Momentum dependence of the phi-meson nuclear transparency

Abstract

The production of phi mesons in proton collisions with C, Cu, Ag, and Au targets has been studied via the phi -> K+K- decay at an incident beam energy of 2.83 GeV using the ANKE detector system at COSY. For the first time, the momentum dependence of the nuclear transparency ratio, the in-medium phi width, and the differential cross section for phi meson production at forward angles have been determined for these targets over the momentum range of 0.6 - 1.6 GeV/c. There are indications of a significant momentum dependence in the value of the extracted phi width, which corresponds to an effective phi-N absorption cross section in the range of 14 - 21 mb.

9 pages, 5 figures

References in corpus (10)

• phi photo-production from Li, C, Al, and Cu nuclei at Egamma=1.5 - 2.4 GeV
• Diffractive $\varphi$-meson photoproduction on proton near threshold
• Modification of the $\omega$-Meson Lifetime in Nuclear Matter
• Differential cross sections and recoil polarizations for the reaction gamma p -> K+ Sigma0
• Absorption of the $\omega$ and $\varphi$ Mesons in Nuclei
• Measurement of the in-medium phi-meson width in proton-nucleus collisions
• Phi-meson photoproduction from nuclei
• Near-threshold $\varphi$ meson production in proton-nucleus reactions and $\varphi$ width in finite nuclei
• Near-threshold Photoproduction of Phi Mesons from Deuterium
• Differential cross sections and spin density matrix elements for gamma p -> phi p from CLAS

Cited by in corpus (27)

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• Recent Progress in QCD Condensate Evaluations and Sum Rules
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• The $\varphi$ meson with finite momentum in a dense medium
• $\varphi$ meson self-energy in nuclear matter from $\varphi N$ resonant interactions
• Strong absorption of hadrons with hidden and open strangeness in nuclear matter
• Photoproduction of ${\eta }^{\prime }$ mesons off nuclei and their properties in the nuclear medium
• The production of K+K- pairs in proton-proton collisions at 2.83 GeV
• $\varphi$ meson transparency in nuclei from $\varphi N$ resonant interactions
• $\varphi$ meson mass and decay width in strange hadronic matter
• Light vector correlator in medium: Wilson coefficients up to dimension 6 operators
• $\varphi$ meson properties in nuclear matter from QCD sum rules with chirally separated four-quark condensates
• Momentum dependence of pion-induced $\varphi$ meson production on nuclei near threshold
• Hidden strange pentaquark in constituent quark models
• Testing the $\varphi$-nuclear potential in pion-induced $\varphi$ meson production on nuclei near threshold
• Medium effects in $\Lambda K^{+}$ pair production by 2.83 GeV protons on nuclei
• Centrality dependence of subthreshold $\varphi$ meson production in Ni+Ni collisions at 1.9A GeV
• Analysis of spectral modification of $\varphi$ mesons at finite density using a transport approach in the 12 GeV pA reactions
• Kaon pair production in proton-nucleus collisions at 2.83 GeV kinetic energy
• Absorption of $\omega$ and $\varphi$ mesons in the inclusive photonuclear reaction
• Probing the structure of $X(3872)$ in photoproduction
• Spectral functions of strange vector mesons in asymmetric hyperonic matter
• An alternative way to decipher the nature of the doubly charmed tetraquark $T_{cc}(3875{)}^{+}$: its antiparticle $T_{\bar{c}\bar{c}}(3875{)}^{-}$ photoproduction off nuclei near threshold
• Determination of the $\varphi$-meson production process and its absorption cross section via directed flow
• Nuclear effects on the $\rho$ meson produced in the inclusive photonuclear reaction
• In-medium properties of the phi meson with phi N resonant contributions