HEPData Search

The cross section of the reaction e + e − → K + K − has been measured at the electron-positron storage ring VEPP-2M in the c.m. energy range 1.0–1.4 GeV. At energies above 1.15 GeV the experimental values of the charged kaon form factor considerably exceed the predictions of the simplest vector dominance model with ϱ, ω, ψ mesons.

1 data table

Table 1

No description provided.

Analysis of the Reaction $\pi^- P \to \pi^0 \eta N$ at 40-{GeV}/c Beam Momentum

Apel, W.D. ; Augenstein, K.H. ; Bertolucci, E. ; et al.

Nucl.Phys.B 193 (1981) 269-286, 1981.

Inspire Record 173075 DOI 10.17182/hepdata.34254

The reaction π − p→ π 0 ηn ↳2y ↳2y has been analyzed using data of an experimental performed at the 70 GeV accelerator, with the NICE 648 channel hodoscope spectrometer for γ ray detection. Events with 4 γ seen are used for the analysis. A method is applied, which allows the determination of the number of π 0 η events for each mass, cos θ GJ and t bin. Mass spectra, t distributions and decay angular distributions for the π 0 η system are presented. The cross section for the production of A 2 0 is found to be 2.7 ± 1.1 μ b at 40 GeV/ c beam momentum. No indication of a resonant 1 − state in the π 0 η system is observed, in spite of the fact that this state is allowed for the π 0 η system on the same footing as the observed 0 + and 2 + resonances.

1 data table

Table 1

ERROR INCLUDES UNCERTAINTIES IN SEVERAL CORRECTIONS AND IN BACKGROUND SUBTRACTION.

DELTA (1236) PRODUCTION IN ANTI-NEUTRINO n ---> mu+ n pi- REACTION AT HIGH-ENERGIES

Efremenko, V.I. ; Fedotov, A.V. ; Gorichev, P.A. ; et al.

ITEP-83-1981, 1981.

Inspire Record 167553 DOI 10.17182/hepdata.40191

None

5 data tables

Table 1

No description provided.

Table 2

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Table 3

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Investigation of the Energy Dependence of the Spin Spin Correlation in the Diproton Resonance Region

Borisov, N.S. ; Vovchenko, V.G. ; Efimovykh, V.A. ; et al.

Sov.Phys.JETP 54 (1981) 841-847, 1981.

Inspire Record 173719 DOI 10.17182/hepdata.16987

None

2 data tables

Table 1

No description provided.

Table 2

No description provided.

ELASTIC D D SCATTERING UNDER SMALL ANGLES AT THE MOMENTUM OF 4.6-GEV/C.

Devenski, P.A. ; Zayachki, V.J. ; Kanazirski, Kh.M. ; et al.

Yad.Fiz. 34 (1981) 1302-1305, 1981.

Inspire Record 171881 DOI 10.17182/hepdata.17787

The experimental results on the differential cross sections of the elastic d-d scattering at deutron momentum of 4.6 GeV/c in the range of 4=momentum transferred squared 0.0275<=|t|<=0.146 (GeV/c)2 are presented. The data are analysed using the Bethe differential formula and are compared with the calculations by Glauber's model. A good accord is stated

1 data table

Table 1

X ERROR D(T)/(T) = 2.0000 PCT.