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Measurement of the polarization parameter in pi+- p, k+- p, p p, and anti-p p elastic scattering at 6 gev/c

Borghini, M. ; Dick, L. ; Di Lella, L. ; et al.
Phys.Lett.B 31 (1970) 405-409, 1970.
Inspire Record 63191 DOI 10.17182/hepdata.6078

Experimental results are presented for the polarization parameter P 0 in π ± p , K ± p , pp, and p ̄ p elastic scattering at 6 GeV/ c , and in the range of the invariant four-momentum transfer squared − t from 0.05 to ∼ 2.0 (GeV/ c ) 2 .

2 data tables
Table 1

'1'. '2'. '3'. '4'.

Table 2

No description provided.


P-P Interactions at 10 GEV/C

Almeida, S.P. ; Rushbrooke, John G. ; Scharenguivel, J.H. ; et al.
Phys.Rev. 174 (1968) 1638-1661, 1968.
Inspire Record 55886 DOI 10.17182/hepdata.5529

About 3700 two-prong and 5600 four-prong events of 10-GeV/c pp interactions in the Saclay 81-cm hydrogen bubble chamber have been measured and analyzed. The reliability of the identification of the different final states has been checked using Monte Carlo-generated events. For the channels accessible to analysis, cross sections and invariant-mass distributions are given. The c.m. angular distributions and the mean values of the transverse momentum for all final-state particles are shown and discussed. Production of Δ++(1236) accounts for about 30% of the cross section σ(pp→pnπ+)=4.1±0.4 mb. About 50% of the cross section σ(pp→ppπ+π−)=2.4±0.2 mb can be accounted for by Δ++ production. Production of nucleon isobars at 1450, 1520, and 1730 MeV and their subsequent decay into pπ+π− are investigated. Their cross sections, t dependences, and branching ratios are determined, using a one-pion-exchange model (OPEM) for calculating the background distributions. The production of resonances decaying into pπ− at 1236, 1500, and 1690 MeV is seen, and cross sections are given. Resonance production in the ppπ+π−π0 and pnπ+π+π− reactions is studied using background curves calculated with a model based on simple parametrizations of the c.m. momentum distributions. The production of nucleon isobars accounts for nearly 100% of these reactions. For the reactions pp→ppω, ppη, and ppf0, the cross sections found are 0.16±0.03, 0.16±0.07, and 0.10±0.04 mb, respectively, corrected for unobserved decay modes. It is shown that most of the gross features of the pion-production reactions can be explained by the OPEM with the form factors of Ferrari and Selleri.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Evidence for dominance of pomeron like exchange in p + p ---> n + n + pi at 19 gev/c

Boggild, H. ; Hansen, K. ; Johnstad, H. ; et al.
Phys.Lett.B 30 (1969) 369-372, 1969.
Inspire Record 56657 DOI 10.17182/hepdata.28910

The reactions pp → NN π are studied at 19 GeV/ c and analysed in terms of the amplitudes with the low mass N π system in isospin states 1 2 and 3 2 respectively. The I − 1 2 cross section is compared with the corresponding one in π p→ ππ N at 8 GeV/ c .

1 data table

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 Elastic Scattering at 90-degrees and Structure Within the Proton

Akerlof, C.W. ; Hieber, R.H. ; Krisch, A.D. ; et al.
Phys.Rev.Lett. 17 (1966) 1105-1109, 1966.
Inspire Record 945161 DOI 10.17182/hepdata.26580

None

1 data table
Table 1

No description provided.