High-statistics measurement of the η→3π0 decay at the Mainz Microtron

Bibliographic Details
Parent link:	Physical Review C Vol. 97, iss. 6.— 2018.— [065203, 11 р.]
Corporate Author:	Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Other Authors:	Prakhov S., Abt S., Achenbach P., Fiks (Fix) A. I. Alexander Ivanovich
Summary:	Title screen The largest, at the moment, statistics of 7×106η→3π0 decays, based on 6.2×107η mesons produced in the γp→ηp reaction, has been accumulated by the A2 Collaboration at the Mainz Microtron, MAMI. It allowed a detailed study of the η→3π0 dynamics beyond its conventional parametrization with just the quadratic slope parameter α and enabled, for the first time, a measurement of the second-order term and a better understanding of the cusp structure in the neutral decay. The present data are also compared to recent theoretical calculations that predict a nonlinear dependence along the quadratic distance from the Dalitz-plot center.
Published:	2018
Subjects:	труды учёных ТПУ электронный ресурс исследования мезоны параметры
Online Access:	https://doi.org/10.1103/PhysRevC.97.065203
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=660081

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