1.8k citations · 6.9k across the 160 of their papers we have counts for
6 papers · 2 filters
Transition Distribution Amplitudes for gamma* gamma collisions
J. P. Lansberg, B. Pire, L. Szymanowski
We study the exclusive production of pi-pi and rho-pi in hard gamma* gamma scattering in the forward kinematical region where the virtuality of one photon provides us with a hard s…
Production of a pion in association with a high-Q2 dilepton pair in antiproton-proton annihilation at GSI-FAIR
J. P. Lansberg, B. Pire, L. Szymanowski
We evaluate the cross section for anti-p p -> l+ l- pi0 in the forward direction and for large lepton pair invariant mass. In this kinematical region, the leading-twist amplitude f…
Transition Distribution Amplitudes
J. P. Lansberg, B. Pire, L. Szymanowski
We give a brief overview of the theoretical status of the Transition Distribution Amplitudes and discuss their experimental near future.
Possible solution of the J/psi production puzzle
H. Haberzettl, J. P. Lansberg
We argue that the s-channel cut contribution to J/psi hadroproduction can be significantly larger than the usual cut contribution of the color-singlet mechanism, which is known to…
Hadroproduction of J/psi and Upsilon in association with a heavy-quark pair
P. Artoisenet, J. P. Lansberg, F. Maltoni
We calculate the cross sections for the direct hadroproduction of J/psi and Upsilon associated with a heavy-quark pair of the same flavour at leading order in alpha_S and v in NRQC…
Hard exclusive electroproduction of a pion in the backward region
J. P. Lansberg, B. Pire, L. Szymanowski
We study the scaling regime of pion electroproduction in the backward region, eN->e'N'pi. We compute the leading-twist amplitude in the kinematical region, where it factorises into…