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NEUTRAL MESON PHOTOPRODUCTION FROM HYDROGEN AT FORWARD ANGLES IN THE PHOTON ENERGY RANGE 750-MeV - 1500-MeV

Hatch, G.Laurie ; Tollestrup, Alvin V. ;
RX-152, 1966.
Inspire Record 50286 DOI 10.17182/hepdata.37214

NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. Measurements have been made of the cross-sections for neutral meson photoproduction from protons at angles in the forward hemisphere for photon energies near 911, 1182, and 1390 MeV. The experimental method consists of detecting the decay gamma-rays of the neutral meson in two pb-glass total absorption Cerenkov counters. The results agree very well with the existing data where the same points have been measured. The striking feature of the angular distributions at 1182 and 1390 MeV is the small 0[degree] cross-section and the peak near 30[degrees] to 40[degrees] in the CMS. Using as a model for the cross-section calculation a vector meson X[degrees] exchange plus background, we find the product [...] for M[subscript X] = 788 MeV. Fits made without the vector meson pole are not inconsistent with a resonance model for the cross-section.

4 data tables
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A study of resonance production and decay and elastic scattering in $\pi^{-}$p two-prong interactions, 2.05 to 3.22 GeV/c

Jacobs, L.D. ;
PhD Thesis, Calif. U. Berkeley, 1966.
Inspire Record 923538 DOI 10.17182/hepdata.18480

None

6 data tables
Table 1

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Table 2

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PHOTOPRODUCTION OF ETA MESONS FROM 950-MeV TO 1100-MeV

Heusch, C.A. ; Prescott, C.Y. ; Bloom, Elliott D. ; et al.
Phys.Rev.Lett. 17 (1966) 573, 1966.
Inspire Record 50081 DOI 10.17182/hepdata.21826

None

1 data table
Table 1

No description provided.


PION-PROTON ELASTIC SCATTERING FROM 2.3-6.0 BEV/C WITH SPECIAL REFERENCE TO THE BACKWARD DIRECTION

Williams, David Gerald ;
PhD Thesis, Michigan U., 1966.
Inspire Record 1407538 DOI 10.17182/hepdata.70292

None

12 data tables
Table 1

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$\pi^+ p$ Elastic Scatterings at 2.35 and 2.90 BeV/c

Kramer, Paul R. ; Plano, Richard J. ;
PhD Thesis, Rutgers U., Piscataway, 1966.
Inspire Record 1407272 DOI 10.17182/hepdata.69629

None

3 data tables
Table 1

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Photoproduction of the Eta Particle at 800-1000 MeV. A Comparison Between the piN and the etaN Systems

Bacci, C. ; Penso, G. ; Salvini, G. ; et al.
Phys.Rev.Lett. 16 (1966) 157-161, 1966.
Inspire Record 944921 DOI 10.17182/hepdata.21793

None

1 data table
Table 1

No description provided.


Photoproduction of Positive Pions from Hydrogen at Energies Near the First Resonance

Alvarez, R.A. ;
Phys.Rev. 142 (1966) 957-971, 1966.
Inspire Record 944957 DOI 10.17182/hepdata.26683

Angular distributions for positive-pion photoproduction from liquid hydrogen have been measured at photon energies near 225, 250, 275, 300, and 350 MeV. These have been normalized to an absolute cross section near the peak of the first resonance, measured by means of a polyethylene-carbon subtraction using solid targets. The results are compared with results of previous experiments as well as several dispersion-theoretic predictions of the cross sections. The data can be fitted within the experimental and theoretical uncertainties by a theoretical calculation containing only the pion pole term and the transition to the P3,3 state due to the first resonance.

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.Lett. 16 (1966) 474-477, 1966.
Inspire Record 50878 DOI 10.17182/hepdata.21779

None

5 data tables
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$\pi^-$ - p interactions at 775 {MeV}

Bertanza, L. ; Bigi, A. ; Carrara, R. ; et al.
Nuovo Cim.A 44 (1966) 712-725, 1966.
Inspire Record 50377 DOI 10.17182/hepdata.1063

The interactions of 775 MeV (kinetic energy) π−-mesons in a hydrogen bubble chamber have been studied. Total and partial crosssections have been determined with the following results: σ (total) = (39.0±1.6) mb, σ (elastic)=(14.8±0.7) mb, σ (π− + p → all neutrals) = (9.0 ± 0.5) mb, σ (π− + p = π− + π+ + n) = (9.8 ± 0.5) mb, and σ (π− + p = π− + p + π0) = (4.8 ± 0.3) mb. The elastic-scattering angular distribution has been fitted with a Legendre polynomial series terminated at the fifth order. Various angular and effective-mass distributions of single-π production are presented and discussed in terms of the Olsson-Yodh and O.P.E. models.

3 data tables
Table 1

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Photoproduction of Single Positive Pions Between 1.2 and 3 GeV

Buschhorn, G. ; Carroll, J. ; Eandi, R.D. ; et al.
Phys.Rev.Lett. 17 (1966) 1027-1030, 1966.
Inspire Record 50803 DOI 10.17182/hepdata.21795

Differential cross sections for the reaction γ+p→n+π+ are presented for incident photon energies between 1.2 and 3 GeV and pion center-of-mass production angles of 15 to 50 deg.

11 data tables
Table 1

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