Intermediate dynamics of the four pions production in e+e- annihilation and tau decay processes

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作者
Kozyrev, E. A. [1 ,2 ]
Solodov, E. P. [1 ,2 ]
Akhmetshin, R. R. [1 ]
Amirkhanov, A. N. [1 ,2 ]
Anisenkov, A. V. [1 ,2 ]
Aulchenko, V. M. [1 ,2 ]
Banzarov, V. S. [1 ]
Bashtovoy, N. S. [1 ]
Berkaev, D. E. [1 ,2 ]
Bondar, A. E. [1 ,2 ]
Bragin, A. V. [1 ]
Eidelman, S. I. [1 ,2 ]
Epifanov, D. A. [1 ,2 ]
Epshteyn, L. B. [1 ,2 ,3 ]
Erofeev, A. L. [1 ,2 ]
Fedotovich, G. V. [1 ,2 ]
Gayazov, S. E. [1 ,2 ]
Grebenuk, A. A. [1 ,2 ]
Gribanov, S. S. [1 ,2 ]
Grigoriev, D. N. [1 ,2 ,3 ]
Ignatov, F. V. [1 ]
Ivanov, V. L. [1 ,2 ]
Karpov, S. V. [1 ]
Kasaev, A. S. [1 ]
Kazanin, V. F. [1 ,2 ]
Korobov, A. A. [1 ,2 ]
Koop, I. A. [1 ]
Kozyrev, A. N. [1 ,2 ]
Krokovny, P. P. [1 ,2 ]
Kuzmenko, A. E. [1 ,2 ]
Kuzmin, A. S. [1 ,2 ]
Logashenko, I. B. [1 ,2 ]
Lukin, P. A. [1 ,2 ]
Lysenko, A. P. [1 ]
Mikhailov, K. Yu [1 ,2 ]
Okhapkin, V. S. [1 ]
Perevedentsev, E. A. [1 ,2 ]
Pestov, Yu N. [1 ]
Popov, A. S. [1 ,2 ]
Razuvaev, G. P. [1 ,2 ]
Rogovsky, Yu A. [1 ,2 ]
Ruban, A. A. [1 ]
Ryskulov, N. M. [1 ]
Ryzhenenkov, A. E. [1 ,2 ]
Shebalin, V. E. [1 ,2 ]
Shemyakin, D. N. [1 ,2 ]
Shwartz, B. A. [1 ,2 ]
Shwartz, D. B. [1 ,2 ]
Sibidanov, A. L. [4 ]
Shatunov, Yu M. [1 ]
机构
[1] SB RAS, Budker Inst Nucl Phys, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Novosibirsk 630090, Russia
[3] Novosibirsk State Tech Univ, Novosibirsk 630092, Russia
[4] Univ Victoria, Victoria, BC V8W 3P6, Canada
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O412 [相对论、场论]; O572.2 [粒子物理学];
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摘要
In this article we print out preliminary results of an amplitude analysis of the e(+)e(-) -> 4 pi process. The amplitude analysis is performed using experimental data from the CMD-3 detector at the VEPP-2000 collider in the energy range 0.9-2.007 GeV. In the study the dominance of the e(+)e(-) -> omega pi(0) and e(+)e(-) -> a(1) (1260)pi -> 4 pi amplitudes is proved, as well as sizable contributions of the rho(+)rho(-), rho f(0)(980), rho sigma and etc. states are observed. The obtained amplitude is used for the test of the isospin relations and hypothesis of conserved vector current (CVC).
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