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Experimental study of the e+e- -> pi0 gamma process in the energy region sqrt(s)=0.60-0.97 GeV by Achasov, M. N.; Beloborodov, K. I.; Berdugin, A. V.; Bogdanchikov, A. G.; Bozhenok, A. V.; Bukin, A. D.; Bukin, D. A.; Dimova, T. V.; Druzhinin, V. P.; Golubev, V. B.; Ivanchenko, V. N.; Korol, A. A.; Koshuba, S. V.; Pakhtusova, E. V.; Polunin, A. A.; Pyata, E. E.; Salnikov, A. A.; Serednyakov, S. I.; Shary, V. V.; Shatunov, Yu. M.; Sidorov, V. A.; Silagadze, Z. K.; Skrinsky, A. N.; Skripkin, A. G.; Usov, Yu. V.; Valishev, A. A.; Vasiljev, A. V. is a scholarly article available to read on EtoBox.

What is Experimental study of the e+e- -> pi0 gamma process in the energy region sqrt(s)=0.60-0.97 GeV about?

Results of the study of the e+e-->pi0 gamma process with SND detector at VEPP-2M collider in the c.m.s. energy range sqrt(s)=0.60-0.97 GeV are presented. Using 36513 selected events corresponding to a total integrated luminosity of 3.4 pb^-1 the e+e-->pi0 gamma cross section was measured. The energy dependence of the cross section was analyzed in the framework of the vector meson dominance model. The data are well described by a sum of phi,omega,rho0->pi0 gamma decay contributions with measured decay probabilities: Br(omega->pi0 gamma)=(9.34+-0.15+-0.31)% and Br(rho0->pi0 gamma)=(5.15+-1.16+-0.73)*10^-4 . The rho-omega relative interference phase is phi(rho,omega}=(-10.2+-6.5+-2.5) degree.

Author
Achasov, M. N.; Beloborodov, K. I.; Berdugin, A. V.; Bogdanchikov, A. G.; Bozhenok, A. V.; Bukin, A. D.; Bukin, D. A.; Dimova, T. V.; Druzhinin, V. P.; Golubev, V. B.; Ivanchenko, V. N.; Korol, A. A.; Koshuba, S. V.; Pakhtusova, E. V.; Polunin, A. A.; Pyata, E. E.; Salnikov, A. A.; Serednyakov, S. I.; Shary, V. V.; Shatunov, Yu. M.; Sidorov, V. A.; Silagadze, Z. K.; Skrinsky, A. N.; Skripkin, A. G.; Usov, Yu. V.; Valishev, A. A.; Vasiljev, A. V.
Published
2003
Language
EN

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Browse all works by Achasov, M. N.; Beloborodov, K. I.; Berdugin, A. V.; Bogdanchikov, A. G.; Bozhenok, A. V.; Bukin, A. D.; Bukin, D. A.; Dimova, T. V.; Druzhinin, V. P.; Golubev, V. B.; Ivanchenko, V. N.; Korol, A. A.; Koshuba, S. V.; Pakhtusova, E. V.; Polunin, A. A.; Pyata, E. E.; Salnikov, A. A.; Serednyakov, S. I.; Shary, V. V.; Shatunov, Yu. M.; Sidorov, V. A.; Silagadze, Z. K.; Skrinsky, A. N.; Skripkin, A. G.; Usov, Yu. V.; Valishev, A. A.; Vasiljev, A. V.