The interference between the Pomeron and possible odderon mechanisms of diffractive π+π− photoproduction results in charge asymmetry of the produced pions. The observation of charge asymmetry of pions at moderate M π + π − will be an undoubted signal of odderon existence. To make numeral estimates more definite, we limit ourselves by the region M π + π − = 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).
EPJ direct – Springer Journals
Published: Jan 1, 2003
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