10 research outputs found
A Selective Review of Recent Developments in the Economic Growth Literature
The role of institutions in the process of economic growth and development has generated considerable interest among researchers over the past few decades. In particular, incorporating institutional variables into the established growth theories and empirics involves understanding the impact and mechanisms through which institutions affect growth. In surveying recent developments in the economic growth literature, this review pays attention to the resurgent institutionalist research trend and its implications for growth theory and empirical research on growth. Policy issues primarily focused on Asian Pacific developing countries are highlighted. Copyright © 2007 The Author Journal compilation © 2007 Crawford School of Economics and Government, The Australian National University and Blackwell Publishing Asia Pty Ltd. .
Measurement of the triple-gluon vertex from 4-jet events at LEP
From the combined data of 1990 and 1991 of the DELPHI experiment at LEP, 13057 4-jet events are obtained and used for determining the contribution of the triple-gluon vertex. The relevant variables are the generalized Nachtmann Reiter angle θNR* and the opening angle of the two least energetic jets. A fit to their two-dimensional distribution yields Mathematical expression where CA/CF is the ratio of the coupling strength of the triple-gluon vertex to that of gluon bremsstrahlung from quarks, and NC/NA, the ratio of the number of quark colours to the number of gluons. This constitutes a convincing model-independent proof of the existence of the triple-gluon vertex, since its contribution is directly proportional to CA/CF. The results are in agreement with the values expected from QCD:CA/CF=2.25, and NC/NA=3/8. © 1993 Springer-Verlag