Lubelsmeyer, K
hep-ex
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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

Differential cross-sections for the reactions $p + p \to D + \pi^+$ and $p + p \to D + \rho^+$ at 21-GeV/c

Allaby, J.V. ; Binon, F.G. ; Diddens, A.N. ; et al.
Phys.Lett.B 29 (1969) 198-202, 1969.
Inspire Record 56770 DOI 10.17182/hepdata.28992

Results are presented from an experiment in which high-energy deuterons, produced by proton-proton interactions at 21.1 GeV/ c incident momentum, were detected over a range of angles from 12.5 mrad to 60 mrad in the laboratory system. From the momentum spectra of the deuterons, the final states D + π + and D + ϱ + have been identified. The angular distribution for these reactions are presented and compared with previous data at lower energies.

5 data tables
Table 1

The statistical errors are presented.

Table 2

The statistical errors are presented.

Table 3

The statistical errors are presented. The data are from previous publications.

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Photoproduction of negative pions on neutrons at photon energies between 0.2-GeV and 2.0-GeV

The Aachen-Berlin-Bonn-Hamburg-Heidelberg-Muenchen collaboration Hilpert, H.G. ; Lauscher, P. ; Matziolis, M. ; et al.
Nucl.Phys.B 8 (1968) 535-544, 1968.
Inspire Record 56298 DOI 10.17182/hepdata.32389

Total and differenial cross sections of the reaction γ +n→p+ π − have been determined for photon-energies between 0.2 and 2.0 GGeV. Below 500 MeV the differential cross sections are compared with theoretical predictions derived from fixed-momentum-transfer dispersion relations.

30 data tables
Table 1

Axis error includes +- 0.0/0.0 contribution (5 TO 8////).

Table 2

Axis error includes +- 0.0/0.0 contribution (5 TO 8////).

Table 3

Axis error includes +- 0.0/0.0 contribution (5 TO 8////).

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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).


Kp and pi-p backward elastic scattering at 5.2 and 6.9 gev/c

Baker, W.F. ; Berkelman, Karl ; Carlson, P.J. ; et al.
Phys.Lett.B 28 (1968) 291-295, 1968.
Inspire Record 56828 DOI 10.17182/hepdata.29075

The angular distributions of K + p and π + p backward elastic scattering have been measured at 5.2 and 6.9 GeV/ c . Backward π - p and K - p elastic scattering were studied at 6.9 GeV/ c . Backward peaks are observed in K + p scattering with an energy dependence of the form s −4 .

1 data table
Table 1

No description provided.


Total neutron-nuclei cross-sections at 10 {GeV/c}

Engler, J. ; Horn, K. ; Konig, J. ; et al.
Phys.Lett.B 28 (1968) 64-66, 1968.
Inspire Record 928257 DOI 10.17182/hepdata.29173

Total neutron cross-sections were determined for He, Li, Be, C, Al, Fe, Cu and Pb at an average neutron momentum of 10 GeV/ c . The results agree very well with total proton-neuclei cross-sections at 20 GeV/ c . The interaction radii inferred from the cross-sections are in remarkable agreement with the half-density radii as obtained from electron scattering.

1 data table
Table 1

No description provided.


On $K_L$ - $K_S$ Regeneration in Copper

Bohm, A. ; Darriulat, P. ; Grosso, C. ; et al.
Phys.Lett.B 27 (1968) 594-598, 1968.
Inspire Record 1374884 DOI 10.17182/hepdata.69210

The transmission regeneration amplitude after a thick copper block has been measured. The quantity {∣ƒ(0)- overlineƒ(0)∣ }/{k} varies from 20.0 $\pm$ 1.4 mb at 2.75 GeV/c to 13.6 $\pm$ 1.2 mb at 7.25 GeV/c. Results are in agreement with optical model calculations in which real and imaginary parts of the amplitudes for single nucleon scattering are determined from forward dispersion relations and total cross-sections.

1 data table
Table 1

Regeneration amplitude.


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'.