Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-10-24
J.Phys.A41:164049,2008
Physics
High Energy Physics
High Energy Physics - Theory
Based on talk by O.S. at QFEXT07, Leipzig Sept. 2007. 8 pages
Scientific paper
10.1088/1751-8113/41/16/164049
We investigate an extension to the phase shift formalism for calculating
one-loop determinants. This extension is motivated by requirements of the
computation of Z-string quantum energies in D=3+1 dimensions. A subtlety that
seems to imply that the vacuum polarization diagram in this formalism is
(erroneously) finite is thoroughly investigated.
Graham Noah
Quandt Markus
Schroeder Oliver
Weigel Herbert
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