PBAR P --> K2*(1430)0 K- PI+
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STUDY OF THE REACTION ANTI-P P ---> K+ K- PI+ PI- AT 8.3-GeV/c

Barnett, B. ; Burka, M. ; Chien, C.Y. ; et al.
Phys.Rev.D 30 (1984) 1871-1875, 1984.
Inspire Record 209439 DOI 10.17182/hepdata.23646

Results are presented from a study of the annihilation interaction p―p→K+K−π+π− at 8.3 GeV/c based on data from an experiment performed with the large-aperture solenoid spectrometer (LASS) at the Stanford Linear Accelerator Center. A measurement of the reaction cross section is made, and contributions to the final state from the φ, f0A20, K*(890), K*(1430), and ρ0 resonances are studied.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


anti-Proton-Proton Annihilations Between 1.5-GeV/c and 2.0-GeV/c: Final States with at Least One K0(L) Meson

Vuillemin, V. ; Gailloud, M. ; Rosselet, P. ; et al.
Nuovo Cim.A 33 (1976) 133, 1976.
Inspire Record 3307 DOI 10.17182/hepdata.37675

Antiproton-proton annihilations into final states containing one or two K10-mesons are studied on the basis of 450 000 pictures from the CERN 2 m HBC. The experiment covers the domain of antiproton incident momentum from 1.50 to 2.04 GeV/c. The resonance production rates are computed for the most abundant channels. The K10K10 threshold effect is explained through the inelastic channel π+π− → K10K10. The decay modes D, E → δ±(975)π∓, δ±(975) → K10K± are pointed out. The strange mesons C and C′ are observed in these annihilations and come mainly from the two-body channels \(p\bar p\) → (C, C′)K and\(p\bar p\) → (C, C′)K*.

9 data tables
Table 1

RESONANCE FRACTIONS FOR AP P --> KS (K+ PI- + K- PI+).

Table 2

RESONANCE FRACTIONS FOR AP P --> KS (K+ PI- + K- PI+) PI0.

Table 3

RESONANCE FRACTIONS FOR AP P --> KS KS PI+ PI-.

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Properties of the Reaction anti-p p --> K+ K- pi+ pi- at 2.32-GeV/c

Chen, C.K. ; Fields, T. ; Rhines, D. ; et al.
Nucl.Phys.B 130 (1977) 269-294, 1977.
Inspire Record 5388 DOI 10.17182/hepdata.35223

An analysis of a data sample of 1296 events of the reaction p p → K + K − π + π − at 2.32 GeV/ c is presented. The reaction cross section is 300 ± 20 μb . A number of tests of C conservation were made with careful attention to possible systematic errors, yielding no clear evidence of C violation. Various quasi two-body and quasi three-body final states contributing to this reaction were studied. The final state φπ + π − appears to be produced via a Zweig's rule violating mechanism. An analysis of the quasi three-body final state, K ∗0 K − π + (with K ∗0 → K + π − ) plus charge conjugate, whose cross section is 84 ± 12 μ b, is given. The properties of this final state are compared with expectations based on a simple baryon exchange model, and poor agreement is found. A quark model allows a successful qualitative interpretation of the properties of this three-body final state.

1 data table
Table 1

INCOHERENT BREIT-WIGNER PLUS PHASE SPACE FIT TO RESONANCE MASS SPECTRA. THE EQUAL CROSS SECTIONS FOR CHARGE CONJUGATE FINAL STATES ARE NOT TABULATED.