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

0511856 - ÚJF 2020 RIV NL eng J - Journal Article
Adam, J. - Adamczyk, L. - Adams, J. R. - Adkins, J. K. - Agakishiev, G. - Bielčík, J. - Bielčíková, Jana - Chaloupka, P. - Federič, Pavol - Holub, L. - Kocan, M. - Kosarzewski, L. K. - Kramárik, L. - Líčeník, R. - Matonoha, O. - Moravcová, Z. - Rusňák, Jan - Rusňáková, O. - Šimko, Miroslav - Šumbera, Michal - Vaněk, Jan … Total 345 authors
Charge-dependent pair correlations relative to a third particle in p plus Au and d plus Au collisions at RHIC.
Physics Letters. B. Roč. 798, č. 11 (2019), č. článku 134975. ISSN 0370-2693. E-ISSN 1873-2445
R&D Projects: GA MŠMT LTT18002
Institutional support: RVO:61389005
Keywords : STAR collaboration * heavy ion collisions
OECD category: Particles and field physics
Impact factor: 4.384, year: 2019
Method of publishing: Open access
https://doi.org/10.1016/j.physletb.2019.134975

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.
Permanent Link: http://hdl.handle.net/11104/0302104