Nucleon-to-pion transition distribution amplitudes: a challenge for PANDA

Abstract

Baryon-to-meson Transition Distribution Amplitudes (TDAs) appear as building blocks in the collinear factorized description of amplitudes for a class of hard exclusive reactions, prominent examples being hard exclusive pion electroproduction off a nucleon in the backward region and baryon-antibaryon annihilation into a pion and a lepton pair or a charmonium. Baryon-to-meson TDAs extend both the concepts of generalized parton distributions (GPDs) and baryon distribution amplitudes (DAs) encoding valuable complementary information on the hadronic structure. We review the basic properties of baryon-to-meson TDAs and discuss the perspectives for the experimental access with the PANDA detector.

6 pages, 4 figures. Contribution presented at the Lightcone 2013+ Conference, Skiathos, Greece, 20-24 May, 2013. To be published in Few Body Systems

References in corpus (7)

• Nucleon Form Factors in QCD
• Future Prospects for Hadron Physics at PANDA
• Production of a pion in association with a high-Q2 dilepton pair in antiproton-proton annihilation at GSI-FAIR
• The Nucleon Distribution Amplitudes and their application to nucleon form factors and the $N\to \Delta$ transition at intermediate values of $Q^2$
• A spectral representation for baryon to meson transition distribution amplitudes
• QCD description of charmonium plus light meson production in antiproton-nucleon annihilation
• Revisiting the production of charmonium plus a light meson at PANDA

Cited by in corpus (1)

• QCD description of backward vector meson hard electroproduction