Combined Description of $\overline{\mathbf{N}}\mathbf{N}$ Scattering and Annihilation With A Hadronic Model

Abstract

A model for the nucleon-antinucleon interaction is presented which is based on meson-baryon dynamics. The elastic part is the $G$-parity transform of the Bonn $NN$ potential. Annihilation into two mesons is described in terms of microscopic baryon-exchange processes including all possible combinations of $\pi ,\eta ,\rho ,\omega ,a_0,f_0,a_1,f_1,a_2,f_2,K,K^{\ast }$. The remaining annihilation part is taken into account by a phenomenological energy- and state independent optical potential of Gaussian form. The model enables a simultaneous description of nucleon-antinucleon scattering and annihilation phenomena with fair quality.

revised version, REVTEX, 9 pages, 10 figures available from this URL ftp://ikp113.ikp.kfa-juelich.de/pub/kph140/nucl-th.9411014.uu

References in corpus (1)

• Antiproton-proton partial-wave analysis below 925 MeV/c

Cited by in corpus (36)

• Near threshold enhancement of the ppbar mass spectrum in J/Psi decay
• The antinucleon-nucleon interaction at low energy : annihilation dynamics
• A New State of Baryonium
• The electromagnetic form factors of the proton in the timelike region
• Antinucleon-nucleon interaction at next-to-next-to-next-to-leading order in chiral effective field theory
• Energy-dependent partial-wave analysis of all antiproton-proton scattering data below 925 MeV/c
• On the strong energy dependence of the e^+e^- to ppbar amplitude near threshold
• ppbar enhancement in B and J/Psi decay
• A Method to Polarize Stored Antiprotons to a High Degree
• On the near-threshold $\bar{p}p$ invariant mass spectrum measured in $J/\psi$ and ${\psi }^{\prime }$ decays
• a0(980)-f0(980) mixing and isospin violation in the reactions pN -> d a0, pd -> 3He/3H a0 and dd -> 4He a0
• The bound state problem of S-wave heavy quark meson-aitimeson systems
• The reaction ppbar -> Lambda_c-Lambda_cbar close to threshold
• On possible $S$-wave bound states for a $N\bar{N}$ system within a constituent quark model
• A comprehensive study on the semileptonic decay of heavy flavor mesons
• Production of charmed pseudoscalar mesons in antiproton-proton annihilation
• Antiproton physics
• Forward antiproton-deuteron elastic scattering and total spin-dependent antiproton-deuteron cross sections at intermediate energies
• Isoscalar amplitude dominance in $e^{+}e-$ annihilation to $N\bar{N}$ pair close to the threshold
• The semileptonic baryonic decay $D_s^{+}\to p\bar{p}{e}^{+}{\nu }_e$
• Near threshold ppbar enhancement in the J/psi -> omega ppbar decay
• Near-threshold production of $a_0(980)$-mesons in $\pi N$ and NN collisions and $a_0/f_0$-mixing
• The $X(2239)$ and $\eta (2225)$ as hidden-strange molecular states from $\Lambda \bar{\Lambda }$ interaction
• Radiative proton-antiproton annihilation and isospin mixing in protonium
• Charm production in antiproton-proton annihilation
• Final State Interaction Effects in the $e^{+}{e}^{-}\to N\bar{N}$ Process near Threshold
• Elastic pbar-d scattering and total pbar-d cross sections
• The $\psi$(3770) resonance and its production in $\bar{p}p\to D\bar{D}$
• Production of $a_0$-mesons in pp and pn reactions
• Antiproton scattering off ${}^{3}He$ and ${}^{4}He$ nuclei at low and intermediate energies
• Reexamination of antinucleon-nucleon interactions in covariant chiral effective field theory
• Spin-dependent pbar-d cross sections at low and intermediate energies
• Spin dependence of the antinucleon-nucleon interaction
• Elastic pbar-d scattering and total pbar-d cross sections reexamined
• Coupled-channel analysis of the near-threshold $e^{+}{e}^{-}\to N\bar{N}$ cross sections
• Scalar meson production in nucleon-nucleon collisions near threshold