Photon 2015

15-19 June 2015
Asia/Novosibirsk timezone
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Contribution Oral presentation

Resonances and exclusive processes

Photoproduction of π0π0 on proton and deuteron with the rescattering mechanism π+π- → π0π0 inclusion

Speakers

• Mr. Mikhail EGOROV

Content

The model of coherent $pi^0pi^0$ mesons photoproduction on simplest nuclei of hydrogen and deiterium in the region $E_{gamma}le1.4$ GeV is presented. Two pion rescattering amplitude in process $pi^+pi^-topi^0pi^0$ is taken into account from phenomenological fit is accurately defined it in treshold region as well as up to 1100 MeV relative energy in $pipi$ c.m. Strong dependence of the result on the rescattering amplitude is also discussed.