Study of the process e+e-→ ηπγ in the energy range √s=1.05-2.00 GeV with the SND detector

Standard

Study of the process e⁺e^-→ ηπγ in the energy range √s=1.05-2.00 GeV with the SND detector. / Achasov, M. N.; Barnyakov, A. Yu; Baykov, A. A. et al.

In: European Physical Journal C, Vol. 80, No. 11, 1008, 01.11.2020.

Research output: Contribution to journal › Article › peer-review

Harvard

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 the process e⁺e^-→ ηπγ in the energy range √s=1.05-2.00 GeV with the SND detector', European Physical Journal C, vol. 80, no. 11, 1008. https://doi.org/10.1140/epjc/s10052-020-08556-w

APA

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 the process e⁺e^-→ ηπγ in the energy range √s=1.05-2.00 GeV with the SND detector. European Physical Journal C, 80(11), [1008]. https://doi.org/10.1140/epjc/s10052-020-08556-w

Vancouver

Achasov MN, Barnyakov AY, Baykov AA, Beloborodov KI , Berdyugin AV, Berkaev DE et al. Study of the process e⁺e^-→ ηπγ in the energy range √s=1.05-2.00 GeV with the SND detector. European Physical Journal C. 2020 Nov 1;80(11):1008. doi: 10.1140/epjc/s10052-020-08556-w

Author

Achasov, M. N. ; Barnyakov, A. Yu ; Baykov, A. A. et al. / Study of the process e⁺e^-→ ηπγ in the energy range √s=1.05-2.00 GeV with the SND detector. In: European Physical Journal C. 2020 ; Vol. 80, No. 11.

BibTeX

@article{190cf900f4774d6cbda7ffe20b9b4333,

title = "Study of the process e+e-→ ηπγ in the energy range √s=1.05-2.00 GeV with the SND detector",

abstract = "The process e+e-→ ηπγ is studied in the center-of-mass energy range 1.05–2.00 GeV using data with an integrated luminosity of 94.5 pb - 1 collected by the SND detector at the VEPP-2000 e+e- collider. The e+e-→ ηπγ cross section is measured for the first time. It is shown that the dominant mechanism of this reaction is the transition through the ωη intermediate state. The measured cross section of the subprocess e+e-→ ωη→ ηπγ is consistent with previous measurements in the e+e-→ π+π-πη mode. It is found, with a significance of 5.6 σ, that the process e+e-→ ηπγ is not completely described by hadronic vector-pseudoscalar intermediate states. The cross section of this missing contribution, which can originate from radiation processes, e. g. e+e-→ a(1450) γ, is measured. It is found to be 15–20 pb in the wide energy range from 1.3 to 1.9 GeV.",

keywords = "PI(0)PI(0)GAMMA",

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 = nov,

day = "1",

doi = "10.1140/epjc/s10052-020-08556-w",

language = "English",

volume = "80",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "11",

}

RIS

TY - JOUR

T1 - Study of the process e+e-→ ηπγ in the energy range √s=1.05-2.00 GeV with the SND detector

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 - 2020/11/1

Y1 - 2020/11/1

N2 - The process e+e-→ ηπγ is studied in the center-of-mass energy range 1.05–2.00 GeV using data with an integrated luminosity of 94.5 pb - 1 collected by the SND detector at the VEPP-2000 e+e- collider. The e+e-→ ηπγ cross section is measured for the first time. It is shown that the dominant mechanism of this reaction is the transition through the ωη intermediate state. The measured cross section of the subprocess e+e-→ ωη→ ηπγ is consistent with previous measurements in the e+e-→ π+π-πη mode. It is found, with a significance of 5.6 σ, that the process e+e-→ ηπγ is not completely described by hadronic vector-pseudoscalar intermediate states. The cross section of this missing contribution, which can originate from radiation processes, e. g. e+e-→ a(1450) γ, is measured. It is found to be 15–20 pb in the wide energy range from 1.3 to 1.9 GeV.

AB - The process e+e-→ ηπγ is studied in the center-of-mass energy range 1.05–2.00 GeV using data with an integrated luminosity of 94.5 pb - 1 collected by the SND detector at the VEPP-2000 e+e- collider. The e+e-→ ηπγ cross section is measured for the first time. It is shown that the dominant mechanism of this reaction is the transition through the ωη intermediate state. The measured cross section of the subprocess e+e-→ ωη→ ηπγ is consistent with previous measurements in the e+e-→ π+π-πη mode. It is found, with a significance of 5.6 σ, that the process e+e-→ ηπγ is not completely described by hadronic vector-pseudoscalar intermediate states. The cross section of this missing contribution, which can originate from radiation processes, e. g. e+e-→ a(1450) γ, is measured. It is found to be 15–20 pb in the wide energy range from 1.3 to 1.9 GeV.

KW - PI(0)PI(0)GAMMA

UR - http://www.scopus.com/inward/record.url?scp=85094635825&partnerID=8YFLogxK

U2 - 10.1140/epjc/s10052-020-08556-w

DO - 10.1140/epjc/s10052-020-08556-w

M3 - Article

AN - SCOPUS:85094635825

VL - 80

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 11

M1 - 1008

ER -

ID: 25841956