Eggert, K.
Proton-Proton Total Cross Section
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Measurement of Small Angle anti-Proton - Proton and Proton Proton Elastic Scattering at the CERN Intersecting Storage Rings

Amos, Norman A. ; Block, M.M. ; Bobbink, G.J. ; et al.
Nucl.Phys.B 262 (1985) 689-714, 1985.
Inspire Record 214689 DOI 10.17182/hepdata.33711

Antiproton-proton and proton-proton small-angle elastic scattering was measured for centre-of-mass energies s =30.6, 52.8 and 62.3 GeV at the CERN Intersectung Storage Rings. In addition, proton-proton elastic scattering was measured at s =23.5 GeV . Using the optical theorem, total cross sections are obtained with an accuracy of about 0.5% for proton-proton scattering and about 1% for antiproton-proton scattering. The measurement of the interference of the Coulomb scattering and the hadronic scattering permits a determination of the ratio of the real-to-imaginary part of the forward hadronic scattering amplitude. Also presented are measurements of the hadronic slope parameter.

13 data tables
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Measurement of $\bar{p}p$ Elastic Scattering at $\sqrt{s}=52.8$-{GeV} at the {CERN} Intersecting Storage Rings

Favart, D. ; Lipnik, P. ; Macq, P. ; et al.
Phys.Rev.Lett. 47 (1981) 1191, 1981.
Inspire Record 167714 DOI 10.17182/hepdata.3302

The small-angle elastic scattering for pp at s=23.5, 30.7, and 52.8 GeV and for p¯p at s=52.8 GeV are measured. The data are normalized on Coulomb scattering. Using the optical theorem and the best estimate of the real part of the forward scattering amplitude, ρ(pp¯)=0.1, we obtain σtot(p¯p)=44.1±2.9 mb for the total cross section and b(p¯p)=13.6±2.2 GeV−2 for the nuclear slope parameter. This supports the dispersion relation prediction that σtot(p¯p) will start to rise above Elab≈200 GeV.

6 data tables
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Correlations Between Neutral and Charged Pions Produced in 300-{GeV}/$c p p$ Collisions

Kafka, T. ; LoPinto, F. ; Brody, A. ; et al.
Phys.Rev.D 19 (1979) 76, 1979.
Inspire Record 6901 DOI 10.17182/hepdata.24255

Neutral-pion production in pp interactions has been studied using 8000 photon conversions in the Fermilab 15-ft bubble chamber. Inclusive π0 multiplicity moments and ππ correlation integrals are presented; f200 is determined to be + 3.0±0.8. For the semi-inclusive π0 multiplicity distributions we find 〈n(π0)〉n− to increase with n−, while the dispersions are n− independent. Results on f2−0, f200, and f2,n−00 are compared to predictions of simple cluster models.

3 data tables
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A Measurement of the Proton Proton Cross-Section at the CERN ISR

Eggert, K. ; Frenzel, H. ; Giboni, K.L. ; et al.
Nucl.Phys.B 98 (1975) 93-99, 1975.
Inspire Record 99601 DOI 10.17182/hepdata.31897

We present a measurement of the total cross section σ t in proton-proton collisions at the CERN ISR. The method involves determination of the total interaction rate and machine luminosity. A two-arm scintillation hodoscope observes ∼ 90% of the total interaction rate, while a streamer chamber is employed for event topologies missed by the main trigger. An increase of about 10% in σ t is observed in the energy range √ s = 23.6 to √ s = 62.8 GeV/ c in agreement with previous experiments.

1 data table
Table 1

VAN DER MEER METHOD.