Alton, A.
Proton-Proton Scattering
DSIG/DT
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Cross sections for p p ---> d rho+ from 4.0 to 12.3 gev/c and a search for the delta+

Anderson, H.L. ; Dixit, M. ; Evans, H.J. ; et al.
Phys.Rev.Lett. 26 (1971) 108-112, 1971.
Inspire Record 69063 DOI 10.17182/hepdata.21629

Forward differential cross sections for isospin-1 bosons produced in p+p→d+x+ were measured using a deuteron missing-mass spectrometer at a small angle between 4.0- and 12.3−GeVc incident momentum. Differential cross sections for π+ and ρ+ were extracted from the spectra using phase-space backgrounds. They range from 10.4 to 0.4 μb/sr for π+ and from 1.4 to 0.3 μb/sr for ρ+. A bump near 6 GeVc appears in both dπ and dρ channels. No clear evidence is seen for higher-mass bosons. The possible δ+ cross sections average less than 0.01 μb/sr.

3 data tables
Table 1

TECHNIQUE USED...ELECTRONIC. TABLE 1.

Table 2

TECHNIQUE USED...MISSING MASS. BREIT WIGNER USED WITH FIXED WIDTH (150 MEV) AND VARIABLE MASS (LATTER VARIED WITH MOMENTA FROM 715 TO 765 MEV). 6 PERCENT NORMALIZATION ERROR; 20 PERCENT FROM BREIT WIGNER FIT. TABLE 1.

Table 3

TECHNIQUE USED...MISSING MASS. CROSS-SECTIONS CORRESPOND TO VERY NARROW DELTA (962).


Proton proton differential cross-sections from 600 to 1800 mev/c

Ryan, B.A. ; Kanofsky, A. ; Devlin, T.J. ; et al.
Phys.Rev.D 3 (1971) 1-9, 1971.
Inspire Record 68275 DOI 10.17182/hepdata.23725

Proton-proton elastic differential cross sections have been measured for incident laboratory momenta of 600-1800 MeVc and c.m. angles of 5°-90°. The data span, in a single experiment, the intermediate energy region from isotropic differential cross sections at lower energies to the development of a clear diffraction peak at higher energies. Parameters for phenomenological formulations derived from the experimental results are presented.

22 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Elastic scattering and single-pion production in proton proton interactions at 6.92 bev/c

Alexander, G. ; Carmel, Z. ; Eisenberg, Y. ; et al.
Phys.Rev. 173 (1968) 1322-1329, 1968.
Inspire Record 55956 DOI 10.17182/hepdata.5540

Elastic scattering and single-pion production in pp collisions at 6.92 BeVc were studied in the BNL 80-in. hydrogen bubble chamber. Partial cross sections for the different final states are given. The reaction pp→nN1238*(pπ+) with σ=1.9±0.3 mb is analyzed and is in agreement with the modified one-pion-exchange model. Single-pion production can be explained as due mainly to two channels: (a) pp→N1238*(pπ+)n, and (b) pp→p(nπ+) or pp→p(pπ0), where the (nπ+) and (pπ0) pairs are in an I=12 state.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

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The production of nucleon resonances in proton proton collisions at high energy and large momentum transfers

Allaby, J.V. ; Binon, F. ; Diddens, A.N. ; et al.
Phys.Lett.B 28 (1968) 229-232, 1968.
Inspire Record 56834 DOI 10.17182/hepdata.29196

Experimental results are presented on the excitation of the nucleon isobars N ∗ (1518) and N ∗ (1688) in proton-proton collisions at an incident momentum of 19.2 GeV/ c and in the range of four-momentum squared 0.6 ⩽7 z . sfnc ; t | ⩽ 5.8 GeV 2 .

3 data tables
Table 1

Axis error includes +- 0.0/0.0 contribution (?////Due to the method used in estimating the area under the peak).

Table 2

Axis error includes +- 0.0/0.0 contribution (?////Due to the method used in estimating the area under the peak).

Table 3

Axis error includes +- 0.0/0.0 contribution (?////Due to the method used in estimating the area under the peak).


Structure in the angular distribution of high energy proton-proton scattering

Allaby, J.V. ; Binon, F.G. ; Diddens, A.N. ; et al.
Phys.Lett.B 28 (1968) 67-71, 1968.
Inspire Record 54033 DOI 10.17182/hepdata.29155

Results are presented on measurements of elastic proton-proton scattering at 19.2 and 21.1 GeV/ c in the angular region where previously structure had been observed at lower energies.

1 data table
Table 1

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


Proton-Proton Interactions at 5.5 GeV/c

Alexander, G. ; Benary, O. ; Czapek, G. ; et al.
Phys.Rev. 154 (1967) 1284-1304, 1967.
Inspire Record 52243 DOI 10.17182/hepdata.55119

This report is based on about 10 500 pp collision events produced in the 81-cm Saclay hydrogen bubble chamber at CERN. Cross-section values for the different identified final states and resonances are given. The isobars N*1238, N*1420, N*1518, N*1688, N*1920, and N*2360 were identified and their production cross-section values were found via a best-fit analysis of different invariant-mass histograms. About 70% of the isobars are connected with the quasi-two-body reactions pp→N*N and pp→N*N*. The reaction pp→nN*1238(pπ+) with a cross section of 3.25±0.16 mb was analyzed in terms of a peripheral absorption model, which was found to be in good agreement with the data. Various decay modes of the N*1518 and N*1688 isobars were observed and their branching ratios determined. The branching ratio of nπ+ to pπ+π− was found to be 0.77±0.45 for N*1518 and 0.67±0.40 for N*1688. The branching ratio of N*1238(pπ+)π− to pπ+π− of N*1688 was estimated to be 0.74±0.14. Pion production turned out to be mainly due to decay of isobars. Production of meson resonances turned out to be less important; the reaction pp→ppω0→ppπ+π−π0 was identified with a cross-section value of 0.11±0.02 mb. Finally, the production of neutral strange particles with a cross section of 0.45±0.04 mb is descussed. Strong formation of Y*1385 is observed.

6 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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