排序方式: 共有8条查询结果,搜索用时 18 毫秒
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Achasov M. N. Barnyakov A. Yu. 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. Yu. Obrazovsky A. E. Pakhtusova E. V. Pugachev K. V. Savchenko Ya. S. Serednyakov S. I. Silagadze Z. K. Surin I. K. Usov Yu. V. Kharlamov A. G. Shtol D. A. 《Physics of Atomic Nuclei》2021,84(2):197-200
Physics of Atomic Nuclei - The process $$e^{+}e^{-}\to\eta\pi^{0}\gamma$$ 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... 相似文献
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Achasov M. N. Barnyakov A. Yu. Barnyakov M. Yu. Beloborodov K. I. Berdyugin A. V. Bogdanchikov A. G. Botov A. A. Buzykaev A. R. Golubev V. B. Dimova T. V. Druzhinin V. P. Kardapoltsev L. V. Kovrizhin D. P. Korol A. A. Kravchenko E. A. Kupich A. S. Martin K. A. Melnikova N. A. Obrazovsky A. E. Onuchin A. P. Pakhtusova E. V. Pugachev K. V. Serednyakov S. I. Silagadze Z. K. Surin I. K. Usov Yu. V. Kharlamov A. G. Shtol D. A. 《Physics of Atomic Nuclei》2021,84(1):59-62
Physics of Atomic Nuclei - In an experiment with the SND detector at the VEPP-2000 $$e^{+}e^{-}$$ collider, the cross sections for the processes $$e^{+}e^{-}\to K^{+}K^{-}\pi^{0}$$ and... 相似文献
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Using recent BABAR, CMD-3 and SND data, the sum of e + e ? → 3(π+π?), 2(π+π?π0), \(p\bar p\) , \(n\bar n\) cross sections is obtained. Unlike e + e ? 3(π+π?) and e + e ? → 2(π+π?π0) processes, no structures in total cross section are found near the \(N\bar N\) threshold within the limits of measurement errors. 相似文献
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M. N. Achasov A. Yu. Barnyakov K. I. Beloborodov A. V. Berdyugin D. E. Berkaev A. G. Bogdanchikov A. A. Botov D. A. Bukin A. V. Vasiljev V. B. Golubev T. V. Dimova V. P. Druzhinin I. M. Zemlyansky L. V. Kardapoltsev D. P. Kovrizhin I. A. Koop A. A. Korol S. V. Koshuba K. A. Martin A. E. Obrazovsky E. V. Pakhtusova Yu. A. Rogovsky A. L. Romanov S. I. Serednyakov Z. K. Silagadze K. Yu. Skovpen A. N. Skrinsky I. K. Surin Yu. A. Tikhonov Yu. V. Usov A. G. Kharlamov P. Yu. Shatunov Yu. M. Shatunov D. B. Shvarts D. A. Shtol 《JETP Letters》2012,94(10):734-737
The cross section for the e + e ? ?? ???0 ?? ??0??0?? process has been measured in the energy range of 1.1?C1.9 GeV. The measurement has been made with the Spherical Neutral Detector at the VEPP-2000 e + e ? collider. The data in the energy range of 1.1?C1.4 GeV are in agreement with the earlier measurements with the SND and CMD-2 detectors. The cross section has also been measured above 1.4 GeV. 相似文献
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E. G. Avdeeva A. G. Bogdanchikov A. A. Botov D. A. Bukin A. V. Vasiljev V. M. Vesenev V.B. Golubev T.V. Dimova V. P. Druzhinin A. A. Korol S. V. Koshuba A. E. Obrazovsky E. V. Pakhtusova S. I. Serednyakov A. A. Sirotkin I.K. Surin Yu.V. Usov P.V. Filatov A.G. Kharlamov 《Physics of Atomic Nuclei》2010,73(11):1931-1934
A new tracking system (TS) of the Spherical Neutral Detector (SND) for experiments at the VEPP-2000 e + e ? collider is described. The TS is completely assembled, mounted on the detector, and ready for collecting data from the VEPP-2000. Test experiments with cosmic-ray events and VEPP-2000 beams showed a stable operation of the system. The simulation, calibration, and reconstruction procedures were debugged by using available data. 相似文献
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M.N.Achasov K.I.Beloborodov A.V.Berdyugin A.A.Botov V.B.Golubev T.V.Dimova V.P.Druzhinin L.V.Kardapoltsev A.G.Kharlamov D.P.Kovrizhin I.A.Koop A.A.Korol S.V.Koshuba A.E.Obrazovsky E.V.Pakhtusova D.A.Shtol S.I.Serednyakov Z.K.Silagadze A.N.Skrinsky Yu.A.Tikhonov Yu.M.Shatunov A.V.Vasil'ev 《中国物理C(英文版)》2010,34(6)
In an experiment with the Spherical Neutral Detector at VEPP-2M collider the cross section of the process e+e-→π+π-π0π0 was measured. At energies √s < 920 MeV this cross section was measured for the first time. The energy dependence of the cross section is well discribed by the vector dominance
model with contributions from ρ, ρ' ρ", mesons. The decay probability ρ→π+π-π0π0was found to be Bρ = (1.60±0.74±0.18)×10-5. The upper limit for the decay ω→π+π-π0π0 was improved by two orders of magnitude compared to the previous measurements and is Bω < 2 × 10-4 at 90% confidence level. 相似文献
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Achasov M. N. Barnyakov A. Yu. 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. Zhulanov V. V. Kardapoltsev L. V. Kovrizhin D. P. Korol A. A. Kupich A. S. Martin K. A. Melnikova N. A. Muchnoi N. Yu. Obrazovsky A. E. Pakhtusova E. V. Pugachev K. V. Savchenko Ya. S. Serednyakov S. I. Silagadze Z. K. Surin I. K. Usov Yu. V. Kharlamov A. G. Shtol D. A. 《Physics of Atomic Nuclei》2021,84(1):55-58
Physics of Atomic Nuclei - The process $$e^{+}e^{-}\to\omega\pi^{0}\to\pi^{+}\pi^{-}\pi^{0}\pi^{0}$$ was studied in the energy range between 1 and 2 GeV to the best precision in the world. The data... 相似文献
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M. N. Achasov K. I. Beloborodov A. V. Berdyugin A. A. Botov A. V. Vasil’ev V. B. Golubev T. V. Dimova V. P. Druzhinin D. P. Kovrizhin I. A. Koop A. A. Korol’ S. V. Koshuba A. E. Obrazovsky E. V. Pakhtusova S. I. Serednyakov Z. K. Silagadze A. G. Kharlamov Yu. M. Shatunov D. A. Shtol’ 《Journal of Experimental and Theoretical Physics》2009,109(3):379-392
The cross section for the process e + e ? → π+π?π0π0 has been measured in an experiment with a spherical neutral detector, with the cross section at energies √s < 920 MeV having been measured for the first time. The model of vector dominance describes well the data obtained if the ρ, ρ′, and ρ″ resonances are taken into account. The probability of the decay ρ → π+π?π0π0 is B(ρ → π+π?π0π0) = (1.60 ± 0.74 ± 0.18) × 10?5. The upper limit for the decay ω → π+π?π0π0 has been improved by two orders of magnitude compared to previous measurements and is B(ω → π+π?π0π0) < 2 × 10?4 at a 90% confidence level. 相似文献
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