Dharmawardane, K.V.
Integrated Cross Section
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rivet Analysis
Measurement of the $e^+e^- \to\pi^+\pi^- $ process cross section with the SND detector at the VEPP-2000 collider in the energy region $0.525<\sqrt{s}<0.883$ GeV

The SND collaboration Achasov, M.N. ; Baykov, A.A. ; Barnyakov, A.Yu. ; et al.
JHEP 01 (2021) 113, 2021.
Inspire Record 1789269 DOI 10.17182/hepdata.114983

The cross section of the process $e^+ e^-\to\pi^+\pi^-$ has been measured in the Spherical Neutral Detector (SND) experiment at the VEPP-2000 $e^+e^-$ collider VEPP-2000 in the energy region $525 <\sqrt[]{s} <883$ MeV. The measurement is based on data with an integrated luminosity of about 4.6 pb$^{-1}$. The systematic uncertainty of the cross section determination is 0.8 % at $\sqrt{s}>0.600$ GeV. The $\rho$ meson parameters are obtained as $m_\rho = 775.3\pm 0.5\pm 0.6$ MeV, $\Gamma_\rho = 145.6\pm 0.6\pm 0.8$ MeV, $B_{\rho\to e^+ e^-}\times B_{\rho\to\pi^+\pi^-} = (4.89\pm 0.02\pm 0.04)\times 10^{-5}$, and the parameters of the $e^+ e^-\to\omega\to\pi^+\pi^-$ process, suppressed by $G$-parity, as $B_{\omega\to e^+ e^-}\times B_{\omega\to\pi^+\pi^-}= (1.32\pm 0.06\pm 0.02)\times 10^{-6} $ and $\phi_{\rho\omega} = 110.7\pm 1.5\pm1.0$ degrees.

3 data tables
Table 1

The Born cross section of the process e+e- -> pi+pi- taking into account the radiative corrections due to the initial and final state radiation.

Table 2

Measured value of the pion form factor

Table 3

The bare e+e- -> pi+pi- undressed cross without vacuum polarization, but with the final state radiative correction.


MEASUREMENT OF THE INVERSE BETA DECAY CROSS-SECTION BY MEANS OF SCINTILLATION DETECTOR AT THE ROVNO APS. (IN RUSSIAN)

Afonin, A.I. ; Bogatov, S.A. ; Borovoi, A.A. ; et al.
Yad.Fiz. 42 (1985) 1138-1145, 1985.
Inspire Record 227725 DOI 10.17182/hepdata.17562

None

1 data table
Table 1

No description provided.


CROSS-SECTION FOR THE INVERSE BETA DECAY OF THE PROTON FROM NUCLEAR REACTOR MEASUREMENTS

Afonin, A.I. ; Bogatov, S.A. ; Borovoi, A.A. ; et al.
JETP Lett. 38 (1983) 436-438, 1983.
Inspire Record 205424 DOI 10.17182/hepdata.16912

None

1 data table
Table 1

Axis error includes +- 9./9. contribution.