English
Related papers

Related papers: A New Correlator to Detect and Characterize the Ch…

200 papers

We propose a novel method to search for the chiral magnetic effect (CME) in heavy ion collisions. We argue that the relative strength of the magnetic field (mainly from spectator protons and responsible for the CME) with respect to the…

Nuclear Theory · Physics 2018-07-18 Hao-jie Xu , Jie Zhao , Xiaobao Wang , Hanlin Li , Zi-Wei Lin , Caiwan Shen , Fuqiang Wang

This study explores the Chiral Magnetic Effect (CME) in ultra-relativistic heavy-ion collisions. The CME, observed as back-to-back charge separation along the magnetic field axis, is investigated using the newly developed Sliding Dumbbell…

Nuclear Theory · Physics 2025-02-04 Madan M. Aggarwal , Anjali Attri , Sonia Parmar , Anjali Sharma , Jagbir Singh

We report on our recent attempt of quantitative modeling of the Chiral Magnetic Effect (CME) in heavy-ion collisions. We perform 3+1 dimensional anomalous hydrodynamic simulations on an event-by-event basis, with constitutive equations that…

High Energy Physics - Phenomenology · Physics 2016-11-23 Yuji Hirono , Tetsufumi Hirano , Dmitri E. Kharzeev

Relativistic heavy-ion collisions provide an ideal environment to study the emergent phenomena in quantum chromodynamics (QCD). The chiral magnetic effect (CME) is one of the most interesting, arising from the topological charge…

Nuclear Experiment · Physics 2018-05-11 Jie Zhao

Charge-dependent two- and three-particle correlations measured in Xe-Xe collisions at $\sqrt{s_{\mathrm{NN}}} = 5.44$ TeV are presented. Results are obtained for charged particles in the pseudorapidity range $|\eta|<0.8$ and transverse…

Nuclear Experiment · Physics 2024-09-30 ALICE Collaboration

We study the flavor dependence of the Chiral Magnetic Effect (CME) by analyzing two key charge-separation correlators used to characterize the charge separation effect: the conventional $\Delta\gamma$ and the recently proposed $R_{\psi_2}$.…

Nuclear Theory · Physics 2025-07-28 Somdeep Dey , Abhisek Saha , Soma Sanyal

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

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…

Nuclear Experiment · Physics 2019-09-25 STAR collaboration

Anomalous Viscous Fluid Dynamics (AVFD) model calculations for $\mathrm{^{96}_{44}Ru +\, ^{96}_{44}Ru}$ and $\mathrm{^{96}_{40}Zr +\, ^{96}_{40}Zr}$ collisions ($\sqrt{s_{\rm NN}} = 200$ GeV) are used in concert with a charge-sensitive…

Nuclear Experiment · Physics 2018-12-26 Niseem Magdy , Shuzhe Shi , Jinfeng Liao , Peifeng Liu , Roy A. Lacey

The (3+1)D relativistic hydrodynamics with chiral anomaly is used to obtain a quantitative description of the chiral magnetic effect (CME) in heavy-ion collisions. We find that the charge-dependent hadron azimuthal correlations are…

High Energy Physics - Phenomenology · Physics 2015-08-28 Yuji Hirono , Tetsufumi Hirano , Dmitri E. Kharzeev

Recently there has been significant interest in the macroscopic manifestation of chiral anomaly in many-body systems of chiral fermions. A notable example is the Chiral Magnetic Effect (CME). Enthusiastic efforts have been made to search…

High Energy Physics - Phenomenology · Physics 2018-02-06 Anping Huang , Yin Jiang , Shuzhe Shi , Jinfeng Liao , Pengfei Zhuang

Quark interactions with topological gluon fields in QCD can yield local $\mathcal{P}$ and $\mathcal{CP}$ violations which could explain the matter-antimatter asymmetry in our universe. Effects of $\mathcal{P}$ and $\mathcal{CP}$ violations…

Nuclear Experiment · Physics 2019-01-29 Jie Zhao , Zhoudunming Tu , Fuqiang Wang

The azimuthal correlator $\Delta\gamma$ searching for the chiral magnetic effect (CME) is contaminated by a major background proportional to the elliptic flow $v_2$. Event-shape engineering (ESE) and event-shape selection (ESS) binning…

Nuclear Experiment · Physics 2025-09-26 Han-Sheng Li , Yicheng Feng , Fuqiang Wang

We investigate the chiral magnetic effect (CME) in relativistic heavy-ion collisions through an improved two-plane method analysis of the $\Delta\gamma$ observable, probing $\mathcal{CP}$-symmetry breaking in strong interactions and…

Nuclear Theory · Physics 2025-01-07 Bang-Xiang Chen , Xin-Li Zhao , Guo-Liang Ma

The chiral magnetic effect (CME) in quantum chromodynamics (QCD) refers to a charge separation (an electric current) of chirality imbalanced quarks generated along an external strong magnetic field. The chirality imbalance results from…

Nuclear Experiment · Physics 2019-06-28 Jie Zhao , Fuqiang Wang

The chiral magnetic effect (CME) induces an electric charge separation in a chiral medium along the magnetic field that is mostly produced by spectator protons in heavy-ion collisions. The experimental searches for the CME, based on the…

High Energy Physics - Phenomenology · Physics 2020-06-24 Subikash Choudhury , Gang Wang , Wanbing He , Yu Hu , Huan Zhong Huang

Chiral Magnetic Effect (CME) is the macroscopic manifestation of the fundamental chiral anomaly in a many-body system of chiral fermions, and emerges as anomalous transport current in hydrodynamic framework. Experimental observation of CME…

Nuclear Theory · Physics 2019-03-20 Shuzhe Shi , Yin Jiang , Elias Lilleskov , Jinfeng Liao

The chiral magnetic effect (CME) refers to generation of the electric current along a magnetic field in a chirally imbalanced system of quarks. The latter is predicted by quantum chromodynamics to arise from quark interaction with…

Nuclear Experiment · Physics 2025-07-22 Yicheng Feng , Sergei A. Voloshin , Fuqiang Wang

Matter with chiral fermions is microscopically described by theory with quantum anomaly and macroscopically described (at low energy) by anomalous hydrodynamics. For such systems in the presence of external magnetic field and chirality…

Nuclear Theory · Physics 2016-03-10 Yi Yin , Jinfeng Liao

The search for the chiral magnetic effect (CME) in relativistic heavy-ion collisions helps us understand the $\mathcal{CP}$ symmetry breaking in strong interactions and the topological nature of the QCD vacuum. Since the background and…

Nuclear Theory · Physics 2024-02-22 Bang-Xiang Chen , Xin-Li Zhao , Guo-Liang Ma