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The energy dependence of the local ${\cal P}$ and ${\cal CP}$ violation in Au+Au and Cu+Cu collisions in a large energy range is estimated within a simple phenomenological model. It is expected that at LHC the Chiral Magnetic effect (CME)…

Nuclear Theory · Physics 2015-05-20 V. D. Toneev , V. Voronyuk

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

In this talk, we report our present work on the chiral magnetic effect (CME) under a strong magnetic field at low temperature. To this end, we use the instanton vacuum with the finite instanton-number fluctuation Delta, which relates to the…

High Energy Physics - Phenomenology · Physics 2017-08-23 Seung-il Nam

The interplay between the chiral anomaly and the strong magnetic or vortical fields created in noncentral heavy-ion collisions can lead to various anomalous chiral effects in the quark--gluon plasma, including the chiral magnetic effect…

Nuclear Experiment · Physics 2023-12-13 Chun-Zheng Wang

We study some properties of the non-Abelian vacuum induced by strong external magnetic field. We perform calculations in the quenched SU(3) lattice gauge theory with tadpole-improved Luscher-Weisz action and chirally invariant lattice Dirac…

High Energy Physics - Lattice · Physics 2015-05-20 V. V. Braguta , P. V. Buividovich , T. Kalaydzhyan , S. V. Kuznetsov , M. I. Polikarpov

Metastable domains of fluctuating topological charges can change the chirality of quarks and induce local parity violation in quantum chromodynamics. This can lead to observable charge separation along the direction of the strong magnetic…

High Energy Physics - Experiment · Physics 2018-02-01 Jie Zhao

Chiral condensate and $\eta^\prime$ meson mass spectrum are studied under the influence of an external Abelian magnetic field. We work within the D3/D7 Karch--Katz model of flavoured AdS/CFT with supersymmetry broken by the Constable--Myers…

High Energy Physics - Theory · Physics 2011-08-04 A. V. Zayakin

The Chiral Magnetic Effect (CME) -- the separation of positive and negative electric charges along the direction of the external magnetic field in quark-gluon plasma and other topologically non-trivial media -- is a consequence of the…

High Energy Physics - Phenomenology · Physics 2018-06-27 Kirill Tuchin

We derived an analytic structure of the quark mass correction to chiral separation effect (CSE) in small mass regime. We confirmed this structure by a D3/D7 holographic model study in a finite density, finite magnetic field background. The…

High Energy Physics - Theory · Physics 2017-11-20 Er-dong Guo , Shu Lin

We study the time evolution of the chirality imbalance $n_5$ and the chiral magnetic effect (CME) under the external parallel electromagnetic fields without assuming the artificial chiral asymmetric source. We adopt the time-dependent…

High Energy Physics - Phenomenology · Physics 2021-02-10 Hayato Aoi , Katsuhiko Suzuki

The Anomalous Viscous Fluid Dynamics (AVFD) framework is utilized to generate $^{197}_{79}Au+^{197}_{79}Au$, $^{96}_{44}Ru+^{96}_{44}Ru$, and $^{96}_{40}Zr+^{96}_{40}Zr$ collision events at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV to investigate…

High Energy Physics - Phenomenology · Physics 2025-11-11 Jagbir Singh , Anjali Sharma , Ankita Nain , Madan M. Aggarwal

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) is predicted for mid-peripheral Au-Au collisions $\sqrt{s_{NN}}$=200 GeV at RHIC. However many backgrounds can give signals that make the measurement hard to interpret. The STAR experiment has made a…

Nuclear Theory · Physics 2011-12-12 Ron Longacre

The chiral magnetic effect (CME) is a collective quantum phenomenon that arises from the interplay between gauge field topology and fermion chiral anomaly, encompassing a wide range of physical systems from semimetals to quark-gluon plasma.…

Nuclear Theory · Physics 2025-01-03 Dmitri E. Kharzeev , Jinfeng Liao , Prithwish Tribedy

We report on the mean-field study of the Chiral Magnetic Effect (CME) in static magnetic fields within a simple model of a parity-breaking Weyl semimetal given by the lattice Wilson-Dirac Hamiltonian with constant chiral chemical potential.…

Strongly Correlated Electrons · Physics 2015-12-07 P. V. Buividovich , M. Puhr , S. N. Valgushev

We investigate the signal of the chiral magnetic effect (CME) in Au+Au collisions and isobar collisions of $_{44}^{96}\text{Ru}+\rm{} _{44}^{96}Ru$ and $_{40}^{96}\text{Zr}+\rm{}_{40}^{96}Zr$ in the newly developed chiral anomaly transport…

High Energy Physics - Phenomenology · Physics 2024-12-13 Zilin Yuan , Anping Huang , Guannan Xie , Wen-Hao Zhou , Guo-Liang Ma , Mei Huang

In this paper, we propose a new experiment method to check contribution of chiral magnetic effect (CME). With experimental data of DIS involving transversely polarized proton, we have calculated the 3-D charge density inside the polarized…

High Energy Physics - Phenomenology · Physics 2024-12-04 Gui-Zhen Wu , Zong-Wei Zhang , Chen Gao , Yi Xu , Wei-Tian Deng

Based on a holographic far-from-equilibrium calculation of the chiral magnetic effect~(CME) in an expanding quark gluon plasma, we study collisions at various energies. We compute the time evolution of the CME current in the presence of a…

High Energy Physics - Phenomenology · Physics 2022-03-23 Casey Cartwright , Matthias Kaminski , Bjoern Schenke

Negative magnetoresistance in Dirac semimetals is typically considered as a manifestation of chiral magnetic effect (CME). The relation between these two phenomena has the status of a hypothesis and is based on sequence of assumptions. We…

Mesoscale and Nanoscale Physics · Physics 2026-01-13 R. A. Abramchuk , M. A. Zubkov

High-energy, heavy-ion collisions can create local domains of chirality-imbalanced quarks, reflecting the topological features of quantum chromodynamics. The chiral magnetic effect (CME) predicts an electric charge separation of quarks in…

Nuclear Experiment · Physics 2026-03-16 The STAR Collaboration