Walker, J.K.
Cross Section
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High-Energy Nucleon-Nucleon total Cross Sections

Diddens, A.N. ; Lillethun, E. ; Manning, G. ; et al.
Phys.Rev.Lett. 9 (1962) 32-34, 1962.
Inspire Record 944903 DOI 10.17182/hepdata.46

None

3 data tables
Table 1

'1'. '2'. '3'.

Table 2

No description provided.

Table 3

No description provided.


High-Energy Proton-Proton Diffraction Scattering

Diddens, A.N. ; Lillethun, E. ; Manning, G. ; et al.
Phys.Rev.Lett. 9 (1962) 108-111, 1962.
Inspire Record 46802 DOI 10.17182/hepdata.21634

None

7 data tables
Table 1

This table from the from the Erratum.

Table 2

Table 1.

Table 3

Table 2.

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A study of S wave pi pi scattering in the reaction pi+ n ---> pi0 pi0 p at 2.15 gev/c

Bensinger, J.R. ; Erwin, A.R. ; Thompson, M.A. ; et al.
Phys.Lett.B 36 (1971) 134-138, 1971.
Inspire Record 69178 DOI 10.17182/hepdata.28409

We have studied the 2 π 0 final states in the reaction π + d → π 0 π 0 p(p) at 2.15 GeV/ c in a 2 million picture exposure of the PPA rapid cycling deuterium bubble chamber. Two tantalum plates were added to the bubble chamber to convert γ rays which were kinematically constrained to a 2 π 0 hypothesis. The 2 π 0 mass spectrum is observed to saturate s-wave unitarity in the ππ mass region between 0.6 and 0.9 GeV/ c 2 , clearly favoring the ‘up-down’ or broad resonance solution for s-wave, I = 0, ππ scattering.

1 data table
Table 1

No description provided.


Charged Particle Multiplicity Distribution from 200-GeV p p Interactions

Charlton, G. ; Cho, Y. ; Derrick, M. ; et al.
Phys.Rev.Lett. 29 (1972) 515, 1972.
Inspire Record 73783 DOI 10.17182/hepdata.21430

From 2728 events of 205-GeV pp interactions found in 15 000 pictures taken with the 30-in. hydrogen bubble chamber at the National Accelerator Laboratory, a total cross section of 39.5±1.1 mb was measured. The mean charged-particle multiplicity for inelastic pp collisions was measured to be 7.65±0.17. The prong distribution from 2 to 22 prongs is broader than a Poisson distribution and has a width parameter f2−=〈n−(n−−1)〉−〈n−〉2=0.95±0.21.

1 data table
Table 1

No description provided.


Updated Charged-Particle Multiplicity Distribution from 205-GeV/c Proton Proton Interactions

Barish, S. ; Cho, Y. ; Colley, D.C. ; et al.
Phys.Rev.D 9 (1974) 2689, 1974.
Inspire Record 609 DOI 10.17182/hepdata.21974

The charged-particle multiplicity distribution in 205−GeVc proton-proton interactions is presented. In addition, the total diffractive contributions to each charged multiplicity are estimated assuming a factorizable Pomeron.

1 data table
Table 1

THE TOTAL CROSS SECTION NORMALIZATION COMES FROM THIS AND OTHER EXPERIMENTS.


pi pi Scattering and pi+ d Interactions at 7-GeV/c

Carroll, J.T. ; Matthews, J.A.J. ; Walker, W.D. ; et al.
Phys.Rev.D 10 (1974) 1430, 1974.
Inspire Record 91650 DOI 10.17182/hepdata.25036

Using bubble-chamber data on the reactions π+d→pspπ0π0, π+d→pspπ+π−, and π−p→nπ+π− at 7 GeV/c incident π momentum, π−π phase shifts are determined for 0.6

6 data tables
Table 1

TWO-PRONG CROSS SECTIONS IN DEUTERIUM WITH SPECTATOR PROTON MOMENTUM CUT AT 0.3 GEV/C.

Table 2

NOTE THAT THE LOW-T DATA POINTS (<0.1 GEV**2) SHOULD BE CORRECTED FOR PAULI EXCLUSION IN DEUTERIUM.

Table 3

FROM FIT WITH BREIT-WIGNER RESONANCES PLUS PHASE SPACE.

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Charged-Particle Multiplicities in 100 GeV/c $\bar{p}p$ Interactions

Ansorge, R.E. ; Bust, C.P. ; Carter, J.R. ; et al.
Phys.Lett.B 59 (1975) 299-302, 1975.
Inspire Record 2603 DOI 10.17182/hepdata.27765

Results are presented on the topological cross sections obtained for antiproton-proton interactions from an exposure of the Fermilab 30-inch bubble chamber to a 100 GeV/ c negative beam enriched in p 's. The p p inelastic cross section is found to be σ inel = 34.6 ± 0.4 mb, and the average inelastic charged particle multiplicity to be 〈 n 〉 = 6.74 ± 0.05.

3 data tables
Table 1

ERRORS ARE STATISTICAL ONLY EXCEPT FOR 2-PRONG CROSS-SECTIONS.

Table 2

EXPONENTIAL FIT TO ELASTIC T DISTRIBUTION TO CORRECT FOR AN APPARENT LOSS OF EVENTS AT SMALL -T.

Table 3

MOMENTS OF 100 GEV/C AP P MULTIPLICITY DISTRIBUTION.


Rho0 Production in 205-GeV/c p p Interactions

Singer, R. ; Fields, T.H. ; Hyman, L.G. ; et al.
Phys.Lett.B 60 (1976) 385-388, 1976.
Inspire Record 2818 DOI 10.17182/hepdata.6484

Inclusive and semi-inclusive ρ 0 production are studied in 205 GeV/ c pp interactions. The number of ρ 0 per inelastic event is 0.33 ± 0.06, so that (13 ± 2)% of the π − are products of ϱ 0 decay. The ρ 0 are found to be produced mainly near y = 0 and tend to have larger average transverse momentum than do pions.

6 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Pion Charge Exchange Scattering at High-Energies

Barnes, A.V. ; Mellema, D.J. ; Tollestrup, A.V. ; et al.
Phys.Rev.Lett. 37 (1976) 76, 1976.
Inspire Record 108646 DOI 10.17182/hepdata.21046

We report on a study of pion charge-exchange scattering carried out at Fermilab in the energy range 20 to 200 GeV. The results can be described remarkably well by a simple Regge-pole model. The charge-exchange cross sections in the forward direction lead to a prediction for the difference in total cross sections of π−p and π+p which is in satisfactory agreement with direct measurements of this difference in another experiment at Fermilab.

3 data tables
Table 1

Axis error includes +- 0.0/0.0 contribution (?////).

Table 2

Axis error includes +- 0.0/0.0 contribution (?////).

Table 3

Axis error includes +- 0.0/0.0 contribution (?////).


The Reaction pi- p ---> eta n at High-Energies

Dahl, O.I. ; Johnson, R.A. ; Kenney, R.W. ; et al.
Phys.Rev.Lett. 37 (1976) 80, 1976.
Inspire Record 108647 DOI 10.17182/hepdata.21028

Measurements on the reaction π−p→ηn have been carried out at Fermilab with beam energies from 20 to 200 GeV in the same experiment in which pion charge-exchange scattering was studied. The differential cross sections have a pronounced dip in the forward direction. The data can be described well by a simple Regge-pole model but the resulting A2 trajectory is not degenerate with the ρ trajectory extracted from the charge-exchange data.

3 data tables
Table 1

Axis error includes +- 0.0/0.0 contribution (?////).

Table 2

Axis error includes +- 0.0/0.0 contribution (?////).

Table 3

Axis error includes +- 0.0/0.0 contribution (?////).