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Related papers: CME search at STAR

200 papers

Stellar flares and coronal mass ejections (CMEs) can strip planetary atmospheres, reducing the potential habitability of terrestrial planets. While flares have been observed for decades, stellar CMEs remain elusive. Extreme ultraviolet…

Solar and Stellar Astrophysics · Physics 2025-07-30 James Paul Mason , Allison Youngblood , Kevin France , Astrid M. Veronig , Meng Jin

The recent lattice calculation at finite axial chemical potential suggests that the induced current density of the chiral magnetic effect (CME) is somehow suppressed comparing with the standard analytical formula. We show in a NJL-type…

High Energy Physics - Phenomenology · Physics 2012-06-26 Zhao Zhang

We describe a new type of the Chiral Magnetic Effect (CME) that should occur in Weyl semimetals with an asymmetry in the dispersion relations of the left- and right-handed chiral Weyl fermions. In such materials, time-dependent pumping of…

Mesoscale and Nanoscale Physics · Physics 2018-03-28 Dmitri Kharzeev , Yuta Kikuchi , Rene Meyer

Gluon field configurations with nonzero topological charge induce P- and CP-odd effects. Such configurations are likely to be produced during heavy ion collisions. In this article, I will argue that in the intense (electromagnetic) magnetic…

High Energy Physics - Phenomenology · Physics 2009-06-17 Harmen J. Warringa

The chiral magnetic effect (CME), arising from the chiral anomaly and enabling a mutual conversion between magnetic topology and fermionic chirality, is a key mechanism in magnetar field evolution. Previous work by Dehman & Pons (2025)…

High Energy Astrophysical Phenomena · Physics 2026-05-11 Clara Dehman

In a multiphase transport model with the initial electric quadrupole moment, we studied and discussed the charge asymmetry ($A_{\rm ch}$) dependence of flow at varied kinematic windows in semi-central Au+Au collisions at $\sqrt{s_{\rm NN}}$…

High Energy Physics - Phenomenology · Physics 2019-12-25 Diyu Shen , Jinhui Chen , Guoliang Ma , Yu-Gang Ma , Qiye Shou , Song Zhang , Chen Zhong

In this study, we use the maximum likelihood estimator (MLE) to explore factorization and event-plane correlations in relativistic heavy-ion collisions. Our analyses incorporate both numerical simulations and publicly available data from…

As a consequence of the chiral anomaly, the hydrodynamics of hot QCD matter coupled to QED allows for a long-wavelength mode of chiral charge density, the chiral magnetic wave (CMW), that provides for a mechanism of electric charge…

High Energy Physics - Phenomenology · Physics 2015-03-05 Seyed Farid Taghavi , Urs Achim Wiedemann

We report charged-particle pair correlation analyses in the space of Delta -phi (azimuth) and Delta -eta (pseudo-rapidity), for central Au + Au collisions at sqrt{s_{NN}} = 200 GeV in the STAR detector. The analysis involves unlike-sign…

Nuclear Experiment · Physics 2008-11-26 Star Collaboration , J. Adams

Charge-dependent azimuthal particle correlations with respect to the second-order event plane in pPb and PbPb collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV have been studied with the CMS experiment at the LHC. The…

Nuclear Experiment · Physics 2017-03-29 CMS Collaboration

We consider the STU model as a gravity dual of a strongly-coupled plasma with multiple anomalous U(1) currents. In the bulk we add additional background gauge fields to include the effects of external electric and magnetic fields on the…

High Energy Physics - Theory · Physics 2011-07-21 Tigran Kalaydzhyan , Ingo Kirsch

We report on measurements of a charge-dependent flow using a novel three-particle correlator with ALICE in Pb-Pb collisions at the LHC, and discuss the implications for observation of local parity violation and the Chiral Magnetic Wave…

Nuclear Experiment · Physics 2016-05-25 ALICE Collaboration

We present the application of novel diagnostics to the spectroscopic observation of a Coronal Mass Ejection (CME) on disk by the Extreme Ultraviolet Imaging Spectrometer (EIS) on the Hinode spacecraft. We apply a recently developed line…

Solar and Stellar Astrophysics · Physics 2010-08-31 S. W. McIntosh , B. De Pontieu , R. J. Leamon

Built upon the state-of-the-art model a multiphase transport (AMPT), we develop a new module of chiral anomaly transport (CAT), which can trace the evolution of the initial topological charge of gauge field created through sphaleron…

High Energy Physics - Phenomenology · Physics 2023-11-01 Zilin Yuan , Anping Huang , Wen-Hao Zhou , Guo-Liang Ma , Mei Huang

An anisotropic thermal plasma phase of a strongly coupled gauge theory can be holographically modelled by an anisotropic AdS black hole. The temperature and anisotropy parameter of the AdS black hole background of interest [1] is specified…

High Energy Physics - Theory · Physics 2015-11-12 Mohammad Ali-Akbari , Seyed Farid Taghavi

On 13 February 2009, a coronal wave -- CME -- dimming event was observed in quadrature by the STEREO spacecraft. We analyze this event using a three-dimensional, global magnetohydrodynamic (MHD) model for the solar corona. The numerical…

Solar and Stellar Astrophysics · Physics 2014-11-20 Ofer Cohen , Gemma D. R. Attrill , Ward B. Manchester , Meredith J. Wills-Davey

We investigate how a weak coronal mass ejection (CME) launched on 2016 October 8 without obvious signatures in the low corona produced a relatively intense geomagnetic storm. Remote sensing observations from SDO, STEREO and SOHO and in situ…

Space Physics · Physics 2018-06-20 Wen He , Ying D. Liu , Huidong Hu , Rui Wang , Xiaowei Zhao

We derive a nonlocal effective Lagrangian for the chiral magnetic effect. An electric field is generated by winding number fluctuations of the nonabelian gauge field in the presence of a strong magnetic field. We estimate the magnitude of…

High Energy Physics - Phenomenology · Physics 2010-12-23 Berndt Müller , Andreas Schäfer

We show the preliminary charged-particle pair correlation analyses presented in a poster session at the 2006 International Quark Matter Conference in Shanghai China. The correlation analysis space of $\Delta \phi$ (azimuth) and $\Delta…

Nuclear Experiment · Physics 2008-11-26 R. S. Longacre

In this paper, We report the interplanetary effects of a fast coronal mass ejection (CME) associated with the intense X2.7 flare that occurred on 05 May 2015. The near-Sun signatures of the CME at low-coronal heights $<$2 {R$_{\odot}$} are…

Solar and Stellar Astrophysics · Physics 2016-06-01 Abhishek Johri , P. K. Manoharan
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