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035 _a(RuTPU)RU\TPU\network\6836
090 _a641905
100 _a20150608a2015 k y0engy50 ba
101 0 _aeng
102 _aUS
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aRole of multichannel ππ scattering in decays of bottomia
_fYu. S. Surovtsev [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 17 tit.]
330 _aThe 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.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tPhysical Review D
_oparticles, fields, gravitation, and cosmology
_oScientific Journal
463 _tVol. 91, iss. 3
_v[037901]
_d2015
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aмногоканальное рассеяние
701 1 _aSurovtsev
_bYu. S.
_gYurii
701 1 _aBydzovsky
_bP.
701 1 _aGutsche
_bT.
_gThomas
701 1 _aKaminski
_bR.
_gRobert
701 1 _aNagy
_bM.
_gMiroslav
701 1 _aLyubovitskiy (Lyubovitskij)
_bV. E.
_cphysicist
_cProfessor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences, Professor of the University of Tubingen (Germany)
_f1963-
_gValery Efimovich
_2stltpush
_3(RuTPU)RU\TPU\pers\33385
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bФизико-технический институт (ФТИ)
_bКафедра высшей математики и математической физики (ВММФ)
_h139
_2stltpush
_3(RuTPU)RU\TPU\col\18727
801 2 _aRU
_b63413507
_c20171123
_gRCR
856 4 _uhttp://dx.doi.org/10.1103/PhysRevD.91.037901
942 _cCF