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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 | Abstract: | We 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 | Services: | Forum | Review | PDF | Favorites |
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