Unruh gamma radiation at RHIC?

Abstract

Varying the proposition that acceleration itself would simulate a thermal environment, we investigate the semiclassical photon radiation as a possible telemetric thermometer of accelerated charges. Based on the classical Jackson formula we obtain the equivalent photon intensity spectrum stemming from a constantly accelerated charge and demonstrate its resemblances to a thermal distribution for high transverse momenta. The inverse transverse slope differs from the famous Unruh temperature: it is larger by a factor of pi. We compare the resulting direct photon spectrum with experimental data for AuAu collisions at RHIC and speculate about further, analytically solvable acceleration histories.

LaTeX 5 pages, 2 eps figures, PACS numbers: 24.10.Pa, 25.75.Ag, 25.20.Lj Keywords: Thermal models, Unruh temperature, bremsstrahlung, photon spectra

References in corpus (3)

• The Color Glass Condensate
• Thermal Hadronization and Hawking-Unruh Radiation in QCD
• Enhancement of thermal photon production in event-by-event hydrodynamics

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• Anisotropy of Low Energy Direct Photons in Relativistic Heavy Ion Collisions
• Unruh effect and information entropy approach
• Thermal Larmor radiation
• Illusory Flow in Radiation from Accelerating Charge
• Elliptic flow due to radiation in heavy-ion collisions
• Electron response to radiation under linear acceleration: classical, QED and accelerated frame predictions
• Unruh effect and condensate in and out of an accelerated vacuum