Study of dynamics of the process e+e-→ π+π-π in the energy range 1.15–2.00 GeV: SND Collaboration

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

doi:10.1140/epjc/s10052-020-08524-4

Study of dynamics of the process e⁺e^-→ π⁺π^-π in the energy range 1.15–2.00 GeV: SND Collaboration

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. MartinN. 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

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

Аннотация

The dynamics of the process e⁺e^-→ π⁺π^-π 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^- collider. The Dalitz plot distribution and π⁺π^- mass spectrum are analyzed in a model including the intermediate states ρ(770) π, ρ(1450) π, and ωπ. As a result, the energy dependences of the ρ(770) π and ρ(1450) π cross sections and the relative phases between the ρ(770) π amplitude and the ρ(1450) π and ωπ amplitudes are obtained. The ρ(1450) π cross section has a peak in the energy region of the ω(1650) resonance (1.55–1.75 GeV). In this energy range the contributions of the ρ(770) π and ρ(1450) π states are of the same order of magnitude. No resonance structure near 1.65 GeV is observed in the ρ(770) π cross section. We conclude that the intermediate state ρ(1450) π gives a significant contribution to the decay of ω(1650) → π⁺π^-π, whereas the ρ(770) π mechanism dominates in the decay ω(1420) → π⁺π^-π.

Язык оригинала	английский
Номер статьи	993
Число страниц	9
Журнал	European Physical Journal C
Том	80
Номер выпуска	10
DOI	https://doi.org/10.1140/epjc/s10052-020-08524-4
Состояние	Опубликовано - 1 окт 2020

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10.1140/epjc/s10052-020-08524-4

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Achasov, M. N., Barnyakov, A. Y., Baykov, A. A., Beloborodov, K. I., Berdyugin, A. V., Berkaev, D. E., Bogdanchikov, A. G., Botov, A. A., Dimova, T. V., Druzhinin, V. P., Golubev, V. B., Kirpotin, A. N., Kardapoltsev, L. V., Kasaev, A. S., Kharlamov, A. G., Koop, I. A., Korol, A. A., Kovrizhin, D. P., Kupich, A. S., ... Zhulanov, V. V. (2020). Study of dynamics of the process e⁺e^-→ π⁺π^-π in the energy range 1.15–2.00 GeV: SND Collaboration. European Physical Journal C, 80(10), [993]. https://doi.org/10.1140/epjc/s10052-020-08524-4

Achasov, M. N. ; Barnyakov, A. Yu ; Baykov, A. A. ; Beloborodov, K. I. ; Berdyugin, A. V. ; Berkaev, D. E. ; Bogdanchikov, A. G. ; Botov, A. A. ; Dimova, T. V. ; Druzhinin, V. P. ; Golubev, V. B. ; Kirpotin, A. N. ; Kardapoltsev, L. V. ; Kasaev, A. S. ; Kharlamov, A. G. ; Koop, I. A. ; Korol, A. A. ; Kovrizhin, D. P. ; Kupich, A. S. ; Martin, K. A. ; Melnikova, N. A. ; Muchnoy, N. Yu ; Obrazovsky, A. E. ; Pakhtusova, E. V. ; Pugachev, K. V. ; Rabusov, D. V. ; Rogovsky, Yu A. ; Savchenko, Y. S. ; Senchenko, A. I. ; Serednyakov, S. I. ; Shatilov, D. N. ; Shatunov, Yu M. ; Shtol, D. A. ; Shwartz, D. B. ; Silagadze, Z. K. ; Surin, I. K. ; Timoshenko, M. V. ; Usov, Yu V. ; Zhabin, V. N. ; Zhulanov, V. V. / Study of dynamics of the process e⁺e^-→ π⁺π^-π in the energy range 1.15–2.00 GeV : SND Collaboration. В: European Physical Journal C. 2020 ; Том 80, № 10.

@article{9ab49ac9fca34bc481d21adc380af607,

title = "Study of dynamics of the process e+e-→ π+π-π in the energy range 1.15–2.00 GeV: SND Collaboration",

abstract = "The dynamics of the process e+e-→ π+π-π 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- collider. The Dalitz plot distribution and π+π- mass spectrum are analyzed in a model including the intermediate states ρ(770) π, ρ(1450) π, and ωπ. As a result, the energy dependences of the ρ(770) π and ρ(1450) π cross sections and the relative phases between the ρ(770) π amplitude and the ρ(1450) π and ωπ amplitudes are obtained. The ρ(1450) π cross section has a peak in the energy region of the ω(1650) resonance (1.55–1.75 GeV). In this energy range the contributions of the ρ(770) π and ρ(1450) π states are of the same order of magnitude. No resonance structure near 1.65 GeV is observed in the ρ(770) π cross section. We conclude that the intermediate state ρ(1450) π gives a significant contribution to the decay of ω(1650) → π+π-π, whereas the ρ(770) π mechanism dominates in the decay ω(1420) → π+π-π.",

keywords = "CROSS-SECTION, PI(+)PI(-)PI(0), ANNIHILATION",

author = "Achasov, {M. N.} and Barnyakov, {A. Yu} and Baykov, {A. A.} and Beloborodov, {K. I.} and Berdyugin, {A. V.} and Berkaev, {D. E.} and Bogdanchikov, {A. G.} and Botov, {A. A.} and Dimova, {T. V.} and Druzhinin, {V. P.} and Golubev, {V. B.} and Kirpotin, {A. N.} and Kardapoltsev, {L. V.} and Kasaev, {A. S.} and Kharlamov, {A. G.} and Koop, {I. A.} and Korol, {A. A.} and Kovrizhin, {D. P.} and Kupich, {A. S.} and Martin, {K. A.} and Melnikova, {N. A.} and Muchnoy, {N. Yu} and Obrazovsky, {A. E.} and Pakhtusova, {E. V.} and Pugachev, {K. V.} and Rabusov, {D. V.} and Rogovsky, {Yu A.} and Savchenko, {Y. S.} and Senchenko, {A. I.} and Serednyakov, {S. I.} and Shatilov, {D. N.} and Shatunov, {Yu M.} and Shtol, {D. A.} and Shwartz, {D. B.} and Silagadze, {Z. K.} and Surin, {I. K.} and Timoshenko, {M. V.} and Usov, {Yu V.} and Zhabin, {V. N.} and Zhulanov, {V. V.}",

year = "2020",

month = oct,

day = "1",

doi = "10.1140/epjc/s10052-020-08524-4",

language = "English",

volume = "80",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "10",

}

Achasov, MN, Barnyakov, AY, Baykov, AA, Beloborodov, KI , Berdyugin, AV, Berkaev, DE, Bogdanchikov, AG, Botov, AA, Dimova, TV , Druzhinin, VP, Golubev, VB, Kirpotin, AN, Kardapoltsev, LV, Kasaev, AS, Kharlamov, AG , Koop, IA , Korol, AA, Kovrizhin, DP, Kupich, AS, Martin, KA, Melnikova, NA , Muchnoy, NY, Obrazovsky, AE, Pakhtusova, EV, Pugachev, KV, Rabusov, DV, Rogovsky, YA , Savchenko, YS , Senchenko, AI , Serednyakov, SI, Shatilov, DN, Shatunov, YM, Shtol, DA, Shwartz, DB , Silagadze, ZK, Surin, IK, Timoshenko, MV, Usov, YV, Zhabin, VN & Zhulanov, VV 2020, 'Study of dynamics of the process e⁺e^-→ π⁺π^-π in the energy range 1.15–2.00 GeV: SND Collaboration', European Physical Journal C, том. 80, № 10, 993. https://doi.org/10.1140/epjc/s10052-020-08524-4

Study of dynamics of the process e⁺e^-→ π⁺π^-π in the energy range 1.15–2.00 GeV : SND Collaboration. / Achasov, M. N.; Barnyakov, A. Yu; Baykov, A. A.; Beloborodov, K. I.; Berdyugin, A. V.; Berkaev, D. E.; Bogdanchikov, A. G.; Botov, A. A.; Dimova, T. V.; Druzhinin, V. P.; Golubev, V. B.; Kirpotin, A. N.; Kardapoltsev, L. V.; Kasaev, A. S.; Kharlamov, A. G.; Koop, I. A.; Korol, A. A.; Kovrizhin, D. P.; Kupich, A. S.; Martin, K. A.; Melnikova, N. A.; Muchnoy, N. Yu; Obrazovsky, A. E.; Pakhtusova, E. V.; Pugachev, K. V.; Rabusov, D. V.; Rogovsky, Yu A.; Savchenko, Y. S.; Senchenko, A. I.; Serednyakov, S. I.; Shatilov, D. N.; Shatunov, Yu M.; Shtol, D. A.; Shwartz, D. B.; Silagadze, Z. K.; Surin, I. K.; Timoshenko, M. V.; Usov, Yu V.; Zhabin, V. N.; Zhulanov, V. V.

В: European Physical Journal C, Том 80, № 10, 993, 01.10.2020.

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

TY - JOUR

T1 - Study of dynamics of the process e+e-→ π+π-π in the energy range 1.15–2.00 GeV

T2 - SND Collaboration

AU - Achasov, M. N.

AU - Barnyakov, A. Yu

AU - Baykov, A. A.

AU - Beloborodov, K. I.

AU - Berdyugin, A. V.

AU - Berkaev, D. E.

AU - Bogdanchikov, A. G.

AU - Botov, A. A.

AU - Dimova, T. V.

AU - Druzhinin, V. P.

AU - Golubev, V. B.

AU - Kirpotin, A. N.

AU - Kardapoltsev, L. V.

AU - Kasaev, A. S.

AU - Kharlamov, A. G.

AU - Koop, I. A.

AU - Korol, A. A.

AU - Kovrizhin, D. P.

AU - Kupich, A. S.

AU - Martin, K. A.

AU - Melnikova, N. A.

AU - Muchnoy, N. Yu

AU - Obrazovsky, A. E.

AU - Pakhtusova, E. V.

AU - Pugachev, K. V.

AU - Rabusov, D. V.

AU - Rogovsky, Yu A.

AU - Savchenko, Y. S.

AU - Senchenko, A. I.

AU - Serednyakov, S. I.

AU - Shatilov, D. N.

AU - Shatunov, Yu M.

AU - Shtol, D. A.

AU - Shwartz, D. B.

AU - Silagadze, Z. K.

AU - Surin, I. K.

AU - Timoshenko, M. V.

AU - Usov, Yu V.

AU - Zhabin, V. N.

AU - Zhulanov, V. V.

PY - 2020/10/1

Y1 - 2020/10/1

N2 - The dynamics of the process e+e-→ π+π-π 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- collider. The Dalitz plot distribution and π+π- mass spectrum are analyzed in a model including the intermediate states ρ(770) π, ρ(1450) π, and ωπ. As a result, the energy dependences of the ρ(770) π and ρ(1450) π cross sections and the relative phases between the ρ(770) π amplitude and the ρ(1450) π and ωπ amplitudes are obtained. The ρ(1450) π cross section has a peak in the energy region of the ω(1650) resonance (1.55–1.75 GeV). In this energy range the contributions of the ρ(770) π and ρ(1450) π states are of the same order of magnitude. No resonance structure near 1.65 GeV is observed in the ρ(770) π cross section. We conclude that the intermediate state ρ(1450) π gives a significant contribution to the decay of ω(1650) → π+π-π, whereas the ρ(770) π mechanism dominates in the decay ω(1420) → π+π-π.

AB - The dynamics of the process e+e-→ π+π-π 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- collider. The Dalitz plot distribution and π+π- mass spectrum are analyzed in a model including the intermediate states ρ(770) π, ρ(1450) π, and ωπ. As a result, the energy dependences of the ρ(770) π and ρ(1450) π cross sections and the relative phases between the ρ(770) π amplitude and the ρ(1450) π and ωπ amplitudes are obtained. The ρ(1450) π cross section has a peak in the energy region of the ω(1650) resonance (1.55–1.75 GeV). In this energy range the contributions of the ρ(770) π and ρ(1450) π states are of the same order of magnitude. No resonance structure near 1.65 GeV is observed in the ρ(770) π cross section. We conclude that the intermediate state ρ(1450) π gives a significant contribution to the decay of ω(1650) → π+π-π, whereas the ρ(770) π mechanism dominates in the decay ω(1420) → π+π-π.

KW - CROSS-SECTION

KW - PI(+)PI(-)PI(0)

KW - ANNIHILATION

UR - http://www.scopus.com/inward/record.url?scp=85094209373&partnerID=8YFLogxK

U2 - 10.1140/epjc/s10052-020-08524-4

DO - 10.1140/epjc/s10052-020-08524-4

M3 - Article

AN - SCOPUS:85094209373

VL - 80

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 10

M1 - 993

ER -