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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

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Quark and Diquark Fragmentation Into Strange Particles in $\pi^- p$ Interactions at $P=40$-{GeV}/$c$

Grishin, V.G. ; Didenko, L.A. ; Karnaukhov, V.M. ; et al.

Sov.J.Nucl.Phys. 41 (1985) 412, 1985.

Inspire Record 201417 DOI 10.17182/hepdata.17586

None

4 data tables

Table 1

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Search for New Particles in $e^+ e^-$ Annihilation From 39.79-{GeV} to 45.52-{GeV}

Adeva, B. ; Barber, D.P. ; Becker, U. ; et al.

Phys.Rev.Lett. 53 (1984) 134, 1984.

Inspire Record 199819 DOI 10.17182/hepdata.20429

We have searched for resonances in the reaction e+e−→hadrons, γγ, μμ, and ee, in the energy range 39.79<s<45.52 GeV, using the Mark J detector at PETRA. We obtain stringent upper limits on the production of toponium and particles postulated to explain Z0→leptonpair+γ events observed at the CERN p―p collider. We also set limits on the mass and coupling constant of excited electrons.

1 data table

Table 1

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Limit on the B ---> u Coupling from Semileptonic B Decay

The CLEO collaboration Chen, A. ; Goldberg, M. ; Horwitz, N. ; et al.

Phys.Rev.Lett. 52 (1984) 1084, 1984.

Inspire Record 199380 DOI 10.17182/hepdata.20474

We have used the momentum spectrum of leptons produced in semileptonic B-meson decays to set a 90%-confidence-level upper limit on Γ(b→ulν)Γ(b→clν) of 4%. We also measure the semileptonic branching fractions of the B meson to be (12.0±0.7±0.5)% for electrons and (10.8±0.6±1.0)% for muons.

2 data tables

Table 1

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Measurements of the Spin Spin Correlation Parameter C(ss) = (S,s:o,o) at 487-{MeV}, 639-{MeV} and 791-{MeV}

Ditzler, W.R. ; Hill, D. ; Imai, K. ; et al.

Phys.Rev.D 29 (1984) 2137, 1984.

Inspire Record 201499 DOI 10.17182/hepdata.23771

The spin-spin correlation parameter CSS=(S,S;0,0) has been measured for p−p elastic scattering over a large angular range. The data are particularly useful in checking currently available phase-shift solutions.

3 data tables

Table 1

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A Study of rho and Omega Production in pi+ p Interactions at 15.7-GeV/c

Ferguson, Merl McDonald, Jr. ;

Phys.Rev.D 36 (1987) 1961, 1987.

Inspire Record 210652 DOI 10.17182/hepdata.12775

We report the results of a study of ρ and ω production in π+p interactions at 15.7 GeV/c. The SLAC hybrid bubble-chamber facility was used to study reactions in which neutral particles are produced. Three tantalum plates inside the 40-in. bubble chamber and a large array of lead glass downstream of the chamber provided photon detection over a large solid angle. Final states with two neutral particles have been isolated with kinematic fits in which neutral pions were reconstructed in the plates and lead glass. Data from an earlier untriggered π+p bubble-chamber experiment at 15 GeV/c were used to obtain samples of events in channels which did not trigger the hybrid system. Cross sections for ρ and ω production are given for several exclusive final states. Relative ρ and ω production rates are studied. The ratio of nondiffractive ω to ρ0 production is measured to be ω/ρ0=0.44±0.07. We estimate the inclusive ω cross section to be 1.9±0.3 mb. The results are compared to the Lund model of low-pT hadronic reactions.

9 data tables

Table 1

OMEGA cross sections have been corrected to allow for all decay modes.

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INCLUSIVE PHOTON AND PI0 PRODUCTION IN K+ P INTERACTIONS AT 70-GEV/C

The BRUSSELS-CERN-GENOA-MONS-NIJMEGEN-SERPUKHOV collaboration Barth, M. ; De Wolf, E.A. ; Theocharopoulos, P. ; et al.

Z.Phys.C 22 (1984) 23-31, 1984.

Inspire Record 203584 DOI 10.17182/hepdata.2140

Inclusive and semi-inclusive cross sections and distributions of γ's and π0's inK+p interactions at 70 GeV/c are presented. The results are compared to other experiments and to the Lund model for low-pT hadron collisions.

7 data tables

Table 1

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