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Possibility of the odderon discovery via observation of charge asymmetry in the diffractive pi+pi- production at HERA | | I.F. Ginzburg
; I.P. Ivanov
; N.N. Nikolaev
; | | Date: |
29 Jul 2002 | | Journal: | Eur.Phys.J.direct C5 (2003) 02; Eur.Phys.J.direct C30 (2003) 002 | | Subject: | hep-ph hep-ex | | Affiliation: | 1 and 2), N.N. Nikolaev (2 and 3) ( Sobolev Institute of Mathematics, Novosibirsk, Russia, IKP, Forschungszentrum Juelich, Germany, Landau ITP, Moscow, Russia | | Abstract: | The interference between the Pomeron and possible odderon mechanisms of diffractive pi+pi- photoproduction results in charge asymmetry of the produced pions. The observation of charge asymmetry of pions at moderate M_{pi+pi-} will be an undoubted signal of odderon existence. To make numeral estimates more definite, we limit ourselves by the region M_{pi+pi-} = 1.1 -- 1.5 GeV, where in the odderon mechanism of dipion production, the production via single f_2(1270) resonance is expected to be dominant. We find a very statistically significant effect of the odderon induced charge asymmetry even with very modest estimates for the f_2 photoproduction cross section (without referring to any particular model of the odderon). | | Source: | arXiv, hep-ph/0207345 | | Services: | Forum | Review | PDF | Favorites | |
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