| 000 | 03467nlm0a2200409 4500 | ||
|---|---|---|---|
| 001 | 641940 | ||
| 005 | 20231030040446.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\6871 | ||
| 035 | _aRU\TPU\network\6865 | ||
| 090 | _a641940 | ||
| 100 | _a20150609d2015 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aRU | ||
| 105 | _ay z 100zy | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aThe effect of processes ππ>ππ, KK-, ηη in decays of the ψ- and γ-meson families _fYu. S. Surovtsev [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 300 | _a[The effect of processes pi pi -> pi pi, K antiK, eta eta in decays of the Psi- and Upsilon-meson families] | ||
| 320 | _a[References: 40 tit.] | ||
| 330 | _aThe effect of isoscalar S-wave processes ππ > ππ ; K K ; ηη is considered in the analysis of data (from the Argus, Crystal Ball, CLEO, CUSB, DM2, Mark II, Mark III, and BES II Collabora- tions) on decays of the charmonium – J = ψ > φ ( ππ ; K K ) and ψ ( 2 S ) > J = ψππ – and of the bottomonium – γ ( 2 S ) > γ ( 1 S ) ππ , γ ( 3 S ) > γ ( 1 S ) ππ and γ ( 3 S ) > γ ( 2 S ) ππ . The analysis, which is aimed at studying the scalar mesons, is performed jointly considering the multi-channel pion-pion scattering, which is described in our model-independent approach based on analytic- ity and unitarity and using an uniformizing variable method, and the decays under reasonable assumptions. Results of the analysis confirm all our earlier conclusions on the scalar mesons. It is also shown that in the final states of the ψ and γ -meson family decays (except for the ππ scattering) the contribution of the coupled processes, e.g., K K > ππ , is important even if these processes are energetically forbidden. This is in accordance with our previous conclusions on the wide resonances. E.g., a new and natural mechanism of destructive interference in the decay γ ( 3 S ) > γ ( 1 S ) ππ is indicated on the basis of that consideration, which provides a characteristic two-humped shape of the di-pion mass spectrum. | ||
| 463 |
_t22nd International Baldin Seminar on High Energy Physics Problems : Relativistic Nuclear Physics and Quantum Chromodynamics (ISHEPP 2014) _oproceedings, 15-20 Sep. 2014, Dubna, Russia _v[15 p.] _d2015 |
||
| 517 | 1 | _aThe effect of processes pi pi -> pi pi, K antiK, eta eta in decays of the Psi- and Upsilon-meson families | |
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 701 | 1 |
_aSurovtsev _bYu. S. _gYury Stepanovich |
|
| 701 | 1 |
_aBydzovsky _bP. _gPetr |
|
| 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 _c20171122 _gRCR |
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| 856 | 4 | _uhttp://inspirehep.net/record/1351653/ | |
| 942 | _cCF | ||