinal and transverse photons.…”

mentioning

confidence: 99%

Hadronization and Color Transparency

Gallmeister¹,

Mosel²

2022

Preprint

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In this article we review our work on the production of hadrons in the nuclear environment. We work with a string-breaking model for the initial production of hadrons and with a quantum-kinetic transport model (GiBUU) to describe the final state interactions of the newly formed (pre)hadrons. The latter are determined both by the formation times and by the time-development of the hadronhadron cross section. We first show that only a linear time-dependence is able to describe the available hadronizatin data. We then compare with detailed data from HERMES and JLAB; very good agreement is reached in all reactions studied without any tuning of parameters. We also repeat predictions of spectra for pions and kaons at JLAB@12GeV. We finally explain the absence of CT effects in the recent experiment on proton transparencies in QE events on nuclei. We propose to look instead for CT effects on protons in SIDIS events.

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Color Transparency and Hadron Formation Effects in High-Energy Reactions on Nuclei

Cited by 4 publications

References 39 publications

Possible Studies at the First Stage of the NICA Collider Operation with Polarized and Unpolarized Proton and Deuteron Beams

Possible Studies at the First Stage of the NICA Collider Operation with Polarized and Unpolarized Proton and Deuteron Beams

Hadronization and Color Transparency

Hadronization and Color Transparency

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