Accessing baryon to meson transition distribution amplitudes in meson production in association with a high invariant mass lepton pair at GSI-FAIR with PANDA

Abstract

Nucleon antinucleon annihilation into a near backward (or forward) produced meson and a high invariant mass lepton pair admits a factorized description in terms of antinucleon (or nucleon) distribution amplitudes and nucleon to meson (or antinucleon to meson) transition distribution amplitudes. We estimate the cross section of backward (and forward) pion and eta meson production in association with a high invariant mass lepton pair for the kinematical conditions of GSI-FAIR. The cross sections are found to be large enough to be measured with the PANDA detector. Interesting phenomenological applications of the approach are thus expected.

Revised version, 32 pages, 10 figures

References in corpus (10)

• Nucleon Form Factors in QCD
• Future Prospects for Hadron Physics at PANDA
• Proton decay matrix elements with domain-wall fermions
• On timelike and spacelike hard exclusive reactions
• 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 consistent model for πN transition distribution amplitudes and backward pion electroproduction
• Testing axial and electromagnetic nucleon form factors in time-like regions in the processes $\bar{p}+n\to {\pi }^{-}+{\ell }^{-}+{\ell }^{+}$ and $\bar{p}+p\to {\pi }^0+{\ell }^{-}+{\ell }^{+}$, $\ell =e$, $\mu$
• πN transition distribution amplitudes: Their symmetries and constraints from chiral dynamics
• A spectral representation for baryon to meson transition distribution amplitudes

Cited by in corpus (15)

• Feasibility study for the measurement of $\pi N$ TDAs at PANDA in $\bar{p}p\to J/\psi {\pi }^0$
• Hard exclusive pion electroproduction at backward angles with CLAS
• Transition distribution amplitudes and hard exclusive reactions with baryon number transfer
• QCD description of charmonium plus light meson production in antiproton-nucleon annihilation
• Progress and Opportunities in Backward angle (u-channel) Physics
• Extraction of beam-spin asymmetries from the hard exclusive ${\pi }^{+}$ channel off protons in a wide range of kinematics
• QCD description of backward vector meson hard electroproduction
• Double handbag description of proton-antiproton annihilation into a heavy meson pair
• u-Channel Color Transparency Observables
• Backward charmonium production in $\pi N$ collisions
• Backward timelike Compton scattering to decipher the photon content of the nucleon
• πN TDAs from charmonium production in association with a forward pion at PANDA
• Nucleon-to-pion transition distribution amplitudes: a challenge for PANDA
• First results of proton antiproton annihilation into a pion pair at large scattering angles within the handbag approach
• Baryon-to-meson transition distribution amplitudes: formalism and models