Dresden 2013 – scientific programme
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T: Fachverband Teilchenphysik
T 24: Quantenfeldtheorie 2
T 24.2: Talk
Wednesday, March 6, 2013, 17:00–17:15, WIL-C129
Exact solutions of particle wavefunctions in the Strong fields at the Interaction Point of future linear colliders — •Anthony Hartin1, Gudrid Moortgat-Pick1, 2, and Stefano Porto2 — 1DESY FLC, Hamburg, Germany — 2Institute for Theoret. Physics, University of Hamburg, Germany
Planned, future linear colliders will collide intense charged particle bunches which exhibit very strong electromagnetic fields within which all physics processes take place. The field strengths seen by the relativistic particles can exceed the Schwinger critical field at which the vacuum is polarised. In contrast to previous and existing colliders in which the field strength is small enough to be neglected except in first order processes like Bremsstrahlung, the Furry interaction picture which utilises exact wavefunction solutions in the presence of the external fields, should be employed. Here we present new Furry picture solutions in the presence of two nearly anticollinear, constant crossed fields - those of the interacting bunches. These new solutions are used to calculate scattering cross-sections and are compared to those of the normal interaction picture.