K- P --> K*(892)- P
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Elastic scattering and single-pion production in k- p interactions at 5.5 gev/c

Engelmann, R. ; Musgrave, B. ; Schweingruber, F. ; et al.
Phys.Rev.D 5 (1972) 2162-2187, 1972.
Inspire Record 74221 DOI 10.17182/hepdata.22545

We present results of an analysis of two-prong events for elastic scattering and single-pion production in K−p interactions at 5.5 GeVc. The resonance parameters for the charged and neutral K*(890) and K*(1420) are determined and the observed production and decay properties of the charged and neutral K*(890) are compared with the theoretical predictions of an absorptive one-particle-exchange model and a Regge model. The K*(1420) differential cross section and density-matrix elements are presented and the question of whether more than one resonance exists in this mass range is considered. A search for resonance effects at Kπ mass beyond 1500 MeV is made. In particular, the recently reported state at 1800 MeV is discussed. A B5-model analysis of the reaction K−p→K¯0π−p is also presented.

13 data tables
Table 1

NORMALIZED TO SIG(K- P --> ANYTHING) OF 24.3 +- 0.8 MB.

Table 2

FORWARD CROSS SECTION OPTICAL POINT FROM TWO PARAMETER EXPONENTIAL FIT OVER 0.12 < -T < 0.68 GEV**2.

Table 3

No description provided.

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Charged K* (890) Production at 13-GeV/c

Estabrooks, P. ; Carnegie, R.K. ; Brandenburg, G.W. ; et al.
Phys.Rev.D 17 (1978) 658, 1978.
Inspire Record 120824 DOI 10.17182/hepdata.24375

We present high-statistics data on differential cross sections and density matrix elements for K*±(890) production obtained in a 13-Gev/c SLAC experiment. The most remarkable features of the data are the dominance of natural-parity exchange and significant differences between K*+ and K*− production by natural-parity isoscalar exchange. We present two exchange models which successfully describe this difference, as well as the overall t dependence: model A including Pomeron plus strongly exchange-degenerate Regge poles and model B involving broken exchange degeneracy for the f and ω exchanges. These two phenomenological models lead to different predictions for the energy dependence of K*± production, for the relative K*(1420)K*(890) production rate, and for the SU(3)-related ρ± production processes.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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The Low Mass K pi System in K- p --> anti-K pi n Reactions at 14.3-GeV/c

Spiro, M. ; Barloutaud, R. ; Borg, A. ; et al.
Nucl.Phys.B 125 (1977) 162-188, 1977.
Inspire Record 5199 DOI 10.17182/hepdata.35407

We present experimental results and a partial-wave analysis of the low-mass ( K π) 0 systems produced in the reactions K − p → K π N at 14.3 GeV/ c . The main results concern the production mechanisms of the K ∗ (890) and K ∗ (1420) . We also extract the s-wave component of the K π system as a function of mass.

5 data tables
Table 1

THE ERRORS QUOTED (EXCEPT FOR THE FIRST REACTION) ARE MAINLY AN ESTIMATE OF THE SYSTEMATIC UNCERTAINTIES.

Table 2

No description provided.

Table 3

No description provided.

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