Date

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Test of quark model predictions in the reactions $\pi^+ p \to \omega \Delta^{++}$ and $\rho^0\Delta^{++}$ at 5 GeV/c

Lyons, L. ; Karshon, U. ; Eisenberg, Y. ; et al.
Nucl.Phys. B85 (1975) 165-178, 1975.
Inspire Record 1392677 DOI 10.17182/hepdata.32120

The well-known class-A quark-model relations of Białas and Zalewski are parametrised in a particular form, where one can compare the data with the predictions separately for the meson non-flip and flip parts, defined in the transversity frame. A 3-parameter fit to the joint decay angular distribution is performed on the experimental data, and the results are compared with the quark-model predictions for various regions of the four-momentum transfer. The effect of an s -wave state under the ρ 0 is discussed.

1 data table

A THREE PARAMETER FIT IS MADE TO THE JOINT DECAY DISTRIBUTION.


Study of four-prong events in pi+ p interactions at 3.5 gev/c

Ronat, E.E. ; Eisenberg, Y. ; Lyons, L. ; et al.
Nucl.Phys. B38 (1972) 20-36, 1972.
Inspire Record 75333 DOI 10.17182/hepdata.32958
7 data tables

FOUR-PRONG, NON-STRANGE CROSS SECTIONS. SYSTEMATIC ERROR INCLUDED.

BREIT-WIGNER RESONANCE FITS, ALLOWING FOR PHASE SPACE AND RELEVANT REFLECTIONS, TO <P PI+ PI+ PI-> FINAL STATE.

BREIT-WIGNER RESONANCE FITS, ALLOWING FOR PHASE SPACE AND RELEVANT REFLECTIONS, TO <P PI+ PI+ PI- PI0> FINAL STATE.

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Rho-omega interference and exchange degeneracy in pi+ p interactions at 5.45 gev/c

Bloodworth, I.J. ; Jackson, W.C. ; Prentice, J.D. ; et al.
Nucl.Phys. B35 (1971) 133-140, 1971.
Inspire Record 68460 DOI 10.17182/hepdata.33035
1 data table

No description provided.


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

Bloodworth, I.J. ; Jackson, W.C. ; Prentice, J.D. ; et al.
Nucl.Phys. B35 (1971) 79-92, 1971.
Inspire Record 68461 DOI 10.17182/hepdata.33069
17 data tables

No description provided.

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

No description provided.

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Study of pi+ p four prong interactions from 2.95-GeV/c to 4.08-GeV/c

Brown, David ; Gidal, George ; Birge, Robert W. ; et al.
Phys.Rev. D1 (1970) 3053, 1970.
Inspire Record 74876 DOI 10.17182/hepdata.25065
30 data tables

No description provided.

No description provided.

No description provided.

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The reaction pi+ p ---> omega delta++(1236) at 11.7 gev/c

Evans, D. ; Maddock, R.O. ; Pinter, G.F. ; et al.
Nucl.Phys. B51 (1973) 205-220, 1973.
Inspire Record 84297 DOI 10.17182/hepdata.32709
9 data tables

CORRECTED FOR BACKGROUND, RESONANCE TAILS AND UNSEEN OMEGA DECAY MODES.

NORMALIZED TO THE TOTAL CROSS SECTION. SOME BACKGROUND IS PRESENT.

NORMALIZED TO THE TOTAL CROSS SECTION. SOME BACKGROUND IS PRESENT.

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STUDY OF REACTIONS pi+ p ---> (rho0, omega) DELTA++ (1236) AT 10.3-GeV/c

Beaufays, J. ; Kennedy, C.N. ; Key, A.W. ; et al.
Phys.Rev. D18 (1978) 27, 1978.
Inspire Record 6322 DOI 10.17182/hepdata.24331
9 data tables

P-WAVE BREIT-WIGNER RESONANCES PLUS BACKGROUND USED WITH SLICE TECHNIQUE.

FROM RESONANCE OVERLAP REGION WITH BACKGROUND SUBTRACTED AND NORMALIZED TO TOTAL CROSS SECTION.

FROM RESONANCE OVERLAP REGION WITH BACKGROUND SUBTRACTED AND NORMALIZED TO TOTAL CROSS SECTION.

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Partial, Total, and Resonance Production Cross-Sections for the Reactions pi+ p --> Four Prong Final States at 10.3-GeV/c

Kennedy, C.N. ; Zemany, P.D. ; Beaufays, J. ; et al.
Phys.Rev. D17 (1978) 2888-2900, 1978.
Inspire Record 135353 DOI 10.17182/hepdata.24403
2 data tables

PARTIAL CROSS SECTIONS FROM PI+ P --> PI+ P PI+ PI-.

PARTIAL CROSS SECTIONS FROM PI+ P --> PI+ P PI+ PI- PI0.


A Study of the Reactions pi+ p --> (rho0, omega) Delta++ at 13-GeV/c

Gaidos, J.A. ; Hirata, A.A. ; DeBonte, R.J. ; et al.
Nucl.Phys. B72 (1974) 253-282, 1974.
Inspire Record 763 DOI 10.17182/hepdata.32316
10 data tables

BREIT-WIGNER FITS WHICH CORRECT FOR RESONANCE TAILS AND BACKGROUNDS.

No description provided.

JACKSON FRAME DENSITY MATRIX ELEMENTS.

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Rho0 delta++ and omega delta++ joint decay correlations at 3.7 gev/c

Barnham, K.W.J. ; Abrams, G.S. ; Butler, W.R. ; et al.
Phys.Rev. D7 (1973) 1384-1394, 1973.
Inspire Record 82336 DOI 10.17182/hepdata.22157
4 data tables

T-CHANNEL COORDINATE SYSTEM (XYZ=TH).

T-CHANNEL COORDINATE SYSTEM (XYZ=TH).

S-CHANNEL COORDINATE SYSTEM (XYZ=SH).

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Interactions of 4.09-gev/c positive pions with protons - pi+ p ---> four charged particles plus neutrals

Fong, D.G. ; Massimo, J.T. ; Pitluck, S. ; et al.
Phys.Rev. D9 (1974) 3015-3028, 1974.
Inspire Record 94287 DOI 10.17182/hepdata.21980
4 data tables

INCLUDING CORRECTIONS FOR BACKGROUND.

No description provided.

No description provided.

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Amplitude Analyses of the Reactions pi+ p --> (rho0, omega) Delta++ at 7.1-GeV/c

Owens, J.F. ; Eisner, R.L. ; Chung, S.U. ; et al.
Nucl.Phys. B112 (1976) 514-544, 1976.
Inspire Record 3423 DOI 10.17182/hepdata.35710
2 data tables

No description provided.

No description provided.


Study of Vector Meson Baryon Resonance Production in pi+ p Interactions at 7.1-GeV/c

Chung, S.U. ; Protopopescu, S.D. ; Eisner, R.L. ; et al.
Phys.Rev. D12 (1975) 693, 1975.
Inspire Record 99147 DOI 10.17182/hepdata.48154
15 data tables

STATISTICAL ERRORS ONLY.

No description provided.

JACKSON FRAME.

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Study of the Reaction pi+ p --> omega Delta++ (1236) at 16-GeV/c

The Aachen-Berlin-Bonn-CERN-Cracow-Heidelberg collaboration Grassler, H. ; Honecker, R. ; Laven, H. ; et al.
Nucl.Phys. B115 (1976) 365-384, 1976.
Inspire Record 110390 DOI 10.17182/hepdata.35656

The reaction π + p→ ωΔ ++ (1236) is studied at 16 GeV/ c . Cross section, differential cross section, single and joint spin-density matrix elements are given and the correlations between the ε and Δ ++ (1236) decay angular distributions are investigated. Natural and unnatural spin-parity exchanges contribute to this reaction in roughly equal amounts. Natural exchanges lead predominantly to Δ ++ (1236) with helicity ± 3 2 , while unnatural exchanges lead predominantly to Δ ++ (1236) with helicity ± 1 2 and to ε with helicity zero. Furthermore, unnatural exchanges are small at t ′≅0.2 GeV 2 compared to other t ′ values, which may be due to the nonsense wrong-signature-zero of the B-meson exchange. Quark model relations are found to be satisfied by the data.

6 data tables

CORRECTED FOR UNSEEN OMEGA DECAY MODES. 'SLICE METHOD' USED TO HANDLE RESONANCE TAILS AND BACKGROUND.

FROM EVENTS WITHIN MASS-CUTS FOR RESONANCES AND NORMALIZED TO TOTAL CROSS SECTION.

'ALL'.

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