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Nonstrange Vector Meson Production in K- p Interactions at 4.2-GeV/c

The Amsterdam-CERN-Nijmegen-Oxford collaboration Losty, M.J. ; Holmgren, S.-O. ; Aguilar-Benitez, M. ; et al.
Nucl.Phys.B 133 (1978) 38, 1978.
Inspire Record 121759 DOI 10.17182/hepdata.8294

The vector meson production, hypercharge exchange reactions K − p → ( φ , ω , ϱ ) Λ and ( φ , ϱ ) Σ 0 are studied at 4.2 GeV/ c incident momentum. The data come from a high statistics bubble chamber experiment with a sensitivity of ∼ 120 events/μb. Total and differential cross sections are presented. The vector meson density matrix elements and hyperon polarization are investigated as functions of momentum transfer. Amplitude analyses are performed for all five reactions. The results are compared with duality and quark model predictions, as well as used to test current ideas in two-body phenomenology.

38 data tables
Table 1

ERRORS INCLUDE THE 5 PCT MODEL ERROR BUT NOT THEORETICAL RESONANCE PARAMETRIZATION ERRORS.

Table 2

No description provided.

Table 3

No description provided.

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A study of the hypercharge exchange reactions k- p ---> 1- 1/2+ at an incoming momentum of 4.25 gev/c

De Groot, A.J. ; Hodgland, W. ; Jongejans, B. ; et al.
Nucl.Phys.B 74 (1974) 77-101, 1974.
Inspire Record 94650 DOI 10.17182/hepdata.32272

Results are reported of a study of the hypercharge reactions K − p → ωΛ (la), K − p → φΛ (lb), K − p → φ ∑ o (lc), K − p → ϱ o Λ (ld), K − p → ϱ o ∑ o (le), K − p → ϱ − ∑ + (lf) in a 12 events/ub bubble chamber experiment using K − mesons of 4.25 GeV/ c momentum. Total and differential cross sections are presented as well as the density matrix elements of the peripherally produced vector meson and (except for reaction (1f)) the hyperon polarization. For reactions (1a) and (1b) an amplitude analysis is performed. The mass and the width of the ϱ−, φ− and f-meson have been determined.

4 data tables
Table 1

FURTHER DATA FROM THIS COLLABORATION ON THESE REACTIONS WITH TEN TIMES BETTER STATISTICS ARE PRESENTED IN M. J. LOSTY ET AL., NP B133, 38 (1978).

Table 2

No description provided.

Table 3

No description provided.

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K- p --> Lambda0 Or Sigma0 Vector Meson at 3.1-GeV/c-3.6-GeV/c

Lyons, L. ; Cooper-Sarkar, Amanda M. ; Clark, A.G. ;
Nucl.Phys.B 125 (1977) 207-242, 1977.
Inspire Record 125082 DOI 10.17182/hepdata.35373

We present data on the five final states Λω, Λφ, Λϱ 0 , Σ 0 ⊘ and Σ 0 ϱ 0 produced in 3.1–3.6 GeV/ c K − p interactions. These data are from a bubble chamber experiment with 18 events/μb. For all reactions the data consist of the overall and differetial cross sections, and the hyperon polarisation and the vector meson's density matrix elements as a function of momentum transfer. For Λω and Λ⊘, an almost complete amplitude analysis is performed in several regions of momentum transfer. The data are examined from the point of view of various exchange models.

15 data tables
Table 1

CORRECTED FOR UNSEEN DECAY MODES OF LAMBDA, OMEGA AND PHI.

Table 2

No description provided.

Table 3

NO BACKWARD PHI PRODUCTION.

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