Euclidean Field Theory and Singular Classical Field Configurations
نویسنده
چکیده
Euclidean field theory on four dimensional sphere is suggested for the study of high energy multiparticle production. The singular classical field configurations are found in scalar φ and SU(2) gauge theories and the cross section of 2→ n is calculated. It is shown, that the cross section has a maximum at the energy compared to the sphaleron mass. E-mail address: [email protected]
منابع مشابه
Instantons at Angles
We find solutions of the Yang-Mills field equations with gauge group SU(2) in 4k dimensions which have the interpretation of four-dimensional instantons at angles. These configurations satisfy a BPS-like condition which arises in the context of two-dimensional (4,0)-supersymmetric sigma models. Moreover we show that these solutions are examples of Hermitian-Einstein connections on E. In the pas...
متن کاملar X iv : h ep - l at / 9 81 10 25 v 1 1 9 N ov 1 99 8 1 Quantum Spins and Quantum Links : The D - Theory Approach to Field Theory
A new non-perturbative approach to quantum field theory is proposed. Instead of performing a path integral over configurations of classical fields, D-theory works with discrete quantized variables. Classical spin fields are replaced by quantum spins, and classical gauge fields are replaced by quantum links. The classical fields of a d-dimensional quantum field theory reappear as low-energy effe...
متن کاملQuantum Spins and Quantum Links: The D-Theory Approach to Field Theory
A new non-perturbative approach to quantum field theory is proposed. Instead of performing a path integral over configurations of classical fields, D-theory works with discrete quantized variables. Classical spin fields are replaced by quantum spins, and classical gauge fields are replaced by quantum links. The classical fields of a d-dimensional quantum field theory reappear as low-energy effe...
متن کاملNontopological magnetic monopoles and new magnetically charged black holes.
The existence of nonsingular classical magnetic monopole solutions is usually understood in terms of topologically nontrivial Higgs field configurations. We show that finite energy magnetic monopole solutions also exist within a class of purely Abelian gauge theories containing charged vector mesons, even though the possibility of nontrivial topology does not even arise. provided that certain r...
متن کاملNonlocal instantons and solitons in string models
We study a class of nonlocal systems which can be described by a local scalar field diffusing in an auxiliary radial dimension. As examples p-adic, open and boundary string field theory are considered on Minkowski, Friedmann–Robertson–Walker and Euclidean metric backgrounds. Starting from distribution-like initial field configurations which are constant almost everywhere, we construct exact and...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1997