20 citations · 78 across the 7 of their papers we have counts for
7 papers
Conserved charges and soliton solutions in affine Toda theory
Michael Freeman
We study the conserved charges of affine Toda field theories by making use of the conformally invariant extension of these theories. We compute the values of all charges for the si…
Parafermions, Strings and their BRST Charges
Michael Freeman, Peter West
We show how to relate the parafermions that occur in the string to the standard construction of parafermions. This result is then used to show that one of the screening charg…
A W-String Realization of the Bosonic String
Nathan Berkovits, Mike Freeman, Peter West
It has recently been shown that the ordinary bosonic string can be represented by a special background of N=1 or N=2 strings. In this paper, it will be shown that the bosonic strin…
strings, parafermions and the Ising model
M. Freeman, P. West
We show that any covariant scattering amplitude of the string will contain, as part of its integrand, a factor that obeys the differential equations satisfied by an Ising mod…
The covariant scattering and cohomology of strings
Michael Freeman, Peter West
A general formalism for covariant string scattering is given. It is found necessary to use screening charges that are constructed from the fields including ghosts. The…
string scattering
M. D. Freeman, P. West
The group theoretic method is extended to include fields with a background charge. This formalism is used to compute the tree level scattering for strings. The scattering amp…