Study of the Process e+e− → ηπ0γ in the Cossision-Energy Range of √s=1.05−2.00 GeV

Standard

Study of the Process e⁺e⁻ → ηπ⁰γ in the Cossision-Energy Range of √s=1.05−2.00 GeV. / Achasov, M. N.; Barnyakov, A. Yu; Baykov, A. A. et al.

In: Physics of Atomic Nuclei, Vol. 84, No. 2, 12, 03.2021, p. 197-200.

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

Harvard

Achasov, MN, Barnyakov, AY, Baykov, AA, Beloborodov, KI , Berdyugin, AV, Bogdanchikov, AG, Botov, AA, Golubev, VB, Dimova, TV , Druzhinin, VP , Zhabin, VN , Kardapoltsev, LV, Kovrizhin, DP, Korol, AA , Kupich, AS, Martin, KA, Melnikova, NA, Muchnoi, NY, Obrazovsky, AE, Pakhtusova, EV, Pugachev, KV , Savchenko, YS , Serednyakov, SI , Silagadze, ZK, Surin, IK, Usov, YV, Kharlamov, AG & Shtol, DA 2021, 'Study of the Process e⁺e⁻ → ηπ⁰γ in the Cossision-Energy Range of √s=1.05−2.00 GeV', Physics of Atomic Nuclei, vol. 84, no. 2, 12, pp. 197-200. https://doi.org/10.1134/S1063778821010038

APA

Achasov, M. N., Barnyakov, A. Y., Baykov, A. A., Beloborodov, K. I., Berdyugin, A. V., Bogdanchikov, A. G., Botov, A. A., Golubev, V. B., Dimova, T. V., Druzhinin, V. P., Zhabin, V. N., Kardapoltsev, L. V., Kovrizhin, D. P., Korol, A. A., Kupich, A. S., Martin, K. A., Melnikova, N. A., Muchnoi, N. Y., Obrazovsky, A. E., ... Shtol, D. A. (2021). Study of the Process e⁺e⁻ → ηπ⁰γ in the Cossision-Energy Range of √s=1.05−2.00 GeV. Physics of Atomic Nuclei, 84(2), 197-200. [12]. https://doi.org/10.1134/S1063778821010038

Vancouver

Achasov MN, Barnyakov AY, Baykov AA, Beloborodov KI , Berdyugin AV, Bogdanchikov AG et al. Study of the Process e⁺e⁻ → ηπ⁰γ in the Cossision-Energy Range of √s=1.05−2.00 GeV. Physics of Atomic Nuclei. 2021 Mar;84(2):197-200. 12. doi: 10.1134/S1063778821010038

Author

Achasov, M. N. ; Barnyakov, A. Yu ; Baykov, A. A. et al. / Study of the Process e⁺e⁻ → ηπ⁰γ in the Cossision-Energy Range of √s=1.05−2.00 GeV. In: Physics of Atomic Nuclei. 2021 ; Vol. 84, No. 2. pp. 197-200.

BibTeX

@article{047600a8c70b4353a9a4b87d867f40e5,

title = "Study of the Process e+e− → ηπ0γ in the Cossision-Energy Range of √s=1.05−2.00 GeV",

abstract = "The process e+e− → ηπ0γ is studied in the range of center-of-mass (c.m.) collision energies between 1.05 and 2.00 GeV on the basis of data corresponding to an integrated luminosity of 94.5 pb-1 that were accumulated in an experiment with the SND detector at the VEPP-2000 e+e− collider. The cross section for this process was measured for the first time and was found to receive a dominant contribution from the mechanism of a transition through an ωη intermediate state. The cross section measured for the process e+e− → ωη → ηπ0γ agrees with the results of earlier measurements in the channel e+e− → π+π−π0η. At a level of 5.7 standard deviations (5.7 σ), it is established that the process e+e− → ηπ0γ is not fully described by hadronic intermediate states of the VP type. The cross section was measured for this missing contribution, which may be generated by radiative processes—for example, e+e− → a0(1450)γ. It ranges from 15 to 20 pb over a broad energy interval extending from 1.3 to 1.9 GeV.",

author = "Achasov, {M. N.} and Barnyakov, {A. Yu} and Baykov, {A. A.} and Beloborodov, {K. I.} and Berdyugin, {A. V.} and Bogdanchikov, {A. G.} and Botov, {A. A.} and Golubev, {V. B.} and Dimova, {T. V.} and Druzhinin, {V. P.} and Zhabin, {V. N.} and Kardapoltsev, {L. V.} and Kovrizhin, {D. P.} and Korol, {A. A.} and Kupich, {A. S.} and Martin, {K. A.} and Melnikova, {N. A.} and Muchnoi, {N. Yu} and Obrazovsky, {A. E.} and Pakhtusova, {E. V.} and Pugachev, {K. V.} and Savchenko, {Ya S.} and Serednyakov, {S. I.} and Silagadze, {Z. K.} and Surin, {I. K.} and Usov, {Yu V.} and Kharlamov, {A. G.} and Shtol, {D. A.}",

year = "2021",

month = mar,

doi = "10.1134/S1063778821010038",

language = "English",

volume = "84",

pages = "197--200",

journal = "Physics of Atomic Nuclei",

issn = "1063-7788",

publisher = "Maik Nauka-Interperiodica Publishing",

number = "2",

}

RIS

TY - JOUR

T1 - Study of the Process e+e− → ηπ0γ in the Cossision-Energy Range of √s=1.05−2.00 GeV

AU - Achasov, M. N.

AU - Barnyakov, A. Yu

AU - Baykov, A. A.

AU - Beloborodov, K. I.

AU - Berdyugin, A. V.

AU - Bogdanchikov, A. G.

AU - Botov, A. A.

AU - Golubev, V. B.

AU - Dimova, T. V.

AU - Druzhinin, V. P.

AU - Zhabin, V. N.

AU - Kardapoltsev, L. V.

AU - Kovrizhin, D. P.

AU - Korol, A. A.

AU - Kupich, A. S.

AU - Martin, K. A.

AU - Melnikova, N. A.

AU - Muchnoi, N. Yu

AU - Obrazovsky, A. E.

AU - Pakhtusova, E. V.

AU - Pugachev, K. V.

AU - Savchenko, Ya S.

AU - Serednyakov, S. I.

AU - Silagadze, Z. K.

AU - Surin, I. K.

AU - Usov, Yu V.

AU - Kharlamov, A. G.

AU - Shtol, D. A.

PY - 2021/3

Y1 - 2021/3

N2 - The process e+e− → ηπ0γ is studied in the range of center-of-mass (c.m.) collision energies between 1.05 and 2.00 GeV on the basis of data corresponding to an integrated luminosity of 94.5 pb-1 that were accumulated in an experiment with the SND detector at the VEPP-2000 e+e− collider. The cross section for this process was measured for the first time and was found to receive a dominant contribution from the mechanism of a transition through an ωη intermediate state. The cross section measured for the process e+e− → ωη → ηπ0γ agrees with the results of earlier measurements in the channel e+e− → π+π−π0η. At a level of 5.7 standard deviations (5.7 σ), it is established that the process e+e− → ηπ0γ is not fully described by hadronic intermediate states of the VP type. The cross section was measured for this missing contribution, which may be generated by radiative processes—for example, e+e− → a0(1450)γ. It ranges from 15 to 20 pb over a broad energy interval extending from 1.3 to 1.9 GeV.

AB - The process e+e− → ηπ0γ is studied in the range of center-of-mass (c.m.) collision energies between 1.05 and 2.00 GeV on the basis of data corresponding to an integrated luminosity of 94.5 pb-1 that were accumulated in an experiment with the SND detector at the VEPP-2000 e+e− collider. The cross section for this process was measured for the first time and was found to receive a dominant contribution from the mechanism of a transition through an ωη intermediate state. The cross section measured for the process e+e− → ωη → ηπ0γ agrees with the results of earlier measurements in the channel e+e− → π+π−π0η. At a level of 5.7 standard deviations (5.7 σ), it is established that the process e+e− → ηπ0γ is not fully described by hadronic intermediate states of the VP type. The cross section was measured for this missing contribution, which may be generated by radiative processes—for example, e+e− → a0(1450)γ. It ranges from 15 to 20 pb over a broad energy interval extending from 1.3 to 1.9 GeV.

UR - http://www.scopus.com/inward/record.url?scp=85105473810&partnerID=8YFLogxK

UR - https://www.elibrary.ru/item.asp?id=46047215

U2 - 10.1134/S1063778821010038

DO - 10.1134/S1063778821010038

M3 - Article

AN - SCOPUS:85105473810

VL - 84

SP - 197

EP - 200

JO - Physics of Atomic Nuclei

JF - Physics of Atomic Nuclei

SN - 1063-7788

IS - 2

M1 - 12

ER -

ID: 28551319