Miller, Guthrie
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Determination of the total photon - proton cross-section from high-energy inelastic electron scattering

Bloom, Elliott D. ; Cottrell, R.Leslie ; Coward, D.H. ; et al.
SLAC-PUB-0653, 1969.
Inspire Record 54903 DOI 10.17182/hepdata.9945

None

11 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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High-Energy Inelastic e p Scattering at 6-Degrees and 10-Degrees

Bloom, Elliott D. ; Coward, D.H. ; DeStaebler, H.C. ; et al.
Phys.Rev.Lett. 23 (1969) 930-934, 1969.
Inspire Record 54874 DOI 10.17182/hepdata.21635

Cross sections for inelastic scattering of electrons from hydrogen were measured for incident energies from 7 to 17 GeV at scattering angles of 6° to 10° covering a range of squared four-momentum transfers up to 7.4 (GeV/c)2. For low center-of-mass energies of the final hadronic system the cross section shows prominent resonances at low momentum transfer and diminishes markedly at higher momentum transfer. For high excitations the cross section shows only a weak momentum-transfer dependence.

9 data tables
Table 1

Axis error includes +- 0.0/0.0 contribution (?////FROM UNCERTAINTY IN ELECTRON-DETECTION EFFICIENCY).

Table 2

Axis error includes +- 0.0/0.0 contribution (?////FROM UNCERTAINTY IN ELECTRON-DETECTION EFFICIENCY).

Table 3

Axis error includes +- 0.0/0.0 contribution (?////FROM UNCERTAINTY IN ELECTRON-DETECTION EFFICIENCY).

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Two-Charged-Particle Final States from pi-+p Interactions at 2.7 GeVc

Miller, D.H. ; Gutay, L. ; Johnson, P.B. ; et al.
Phys.Rev. 153 (1967) 1423-1442, 1967.
Inspire Record 52271 DOI 10.17182/hepdata.26636

A total of 24 360 events having two charged particles in the final state from π−+p interactions at an incident π− momentum of 2.7 GeVc have been analyzed. The final states π−π+n and π−π0p are found to be dominated by rho-meson production, and in addition, significant N*(1238) production is seen. The partial cross sections for the dominant resonant channels are σ=(pρ−)=(1.3±0.2) mb, σ(nρ0)=(2.3±0.2) mb, and σ[π−N*+(→pπ0)]=(0.5±0.2) mb. The production of the ρ− and ρ0 and the decay of the ρ− agree very well with the predictions of an absorption-modified one-pion-exchange model. The production angular distributions of the ρ0 and ρ− follow an exponential of the form Ae+Bt. The results from a least-squares fit give B(ρ−)=9.32±0.08 (GeVc)−2, B(ρ0)=10.26±0.06 (GeVc)−2. A similar analysis for the elastic-scattering events gave B(el)=7.77±0.05 (GeVc)−2. The ρ0 decay distributions are asymmetric and they have been analyzed using a simple model which includes S−P-wave interference. No clear evidence is seen for a T=0, J=0 resonance at a mass near that of the ρ. The N*(1238) resonance production is found to be in agreement with the ρ-exchange model of Stodolsky and Sakurai. Indication of other resonance production with small cross section is seen, such as A1 and A2 production in the multiple missing neutral events. The masses and widths of the ρ0 and ρ− as a function of the four-momentum transfer squared to the nucleon have been determined.

1 data table
Table 1

No description provided.


STUDY OF p p INTERACTIONS AT 28.5-BeV/c IN TWO AND FOUR PRONG FINAL STATES

Connolly, P.L. ; Ellis, W.E. ; Hough, Paul V.C. ; et al.
C671122-2, 1967.
Inspire Record 1100201 DOI 10.17182/hepdata.50281

None

1 data table
Table 1

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