Probe for the strong parity violation effects at RHIC with three particle correlations

Voloshin, S. A.

doi:10.1007/s12648-011-0137-0

Cited by 27 publications

(32 citation statements)

References 10 publications

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“…As for the external magnetic filed, we set it to be B 0 = m 2 π × 10 as a trial. Note that this value of B 0 is still far stronger than that observed in the RHIC experiment [1][2][3][4]. From the figure, it turns out that σ is a rapidly increasing function of T and show the obvious increases beyond T ≈ 200 MeV.…”

Section: Numerical Results and Discussionmentioning

confidence: 68%

Electrical conductivity of quark matter at finiteTunder external magnetic field

Nam

2012

Phys. Rev. D

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We investigate the electrical conductivity (σ) of quark matter via the Kubo formula at finite temperature and zero quark density (T = 0, µ = 0) in the presence of an external strong magnetic field. For this purpose, we employ the dilute instanton-liquid model, taking into account its temperature modification with the trivial-holonomy caloron distribution. By doing that, the momentum and temperature dependences for the effective quark mass and model renormalization scale are carefully evaluated. From the numerical results, it turns out that σ ≈ (0.02 ∼ 0.15) fm −1 for T = (0 ∼ 400) MeV with the relaxation time τ = (0.3 ∼ 0.9) fm. In addition, we also parameterize the electrical conductivity as σ/T ≈ (0.46, 0.77, 1.08, 1.39) CEM for τ = (0.3, 0.5, 0.7, 0.9) fm, respectively. These results are well compatible with other theoretical estimations, including those from the lattice QCD simulations. It also turns out that the external magnetic field plays only a minor role for σ even for the very strong one B0 ∼ m 2 π × 10 and becomes relatively effective for T 200 MeV. Moreover, we compute the soft photon emission rate from the quark-gluon plasma, using the electrical conductivity calculated.

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Section: Numerical Results and Discussionmentioning

confidence: 68%

Electrical conductivity of quark matter at finiteTunder external magnetic field

Nam

2012

Phys. Rev. D

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“…Similarly, the chiral and the gravitational anomalies also give rise to anomalous heat transport in the presence of magnetic field and vorticity respectively. On the experimental side, all of these phenomena can, in principle, be realized in the Heavy Ion Collision experiments, although experimental evidence is controversial at present [12][13][14].…”

Section: Jhep10(2014)092mentioning

confidence: 99%

“…13 Therefore in this specific model the chemical potential and the mass gap Λ QCD will be tied to each other. This unphysical fact is the price one has to pay to work with an analytic solution, which is a crucial technical simplification for the calculations in the next sections.…”

Section: Jhep10(2014)092mentioning

confidence: 99%

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(Non)renormalization of anomalous conductivities and holography

Gürsoy

Jansen

2014

J. High Energ. Phys.

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Abstract:The chiral magnetic and the chiral vortical effects are recently discovered phenomena arising from chiral gauge and gravitational anomalies that lead to generation of electric currents in presence of magnetic field or vorticity. The magnitude of these effects is determined by the anomalous conductivities. These conductivities can be calculated by the linear response theory, and in the strong coupling limit this calculation can be carried out by the holographic techniques. Earlier calculations in case of conformal field theories indicate non-renormalization of these conductivities where the holographic calculation agrees with the free field limit. We extend this holographic study to non-conformal theories exhibiting mass-gap and confinement-deconfinement type transitions in a holographic model based on the analytic black hole solution of Gao and Zhang. We show that radiative corrections are also absent in these non-conformal theories confirming indirect arguments of Jensen et al. in a direct and non-trivial fashion. There are various indications in field theory that such radiative corrections should arise when contribution of dynamical gluon fields to the chiral anomaly is present. Motivated by this, we seek for such corrections in the holographic picture and argue that such corrections indeed arise through mixing of the background and its fluctuations with the axion and the one-form fields that couple to the flavor and probe gauge branes through the Wess-Zumino terms. These corrections are non-vanishing when the flavor to color ratio N f /N c is finite, therefore they are only visible in the Veneziano limit at large N c .

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“…Presence of such anomaly-induced electric and chiral currents in the QGP might have imprints on the spectra of charged hadrons observed in the heavy ion collisions. Such experimental evidence is still controversial at present [10,11]. It is important to note that anomalous transport are also observed [12] in the so called the Weyl semi-metals which are recently realized in the laboratory [13].…”

Section: Introductionmentioning

confidence: 99%

Horizon universality and anomalous conductivities

Gürsoy

Tarrío

2015

J. High Energ. Phys.

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We show that the value of chiral conductivities associated with anomalous transport is universal in a general class of strongly coupled quantum field theories that admit a gravitational holographic dual in the large N limit. Our result only applies to theories in the presence of external gauge fields with no dynamical gluon fields. On the gravity side the result follows from near horizon universality of the fluctuation equations, similar to the holographic calculation of the shear viscosity.

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Probe for the strong parity violation effects at RHIC with three particle correlations

Cited by 27 publications

References 10 publications

Electrical conductivity of quark matter at finiteTunder external magnetic field

Electrical conductivity of quark matter at finiteTunder external magnetic field

(Non)renormalization of anomalous conductivities and holography

Horizon universality and anomalous conductivities

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