Babusci, D.
Phenomenology-HEP
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Hyperon Production in $e^+ e^-$ Interactions in the $\Upsilon$ Region

The CLEO collaboration Alam, M.S. ; Csorna, S.E. ; Garren, L. ; et al.
Phys.Rev.Lett. 53 (1984) 24, 1984.
Inspire Record 200712 DOI 10.17182/hepdata.20410

We report measurements from the CLEO detector of the rate of Ξ and Λ production in e+e− interactions in the upsilon region. Hyperon production from the decay of the ϒ(1s) is compared with continuum e+e− data. The ratio of the production rates of Λ (and Λ―) to K0 (and K―0) on the ϒ(1s) is 0.21 ± 0.03, much larger than in the continuum, 0.07 ± 0.01. The ratios of the production rates of the Ξ and Λ are comparable, 0.10±0.02 [ϒ(1S)] and 0.07 ± 0.02 (continuum). We discuss some implications of the data for gluon and quark fragmentation models.

2 data tables
Table 1

CONTINUUM IS ECM 10.38 TO 10.64 GEV.

Table 2

No description provided.


RAPIDITY DISTRIBUTIONS SCALING IN pi- p INTERACTIONS AT P (pi-) = 40-GeV/c

Lyubimov, V.B. ; Omboo, Z. ; Tuvdendorzh, D. ; et al.
Zh.Eksp.Teor.Fiz. 34 (1981) 312, 1981.
Inspire Record 167775 DOI 10.17182/hepdata.38591

None

2 data tables
Table 1

No description provided.

Table 2

NON DIFFRACTION DISSOSIATION EVENTS.


Two-prong events in proton proton interactions at 8.1 gev/c

Ginestet, J. ; Manesse, D. ; Tran, Ha Anh ; et al.
Nucl.Phys.B 13 (1969) 283-293, 1969.
Inspire Record 56040 DOI 10.17182/hepdata.8347

About 10 000 two-prong events of 8.1 GeV/ c proton-proton interactions in the CERN 2 m. bubble chamber have been analyzed. We study elastic scattering and single-pion production reactions. We give cross sections for isobar production. We attempt to interpret the general features of the pp→pn π + reaction by the Deck mechanism. We compare the production and the decay of δ ++ (1236) with absorption or π Regge trajectory exchange models.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.