Savinov, Vladimir
Two-Photon
[10.0, 100.0]
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A Measurement of the form-factors of light pseudoscalar mesons at a large momentum transfer

The CLEO collaboration Savinov, Vladimir ;
203-208, 1995.
Inspire Record 397179 DOI 10.17182/hepdata.18789

Using the CLEO-II detector, we have studied the exclusive two-photon production of the light pseudoscalar mesons in a single tagged mode. We report on a preliminary measurement of the $\pi~0$, $\eta$ and $\eta~{\prime}$ electromagnetic form factors in the $Q~2$ region from 2 ${\rm (GeV/c)}~2$ to 20 ${\rm (GeV/c)}~2$.}

1 data table match query
Table 4

The value of CONST is obtained from the fitting of Q2-dependence of form-factor by function F(Q2)*M**3/(64*pi) = WIDTH(ETAPRIME --> 2GAMMA)/(1 + Q2/CONST**2)**2.


Lambda Antilambda production in two-photon interactions at CLEO.

The CLEO collaboration Anderson, S. ; Kubota, Y. ; Lattery, M. ; et al.
Phys.Rev.D 56 (1997) R2485-R2489, 1997.
Inspire Record 439745 DOI 10.17182/hepdata.47140

Using the CLEO detector at the Cornell $e~+e~-$ storage ring, CESR, we study the two-photon production of $\Lambda \overline{\Lambda}$, making the first observation of $\gamma \gamma \to \Lambda \overline{\Lambda}$. We present the cross-section for $ \gamma \gamma \to \Lambda \overline{\Lambda}$ as a function of the $\gamma \gamma$ center of mass energy and compare it to that predicted by the quark-diquark model.

3 data tables match query
Table 1

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Table 2

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Table 3

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