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High energy proton-nucleus (pA) collisions provide an important constraint on the study of the chiral magnetic effect in QCD matter. Naively, in pA collisions one expects no correlation between the orientation of event plane as…

Nuclear Theory · Physics 2018-02-21 Dmitri Kharzeev , Zhoudunming Tu , Aobo Zhang , Wei Li

In this short article we discuss the properties of electromagnetic fields in heavy-ion collisions and consequences for observables. We address quantitatively the issue of the magnetic field lifetime in a collision including the electric and…

High Energy Physics - Phenomenology · Physics 2015-06-15 L. McLerran , V. Skokov

A case of non-minimal couplings between gravity and electromagnetic fields is presented. The field equations are worked out in the language of exterior differential forms. An exact charge screening class of solutions is given with a…

General Relativity and Quantum Cosmology · Physics 2020-12-02 Tekin Dereli , Yorgo Senikoglu

The Multi-Phase Transport model (AMPT) is employed to predict Symmetric Correlations (SC), Asymmetric Correlations (ASC), Normalized Symmetric Correlations (NSC), and Normalized Asymmetric Correlations (NASC) in $^{96}Ru+^{96}Ru$ and…

Nuclear Theory · Physics 2024-01-10 Niseem Magdy

Flow-like signals including the ridge structure observed in small collision systems that are similar to those in large collision systems have led to questions about the onset of collectivity in nuclear collisions. In this study, we use the…

Nuclear Theory · Physics 2022-06-22 Xin-Li Zhao , Zi-Wei Lin , Liang Zheng , Guo-Liang Ma

We propose a scenario where the pattern of the recently observed charge-dependent azimuthal correlations can be understood qualitatively. This is based on the cluster picture and the assumption that the charged hadrons that flow outward…

Nuclear Theory · Physics 2013-05-30 K. F. Liu

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

The time-evolution and space-distribution of internal electromagnetic fields in heavy-ion reactions at beam energies between 200 and 2000 MeV/nucleon are studied within an Isospin-dependent Boltzmann-Uhling-Uhlenbeck transport model IBUU11.…

Nuclear Theory · Physics 2015-05-28 Li Ou , Bao-An Li

The field of heavy ion physics is at a crossroads in understanding experimental signatures of collectivity in small collision systems, p + p and p(d/3He) + A, at RHIC and the LHC. A wealth of data obtained in the latter class of asymmetric…

Nuclear Theory · Physics 2019-02-20 J. L. Nagle , J. Orjuela Koop

A new subevent cumulant method was recently developed, which can significantly reduce the non-flow contributions in long-range correlations for small systems compared to the standard cumulant method. In this work, we study multi-particle…

High Energy Physics - Phenomenology · Physics 2018-09-13 Mao-Wu Nie , Peng Huo , Jiangyong Jia , Guo-Liang Ma

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

First results on the measurement of localized fluctuations in the multiplicity of charged particles and photons produced in central 158 A GeV Pb+Pb collisions are presented. The charged versus neutral correlations in common phase space…

Nuclear Experiment · Physics 2008-11-26 WA98 Collaboration , M. M. Aggarwal , A. Agnihotri , Z. Ahammed

From the events generated from the MC code of a multi-phase transport (AMPT) model with string melting, the properties of multiplicity fluctuations of charged particles in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=\rm{~2.76 \,TeV}$ are…

High Energy Physics - Phenomenology · Physics 2018-10-31 Rohni Sharma , Ramni Gupta

We extend previous holographic studies of the Chiral Magnetic Effect (CME) by incorporating a time-dependent magnetic field. Various magnetic field profiles proposed in the literature are implemented, and their impact on the CME signal is…

High Energy Physics - Phenomenology · Physics 2025-03-14 Sebastian Grieninger , Sergio Morales-Tejera , Pau G. Romeu

We compute the electromagnetic fields generated in heavy-ion collisions by using the HIJING model. Although after averaging over many events only the magnetic field perpendicular to the reaction plane is sizable, we find very strong…

Nuclear Theory · Physics 2013-05-30 Wei-Tian Deng , Xu-Guang Huang

Observations of long rang azimuthal correlations in small collision systems (p+p/A) have triggered an enormous excitement in the heavy-ion community. However, it is presently unclear to what extent the experimentally observed correlations…

High Energy Physics - Phenomenology · Physics 2018-03-14 Moritz Greif , Carsten Greiner , Björn Schenke , Sören Schlichting , Zhe Xu

Using an anomalous transport model for massless quarks and antiquarks, we study the effect of a magnetic field on the elliptic flows of quarks and antiquarks in relativistic heavy ion collisions. With initial conditions from a blast wave…

Nuclear Theory · Physics 2016-10-19 Yifeng Sun , Che-Ming Ko , Feng Li

The correlations of electric currents in hot non-Abelian plasma are responsible for the experimental manifestations of the chiral magnetic effect (CME) in heavy-ion collisions. We evaluate these correlations using holography, and show that…

High Energy Physics - Phenomenology · Physics 2023-12-19 Sebastian Grieninger , Dmitri E. Kharzeev

In non-central heavy-ion collisions unprecedented strong magnetic fields, of the order of 10$^{18}$ Gauss, are expected to be produced. The interplay of such fields with QCD anomalies in the Quark--Gluon Plasma (QGP) has been predicted to…

Nuclear Experiment · Physics 2017-09-19 Jacopo Margutti

We consider the effect of the chromo-electromagnetic field fluctuations in addition to the collisional as well as the radiative energy loss suffered by heavy quarks while propagating through the hot and densed deconfined medium of quarks…

High Energy Physics - Phenomenology · Physics 2018-09-26 Ashik Ikbal Sheikh , Zubayer Ahammed , Prashant Shukla , Munshi G. Mustafa