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28 March 2024
 
  » arxiv » 0806.4896

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Exclusive scalar glueball $f_0(1500)$ production for FAIR and J-PARC energy range
Antoni Szczurek ; Piotr Lebiedowicz ;
Date 30 Jun 2008
AbstractWe evaluate differential distributions for exclusive scalar $f_0(1500)$ production for $p ar p o N_1 N_2 f_0$ (FAIR@GSI) and $p p o p p f_0$ (J-PARC@Tokai). Both QCD diffractive and pion-pion meson exchange current (MEC) components are included. Rather large cross sections are predicted. The pion-pion component, never discussed in the literature, dominates close to the threshold while the diffractive component takes over for larger energies. 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. 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.
Source arXiv, 0806.4896
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