High-energy QCD asymptotics of photon-photon collisions
S. J. Brodsky∇, V. S. Fadin†, V. T. Kim, L. N. Lipatov, G. B. Pivovarov
∇SLAC, Stanford, CA 94309, USA
†Budker Institute for Nuclear Physics, 630090 Novosibirsk, Russia
*CERN, CH-1211, Switzerland
St.Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
Institute for Nuclear Research, 117312 Moscow, Russia
The high-energy behaviour of the total cross
section for highly virtual photons, as predicted by the
BFKL equation at next-to-leading order (NLO) in QCD, is discussed.
The NLO BFKL predictions, improved
by the BLM optimal scale setting, are in good agreement
with recent OPAL and L3 data at CERN LEP2.
NLO BFKL predictions for future linear colliders are presented.