HEPData Search

The results of total cross section measurements for theνμ,$\bar \nu _\mu$ interactions with isoscalar target in the 3 – 30 GeV energy range have been presented. The data were obtained with the IHEP-JINR Neutrino Detector in the “natural” neutrino beams of the U-70 accelerator. Neutrino fluxes were obtained by averaging the spectra, based on the calculations with the use of the experimental data on secondary particle yields from the target and muon fluxes measurements in 9 gaps of the muon filter, as well as the spectra determined from quasi-elastic events and spectra defined by extrapolating differential distributiondσ/dy in the regiony=0. The significant deviation from the linear dependence forσtot versus neutrino energy is determined in the energy range less than 15 GeV.

2 data tables

Table 1

No description provided.

Table 2

No description provided.

Measurement of two photon production of the chi(c2)

The CLEO collaboration Shelkov, V. ; Dominick, J. ; Sanghera, S. ; et al.

Phys.Rev.D 50 (1994) 4265-4271, 1994.

Inspire Record 359316 DOI 10.17182/hepdata.52343

The CLEO II detector is used to search for the production of χc2 states in two-photon interactions. We use the signature χc2→γJ/ψ→γl+l− with l=e,μ. Using 1.49 fb−1 of data taken with beam energies near 5.29 GeV, the two-photon width of the χc2 is determined to be Γ(χc2→γγ)=1.08±0.30(stat)±0.26(syst) keV, in agreement with predictions from perturbative QCD.

2 data tables

Table 1

Results below were obtained usign J/psi from-factors in the two photon propogators, and assumes that only transversely polarized photons are significant inthe production of the CHI/C2(1P) state.

Table 2

No description provided.

Measurement of cross-section for gamma gamma ---> p anti-p

The CLEO collaboration Artuso, M. ; He, D. ; Goldberg, M. ; et al.

Phys.Rev.D 50 (1994) 5484-5490, 1994.

Inspire Record 358510 DOI 10.17182/hepdata.47137

A measurement of the cross section for γγ→pp¯ is performed at two-photon center-of-mass energies between 2.00 and 3.25 GeV. These results are obtained using e+e−→e+e−pp¯ events selected from 1.31 fb−1 of data taken with the CLEO II detector. The measured cross section is in reasonable agreement with previous measurements and is in excellent agreement with recent calculations based on a diquark model. However, leading order QCD calculations performed using the Brodsky-Lepage formalism are well below the measured cross section.

3 data tables

Table 1

Data read from graph.

Table 2

Data read from graph.

Table 3

Data read from graph.

RESTRAINTS ON PARAMETERS OF OSCILLATIONS OF MUON NEUTRINOS FROM QUASIELASTIC SCATTERING DATA. (IN RUSSIAN)

Belikov, S.V. ; Volkov, A.A. ; Kochetkov, V.I. ; et al.

Yad.Fiz. 41 (1985) 919-924, 1985.

Inspire Record 219091 DOI 10.17182/hepdata.17585

None

1 data table

Table 1

Axis error includes +- 0.0/0.0 contribution (?////DUE TO UNCERTAINTY IN NU SPECTRUM).

Quasielastic Neutrino and Anti-neutrinos Scattering: Total Cross-sections, Axial Vector Form-factor

Belikov, S.V. ; Bugorsky, A.P. ; Epshtein, V.Sh. ; et al.

Z.Phys.A 320 (1985) 625, 1985.

Inspire Record 195754 DOI 10.17182/hepdata.41105

Experimental results on the study of quasielastic reactionsvμn→μ−p and$\bar v_u p \to \mu ^ +n$ in the energy range 3–30 GeV are presented in this paper. Spark chamber detector with Al filters has been exposed to the wide-band neutrino and antineutrino beams at Serpukhov. Neutrino and antineutrino data have been used to reconstruct the behaviour of axial-vector form-factorFA(Q2). We measured the total cross-sections as a function of energy. The parameterMA=(1.00±0.04) GeV/c2 has been determined under the assumption of the dipole parametrization and CVC hypothesis. Upper limit for the second class currents was estimated.

2 data tables

Table 1

Statistical errors only.

Table 2

Statistical errors only.