Dual coherent particle emission as generalised Cherenkov-like effect in high energy particle collisions

In this paper we introduce a new kind of nuclear/hadronic coherent particle production mechanism in high-energy collisions called \emph{dual coherent particle emission (DCPE)} which takes place when the phase velocities of the emitted particle v_{Mph} and that of particle source v_{B_1ph} satisfy the dual coherence condition: v_{Mph} <= v_{B_1ph}^-1. The general signatures of the DCPE in the nuclear and hadronic media are established and some experimental evidences are given.Comment: 5 pages, 5 eps figs., revtex4 styl

Dual coherent particle emission as generalized two-component Cherenkov-like effect

In this Letter we introduce a new kind of coherent particle production mechanism called dual coherent particle emission (DCPE) as generalized two-component Cherenkov-like effect, which takes place when the phase velocity of emitted particle v_{Mph} and the particle source phase velocity v_{B_1ph} satisfy a specific DCPE condition: v_{Mph} <= v_{B_1ph}^{-1}. The general signatures of the DCPE in dielectric, nuclear and hadronic media are established and some experimental evidences are presented.Comment: 12 pages, 4 fig

Erratum (astro-ph/0510172): Robust Limits on Lorentz Violation from Gamma-Ray Bursts

We correct the fitting formula used in refs. [1,2] to obtain a robust limit on a violation of Lorentz invariance that depends linearly on the photon energy. The correction leads to a slight increase of the limit on the scale of the violation, to M > 1.4 x 10^{16} GeV.Comment: four pages latex, two eps figures, uses special macro