Study of the process e+e− → 3(π+π−)π0 in the c.m. energy range 1.6–2.0 GeV with the CMD-3 detector

Akhmetshin, R.R.; Amirkhanov, A.N.; Anisenkov, A.V.; Aulchenko, V.M.; Banzarov, V.Sh.; Bashtovoy, N.S.; Berkaev, D.E.; Bondar, A.E.; Bragin, A.V.; Eidelman, S.I.; Epifanov, D.A.; Epshteyn, L.B.; Erofeev, A.L.; Fedotovich, G.V.; Gayazov, S.E.; Grebenuk, A.A.; Gribanov, S.S.; Grigoriev, D.N.; Ignatov, F.V.; Ivanov, V.L.; Karpov, S.V.; Kazanin, V.F.; Koop, I.A.; Kirpotin, A.N.; Korobov, A.A.; Kozyrev, A.N.; Kozyrev, E.A.; Krokovny, P.P.; Kuzmenko, A.E.; Kuzmin, A.S.; Logashenko, I.B.; Lukin, P.A.; Mikhailov, K.Yu.; Okhapkin, V.S.; Otboev, A.V.; Pestov, Yu.N.; Popov, A.S.; Razuvaev, G.P.; Rogovsky, Yu.A.; Ruban, A.A.; Ryskulov, N.M.; Ryzhenenkov, A.E.; Senchenko, A.I.; Shatunov, Yu.M.; Shatunov, P.Yu.; Shebalin, V.E.; Shemyakin, D.N.; Shwartz, B.A.; Sibidanov, A.L.; Solodov, E.P.; Titov, V.M.; Talyshev, A.A.; Vorobiov, A.I.; Zemlyansky, I.M.; Yudin, Yu.V.

Study of the process e+e− → 3(π+π−)π0 in the c.m. energy range 1.6–2.0 GeV with the CMD-3 detector

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Sibidanov_AL_PhysLettB_2019.pdf (551.18 KB)

Date

2019

Authors

Akhmetshin, R.R.

Amirkhanov, A.N.

Anisenkov, A.V.

Aulchenko, V.M.

Banzarov, V.Sh.

Bashtovoy, N.S.

Berkaev, D.E.

Bondar, A.E.

Bragin, A.V.

Eidelman, S.I.

Publisher

Physics Letters B

Abstract

The cross section of the process e+e−→3(π+π−)π0has been measured for the first time using a data sample of 56.7 pb−1collected with the CMD-3 detector at the VEPP-2000 e+e−collider. 632±32 signal events have been selected in the center-of-mass energy range 1.6–2.0 GeV. A study of dynamics of seven-pion production allows one to extract contributions of the dominated 2(π+π−)ωand 2(π+π−)ηintermediate states.

Citation

Akhmetshin, R.R., Amirkhanov, A.N., Anisenkov, A.V., Aulchenko, V.M., Banzarov, V.Sh., Bashtovoy, N.S. & Yudin, Y.V.(2019). Study of the process e+e− → 3(π+π−)π0 in the c.m. energy range 1.6–2.0 GeV with the CMD-3 detector. Physics Letters B, 792, 419-423. https://doi.org/10.1016/j.physletb.2019.04.007

URI

https://doi.org/10.1016/j.physletb.2019.04.007
http://hdl.handle.net/1828/10845

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Faculty Publications (BioMed Central & Faculty of Science)

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Study of the process e+e− → 3(π+π−)π0 in the c.m. energy range 1.6–2.0 GeV with the CMD-3 detector

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