AN ALGORITHM FOR COMPUTING 4-RAMOND VERTICES AT ARBITRARY LEVEL

Authors
ENGBERG N NILSSON BEW SUNDELL P
Citation
N. Engberg et al., AN ALGORITHM FOR COMPUTING 4-RAMOND VERTICES AT ARBITRARY LEVEL, Nuclear physics. B, 404(1-2), 1993, pp. 187-214
Citations number
41
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. B → ACNP
ISSN journal
05503213
Volume
404
Issue
1-2
Year of publication
1993
Pages
187 - 214
Database
ISI
SICI code
0550-3213(1993)404:1-2<187:AAFC4V>2.0.ZU;2-H
Abstract
We perform the sewing of two (dual) Ramond reggeon vertices and derive an algorithm by means of which the so obtained four-Ramond reggeon ve rtex may be explicitly computed at arbitrary oscillator (mass) level. A closed form of the four-vertex is then deduced on the basis of a com parison to all terms obtained by sewing, that contain only level zero and one oscillators. Results are presented for both complex fermions a nd for the previously studied case of real fermions.