On The pp->ppη(eta') Reactions Near Threshold

Abstract

The production rate for η' in pp ->pp η' at rest is calculated in a covariant one boson exchange model, previously applied to study pi^0 and ηproduction in NN collisions. The transition amplitudes for the elementary BN -> eta' N processes with B being the meson exchanged (B = pi, sigma, eta, rho, omega and delta) are taken to be the sum of s and u channels with a nucleon in the intermediate states, and a delta meson pole in a t-channel. The couplings of the eta' to hadrons are a factor 0.437 weaker than the respective eta-hadron couplings, as suggested by a quark model and a singlet-octetmixing angle theta = -23 degree. The model reproduces near threshold cross sections for the quasielastic processes pi- p ->n eta (eta') and pp -> pp eta (eta') reactions.

15 pages, 6 figures

References in corpus (4)

• Comparison of eta and eta' production in the pp -> pp eta(eta') reactions near threshold
• ${\eta }^{\prime }$ production in proton-proton scattering close to threshold}
• A Covariant OBE Model for $\eta$ Production in NN Collisions
• ${\eta }^{\prime }$ Production in Proton-Proton Collisions near Threshold

Cited by in corpus (12)

• Close-to-threshold Meson Production in Hadronic Interactions
• Energy Dependence of the Near-Threshold Total Cross-Section for the pp --> pp eta' Reaction
• S-wave eta'-proton FSI; phenomenological analysis of near-threshold production of pi0, eta, and eta' mesons in proton-proton collisions
• Experimental study of pp eta dynamics in the pp --> ppeta reaction
• Eta Meson Production in NN Collisions
• The role of $N^{\ast }(1535)$ in ${\eta }^{\prime }$ production
• Phenomenology of pp->pp eta reaction close to threshold
• Associated strangeness production in the pp to pK^+K^-p and pp to pK^+ pi^0 Sigma^0 reactions
• eta' meson production in proton-proton collisions
• Consistent analysis of the reaction $\gamma p\to p{\eta }^{\prime }$ and $pp\to pp{\eta }^{\prime }$
• The Reaction $pp\to pp\eta$ and the eta-Nucleon and Nucleon-Nucleon Interactions
• Eta meson production in nucleon-nucleon collisions within an effective Lagrangian model