Charge-dependent pair correlations relative to a third particle in $p$ + Au and $d$+ Au collisions at RHIC - INSPIRE

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Charge-dependent pair correlations relative to a third particle in $p$ + Au and $d$ + Au collisions at RHIC

STAR

Collaboration

Jun 7, 2019

8 pages

Published in:

Phys.Lett.B 798 (2019) 134975

Published: Nov 10, 2019

e-Print:

1906.03373 [nucl-ex]

DOI:

10.1016/j.physletb.2019.134975

Experiments:

BNL-RHIC-STAR

View in:

ADS Abstract Service

reference search48 citations

Citations per year

Abstract: (Elsevier)

Quark interactions with topological gluon configurations can induce chirality imbalance and local parity violation in quantum chromodynamics. This can lead to electric charge separation along the strong magnetic field in relativistic heavy-ion collisions – the chiral magnetic effect (CME). We report measurements by the STAR collaboration of a CME-sensitive observable in p+Au and d+Au collisions at 200 GeV, where the CME is not expected, using charge-dependent pair correlations relative to a third particle. We observe strong charge-dependent correlations similar to those measured in heavy-ion collisions. This bears important implications for the interpretation of the heavy-ion data.

Note:

8 pages, 4 figures

correlation: charge dependence
magnetic field: chiral
p nucleus: scattering
deuteron nucleus: scattering
quark: interaction
parity: violation
charge: electric
quark gluon: interaction
magnetic field: high
quantum chromodynamics

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Figures(4)

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