Prospects for identified leading particle correlations in ALICE

Density expansion for particle-particle correlations in time-dependent physical clusters

Physical Review E ◽

10.1103/physreve.61.r6067 ◽

2000 ◽

Vol 61 (6) ◽

pp. R6067-R6070 ◽

Cited By ~ 7

Author(s):

Luis A. Pugnaloni ◽

Fernando Vericat

Keyword(s):

Time Dependent ◽

Particle Correlations ◽

Physical Clusters ◽

Density Expansion

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Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at $$ \sqrt{s_{\mathrm{NN}}} $$ = 2.76 and 5.02 TeV

Journal of High Energy Physics ◽

10.1007/jhep09(2020)160 ◽

2020 ◽

Vol 2020 (9) ◽

Author(s):

S. Acharya ◽

◽

D. Adamová ◽

A. Adler ◽

J. Adolfsson ◽

...

Keyword(s):

Charged Particles ◽

Magnetic Effect ◽

Anisotropic Flow ◽

Charge Conservation ◽

Particle Correlations ◽

Azimuthal Correlations ◽

Chiral Magnetic Effect ◽

Local Charge ◽

Peripheral Collisions ◽

Dependent Signal

Abstract Systematic studies of charge-dependent two- and three-particle correlations in Pb-Pb collisions at $$ \sqrt{s_{\mathrm{NN}}} $$ s NN = 2.76 and 5.02 TeV used to probe the Chiral Magnetic Effect (CME) are presented. These measurements are performed for charged particles in the pseudorapidity (η) and transverse momentum (pT) ranges |η| < 0.8 and 0.2 < pT< 5 GeV/c. A significant charge-dependent signal that becomes more pronounced for peripheral collisions is reported for the CME-sensitive correlators γ1, 1 = 〈cos(φα + φβ − 2Ψ2)〉 and γ1, − 3 = 〈cos(φα − 3φβ + 2Ψ2)〉. The results are used to estimate the contribution of background effects, associated with local charge conservation coupled to anisotropic flow modulations, to measurements of the CME. A blast-wave parametrisation that incorporates local charge conservation tuned to reproduce the centrality dependent background effects is not able to fully describe the measured γ1,1. Finally, the charge and centrality dependence of mixed-harmonics three-particle correlations, of the form γ1, 2 = 〈cos(φα + 2φβ − 3Ψ3)〉, which are insensitive to the CME signal, verify again that background contributions dominate the measurement of γ1,1.

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Pair-correlation ansatz for the ground state of interacting bosons in an arbitrary one-dimensional potential

Scientific Reports ◽

10.1038/s41598-021-92556-7 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Przemysław Kościk ◽

Arkadiusz Kuroś ◽

Adam Pieprzycki ◽

Tomasz Sowiński

Keyword(s):

Boundary Conditions ◽

Ground State ◽

Pair Correlation ◽

Contact Interactions ◽

One Dimensional ◽

Particle Correlations ◽

Variational Scheme ◽

Full Control ◽

Arbitrary Shapes

AbstractWe derive and describe a very accurate variational scheme for the ground state of the system of a few ultra-cold bosons confined in one-dimensional traps of arbitrary shapes. It is based on assumption that all inter-particle correlations have two-body nature. By construction, the proposed ansatz is exact in the noninteracting limit, exactly encodes boundary conditions forced by contact interactions, and gives full control on accuracy in the limit of infinite repulsions. We show its efficiency in a whole range of intermediate interactions for different external potentials. Our results manifest that for generic non-parabolic potentials mutual correlations forced by interactions cannot be captured by distance-dependent functions.

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Preequilibrium particles and mean-field effects from particle-particle correlations in heavy-ion collisions

Nuclear Physics A ◽

10.1016/0375-9474(90)90156-g ◽

1990 ◽

Vol 514 (3) ◽

pp. 564-588 ◽

Cited By ~ 16

Author(s):

D. Ardouin ◽

Z. Basrak ◽

P. Schuck ◽

A. Péghaire ◽

F. Saint-Laurent ◽

...

Keyword(s):

Heavy Ion Collisions ◽

Mean Field ◽

Heavy Ion ◽

Particle Correlations ◽

Field Effects ◽

Ion Collisions

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Leading particle and nuclear-mass effects on multiparticle production in 50 GeV/c π− interactions in nuclear emulsion

Canadian Journal of Physics ◽

10.1139/p81-105 ◽

1981 ◽

Vol 59 (6) ◽

pp. 812-819 ◽

Cited By ~ 1

Author(s):

S. C. Varma ◽

V. Kumar ◽

A. P. Sharma

Keyword(s):

Magnetic Field ◽

Experimental Study ◽

Nuclear Emulsion ◽

Hadronic Matter ◽

Multiparticle Production ◽

Particle Multiplicity ◽

Nuclear Mass ◽

Space Time Structure ◽

Leading Particle ◽

Grey Particle

An experimental study is carried out on the effects of nuclear mass on leading particle multiplicity and multiparticle production with the help of an emulsion stack exposed to 50 GeV/c π− beam under a strong pulsed magnetic field. The study of the effect of nuclear mass on the forward–backward asymmetry in a π−–A collision is also carried out using the grey particle multiplicity data. The results support the concept of "formation length" of radiation. An attempt is made to explain the space–time structure of hadronic matter in terms of the additive quark model of multiparticle production.

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