Exclusive scalar $f_0(1500)$ meson production for energy ranges available at the GSI Facility for Antiproton and Ion Research (GSI-FAIR) and at the Japan Proton Accelerator Research Complex (J-PARC)

Abstract

We evaluate differential distributions for exclusive scalar $f_0(1500)$ meson (glueball candidate) production for $p\bar{p}\to N_1{N}_2{f}_0$ (FAIR@GSI) and $pp\to pp{f}_0$ (J-PARC@Tokai). Both QCD diffractive, pion-pion meson exchange current (MEC) components as well as double-diffractive mechanism with intermediate pionic loop are calculated for the first time in the literature. The pion-pion component, which can be reliably calculated, dominates close to the threshold while the diffractive component may take over only for larger energies. At the moment only upper limit for the QCD-diffractive component can be obtained. The diffractive component is calculated based on two-gluon impact factors as well as in the framework of Khoze-Martin-Ryskin approach proposed for diffractive Higgs boson production. Different unintegrated gluon distribution functions (UGDFs) from the literature are used. Rather large cross sections due to pion-pion fusion are predicted for PANDA energies, where the gluonic mechanism is shown to be negligible. The production of $f_0(1500)$ close to threshold could limit the so-called $\pi NN$ form factor in the region of larger pion virtualities. We discuss in detail the two-pion background to the production of the $f_0(1500)$ meson. We compare our result with the existing data of %the WA102 Collaboration.

32 pages, 24 figures, in print in Nucl. Phys. A

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• Identification of a Scalar Glueball
• A lattice study of the masses of singlet 0++ mesons
• Mass Uncertainties of f0(600) and f0(1370) and their Effects on Determination of the Quark and Glueball Admixtures of the I=0 Scalar Mesons
• Central exclusive production of scalar χ_c meson at the Tevatron, RHIC and LHC energies
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Cited by in corpus (7)

• Central Exclusive Particle Production at High Energy Hadron Colliders
• Measurement of exclusive production of scalar ${\chi }_{c0}$ meson in proton-(anti)proton collisions via ${\chi }_{c0}\to {\pi }^{+}{\pi }^{-}$ decay
• Production of exotic hadrons in $pp$ and nuclear collisions
• $pp\to pp{\eta }^{\prime }$ reaction at high energies
• Exclusive glueball production in high energy nucleus-nucleus collisions
• Exclusive $f_1(1285)$ meson production for energy ranges available at the GSI-FAIR with HADES and PANDA
• Exclusive central diffractive production of scalar, pseudoscalar and vector mesons