HEPData Search

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K-minus-p interactions from 594 to 820 mev/c

Bertanza, L. ; Bigi, A. ; Carrara, R. ; et al.

Phys.Rev. 177 (1969) 2036-2047, 1969.

Inspire Record 55654 DOI 10.17182/hepdata.70773

K−−p interactions in the Columbia-BNL 30-in. hydrogen bubble chamber were studied at nine momenta from 594 to 820 MeVc. The results for elastic-scattering and zero-prong-plus-V0 events are presented here. Differential cross sections are given for the K−p, K¯0n, and Λπ0 final states. A fit to the K¯N channels was obtained which shows the effects of a 32− resonance at 1701 MeV. This energy is appreciably displaced from the peak in the inelastic cross section.

5 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Measurement of proton Compton scattering at 6 gev and small momentum transfers

Buschhorn, G. ; Criegee, L. ; Dubal, L. ; et al.

Phys.Lett.B 33 (1970) 241-244, 1970.

Inspire Record 63064 DOI 10.17182/hepdata.28544

Compton scattering on protons has been measured at a mean photon energy of 6 GeV and four-momentum transfers − t between 0.06 and 0.60 (GeV/ c ) 2 . The differential cross section shows a diffraction-like behaviour. The cross section extrapolated to t =0 is in fair agreement with the optical point. Discrepancies with the vector meson dominance model are pointed out.

1 data table

Table 1

No description provided.

Study of k- pi- scattering using the reaction k- d ---> k- pi- p p(s)

Cho, Y. ; Derrick, M. ; Johnson, D. ; et al.

Phys.Lett.B 32 (1970) 409-412, 1970.

Inspire Record 63111 DOI 10.17182/hepdata.28719

Approximately 700 events of the reaction K − d → K − π − pp s produced by 5.5 GeV/ c kaons were used to measure the cross section for Kπ elastic scattering in the T = 3 2 state by a Chew-Low extrapolation. The cross section does not exceed 2.1 mb and has no structure for Kπ masses from threshold up to 2.0 GeV.

1 data table

Table 1

Chew-Low extrapolation is used for evaluation of the K- P elastic cross section.

Production of the k- pi+ pi- n final state in k- d interactions at 5.5 gev/c

Davis, R. ; Ammar, R. ; Kropac, W. ; et al.

Nucl.Phys.B 44 (1972) 45-82, 1972.

Inspire Record 75079 DOI 10.17182/hepdata.32866

The reaction K − d → K − π + π − n p s was studied in a bubble chamber experiment. The cross section was measured to be 1.3 ± 0.2 mb. The final state is dominated by K ∗0 (890) , K ∗0 (1420) and Δ − (1236) production. Partial cross sections, differential cross sections and decay angular distributions of the K ∗0 (890) δ − (1236) final state were found to give good agreement with the predictions of Białas and Zalewski obtained from the quark model. The final state K − π + Δ − (1236) is analyzed by use of the Van Hove plot.

9 data tables

Table 1

DEUTERIUM CROSS SECTIONS WITH SPECTATOR PROTON. PROBABLY NOT CORRECTED FOR K* BRANCHING RATIO INTO <K- PI+>.

Table 2

SLOPE IS 5.75 +- 0.46 GEV**2 FOR -TP < 0.4 GEV**2.

Table 3

GOTTFRIED-JACKSON FRAME.

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K- d interactions at 5.5 gev/c - sigma-+ pi+- pi-(pi0), sigma- k+, k- and k- pi- p final states in which a hyperon is produced

Kropac, W. ; Ammar, R. ; Davis, R. ; et al.

Phys.Rev.D 7 (1973) 585-599, 1973.

Inspire Record 82572 DOI 10.17182/hepdata.22114

The results presented in this paper are obtained from an analysis of bubble-chamber pictures of K−d interactions at an incident K− momentum of 5.5 GeV/c. Generally, the quasitwo-body final states are produced peripherally, with a small backward peak occurring in some of the final states. The final states Σ−ω, Σ−ρ0, and Σ−φ appear to be produced primarily by vector-meson exchange. In the final state Λ(1520)π− the decay distributions of the Λ(1520) hyperon are found to be consistent with a vector-exchagne production process with M2 coupling at the nucleon vertex. The predictions of the independent-quark model and of other symmetry schemes, namely that the forward cross sections for Σ−ρ0, Σ−ω, Σ−φ production be in the ratios 1: 1: 2, are not inconsistent with our experimental values.

5 data tables

Table 1

No description provided.

Table 2

FRACTIONAL FORWARD HYPERON CROSS SECTION AFTER BACKGROUND SUBTRACTION.

Table 3

No description provided.