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22 papers · 2 filters
Comment on the Pion Pole Part of the Light-by-Light Contribution to the Muon
Johan Bijnens, Elisabetta Pallante, Joaquim Prades
We comment on the recent calculations of the pion pole part of the light-by-light contribution to the muon anomalous magnetic moment and we point out where the analysis in our prev…
Correcting the Colour-Dipole Cascade Model with Fixed Order Matrix Elements
Leif Lonnblad
An algorithm is presented in which the Colour-Dipole Cascade Model as implemented in the Ariadne program is corrected to match the fixed order tree-level matrix elements for e+e- -…
Probing CPT violation with atmospheric neutrinos
S. Skadhauge
We investigate the recently suggested scheme of independent mass matrices for neutrinos and antineutrinos. Such a CPT violating scheme is able to account for all neutrino data with…
A Simple Model for the BFKL-DGLAP Transition
Gösta Gustafson
A simple model for the gluon structure function at small is presented, which gives an intuitive picture of the transition between the DGLAP and B FKL regimes.
Heavy Quark production at the TEVATRON and HERA using k_t-factorization with CCFM evolution
H. Jung
The application of k_t-factorization supplemented with the CCFM small-x evolution equation to heavy quark production at the TEVATRON and at HERA is discussed. The bb_bar production…
A polarized version of the CCFM equation for gluons
Martin Maul
A derivation for a polarized CCFM evolution equation which is suitable to describe the scaling behavior of the the unintegrated polarized gluon density is given. We discuss the pro…