Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-06-17
Prog. Theor. Phys. 126 (2011), 885-901
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages, 3 figures
Scientific paper
10.1143/PTP.126.885
We investigate the next-to-leading logarithmic (NLL) order contributions of the quantum chromodynamics (QCD) for exclusive processes evaluated by Monte Carlo methods. Ambiguities of the Monte Carlo calculation based on the leading-logarithmic (LL) order approximations are pointed out. To remove these ambiguities, we take into account the NLL order terms. In a model presented in this paper, interference contributions due to the NLL order terms are included for the generation of the transverse momenta in initial-state parton radiations. Furthermore, a kinematical constraint due to parton radiation, which is also a part of the NLL order contributions, is taken into account. This method guarantees a proper phase space boundary for hard scattering cross sections as well as parton radiations. As an example, cross sections for lepton pair productions mediated by a virtual photon in hadron-hadron collisions are calculated, using the jet-calculus scheme for flavor nonsinglet quarks.
No associations
LandOfFree
NLL Order Contributions for Exclusive Processes in Jet-Calculus Scheme does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with NLL Order Contributions for Exclusive Processes in Jet-Calculus Scheme, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and NLL Order Contributions for Exclusive Processes in Jet-Calculus Scheme will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-695559