ANGULAR AND LONG RANGE RAPIDITY CORRELATIONS IN PARTICLE PRODUCTION AT HIGH ENERGY

We discuss the general mechanism leading to long-range rapidity and angular correlations produced in high energy collisions (the "ridge"). This effect naturally appears in the high energy QCD and is strongly sensitive to physics of the gluon saturation. We comment on various recent practical realizations of the main idea, paying special attention to Nc counting and stress the relevance of Pomeron loops.

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RENORMALIZATION GROUP EVOLUTION OF MULTI-GLUON CORRELATORS IN HIGH ENERGY QCD

International Journal of Modern Physics Conference Series ◽

10.1142/s2010194512009269 ◽

2012 ◽

Vol 20 ◽

pp. 214-221

Author(s):

JAMAL JALILIAN-MARIAN

Keyword(s):

Particle Production ◽

High Energy ◽

Forward Rapidity ◽

Proton Proton ◽

Proton Collisions ◽

Angular Correlations ◽

Energy Proton ◽

Group Evolution ◽

Proton Proton Collisions ◽

Made In

Forward rapidity di-hadron azimuthal angular correlations in high energy proton-nucleus and proton-proton collisions are sensitive to quadrupoles; traceless correlator of 4 Wilson lines whereas single inclusive particle production iNVOLVES only dipoles, traceless correlator of 2 Wilson lines. We discuss the progress made in understanding the energy (rapidity) evolution of the quadrupole as well as its various limits.

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On Particle Production in Lead-Gold Collision and Azimuthal Anisotropy at Top SPS Energy

Advances in High Energy Physics ◽

10.1155/2014/315932 ◽

2014 ◽

Vol 2014 ◽

pp. 1-5

Author(s):

Bao-Chun Li ◽

Zhao Zhang

Keyword(s):

Transverse Momentum ◽

Thermal Model ◽

Particle Production ◽

Elliptic Flow ◽

High Energy ◽

Azimuthal Anisotropy ◽

Evolution Process ◽

High Energy Collisions

In a multisource thermal model, we analyze the dependence of elliptic flowv2on the transverse momentumPT. The model results are compared with the data ofπ-,KS0,p, andΛmeasured in Pb + Au collisions at top SPS energy, 17.3 GeV. It is found that the azimuthal anisotropy in the evolution process of high-energy collisions is correlated highly to the number of participant nucleons.

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Hawking-Unruh Hadronization and Strangeness Production in High Energy Collisions

Advances in High Energy Physics ◽

10.1155/2014/376982 ◽

2014 ◽

Vol 2014 ◽

pp. 1-7 ◽

Cited By ~ 10

Author(s):

Paolo Castorina ◽

Helmut Satz

Keyword(s):

Quark Mass ◽

Particle Production ◽

Mass Effect ◽

Heavy Ion ◽

Strange Particle ◽

High Energy ◽

Relativistic Heavy Ion Collisions ◽

Thermalization Time ◽

Strange Particle Production ◽

High Energy Collisions

The thermal multihadron production observed in different high energy collisions poses many basic problems: why do even elementary,e+e-and hadron-hadron, collisions show thermal behaviour? Why is there in such interactions a suppression of strange particle production? Why does the strangeness suppression almost disappear in relativistic heavy ion collisions? Why in these collisions is the thermalization time less than≃0.5 fm/c? We show that the recently proposed mechanism of thermal hadron production through Hawking-Unruh radiation can naturally answer the previous questions. Indeed, the interpretation of quark (q)-antiquark (q̅) pairs production, by the sequential string breaking, as tunneling through the event horizon of colour confinement leads to thermal behavior with a universal temperature,T≃170 Mev, related to the quark acceleration,a, byT=a/2π. The resulting temperature depends on the quark mass and then on the content of the produced hadrons, causing a deviation from full equilibrium and hence a suppression of strange particle production in elementary collisions. In nucleus-nucleus collisions, where the quark density is much bigger, one has to introduce an average temperature (acceleration) which dilutes the quark mass effect and the strangeness suppression almost disappears.

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Heavy particle production and cluster models of high-energy collisions

Nuclear Physics B ◽

10.1016/0550-3213(74)90547-1 ◽

1974 ◽

Vol 75 (2) ◽

pp. 259-268 ◽

Cited By ~ 8

Author(s):

A. Biał;as ◽

M. Jacob ◽

S. Pokorski

Keyword(s):

Particle Production ◽

Heavy Particle ◽

High Energy ◽

Cluster Models ◽

High Energy Collisions

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Correlation study in high energy interaction of muon with Ag and Br nuclei

International Journal of Modern Physics E ◽

10.1142/s0218301318500775 ◽

2018 ◽

Vol 27 (09) ◽

pp. 1850077

Author(s):

M. T. Hussein ◽

M. T. Ghoneim ◽

S. M. Othman

Keyword(s):

Cross Sections ◽

Particle Production ◽

Production Cross ◽

High Energy ◽

Correlation Study ◽

Alpha Particles ◽

Angular Correlations ◽

Energy Interaction ◽

Range Correlation ◽

Total Particle

In this work, we present the study of emissions of light fragments produced in interactions of 160 GeV muons with emulsion nuclei. A total of 820 interactions with emulsion nuclei were collected. Thickness, coordinate and range of each track were measured. Charges of emitted fragments were identified and the corresponding energies were calculated. Multiplicity, total particle production cross-sections and angular distribution of particles (P, He, Li, Be and B) were presented. Forward–backward–angular correlations were measured for the emitted alpha particles. Short and long range correlation among pairs of Alfa particles were observed at specific angular intervals. The experimental data and the results of the angular correlation were used to find the probable mechanism of producing alpha particles and to reveal the dynamic characteristics of the reactions.

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