Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-07-29
Eur.Phys.J.direct C5 (2003) 02; Eur.Phys.J.direct C30 (2003) 002
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTeX, 16 pages, 2 figures, expanded discussion, changes to abstract, slight correction of the title
Scientific paper
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).
Ginzburg Ilya F.
Ivanov Igor P.
Nikolaev Nikolai N.
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