Date

Photoproduction Cross Sections for pi+ and K+ Mesons at 3.4 TO 4.0 GeV and Their Comparison with SU (3)

Elings, V.B. ; Cohen, K.J. ; Garelick, D.A. ; et al.
Phys.Rev.Lett. 16 (1966) 474-477, 1966.
Inspire Record 50878 DOI 10.17182/hepdata.21779

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5 data tables

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Photoproduction cross sections for $\pi^+$ and $K^+$ mesons at 3.4 to 4.0 {GeV} and their comparison with {SU(3)}

Elings, V.B. ; Cohen, K.J. ; Garelick, D.A. ; et al.
Phys.Rev. 156 (1967) 1433-1443, 1967.
Inspire Record 51624 DOI 10.17182/hepdata.406

The differential cross sections for the photoproduction reactions γ+p→π++n, γ+p→K++Λ0, and γ+p→K++Σ0 have ben measured for incident laboratory photon energies between 3.4 and 4.0 GeV and for meson center-of-mass angles from about 25° to 45°. The reactions were studied by observing only the charged mesons. The momenta, velocities, and angles of the mesons were measured with a magnetic spectrometer, and the equivalent of nearly monochromatic gamma rays was obtained by performing bremsstrahlung subtractions. The cross sections agree with the inequality predicted from unbroken SU(3). The measured behavior of dσdt as a function of t shows similarities to that observed in studies of mesonnucleon scattering.

6 data tables

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Study of the charge exchange reaction pi-minus + p ---> pi-neutral + n with the pi-neutral meson backward emission at 1.55-3.8 gev/c

Antipolsky, V.D. ; Bayatyan, G.L. ; Brakhman, E.V. ; et al.
Yad.Fiz. 9 (1969) 1021-1024, 1969.
Inspire Record 56935 DOI 10.17182/hepdata.40403

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9 data tables

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Total hadronic (gamma, p) and (gamma, d) cross-sections from 4 to 18 gev/c

Caldwell, David O. ; Elings, V.B. ; Hesse, W.P. ; et al.
Phys.Rev.Lett. 25 (1970) 609-612, 1970.
Inspire Record 62881 DOI 10.17182/hepdata.21598

Photoabsorption cross sections in hydrogen and deuterium have been measured from 3.7 to 17.9 GeV. The energy dependences are similar to those of strong-interaction total cross sections, as expected from the vector-meson-dominance model. The magnitude of σT(γp) can be compared with data from γp→ρ0p to determine a γ−p coupling constant, γρ24π=0.37±0.03. This value disagrees with that obtained on the ρ mass shell, and hence there is only qualitative agreement with the vector-meson-dominance model.

1 data table

Axis error includes +- 1/1 contribution (CORRECTION OF ACCEPTANCE, POSSIBLE LOSSES, ETC).


ASYMMETRY MEASUREMENTS IN PION PHOTOPRODUCTION BY POLARIZED PHOTONS IN THE ENERGY RANGE FROM 250-MeV TO 600-MeV

Antufev, Yu.P. ; Agranovich, V.L. ; Ganenko, V.B. ; et al.
PRINT-70-2307, 1970.
Inspire Record 1105361 DOI 10.17182/hepdata.75432

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1 data table

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Coincidence measurements of single pi+ electroproduction

Brown, C.N. ; Canizares, C.R. ; Cooper, W.E. ; et al.
Phys.Rev.Lett. 26 (1971) 987-991, 1971.
Inspire Record 69020 DOI 10.17182/hepdata.21506

We have studied the reaction e−+p→e−+π++n by detecting the final electron and pion in coincidence. Data are presented in the region of virtual photon mass squared from -0.18 to -1.2 GeV2, and virtual photoproduction center-of-mass energy and angle from 1.85 to 2.50 GeV and 0 to 20°, respectively.

12 data tables

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Transmission regeneration of neutral k-mesons on hydrogen in the momentum region 14-42 gev/c

Birulev, V.K. ; Vovenko, A.S. ; Vestergombi, G. ; et al.
Yad.Fiz. 15 (1972) 959-965, 1972.
Inspire Record 76029 DOI 10.17182/hepdata.19284

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1 data table

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Elastic backward scattering of negative pions on neutrons at 23 and 40 gev/c

Babaev, A. ; Brakhman, E. ; Eliseev, G. ; et al.
Phys.Lett.B 38 (1972) 342-344, 1972.
Inspire Record 75856 DOI 10.17182/hepdata.28343

The differential cross sections of the elastic backward scattering reaction π − n→n π − has been measured at 23 and 40 GeV/ c in the u -interval −0.07 ⩽ u ⩽ 0.01 (GeV/ c ) 2 .

2 data tables

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Transmission regeneration of neutral k-mesons on hydrogen in the momentum region of 14-42 gev/c

Birulev, V.K. ; Fadeev, N.G. ; Golovanov, L.B. ; et al.
Phys.Lett.B 38 (1972) 452-456, 1972.
Inspire Record 75815 DOI 10.17182/hepdata.28334

The measurements of the transmission regeneration amplitude on hydrogen in the momentum region of 14–42 GeV/ c indicate that in accordance with the Pomeranchuk theorem its magnitude |ƒ° − ƒ °|/k decreases as energy increases and its phase is approximately constant and equal to arg (ƒ° − ƒ °) = (−118 ± 13)° .

1 data table

THE REGENERATION AMPLITUDE DECREASES OVER THIS ENERGY RANGE.


Asymmetry of the cross section of gamma d ---> pi0 d reaction at photon energy of 350 mev

Ganenko, V.B. ; Gorbenko, V.G. ; Zhebrovskii, Yu.V. ; et al.
Pisma Zh.Eksp.Teor.Fiz. 18 (1973) 483-486, 1973.
Inspire Record 87826 DOI 10.17182/hepdata.39926

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1 data table

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