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A STUDY OF THE K pi SYSTEM IN THE REACTION K- p ---> anti-K0 pi- p AT 8.25-GeV/c

The Birmingham-CERN-Glasgow-Michigan State-Paris collaboration Baubillier, M. ; Bloodworth, I.J. ; Burns, A.J. ; et al.

Z.Phys.C 26 (1984) 37, 1984.

Inspire Record 202455 DOI 10.17182/hepdata.47964

The production ofK* resonances has been studied in the reaction$K^ -p \to \bar K^0 \pi ^ -p$ at 8.25 GeV/c. The data comes from a high statistics bubble chamber experiment (180 events/μb). Masses, widths and production cross-sections have been determined for the first threeK*'s. The contributions from natural and unnatural parity exchange have been obtained for theK*(890) and theK*(1420). A partial wave analysis of theK π system from threshold to 1.9 GeV provides evidence for a 0+ enhancement near 1.4 GeV which could be interpreted as the κ(1350).

6 data tables

Table 1

No description provided.

Table 2

FULLY CORRECTED.

Table 3

No description provided.

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The Reactions $K^- p \to \pi^\mp \Sigma^\pm$ (1385) at 8.25-{GeV}/$c$

The Birmingham-CERN-Glasgow-Michigan State-Paris collaboration Baubillier, M. ; Bloodworth, I.J. ; Burns, A. ; et al.

Z.Phys.C 23 (1984) 213, 1984.

Inspire Record 199642 DOI 10.17182/hepdata.16327

The reactionsK−p→π∓Σ(1385)± are studied at an incident laboratory momentum of 8.25 GeV/c using data from a high statistics (≃180 events/μb) bubble chamber experiment. In the case of the reactionK−p→π−Σ(1385)+ an amplitude analysis is performed and the complete Σ(1385)+ spin density matrix is extracted as a function oft′. The results are compared with the predictions of the additive quark model. In the case of the reactionK−p→π+Σ(1385)− the cross-sections for forward and backward production are determined.

7 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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PRODUCTION OF F-prime (1520) IN 8.25-GEV/C K- P INTERACTIONS

The BIRMINGHAM-CERN-GLASGOW-MICHIGAN STATE-PARIS collaboration Al- Harran, S. ; Baubillier, M. ; Bloodworth, I.J. ; et al.

Nucl.Phys.B 191 (1981) 26-38, 1981.

Inspire Record 172450 DOI 10.17182/hepdata.34233

We present results for the hypercharge exchange reaction K − p→f' λ from a high statistics experiment at 8.25 GeV/ c using the CERN 2m HBC. The total and differential cross sections have been measured; the polarisation of the Λ hyperon and the f' density matrix elements have been calculated as functions of momentum transfer. We also present detailed information on the relative strength of the natural and unnatural parity exchange contributions to the production mechanism.

5 data tables

Table 1

D-WAVE RELATIVISTIC BREIT-WIGNER RESONANCE PLUS POLYNOMIAL BACKGROUND FIT.

Table 2

FITTED FOR INDIVIDUAL TP BINS.

Table 3

No description provided.

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Study of the Reactions pi+ p --> Delta++ pi0 and pi+ p --> Delta++ eta at 5.45-GeV/c

Bloodworth, I.J. ; Jackson, W.C. ; Merdjanian, H. ; et al.

Nucl.Phys.B 81 (1974) 231-248, 1974.

Inspire Record 1399 DOI 10.17182/hepdata.32198

Results are presented on the quasi-two body reactions π + p → Δ ++ π 0 and π + p → Δ s ++ η and 5.45 GeV/ c . Differential cross sections and Δ ++ spin density matrix elements in the t -channel and s -channel helicity systems are presented and compared with a Regge exchange model and the dual absorptive model.

8 data tables

Table 1

LINEAR BACKGROUND ASSUMED.

Table 2

VALUE OBTAINED FROM 4-PRONG EVENTS USED, I. J. BLOODWORTH ET AL., NP B39, 525 (1972).

Table 3

NORMALIZED TO QUOTED TOTAL CROSS SECTION. NO BACKGROUND SUBTRACTION.

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$\Delta^{++} \rho^0$ and $\Delta^{++} \omega^0$ final states at 5.45 GeV/ c

Bloodworth, I.J. ; Jackson, W.C. ; Prentice, J.D. ; et al.

Nucl.Phys.B 35 (1971) 79-92, 1971.

Inspire Record 68461 DOI 10.17182/hepdata.33069

Results are reported on the Δ ++ ϱ 0 and the Δ ++ ω 0 final states obtained from a 4 event/μb exposure of the Argonne National Laboratory 30 inch hydrogen bubble chamber to a π + beam at 5.45 GeV/ c . Data are presented on cross sections, differential cross sections, spin density matrix elements and differential cross-sections weighted by density matrix elements. Certain features of the data relevant to various Regge models are noted and the data is compared to a π -B exchange degenerate Regge model due to Abrams and Maor.

17 data tables

Table 1

No description provided.

Table 2

FROM RESONANCES PLUS BACKGROUND FITS, CORRECTED FOR RESONANCE TAILS AND UNSEEN OMEGA DECAYS.

Table 3

No description provided.

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A2+ production in 5.45 gev/c pi+ p interactions

Bloodworth, I.J. ; Jackson, W.C. ; Prentice, J.D. ; et al.

Nucl.Phys.B 37 (1972) 203-211, 1972.

Inspire Record 75334 DOI 10.17182/hepdata.32963

We report on A + 2 production in a π + p experiment at 5.45 GeV/ c . The fitted values for the mass and width are given, and the production characteristics are illustrated by the momentum transfer distributions and average density matrix elements. A depletion of events is observed near 1.3 GeV which favours a double pole amplitude or two interfering resonances over a simple Breit-Wigner formula.

3 data tables

Table 1

No description provided.

Table 2

PLOT V. T IN FIG. 2(A) NOT COMPILED.

Table 3

D.M.E'S DETERMINED BY ASSUMING RHO22=0,RHO00=1-2RHO11.