Bilha Segev (1963-2005)
● TITLE: A Light-Fronts Approach to a Two-Center Time-Dependent Dirac Equation
● AUTHORS: Segev, B. (1963-2005), Wells, J.C.
● SOURCE: Foundations of Physics, v. 31, No. 6, pp. 993-1015 ( June 2001).
● LANGUAGE: English.
● ABSTRACT: The two center time dependent Dirac equation, for an electron in the external field of two colliding ultrarelativistic heavy ions is considered. In the ultrarelativistic limit, the ions are practically moving at the speed of light and the electromagnetic fields of the ions are confined to the light fronts by the extreme Lorentz contraction and by the choice of gauge, designed to remove the long-range Coulomb effects. An exact solution to the ultrarelativistic limit of the two-center Dirac equation is found by using light-front variables and a light-fronts representation. Previously unexplained experimental results obtained at CERN's SPS are explained in this way and predictions are made as to where one should look, in momentum space, and in space-time, if one wants to study and observe non-perturbative electromagnetic pair-production effects in extremely relativistic heavy-ion collisions.

24 references.

● COMMENT: IARD2000 Conference.

● COMMENT: Subject: Relativistic Chemistry.

● LINKS:
FULL PAPER (link to journal).
LINK to Bilha Segev's CV.
LINK to obituary on Bilha Segev Text only, in English.
LINK to the original obituary on Bilha Segev Text in English, with her photograph.
The original file includes three obituaries. The second obituary is on Bilha Segev, in English.

● COMMENT: You may be also interested in the lecture:
"Relativistic Dynamics in Basic Chemistry"
given in IARD2006 Conference
and published in "Foundations of Physics," v. 37 (May 2007).



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