New Data from SND Detector in Novosibirs...

Evidence of phi --> pi0 pi0 gamma and phi --> pi0 eta gamma decays in SND experiment at VEPP-2M

November 27, 1997

87% Match

M. N. Achasov, A. V. Berdyugin, A. V. Bozhenok, A. D. Bukin, D. A. Bukin, S. V. Burdin, T. V. Dimova, V. P. Druzhinin, M. S. Dubrovin, I. A. Gaponenko, V. B. Golubev, V. N. Ivanchenko, I. A. Koop, A. A. Korol, S. V. Koshuba, E. V. Pakhtusova, A. A. Salnikov, S. I. Serednyakov, V. V. Shary, Yu. M. Shatunov, V. A. Sidorov, Z. K. Silagadze, ... , Usov Yu. V.

High Energy Physics - Experi...

Preliminary results on the study of e+e- --> phi(1020) --> pi0 pi0 gamma, eta pi0 gamma processes from SND experiment at VEPP-2M collider in Novosibirsk are presented. Branching ratios of rare radiative phi --> pi0 pi0 gamma and phi --> pi0 eta gamma decays are measured: B(phi --> pi0 pi0 gamma ) = (1.1 +- 0.2) * 10^-4 (invariant mass (pi0 pi0) < 800 MeV), B(phi --> eta pi0 gamma ) = (1.3 +- 0.5) * 10^-4.

Find SimilarView on arXiv

Study of the process $e^+e^-\to\omega\eta\pi^0$ in the energy range $\sqrt{s} <2$ GeV with the SND detector

June 21, 2016

87% Match

M. N. Achasov, V. M. Aulchenko, A. Yu. Barnyakov, K. I. Beloborodov, A. V. Berdyugin, D. E. Berkaev, 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, D. P. Kovrizhin, S. V. Koshuba, A. S. Kupich, A. P. Lysenko, N. A. Melnikova, K. A. Martin, E. V. Pakhtusova, A. E. Obrazovsky, E. A. Perevedentsev, Yu. A. Rogovsky, S. I. Serednyakov, Z. K. Silagadze, Yu. M. Shatunov, P. Yu. Shatunov, D. A. Shtol, A. N. Skrinsky, I. K. Surin, Yu. A. Tikhonov, Yu. V. Usov, ... , Zemlyansky I. M.

High Energy Physics - Experi...

The process $e^+e^-\to\omega\eta\pi^0$ is studied in the energy range $1.45-2.00$ GeV using data with an integrated luminosity of 33 pb$^{-1}$ accumulated by the SND detector at the $e^+e^-$ collider VEPP-2000. The $e^+e^-\to\omega\eta\pi^0$ cross section is measured for the first time. The cross section has a threshold near 1.75 GeV. Its value is about 2 nb in the energy range $1.8-2.0$ GeV. The dominant intermediate state for the process $e^+e^- \to \omega\eta\pi^0$ is foun...

Find SimilarView on arXiv

Investigation of the $e^+e^- \to \omega \pi^0 \to \pi^0 \pi^0 \gamma$ reaction in the energy domain near the $\phi$-meson

July 16, 1999

87% Match

M. N. Achasov, V. M. Aulchenko, A. V. Berdyugin, A. V. Bozhenok, D. A. Bukin, S. V. Burdin, T. V. Dimova, V. P. Druzhinin, M. S. Dubrovin, I. A. Gaponenko, V. B. Golubev, V. N. Ivanchenko, I. A. Koop, A. A. Korol, S. V. Koshuba, E. V. Pakhtusova, A. A. Salnikov, V. V. Shary, S. I. Serednyakov, Yu. M. Shatunov, V. A. Sidorov, ... , Valishev A. A.

High Energy Physics - Experi...

High Energy Physics - Phenom...

The $e^+e^- \to \omega \pi^0 \to \pi^0 \pi^0 \gamma$ process was investigated in the SND experiment at the VEPP-2M collider. A narrow energy interval near the $\phi$-meson was scanned. The observed cross-section reveals, at the level of three standard deviation, the interference effect caused by $\phi \to \pi^0\pi^0\gamma$ decay. The cross-section parameters, as well as the real and imaginary parts of the $\phi$-meson related amplitude, were measured.

Find SimilarView on arXiv

Rare Phi Decays and Exotic Hadrons

October 27, 1999

87% Match

Sergey Budker Institute of Nuclear Physics Serednyakov

High Energy Physics - Experi...

The results of the experimental study of the reactions e+e-->\pi\pi\gamma, \eta\pi\gamma, \eta'\gamma, \omega\pi,... at VEPP-2M collider with CMD-2 and SND detectors are presented. The branching ratios of \phi, \rho, \omega rare decays were measured. The problem of the possible exotic nature of f0(980), a(980) scalar mesons is discussed.

Find SimilarView on arXiv

Decay phi->pi+pi-

January 21, 2000

86% Match

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

High Energy Physics - Experi...

The process e+e- ->pi+pi- has been studied with the SND detector at VEPP-2M e+e- collider in the vicinity of phi(1020) resonance. From the analysis of the energy dependence of measured cross section the branching ratio B(phi->pi+pi-)=(7.1+-1.1+-0.9)*10^{-5} and the phase psi_pi=-(34+-4+-3)degrees of interference with the non-resonant pi+pi- production amplitude were obtained.

Find SimilarView on arXiv

New experimental data for the decays $\phi\to\mu^+\mu^-$ and $\phi\to\pi^+\pi^-$ from SND detector

November 1, 1999

86% Match

M. N. Achasov, V. M. Aulchenko, K. I. Beloborodov, A. V. Berdyugin, A. V. Bozhenok, D. A. Bukin, S. V. Burdin, T. V. Dimova, S. I. Dolinsky, A. A. Drozdetsky, V. P. Druzhinin, M. S. Dubrovin, I. A. Gaponenko, V. B. Golubev, V. N. Ivanchenko, P. M. Ivanov, A. A. Korol, S. V. Koshuba, G. A. Kukartsev, I. N. Nesterenko, A. V. Otboev, E. V. Pakhtusova, V. M. Popov, A. A. Salnikov, S. I. Serednyakov, V. V. Shary, Yu. M. Shatunov, V. A. Sidorov, Z. K. Silagadze, Yu. V. Usov, ... , Zakharov A. S.

High Energy Physics - Experi...

The processes $e^+e^-\to\mu^+\mu^-$ and $e^+e^-\to\pi^+\pi^-$ have been studied with SND detector at VEPP-2M $e^+e^-$ collider in the vicinity of $\phi(1020)$ resonance. The branching ratios $B(\phi\to\mu^+\mu^-)=(3.30\pm 0.45\pm 0.32)\times 10^{-4}$ and $B(\phi\to\pi^+\pi^-)=(0.71\pm 0.11\pm 0.09)\times 10^{-4}$ were obtained.

Find SimilarView on arXiv

Experimental Study of rho -> pi0 pi0 gamma and omega -> pi0 pi0 gamma Decays

May 21, 2002

86% Match

M. N. Achasov, K. I. Beloborodov, A. V. Berdyugin, A. G. Bogdanchikov, A. V. Bozhenok, D. A. Bukin, S. V. Burdin, A. V. Vasiljev, V. B. Golubev, T. V. Dimova, V. P. Druzhinin, V. N. Ivanchenko, A. A. Korol, I. A. Koop, S. V. Koshuba, A. V. Otboev, E. V. Pakhtusova, A. A. Salnikov, S. I. Serednyakov, V. A. Sidorov, Z. K. Silagadze, A. N. Skrinsky, A. G. Skripkin, Yu. V. Usov, ... , Shatunov Yu. M.

High Energy Physics - Experi...

The e+e- -> pi0 pi0 gamma process was studied in the SND experiment at VEPP-2M e+e- collider in the energy region 0.60-0.97 GeV. From the analysis of the energy dependence of measured cross section the branching ratios B(omega -> pi0 pi0 gamma)= (6.6 +1.4-0.8(stat) +-0.6(syst))x10^-5 and B(rho -> pi0 pi0 gamma)=(4.1 +1.0-0.9(stat) +-0.3(syst))x10^-5 were obtained.

Find SimilarView on arXiv

Study of e+e- --> omega pi0 --> pi0 pi0 gamma in the energy range 1.05--2.00 GeV with SND

March 21, 2013

86% 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, I. N. Nesterenko, A. E. Obrazovsky, E. V. Pakhtusova, E. A. Perevedentsev, A. L. Romanov, S. I. Serednyakov, Z. K. Silagadze, K. Yu. Skovpen, A. N. Skrinsky, I. K. Surin, Yu. A. Tikhonov, A. V. Vasiljev, P. Yu. Shatunov, Yu. M. Shatunov, D. A. Shtol, ... , Zemlyansky I. M.

High Energy Physics - Experi...

The cross section for the process e+e- --> omega pi0 --> pi0 pi0 gamma has been measured in the energy range 1.05--2.00 GeV. The experiment has been performed at the e+e- collider VEPP-2000 with the SND detector. The measured e+e- --> omega pi0 cross section above 1.4 GeV is the most accurate to date. Below 1.4 GeV our data are in good agreement with the previous SND and CMD-2 measurements. Data on the e+e- --> omega pi0 cross section are well described by the VMD model with ...

Find SimilarView on arXiv

The process $e^+e^-\to\omega\pi^0\to\pi^0\pi^0\gamma$ up to 1.4 GeV

May 23, 2000

86% Match

M. N. Achasov, K. I. Beloborodov, A. V. Berdyugin, A. G. Bogdanchikov, A. V. Bozhenok, D. A. Bukin, S. V. Burdin, V. B. Golubev, T. V. Dimova, A. A. Drozdetsky, V. P. Druzhinin, M. S. Dubrovin, V. N. Ivanchenko, A. A. Korol, S. V. Koshuba, G. A. Kukartsev, I. N. Nesterenko, E. V. Pakhtusova, E. A. Perevedentsev, V. M. Popov, A. A. Salnikov, S. I. Serednyakov, V. V. Shary, Yu. M. Shatunov, V. A. Sidorov, Z. K. Silagadze, A. N. Skrinsky, A. G. Skripkin, Yu. V. Usov, A. A. Valishev, ... , Velikzhanin Yu. S.

High Energy Physics - Experi...

The cross section of the $e^+e^-\to\omega\pi^0\to\pi^0\pi^0\gamma$ reaction was measured by the SND detector at VEPP-2M $e^+e^-$ collider in the energy range from threshold up to 1.4 GeV. Results of the cross section fitting by the sum of $\rho$, $\rho^{\prime}$ and $\rho^{\prime\prime}$ contributions are presented.

Find SimilarView on arXiv

Search for Lepton Flavor Violation Process e^+e^- \to e\mu in the Energy Region \sqrt{s}=984 -- 1060 MeV and \phi\to e\mu Decay

November 6, 2009

86% Match

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

High Energy Physics - Experi...

The search for lepton-flavor-violation process e^+e^-\to e\mu in the energy region \sqrt{s}=984 - 1060 MeV with SND detector at VEPP-2M e^+e^- collider is reported. The model independent 90% CL upper limits on the e^+e^-\to e\mu cross section, \sigma_{e\mu} < 11 pb, as well as on the corresponding \phi\to e\mu branching fraction, B(\phi\to e\mu) < 2 \times 10^{-6}, for the final particles polar angles 55^\circ<\theta<125^\circ, were obtained.

Find SimilarView on arXiv

New Data from SND Detector in Novosibirsk

Evidence of phi --> pi0 pi0 gamma and phi --> pi0 eta gamma decays in SND experiment at VEPP-2M

Study of the process $e^+e^-\to\omega\eta\pi^0$ in the energy range $\sqrt{s} <2$ GeV with the SND detector

Investigation of the $e^+e^- \to \omega \pi^0 \to \pi^0 \pi^0 \gamma$ reaction in the energy domain near the $\phi$-meson

Rare Phi Decays and Exotic Hadrons

Decay phi->pi+pi-

New experimental data for the decays $\phi\to\mu^+\mu^-$ and $\phi\to\pi^+\pi^-$ from SND detector

Experimental Study of rho -> pi0 pi0 gamma and omega -> pi0 pi0 gamma Decays

Study of e+e- --> omega pi0 --> pi0 pi0 gamma in the energy range 1.05--2.00 GeV with SND

The process $e^+e^-\to\omega\pi^0\to\pi^0\pi^0\gamma$ up to 1.4 GeV

Search for Lepton Flavor Violation Process e^+e^- \to e\mu in the Energy Region \sqrt{s}=984 -- 1060 MeV and \phi\to e\mu Decay