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Recent experimental results obtained at the Relativistic Heavy-Ion Collider (RHIC) will be discussed. Investigations of different nucleus-nucleus collisions in recent years focus on two main tasks, namely, the detailed study of sQGP…

Nuclear Experiment · Physics 2015-08-05 V. A. Okorokov

An interpretation of the charge dependent correlations sensitive to the Chiral Magnetic Effect (CME) -- the separation of the electric charges along the system magnetic field (across the reaction plane) -- is ambiguous due to a possible…

Nuclear Experiment · Physics 2018-12-05 Sergei A. Voloshin

The Chiral Magnetic Effect (CME) is a phenomenon in which electric charge is separated by a strong magnetic field from local domains of chirality imbalance and parity violation in quantum chromodynamics (QCD). The CME-sensitive observable,…

Data Analysis, Statistics and Probability · Physics 2025-11-06 Han-Sheng Li , Yicheng Feng , Fuqiang Wang

Chirality is a ubiquitous concept in modern science, from particle physics to biology. In quantum physics, chirality of fermions is linked to topology of gauge fields by the chiral anomaly. While the chiral anomaly is usually associated…

High Energy Physics - Phenomenology · Physics 2022-04-26 Dmitri E. Kharzeev

Results are presented from the ATLAS collaboration from the 2010 LHC heavy ion run, during which nearly 10 inverse microbarns of luminosity were delivered. Soft physics results include charged particle multiplicities and collective flow.…

Nuclear Experiment · Physics 2015-05-28 Peter Steinberg , ATLAS Collaboration

Prompt photon production in ultra-relativistic heavy-ion collisions provides a calibrated probe for the study of the properties of high energy density QCD matter. Especially interesting are the measurements of $\gamma$-tagged jets where the…

Nuclear Experiment · Physics 2008-11-26 Kirill Filimonov

Background: The chiral magnetic effect (CME) is extensively studied in heavy-ion collisions at RHIC and the LHC. An azimuthal correlator called $R_{\Psi_{m}}$ was proposed to measure the CME. By observing the same $R_{\Psi_{2}}$ and…

Nuclear Theory · Physics 2021-04-07 Yicheng Feng , Jie Zhao , Hao-jie Xu , Fuqiang Wang

Separation of charges along the extreme magnetic field created in non-central relativistic heavy--ion collisions is predicted to be a signature of local parity violation in strong interactions. We report on results for charge dependent two…

Nuclear Experiment · Physics 2019-08-14 Panos Christakoglou

The experimental detection of the effects of noncommuting coordinates in electrodynamic phenomena depends on the magnitude of |\theta B|, where \theta is the noncommutativity parameter and B a background magnetic field. With the present…

High Energy Physics - Phenomenology · Physics 2011-06-08 P. Castorina , A. Iorio , D. Zappalá

Heavy ion cross sections totaling several hundred barns have been calculated previously for the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC). These total cross sections are more than an order of magnitude…

In this work we explore the possibility to perform ``effective energy'' studies in very high energy collisions at the CERN Large Hadron Collider (LHC). In particular, we focus on the possibility to measure in $pp$ collisions the average…

Non-Standard-Model parity violation may be occurring in LHC collisions. Any such violation would go unseen, however, as searches are for it are not currently performed. One barrier to searches for parity violation is the lack of…

High Energy Physics - Phenomenology · Physics 2022-10-21 Christopher G. Lester , Radha Mastandrea , Daniel Noel , Rupert Tombs

Relativistic heavy-ion collisions provide a unique opportunity to search for parity violation in non-central collisions. This could lead to charge separation perpendicular to the reaction plane. An event-by-event measurement of charge…

High Energy Physics - Experiment · Physics 2017-03-29 Sonia Parmar

The possibility of the formation of a local parity breaking (LPB) in a quark-hadron medium is examined as a result of chiral symmetry violation, i.e, the appearance of difference between the average densities of right- and left-handed…

High Energy Physics - Phenomenology · Physics 2019-10-23 A. A. Andrianov , V. A. Andrianov , D. Espriu , A. V. Iakubovich , A. E. Putilova

We discuss the helicity polarization which can be locally induced from both vorticity and helicity charge in non-central heavy ion collisions. Helicity charge redistribution can be generated in viscous fluid and contributes to azimuthal…

High Energy Physics - Phenomenology · Physics 2021-11-03 Jian-Hua Gao

We present the first study of the Chiral Magnetic Effect (CME) using transverse spherocity as an event-shape classifier in Pb+Pb collisions at $\sqrt{s_{NN}} = 5.02$ TeV, simulated with the A Multi-Phase Transport (AMPT) model with a…

Nuclear Experiment · Physics 2026-04-08 Somdeep Dey , Abhisek Saha

We report the measurements of $\Lambda$ hyperons' global and local spin polarization from second phase of the RHIC Beam Energy Scan (BES-II) in Au+Au collisions at $\sqrt{s_{NN}}$= 7.7--27 GeV. Global polarization measurements of…

Nuclear Experiment · Physics 2024-12-16 Q. Hu

We report our recent study on the global and local polarization of $\Lambda$ hyperons in Au+Au collisions at RHIC-BES energies within the (3+1)-dimensional CLVisc hydrodynamics framework. We present our numerical results for the global…

Nuclear Theory · Physics 2023-12-15 Xiang-Yu Wu , Cong Yi , Guang-You Qin , Shi Pu

In this Letter we explore the modelling of hadron production in electromagnetic ion dissociation (EMD) processes in high-energy ultraperipheral collisions at LHC energies. Since EMD can accompany exclusive particle production in these…

High Energy Physics - Phenomenology · Physics 2026-04-30 M. Dyndal , L. A. Harland-Lang

Since its discovery, global polarization of the $\Lambda$ hyperon in heavy-ion collisions has been firmly established and is widely attributed to the large vorticity generated in the rotating quark-gluon plasma. In contrast, nearly fifty…

High Energy Physics - Phenomenology · Physics 2026-03-23 Feng Liu , Zhoudunming Tu