Study of the $e^+e^-\to\eta\gamma$ proce...

Study of the process $e^+e^-\to\eta\gamma$ in the center-of-mass energy range 1.07--2.00 GeV

December 26, 2013

95% Match

M. N. Achasov, V. M. Aulchenko, A. Yu. Barnyakov, K. I. Beloborodov, A. V. Berdyugin, A. G. Bogdanchikov, A. A. Botov, T. V. Dimova, V. P. Druzhinin, V. B. Golubev, K. A. Grevtsov, L. V. Kardapoltsev, A. G. Kharlamov, D. P. Kovrizhin, I. A. Koop, A. A. Korol, S. V. Koshuba, A. P. Lysenko, K. A. Martin, A. E. Obrazovsky, E. V. Pakhtusova, E. A. Perevedentsev, A. L. Romanov, S. I. Serednyakov, Z. K. Silagadze, A. N. Skrinsky, I. K. Surin, Yu. A. Tikhonov, A. V. Vasiljev, P. Yu. Shatunov, ... , Shtol D. A.

High Energy Physics - Experi...

High Energy Physics - Phenom...

The $e^+e^-\to\eta\gamma$ cross section has been measured in the center-of-mass energy range 1.07--2.00 GeV using the decay mode $\eta\to 3\pi^0$, $\pi^0\to \gamma\gamma$. The analysis is based on 36 pb$^{-1}$ of integrated luminosity collected with the SND detector at the VEPP-2000 $e^+e^-$ collider. The measured cross section of about 35 pb at 1.5 GeV is explained by decays of the $\rho(1450)$ and $\phi(1680)$ resonances.

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Reanalysis of the $e^+e^-\to\eta\gamma$ reaction cross section

September 7, 2007

95% Match

M. N. Achasov, K. I. Beloborodov, A. V. Berdyugin, A. G. Bogdanchikov, A. D. Bukin, D. A. Bukin, T. V. Dimova, V. P. Druzhinin, V. B. Golubev, A. A. Korol, S. V. Koshuba, E. V. Pakhtusova, S. I. Serednyakov, ... , Vasiljev A. V.

High Energy Physics - Experi...

In the experiment with the SND detector at the VEPP-2M $e^+e^-$ collider measuring the $e^+e^-\to \eta\gamma$ cross section in the energy range $0.6<\sqrt{s}<1.38 \mathrm{GeV}$ the reanalysis of data is performed. The goal is to improve the accuracy of the previous results by analysing ambiguities in the approximation of energy dependence of the $e^+e^-\to \eta\gamma$ cross section, which were not taken into account in our previous study. We report new results on the approxim...

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Study of the process $e^+e^- \to \eta\eta\gamma$ in the energy range $\sqrt{s} = \mbox{1.17--2.00}$ GeV with the SND detector

October 12, 2021

94% Match

Collaboration SND, M. N. Achasov, A. Yu. Barnyakov, K. I. Beloborodov, A. V. Berdyugin, D. E. Berkaev, A. G. Bogdanchikov, A. A. Botov, T. V. Dimova, V. P. Druzhinin, 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, 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, ... , Zhulanov V. V.

High Energy Physics - Experi...

The process $e^+e^-\to\eta\eta\gamma$ is studied in the center-of-mass energy range 1.17-2.00 GeV using data with an integrated luminosity of 201 pb$^{-1}$collected by the SND detector at the VEPP-2000 $e^+e^-$ collider. The $e^+e^-\to\eta\eta\gamma$ cross section is measured for the first time. It is shown that the dominant mechanism of this reaction is the transition through the $\phi\eta$ intermediate state. Our result on the $e^+e^-\to\eta\eta\gamma$ cross section is cons...

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Study of the process $e^+e^- \to \eta\pi^0\gamma$ in the energy range $\sqrt{s} = \mbox{1.05-2.00}$ GeV with the SND detector

June 9, 2020

94% Match

Collaboration SND, 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, ... , Zhulanov V. V.

High Energy Physics - Experi...

The process $e^+e^-\to\eta\pi^0\gamma$ 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 $e^+e^-\to\eta\pi^0\gamma$ cross section is measured for the first time. It is shown that the dominant mechanism of this reaction is the transition through the $\omega\eta$ intermediate state. The measured cross section of the subprocess $e^+e^-\to\ome...

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Study of the $\rho$, $\omega$, $\phi\to\eta\gamma\to 7\gamma$ Decays with an SND Detector on a VEPP-2M Collider

February 14, 2002

93% Match

M. N. Achasov, S. E. Baru, K. I. Beloborodov, A. V. Berdyugin, A. V. Bozhenok, A. G. Bogdanchikov, D. A. Bukin, S. V. Burdin, A. V. Vasiljev, Yu. S. Velikzhanin, T. V. Dimova, V. P. Druzhinin, M. S. Dubrovin, D. I. Ganyushin, I. A. Gaponenko, V. B. Golubev, V. N. Ivanchenko, I. A. Koop, A. A. Korol, S. V. Koshuba, G. A. Kukartsev, E. V. Pakhtusova, A. A. Salnikov, S. I. Serednyakov, V. V. Shary, Yu. M. Shatunov, ... , Silagadze Z. K.

High Energy Physics - Experi...

The $e^+e^-\to\eta\gamma\to 7\gamma$ process was studied in the energy range $2E=600\div 1060$ MeV with an SND detector on a VEPP-2M $e^+e^-$ collider. The decay branching ratios $B(\phi\to\eta\gamma)=(1.343\pm 0.012\pm 0.055)\cdot 10^{-2}$, $B(\omega\to\eta\gamma)=(4.60\pm 0.72\pm 0.19)\cdot 10^{-4}$, and $B(\rho\to\eta\gamma)=(2.69\pm 0.32\pm 0.16)\cdot 10^{-4}$ were measured.

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Search for the process $\mathbf{\it e^+e^-\to\eta^{\prime}\gamma}$ in the energy range $\mathbf{\it \sqrt{s}}$ = 1.075 -- 2 GeV

June 25, 2024

93% Match

M. N. Achasov, A. Yu. Barnyakov, E. V. Bedarev, K. I. Beloborodov, A. V. Berdyugin, A. G. Bogdanchikov, A. A. Botov, T. V. Dimova, V. P. Druzhinin, V. N. Zhabin, Yu. M. Zharinov, L. V. Kardapoltsev, A. S. Kasaev, A. A. Kattsin, A. N. Kyrpotin, D. P. Kovrizhin, I. A. Koop, A. A. Korol, A. S. Kupich, A. P. Kryukov, N. A. Melnikova, N. Yu. Muchnoy, A. E. Obrazovsky, E. V. Pakhtusova, K. V. Pugachev, S. A. Rastigeev, Yu. A. Rogovsky, A. I. Senchenko, S. I. Serednyakov, Z. K. Silagadze, I. K. Surin, Yu. V. Usov, A. G. Kharlamov, D. E. Chistyakov, Yu. M. Shatunov, ... , Shtol D. A.

High Energy Physics - Experi...

The results of the search for the $e^+e^-\to\eta^{\prime}\gamma$ process in the center-of-mass energy range from 1.075 to 2 GeV are presented. We analyze data with an integral luminosity of 746 pb$^{-1}$ accumulated with the SND detector at the $e^+e^-$ collider VEPP-2000 in 2010--2024. The $\eta^{\prime}\to\eta\pi^0\pi^0$ decay is used in the analysis, with the subsequent $\eta$ and $\pi^0$ decays into $\gamma\gamma$. Upper limits not exceeding 13 pb have been set on the $e^...

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Measurement of the $e^+e^- \to \eta\pi^+\pi^-$ cross section in the center-of-mass energy range 1.22--2.00 GeV with the SND detector at the VEPP-2000 collider

December 5, 2014

92% Match

V. M. Aulchenko, M. N. Achasov, A. Yu. Barnyakov, K. I. Beloborodov, A. V. Berdyugin, A. G. Bogdanchikov, A. A. Botov, T. V. Dimova, V. P. Druzhinin, V. B. Golubev, L. V. Kardapoltsev, A. G. Kharlamov, I. A. Koop, A. A. Korol, S. V. Koshuba, D. P. Kovrizhin, A. S. Kupich, K. A. Martin, A. E. Obrazovsky, E. V. Pakhtusova, A. I. Senchenko, S. I. Serednyakov, Z. K. Silagadze, Yu. M. Shatunov, P. Ju. Shatunov, D. A. Shtol, D. B. Shwartz, A. N. Skrinsky, I. K. Surin, Yu. A. Tikhonov, ... , Vasiljev A. V.

High Energy Physics - Experi...

In the experiment with the SND detector at the VEPP-2000 $e^+e^-$ collider the cross section for the process $e^+e^-\to\eta\pi^+\pi^-$ has been measured in the center-of-mass energy range from 1.22 to 2.00 GeV. Obtained results are in agreement with previous measurements and have better accuracy. The energy dependence of the $e^+e^-\to\eta\pi^+\pi^-$ cross section has been fitted with the vector-meson dominance model. From this fit the product of the branching fractions $B(\r...

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Study of the e^+e^-\to\pi^0\gamma process in the energy range 0.60-1.06 GeV

October 1, 2003

92% Match

M. N. Achasov, K. I. Beloborodov, A. V. Berdugin, A. G. Bogdanchikov, A. V. Bozhenok, A. D. Bukin, D. A. Bukin, A. V. Vasiljev, T. V. Dimova, V. P. Druzhinin, V. B. Golubev, A. A. Korol, S. V. Koshuba, A. P. Lysenko, E. V. Pakhtusova, S. I. Serednyakov, Yu. M. Shatunov, V. A. Sidorov, Z. K. Silagadze, ... , Usov Yu. V.

High Energy Physics - Experi...

The process e^+e^-\to\pi^0\gamma in the energy range \sqrt{s}=0.60-1.06 GeV was studied at VEPP-2M collider with SND detector using 14 pb^{-1} of integrated luminosity. Data were analyzed in the framework of the vector meson dominance model. Preliminary results on obtained cross-section and parameters of \rho^0, \omega ,\phi \to \pi^0\gamma radiative decays are presented.

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Study of the reaction $e^+e^- \to \pi^0\gamma$ with the SND detector at the VEPP-2M collider

January 29, 2016

92% Match

M. N. SND Collaboration Achasov, K. I. SND Collaboration Beloborodov, A. V. SND Collaboration Berdyugin, A. G. SND Collaboration Bogdanchikov, T. V. SND Collaboration Dimova, V. P. SND Collaboration Druzhinin, V. B. SND Collaboration Golubev, I. A. SND Collaboration Koop, A. A. SND Collaboration Korol, S. V. Koshuba. E. V. SND Collaboration Pakhtusova, S. I. SND Collaboration Serednyakov, Yu. M. SND Collaboration Shatunov, Z. K. SND Collaboration Silagadze, A. N. SND Collaboration Skrinsky, ... , Vasiljev A. V. SND Collaboration

High Energy Physics - Experi...

The process $e^+e^- \to \pi^0\gamma$ has been studied in the experiment with the SND detector at the VEPP-2M $e^+e^-$ collider. The $e^+e^- \to \pi^0\gamma$ cross section has been measured in the center-of-mass energy range from 0.60 to 1.38 GeV. The cross section is well described by the vector meson dominance model. From the fit to the cross section data we have determined the branching fractions $B(\rho\to\pi^0\gamma)=(4.20\pm0.52)\times10^{-4}$, $B(\omega\to\pi^0\gamma)=(...

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Study of the process $e^+e^-\to\eta\gamma\to 7\gamma$ in the energy range $\sqrt{s}$ = 1.07 -- 2 GeV

June 22, 2023

92% Match

Collaboration SND, M. N. Achasov, A. Yu. Barnyakov, K. I. Beloborodov, A. V. Berdyugin, A. G. Bogdanchikov, A. A. Botov, V. S. Denisov, T. V. Dimova, V. P. Druzhinin, L. B. Fomin, A. G. Kharlamov, L. V. Kardapoltsev, A. N. Kyrpotin, I. A. Koop, A. A. Korol, D. P. Kovrizhin, A. P. Kryukov, A. S. Kupich, N. A. Melnikova, N. Yu. Muchnoi, A. E. Obrazovsky, E. V. Pakhtusova, E. A. Perevedentsev, K. V. Pugachev, Yu. A. Rogovsky, S. I. Serednyakov, Z. K. Silagadze, I. K. Surin, M. V. Timoshenko, Yu. V. Usov, V. N. Zhabin, V. V. Zhulanov, I. M. Zemlyansky, Yu. M. Shatunov, D. A. Shtol, ... , Eminov E. A.

High Energy Physics - Experi...

The $e^+e^-\to\eta\gamma$ cross section is measured in the center-of-mass energy range from 1.07 to 2.00 GeV in the decay channel $\eta\to 3\pi^0$, $\pi^0\to\gamma\gamma$. The data set with an integrated luminosity of 242 pb$^{-1}$ accumulated in the experiment with the SND detector at the VEPP-2000 $e^+e^-$ collider is analyzed.

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Study of the $e^+e^-\to\eta\gamma$ process with SND detector at the VEPP-2M $e^+e^-$ collider

Study of the process $e^+e^-\to\eta\gamma$ in the center-of-mass energy range 1.07--2.00 GeV

Reanalysis of the $e^+e^-\to\eta\gamma$ reaction cross section

Study of the process $e^+e^- \to \eta\eta\gamma$ in the energy range $\sqrt{s} = \mbox{1.17--2.00}$ GeV with the SND detector

Study of the process $e^+e^- \to \eta\pi^0\gamma$ in the energy range $\sqrt{s} = \mbox{1.05-2.00}$ GeV with the SND detector

Study of the $\rho$, $\omega$, $\phi\to\eta\gamma\to 7\gamma$ Decays with an SND Detector on a VEPP-2M Collider

Search for the process $\mathbf{\it e^+e^-\to\eta^{\prime}\gamma}$ in the energy range $\mathbf{\it \sqrt{s}}$ = 1.075 -- 2 GeV

Measurement of the $e^+e^- \to \eta\pi^+\pi^-$ cross section in the center-of-mass energy range 1.22--2.00 GeV with the SND detector at the VEPP-2000 collider

Study of the e^+e^-\to\pi^0\gamma process in the energy range 0.60-1.06 GeV

Study of the reaction $e^+e^- \to \pi^0\gamma$ with the SND detector at the VEPP-2M collider

Study of the process $e^+e^-\to\eta\gamma\to 7\gamma$ in the energy range $\sqrt{s}$ = 1.07 -- 2 GeV