4 papers
The Stability of Primordial Magnetic Fields Produced by Phase Transitions
A. P. Martin, A. C. Davis
Primordial magnetic fields seem to be a generic relic of phase transitions in the early universe. We consider a primordial electromagnetic field formed as a result of a second-orde…
Global Strings and the Aharonov-Bohm Effect
A. C. Davis, A. P. Martin
When a fermion interacts with a global vortex or cosmic string a solenoidal "gauge" field is induced. This results in a non-trivial scattering cross-section. For scalars and non-re…
Charged Particle Scattering from Electroweak and Semi-Local Strings
A. C. Davis, A. P. Martin, N. Ganoulis
The scattering of a charged fermion from an electroweak or semi-local string is investigated and a full solution obtained for both massive and massless cases. For the former, with…
A Global Analogue of the Aharonov-Bohm Effect
A. C. Davis, A. P. Martin
This paper has been heavily revised, the final results now being contained in hep-ph/9311202 and hep-ph/9311203.