Updated measurement of the e(+)e(-) -> omega pi(0) -> pi(0) pi(0) gamma cross section with the SND detector

作者：Achasov M N; Barnyakov A Yu; Beloborodov K I; Berdyugin A V; Berkaev D E; Bogdanchikov A G; Botov A A; Dimova T V; Druzhinin V P; Golubev V B; Kardapoltsev L V^*; Kasaev A S; Kharlamov A G; Kirpotin A N; Kovrizhin D P; Koop I A; Korol A A; Koshuba S V; Martin K A; Obrazovsky A E; Pakhtusova E V; Rogovsky Yu A; Senchenko A I; Serednyakov S I; Silagadze Z K; Shatunov Yu M; Shtol D A; Shwartz D B; Skrinsky A N

来源：PHYSICAL REVIEW D, 2016, 94(11): 112001.

DOI：10.1103/PhysRevD.94.112001

We analyze a 37 pb(-1) data sample collected with the SND detector at the VEPP-2000 e(+)e(-) collider in the center-of-mass energy range 1.05-2.00 GeV and present an updated measurement of the e(+)e(-) -> omega pi(0) -> pi(0) pi(0) gamma cross section. In particular, we correct the mistake in radiative correction calculation made in our previous measurement based on a part of the data. The measured cross section is fitted with the vector meson dominance model with three rho-like states and used to test the conserved vector current hypothesis in the tau(-) -> omega pi(-) nu(tau) decay.

• 出版日期2016-12-1