Role of multichannel ππ scattering in decays of bottomia; Physical Review D; Vol. 91, iss. 3

Role of multichannel ππ scattering in decays of bottomia; Physical Review D; Vol. 91, iss. 3

Podrobná bibliografie
Parent link:	Physical Review D: particles, fields, gravitation, and cosmology Vol. 91, iss. 3.— 2015.— [037901]
Korporativní autor:	Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра высшей математики и математической физики (ВММФ)
Další autoři:	Surovtsev Yu. S. Yurii, Bydzovsky P., Gutsche T. Thomas, Kaminski R. Robert, Nagy M. Miroslav, Lyubovitskiy (Lyubovitskij) V. E. Valery Efimovich
Shrnutí:	Title screen The effect of isoscalar S-wave multichannel ππ>ππ,KK-,ηη scattering is considered in the analysis of decay data of the γ-mesons. We show that when allowing for the final state interaction contribution to the decays γ(mS)>γ(nS)ππ (m>n,m=2,3,n=1,2) in our model-independent approach, we can explain the two-pion energetic spectra of these γ transitions including the two-humped shape of the di-pion mass distribution in γ(3S)>γ(1S)ππ as the coupled-channel effect. It is shown also that the considered bottomia decay data do not offer new insights into the nature of the f0 mesons, which were not already deduced in our previous analyses of pseudoscalar meson scattering data. Режим доступа: по договору с организацией-держателем ресурса
Jazyk:	angličtina
Vydáno:	2015
Témata:	электронный ресурс труды учёных ТПУ многоканальное рассеяние
On-line přístup:	http://dx.doi.org/10.1103/PhysRevD.91.037901
Médium:	Elektronický zdroj Kapitola
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=641905

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