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

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

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

GOTTFRIED-JACKSON FRAME.

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THE REACTION K- n ---> K- pi+ pi- n AT 12-GeV/c

Lucas, P. ; Bachman, L. ; Chien, C.-Y. ; et al.
Nucl.Phys.B 133 (1978) 365-396, 1978.
Inspire Record 6743 DOI 10.17182/hepdata.35142

The reaction K − n → K − π + π − n has been studied in the SLAC 82″ liquid deuterium bubble chamber with a beam momentum of 12 GeV/ c . Although the kinematic fit for this final state has only one constraint, nonetheless a reasonably pure sample has been obtained. The cross section for the reaction is 1.02 ± 0.10 mb. The process K − n → K ∗0 890 Δ − is observed with cross section 36 ± 9 μ b and t -slope of 10 ± 2 (GeV/ c ) −2 . A kaon diffraction dissociation sample has been obtained, although the Q-signal is not so strong as in experiments with proton targets. Neutron dissociation into n π + π − is also observed with similar properties to those of proton dissociation into p π + π − , but with a broader t -distribution.

4 data tables

No description provided.

SLOPE FROM FIT TO DN/DT FOR -TP < 0.3 GEV**2.

No description provided.

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