Near-threshold $\varphi$ meson production in proton-nucleus reactions and $\varphi$ width in finite nuclei

Abstract

In the framework of the nuclear spectral function approach for incoherent primary proton-nucleon and secondary pion-nucleon production processes we study the inclusive $\varphi$ meson production in the interaction of 2.83 GeV protons with nuclei. In particular, the A- and momentum-dependences of the absolute and relative phi meson yields are investigated within the different scenarios for its in-medium width. Our model calculations take into account the acceptance window of the ANKE facility used in a recent experiment performed at COSY. They show that the pion-nucleon production channel contributes distinctly to the "low-momentum" $\varphi$ creation in heavy nuclei in the chosen kinematics and, hence, has to be taken into consideration on close examination of the dependences of the phi meson yields on the target mass number with the aim to get information on its width in the medium.

arXiv comment10 pages,8 figures; the slightly extended version of this paper will be published in J.Phys.G

References in corpus (20)

• Evidence for in-medium modification of the $\varphi$ meson at normal nuclear density
• phi photo-production from Li, C, Al, and Cu nuclei at Egamma=1.5 - 2.4 GeV
• Phi decay in nuclei
• Modification of the $\varphi$-meson spectrum in nuclear matter
• $\varphi$ and $\omega$ Meson Production in pp Reactions at $p_{lab}$=3.67 GeV/c
• Phi meson mass and decay width in nuclear matter
• Mass dependence of inclusive nuclear $\varphi$ photoproduction
• The Near-Threshold Production of Phi Mesons in pp Collisions
• Phi-meson photoproduction from nuclei
• The $\varphi$ meson width in the medium from proton induced $\varphi$ production in nuclei
• Photoproduction of phi mesons from nuclei
• Attenuation of phi mesons in gamma A reactions
• Medium effects in the production and decay of vector mesons in pion-nucleus reactions
• Subthreshold K+ Meson Production in Proton-Nucleus Reactions
• Moduli fields and brane tensions: generalizing the junction conditions
• Precision measurement of the quasi-free pn->dphi reaction close to threshold
• Hadronic Probes of the Polarized Intrinsic Strangeness of the Nucleon
• Combined Analysis of Near-Threshold Production of omega and phi Mesons in Nucleon-Nucleon Collisions within an Effective Meson-Nucleon Model
• K^+ momentum spectrum from (K^-,K^+) reactions in intranuclear cascade model
• Phi meson production in near threshold proton-nucleus collisions

Cited by in corpus (15)

• Meson-nucleus potentials and the search for meson-nucleus bound states
• Measurement of the in-medium phi-meson width in proton-nucleus collisions
• Dilepton production in proton-induced reactions at SIS energies with the GiBUU transport model
• Sub-threshold $\varphi$ and ${\Xi }^{-}$ production by high mass resonances with UrQMD
• Momentum dependence of the phi-meson nuclear transparency
• $\varphi$ meson self-energy in nuclear matter from $\varphi N$ resonant interactions
• Photoproduction of ${\eta }^{\prime }$ mesons off nuclei and their properties in the nuclear medium
• $\varphi$ meson transparency in nuclei from $\varphi N$ resonant interactions
• Role of phi decays for K- yields in relativistic heavy-ion collisions
• Testing the $\varphi$-nuclear potential in pion-induced $\varphi$ meson production on nuclei near threshold
• Analysis of spectral modification of $\varphi$ mesons at finite density using a transport approach in the 12 GeV pA reactions
• Near-threshold J/Psi production in proton-nucleus collisions
• Testing the Lambda(1520) hyperon in-medium width in near-threshold proton-nucleus reactions
• Forward coherent $\omega$ and $\varphi$ mesons production in the photon induced reaction on nuclei
• In-medium properties of the phi meson with phi N resonant contributions