Precision measurement of the quasi-free pn->dphi reaction close to threshold

Abstract

The quasi-free pn->dphi reaction has been studied at the Cooler Synchrotron COSY-Juelich, using the internal proton beam incident on a deuterium cluster-jet target and detecting a fast deuteron in coincidence with the K+K- decay of the phi-meson. The energy dependence of the total and differential cross sections are extracted for excess energies up to 80 MeV by determining the Fermi momentum of the target neutron on an event-by-event basis. Though these cross sections are consistent with s-wave production, the kaon angular distributions show the presence of p waves at quite low energy. Production on the neutron is found to be stronger than on the proton but not by as much as for the eta-meson.

arXiv comment4 Pages, 3 Figures, version 2, resubmitted to Phys. Rev. Lett

References in corpus (9)

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• Meson production in nucleon--nucleon collisions close to the threshold
• $\varphi$ and $\omega$ Meson Production in pp Reactions at $p_{lab}$=3.67 GeV/c
• The Near-Threshold Production of Phi Mesons in pp Collisions
• Combined Analysis of Near-Threshold Production of omega and phi Mesons in Nucleon-Nucleon Collisions within an Effective Meson-Nucleon Model
• Proton--induced deuteron breakup at GeV energies with forward emission of a fast proton pair
• Near-threshold production of omega mesons in the pn -> d omega reaction
• The reactions p + n --> d + omega and p + n --> d + phi near threshold
• Polarization observables in the reaction $pn\to d\varphi$

Cited by in corpus (26)

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• Scatter fraction of the J-PET tomography scanner
• The production of K+K- pairs in proton-proton collisions at 2.83 GeV
• $\varphi$ meson transparency in nuclei from $\varphi N$ resonant interactions
• Near threshold production of the eta meson via the quasi-free pn --> pn eta reaction
• Evidence of N*(1535) resonance contribution in the pn->dϕreaction
• Measurement of the pn -> dK^+K^- total cross section close to threshold
• Coupled-channel effects in the pp -> ppK+K- reaction
• Overview of the software architecture and data flow for the J-PET tomography device
• Determination of target thickness and luminosity from beam energy losses
• Overview of the software architecture and data flow for the J-PET tomography device
• Study of omega-meson production in pp collisions at ANKE
• Role of phi decays for K- yields in relativistic heavy-ion collisions
• Subthreshold and near-threshold kaon and antikaon production in proton-nucleus reactions
• System size dependence of strange particle correlations in Cu+Cu and Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV in STAR at RHIC
• Polarisation of the omega meson in the pd-->3He+omega reaction at 1360 and 1450 MeV
• Formation of eta'(958) bound states by (gamma, d) reaction
• Absorption of phi mesons in near-threshold proton-nucleus reactions
• Search for Pentaquark Theta+ in Hadronic Reaction at J-PARC
• Strangeness Production at COSY
• Meson-production experiments at COSY-Juelich
• Strangeness Production in Hadron Reactions
• Populating Low-Spin States in Radioactive Nuclei to Measure Magnetic Moments Using the Transient Field Technique