11 papers
Vacuum polarization in two-dimensional static spacetimes and dimensional reduction
Roberto Balbinot, Alessandro Fabbri, Piero Nicolini +1
We obtain an analytic approximation for the effective action of a quantum scalar field in a general static two-dimensional spacetime. We apply this to the dilaton gravity model res…
The Feynman-Wilson gas and the Lund model
B. Andersson, G. Gustafson, M. Ringner +1
We derive a partition function for the Lund fragmentation model and compare it with that of a classical gas. For a fixed rapidity ``volume'' this partition function corresponds to…
Is there screwiness at the end of the QCD cascades?
B. Andersson, G. Gustafson, J. Hakkinen +2
We discuss what happens at the end of the QCD cascades. We show that, with just a few reasonable assumptions, the emission of soft gluons is constrained to produce an ordered field…
Diffusion and the BFKL Pomeron
J. R. Forshaw, P. J. Sutton
We study the high energy behaviour of elastic scattering amplitudes within the leading logarithm approximation. In particular, we cast the amplitude in a form which allows us to st…
Constraints on gluon evolution at small x
J. Kwiecinski, A. D. Martin, P. J. Sutton
The BFKL and the unified angular-ordered equations are solved to determine the gluon distribution at small . The impact of kinematic constraints is investigated. Predictions are…
The description of F2 at small x incorporating angular ordering
J. Kwiecinski, A. D. Martin, P. J. Sutton
We study the perturbative QCD description of the HERA measurements of using a gluon distribution that is obtained from an evolution incorporating angular ordering of…