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

Abstract

In experiment with the SND detector at VEPP-2M $e^{+}{e}^{-}$ collider the $e^{+}{e}^{-}\to \eta \gamma$ cross section was measured in the energy range $E$=0.60--1.38 GeV with the integrated luminosity of 27.8 pb${}^{-1}$. The measured cross section is well described by the vector meson dominance model with contributions from the $\rho (770)$, $\omega (783)$, $\varphi (1020)$, ${\rho }^{\prime }(1465)$ resonances and agrees with results of previous measurements. The decay probabilities $\BR(ϕ\toηγ)$, $\BR(ω\toηγ)$ and $\BR(ρ\toηγ)$ were measured with the accuracies better than or comparable to the world averages.

13 pages, 6 figures, 5 tables

References in corpus (14)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Mixing and Decay Constants of Pseudoscalar Mesons
• Study of the eta-eta' system in the two mixing angle scheme
• Spherical Neutral Detector for VEPP-2M collider
• Radiative Decays, Nonet Symmetry and SU(3) Breaking
• Study of the process e+e- to pi+pi-pi+pi-pi0 with CMD-2 detector
• Study of the Processes e+ e- --> eta gamma, e+ e- --> pi0 gamma --> 3 gamma in the c.m. Energy Range 600--1380 MeV at CMD-2
• Mixing of Pseudoscalar Mesons
• Study of the Process e+ e- ---> eta gamma in c.m. Energy Range 600-1380 MeV at CMD-2
• Study of the radiative decay $\varphi \to \eta \gamma$ with CMD-2 detector
• Study of the $\rho$, $\omega$, $\varphi \to \eta \gamma \to 7\gamma$ Decays with an SND Detector on a VEPP-2M Collider
• Experimental study of the decay PHI(1020)--->ETA+GAMMA in multi-photon final state
• Radiative decays of light vector mesons
• Radiative decays of light vector mesons in a quark level linear sigma model

Cited by in corpus (16)

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• Theory of the tau lepton anomalous magnetic moment
• On the gluon content of the eta and eta' mesons
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• Composition of the Pseudoscalar Eta and Eta' Mesons
• Analytical dispersive construction of $\eta \to 3\pi$ amplitude: First order in isospin breaking
• Modeling interactions of photons with pseudoscalar and vector mesons
• Reanalysis of the $e^{+}{e}^{-}\to \eta \gamma$ reaction cross section
• Study of the process $e^{+}{e}^{-}\to \eta \gamma$ in the center-of-mass energy range 1.07--2.00 GeV
• Hadronic Footprint of GeV-Mass Dark Matter
• A Mixed Tau-Electroproduction Sum Rule for V_us
• Processes of $e^{+}{e}^{-}\to (\eta ,{\eta }^{\prime },\eta (1295),\eta (1475))\gamma$ in the extended Nambu -- Jona-Lasinio model
• Solar System Tests in Brans-Dicke and Palatini f(R)-theories
• Standard Model Predictions for the Muon $(g-2)/2$
• The production of the $f_1(1285)\gamma$ and $a_1(1260)\gamma$ in colliding $e^{+}{e}^{-}$-beams in threshold domain
• The processes $e^{+}{e}^{-}\to K^{\pm }(K^{\ast \mp }(892),K^{\ast \mp }(1410))$ and $e^{+}{e}^{-}\to (\eta ,{\eta }^{{}^{\prime }}(958))(\varphi (1020),\varphi (1680))$ in the extended Nambu-Jona-Lasinio model