Perturbative dynamics of strangeness production at RHIC

Chang, D.; Bass, Steffen A.; Srivastava, D. K.

doi:10.1088/0954-3899/31/6/047

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…The first part is angular scattering, and this is straightforwardly added to the electron-ion term, C m n,i , by adding a modification of order 1/Z to ν(p). The other part is a second order differential in magnitude of momentum, representing energy transfer between electrons, which can be included implicitly with Chang-Cooper differencing [60].…”

Section: Collisions Between Electrons C Mmentioning

confidence: 99%

Fast electron transport in laser-produced plasmas and the KALOS code for solution of the Vlasov–Fokker–Planck equation

Bell¹,

Robinson²,

Sherlock³

et al. 2006

Plasma Phys. Control. Fusion

101

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In solid targets irradiated by short pulse high intensity lasers, fast electrons have collision times longer than the laser pulse duration and mean free paths much larger than the radius of the laser spot. In these conditions, fast electron transport is dominated by electric and magnetic field. Although the fast electrons are collisionless, collisions of background electrons determine the ability of the background plasma to carry the return current which balances the fast electron current. Hence collisions are important even in this regime. A successful numerical simulation has to be able to model a plasma in which some electrons are collisionless and others are strongly collisional. An expansion of the electron distribution in spherical harmonics in momentum space is well suited to this, and we describe the formulation of the Vlasov-Fokker-Planck equation in terms of spherical harmonics and its solution in our KALOS code. We review the physics that must be modelled in a numerical simulation of fast electron transport and then describe KALOS.

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Section: Collisions Between Electrons C Mmentioning

confidence: 99%

Fast electron transport in laser-produced plasmas and the KALOS code for solution of the Vlasov–Fokker–Planck equation

Bell¹,

Robinson²,

Sherlock³

et al. 2006

Plasma Phys. Control. Fusion

101

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show abstract

“…In the acceleration zone, we use the method of Chang & Copper (1970) to solve the equations (3). In the radiation zone, we use the method of Chiaberge & Ghisellini (1999) to solve the equations (7), (9) and (10).…”

Section: Numeric Methodsmentioning

confidence: 99%

A self-consistent leptonic–hadronic interpretation of the electromagnetic and neutrino emissions from blazar TXS 0506+056

Cao

Yang

et al. 2020

Publications of the Astronomical Society of Japan

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The potential association between the blazar TXS 0506+056 and the neutrino event IceCube-170922A provides a unique opportunity to study the possible physical connection between the high-energy photons and neutrinos. We explore the correlated electromagnetic and neutrino emissions of blazar TXS 0506+056 by a self-consistent leptonic-hadronic model, taking into account particle stochastic acceleration and all relevant radiative processes self-consistently. The electromagnetic and neutrino spectra of blazar TXS 0506+056 are reproduced by the proton synchrotron and hybrid leptonic-hadronic models based on the proton-photon interactions. It is found that the hybrid leptonic-hadronic model can be used to better explain the observed X-ray and γ-ray spectra of blazar TXS 0506+056 than the proton synchrotron model. Moreover, the predicted neutrino spectrum of the hybrid leptonic-hadronic model is closer to the observed one compared to the proton synchrotron model. We suggest that the hybrid leptonic-hadronic model is more favored if the neutrino event IceCube-170922A is associated with the blazar TXS 0506+056.

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“…To obtain the self-consistent relativistic electron energy distribution, we must solve equation (5) numerically. In the numerical calculations, we adopt the numerical method given by Park & Petrosian (1996), which was first proposed by Chang & Copper (1970). The method is a finite difference scheme, which uses the centred difference of the diffusive term, and a weighted difference for the advective term.…”

Section: Self-consistent Ssc+ic/cmb/ebl Model In the Extended Jet Undmentioning

confidence: 99%

Non-variable TeV emission from the extended jet of a blazar in the stochastic acceleration scenario: the case of the hard TeV emission of 1ES 1101-232

Yan

Zeng

Zhang

2012

Monthly Notices of the Royal Astronomical Society

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The detections of X‐ray emission from the kiloparsec‐scale jets of blazars and radio galaxies could imply the existence of high‐energy electrons in these extended jets, and these electrons could produce high‐energy emission through the inverse Compton (IC) process. In this paper, we study the non‐variable hard TeV emission from a blazar. The multiband emission consists of two components: (i) the traditional synchrotron self‐Compton (SSC) emission from the inner jet; (ii) the emission produced via SSC and IC scattering of cosmic microwave background (CMB) photons (IC/CMB) and extragalactic background light (EBL) photons by relativistic electrons in the extended jet under the stochastic acceleration scenario. Such a model is applied to 1ES 1101–232. The results indicate the following. (i) The non‐variable hard TeV emission of 1ES 1101–232, which is dominated by IC/CMB emission from the extended jet, can be reproduced well by using three characteristic values of the Doppler factor (δD = 5, 10 and 15) for the TeV‐emitting region in the extended jet. (ii) In the cases of δD = 15 and 10, the physical parameters can achieve equipartition (or quasi‐equipartition) between the relativistic electrons and the magnetic field. In contrast, the physical parameters largely deviate from equipartition for the case of δD = 5. Therefore, we conclude that the TeV emission region of 1ES 1101–232 in the extended jet should be moderately or highly beamed.

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Perturbative dynamics of strangeness production at RHIC

Cited by 7 publications

References 6 publications

Fast electron transport in laser-produced plasmas and the KALOS code for solution of the Vlasov–Fokker–Planck equation

Fast electron transport in laser-produced plasmas and the KALOS code for solution of the Vlasov–Fokker–Planck equation

A self-consistent leptonic–hadronic interpretation of the electromagnetic and neutrino emissions from blazar TXS 0506+056

Non-variable TeV emission from the extended jet of a blazar in the stochastic acceleration scenario: the case of the hard TeV emission of 1ES 1101-232

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