Study of dynamics of the process $$e^+e^-\rightarrow \pi ^+\pi ^-\pi ^0$$ e + e - → π + π - π 0 in the energy range 1.15–2.00 GeV
Abstract The dynamics of the process $$ e^+e^- \rightarrow \pi ^+\pi ^-\pi ^0 $$ e + e - → π + π - π 0 is studied in the energy region from 1.15 to 2.00 GeV using data accumulated with the SND detector at the VEPP-2000 $$e^+e^-$$ e + e - collider. The Dalitz plot distribution and $$\pi ^+\pi ^-$$ π...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-10-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-020-08524-4 |
| _version_ | 1818237001020735488 |
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| author | M. N. Achasov A. Yu. Barnyakov A. A. Baykov K. I. Beloborodov A. V. Berdyugin D. E. Berkaev A. G. Bogdanchikov A. A. Botov T. V. Dimova V. P. Druzhinin V. B. Golubev A. N. Kirpotin L. V. Kardapoltsev A. S. Kasaev A. G. Kharlamov I. A. Koop A. A. Korol D. P. Kovrizhin A. S. Kupich K. A. Martin N. A. Melnikova N. Yu. Muchnoy A. E. Obrazovsky E. V. Pakhtusova K. V. Pugachev D. V. Rabusov Yu. A. Rogovsky Y. S. Savchenko A. I. Senchenko S. I. Serednyakov D. N. Shatilov Yu. M. Shatunov D. A. Shtol D. B. Shwartz Z. K. Silagadze I. K. Surin M. V. Timoshenko Yu. V. Usov V. N. Zhabin V. V. Zhulanov |
| author_facet | M. N. Achasov A. Yu. Barnyakov A. A. Baykov K. I. Beloborodov A. V. Berdyugin D. E. Berkaev A. G. Bogdanchikov A. A. Botov T. V. Dimova V. P. Druzhinin V. B. Golubev A. N. Kirpotin L. V. Kardapoltsev A. S. Kasaev A. G. Kharlamov I. A. Koop A. A. Korol D. P. Kovrizhin A. S. Kupich K. A. Martin N. A. Melnikova N. Yu. Muchnoy A. E. Obrazovsky E. V. Pakhtusova K. V. Pugachev D. V. Rabusov Yu. A. Rogovsky Y. S. Savchenko A. I. Senchenko S. I. Serednyakov D. N. Shatilov Yu. M. Shatunov D. A. Shtol D. B. Shwartz Z. K. Silagadze I. K. Surin M. V. Timoshenko Yu. V. Usov V. N. Zhabin V. V. Zhulanov |
| author_sort | M. N. Achasov |
| collection | DOAJ |
| description | Abstract The dynamics of the process $$ e^+e^- \rightarrow \pi ^+\pi ^-\pi ^0 $$ e + e - → π + π - π 0 is studied in the energy region from 1.15 to 2.00 GeV using data accumulated with the SND detector at the VEPP-2000 $$e^+e^-$$ e + e - collider. The Dalitz plot distribution and $$\pi ^+\pi ^-$$ π + π - mass spectrum are analyzed in a model including the intermediate states $$\rho (770)\pi $$ ρ ( 770 ) π , $$\rho (1450)\pi $$ ρ ( 1450 ) π , and $$\omega \pi ^0$$ ω π 0 . As a result, the energy dependences of the $$\rho (770)\pi $$ ρ ( 770 ) π and $$\rho (1450)\pi $$ ρ ( 1450 ) π cross sections and the relative phases between the $$\rho (770)\pi $$ ρ ( 770 ) π amplitude and the $$\rho (1450)\pi $$ ρ ( 1450 ) π and $$\omega \pi ^0$$ ω π 0 amplitudes are obtained. The $$\rho (1450)\pi $$ ρ ( 1450 ) π cross section has a peak in the energy region of the $$\omega (1650)$$ ω ( 1650 ) resonance (1.55–1.75 GeV). In this energy range the contributions of the $$\rho (770)\pi $$ ρ ( 770 ) π and $$\rho (1450)\pi $$ ρ ( 1450 ) π states are of the same order of magnitude. No resonance structure near 1.65 GeV is observed in the $$\rho (770)\pi $$ ρ ( 770 ) π cross section. We conclude that the intermediate state $$\rho (1450)\pi $$ ρ ( 1450 ) π gives a significant contribution to the decay of $$\omega (1650)\rightarrow \pi ^+\pi ^-\pi ^0$$ ω ( 1650 ) → π + π - π 0 , whereas the $$\rho (770)\pi $$ ρ ( 770 ) π mechanism dominates in the decay $$\omega (1420)\rightarrow \pi ^+\pi ^-\pi ^0$$ ω ( 1420 ) → π + π - π 0 . |
| first_indexed | 2024-12-12T12:18:48Z |
| format | Article |
| id | doaj.art-5f7f0cc5ead84a2a8aaa92c5313b1ba3 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-12T12:18:48Z |
| publishDate | 2020-10-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-5f7f0cc5ead84a2a8aaa92c5313b1ba32022-12-22T00:24:43ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522020-10-0180101910.1140/epjc/s10052-020-08524-4Study of dynamics of the process $$e^+e^-\rightarrow \pi ^+\pi ^-\pi ^0$$ e + e - → π + π - π 0 in the energy range 1.15–2.00 GeVM. N. Achasov0A. Yu. Barnyakov1A. A. Baykov2K. I. Beloborodov3A. V. Berdyugin4D. E. Berkaev5A. G. Bogdanchikov6A. A. Botov7T. V. Dimova8V. P. Druzhinin9V. B. Golubev10A. N. Kirpotin11L. V. Kardapoltsev12A. S. Kasaev13A. G. Kharlamov14I. A. Koop15A. A. Korol16D. P. Kovrizhin17A. S. Kupich18K. A. Martin19N. A. Melnikova20N. Yu. Muchnoy21A. E. Obrazovsky22E. V. Pakhtusova23K. V. Pugachev24D. V. Rabusov25Yu. A. Rogovsky26Y. S. Savchenko27A. I. Senchenko28S. I. Serednyakov29D. N. Shatilov30Yu. M. Shatunov31D. A. Shtol32D. B. Shwartz33Z. K. Silagadze34I. K. Surin35M. V. Timoshenko36Yu. V. Usov37V. N. Zhabin38V. V. Zhulanov39Budker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASBudker Institute of Nuclear Physics, SB RASAbstract The dynamics of the process $$ e^+e^- \rightarrow \pi ^+\pi ^-\pi ^0 $$ e + e - → π + π - π 0 is studied in the energy region from 1.15 to 2.00 GeV using data accumulated with the SND detector at the VEPP-2000 $$e^+e^-$$ e + e - collider. The Dalitz plot distribution and $$\pi ^+\pi ^-$$ π + π - mass spectrum are analyzed in a model including the intermediate states $$\rho (770)\pi $$ ρ ( 770 ) π , $$\rho (1450)\pi $$ ρ ( 1450 ) π , and $$\omega \pi ^0$$ ω π 0 . As a result, the energy dependences of the $$\rho (770)\pi $$ ρ ( 770 ) π and $$\rho (1450)\pi $$ ρ ( 1450 ) π cross sections and the relative phases between the $$\rho (770)\pi $$ ρ ( 770 ) π amplitude and the $$\rho (1450)\pi $$ ρ ( 1450 ) π and $$\omega \pi ^0$$ ω π 0 amplitudes are obtained. The $$\rho (1450)\pi $$ ρ ( 1450 ) π cross section has a peak in the energy region of the $$\omega (1650)$$ ω ( 1650 ) resonance (1.55–1.75 GeV). In this energy range the contributions of the $$\rho (770)\pi $$ ρ ( 770 ) π and $$\rho (1450)\pi $$ ρ ( 1450 ) π states are of the same order of magnitude. No resonance structure near 1.65 GeV is observed in the $$\rho (770)\pi $$ ρ ( 770 ) π cross section. We conclude that the intermediate state $$\rho (1450)\pi $$ ρ ( 1450 ) π gives a significant contribution to the decay of $$\omega (1650)\rightarrow \pi ^+\pi ^-\pi ^0$$ ω ( 1650 ) → π + π - π 0 , whereas the $$\rho (770)\pi $$ ρ ( 770 ) π mechanism dominates in the decay $$\omega (1420)\rightarrow \pi ^+\pi ^-\pi ^0$$ ω ( 1420 ) → π + π - π 0 .http://link.springer.com/article/10.1140/epjc/s10052-020-08524-4 |
| spellingShingle | M. N. Achasov A. Yu. Barnyakov A. A. Baykov K. I. Beloborodov A. V. Berdyugin D. E. Berkaev A. G. Bogdanchikov A. A. Botov T. V. Dimova V. P. Druzhinin V. B. Golubev A. N. Kirpotin L. V. Kardapoltsev A. S. Kasaev A. G. Kharlamov I. A. Koop A. A. Korol D. P. Kovrizhin A. S. Kupich K. A. Martin N. A. Melnikova N. Yu. Muchnoy A. E. Obrazovsky E. V. Pakhtusova K. V. Pugachev D. V. Rabusov Yu. A. Rogovsky Y. S. Savchenko A. I. Senchenko S. I. Serednyakov D. N. Shatilov Yu. M. Shatunov D. A. Shtol D. B. Shwartz Z. K. Silagadze I. K. Surin M. V. Timoshenko Yu. V. Usov V. N. Zhabin V. V. Zhulanov Study of dynamics of the process $$e^+e^-\rightarrow \pi ^+\pi ^-\pi ^0$$ e + e - → π + π - π 0 in the energy range 1.15–2.00 GeV European Physical Journal C: Particles and Fields |
| title | Study of dynamics of the process $$e^+e^-\rightarrow \pi ^+\pi ^-\pi ^0$$ e + e - → π + π - π 0 in the energy range 1.15–2.00 GeV |
| title_full | Study of dynamics of the process $$e^+e^-\rightarrow \pi ^+\pi ^-\pi ^0$$ e + e - → π + π - π 0 in the energy range 1.15–2.00 GeV |
| title_fullStr | Study of dynamics of the process $$e^+e^-\rightarrow \pi ^+\pi ^-\pi ^0$$ e + e - → π + π - π 0 in the energy range 1.15–2.00 GeV |
| title_full_unstemmed | Study of dynamics of the process $$e^+e^-\rightarrow \pi ^+\pi ^-\pi ^0$$ e + e - → π + π - π 0 in the energy range 1.15–2.00 GeV |
| title_short | Study of dynamics of the process $$e^+e^-\rightarrow \pi ^+\pi ^-\pi ^0$$ e + e - → π + π - π 0 in the energy range 1.15–2.00 GeV |
| title_sort | study of dynamics of the process e e rightarrow pi pi pi 0 e e π π π 0 in the energy range 1 15 2 00 gev |
| url | http://link.springer.com/article/10.1140/epjc/s10052-020-08524-4 |
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