Scenario for Ultrarelativistic Nuclear Collisions: IV. Effective quark mass at the early stage

Details Scenario for Ultrarelativistic Nuclear Collisions: IV. Effective quark mass at the early stage Scenario for Ultrarelativistic Nuclear Collisions: IV. Effective quark mass at the early stage

2000-07-26

arxiv.org/abs/hep-ph/0007302v1

Phys.Rev. C63 (2001) 044904

Physics

High Energy Physics

High Energy Physics - Phenomenology

25 pages, 6 psfigures, RevTeX

Scientific paper

10.1103/PhysRevC.63.044904

Using the framework of wedge dynamics, we compute the effective transverse mass of a soft quark mode propagating in the expanding background of hard quarks and gluons created at the earliest time of the collision. We discover that the wedge dynamics does not require any external infrared or collinear cut-off. The effective mass is produced mainly due to the forward quark-quark scattering mediated by the longitudinal (in sense of Gauss' law) magnetic fields. Contribution of the radiation field is parametrically suppressed.

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