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RESULTS FROM DASP ON E+ E- ANNIHILATION BETWEEN 3.1-GEV AND 5.2-GEV

The DASP collaboration Brandelik, R. ; Braunschweig, W. ; Martyn, H.U. ; et al.

Z.Phys.C 1 (1979) 233-256, 1979.

Inspire Record 145403 DOI 10.17182/hepdata.16476

This paper summarizes the measurements one+e− annihilation performed by the DASP Collaboration in the energy range between 3.1 and 5.2 GeV. The following topics are covered: total cross section, production and two body decays of the narrow resonances, radiative decays of theJ/ψ and ψ′ resonances and evidence for theX(2.82), ψ′ cascade decays, inclusive η production and evidence for theF meson, semileptonic decays of charmed mesons and properties of the heavy lepton.

5 data tables

Table 1

THESE DATA ON R WERE PUBLISHED IN R. BRANDELIK ET AL., PL 76B, 361 (1978), THE RECORD OF WHICH HAS TABULATED CROSS SECTIONS WITH AND WITHOUT THE TAU HEAVY LEPTON CONTRIBUTION.

Table 2

OBSERVATION OF J/PSI RESONANCE.

Table 3

OBSERVATION OF PSI(3700)0 RESONANCE.

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BARYONIC RESONANCE PRODUCTION IN ANTI-P P INTERACTIONS AT 32-GEV/C. FRANCE-SOVIET UNION AND CERN-SOVIET UNION COLLABORATIONS

Baland, J.F. ; Poiret, C. ; Windmolders, R. ; et al.

Z.Phys.C 3 (1979) 187-191, 1979.

Inspire Record 148165 DOI 10.17182/hepdata.16657

None

5 data tables

Table 1

Table 2

Table 3

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SMALL ANGLE ELASTIC HE D SCATTERING AT 9.0-GEV/C AND 19.8-GEV/C. (IN RUSSIAN)

Avdeichikov, V.V. ; Beznogikh, G.G. ; Budilov, V.A. ; et al.

Yad.Fiz. 30 (1979) 610-617, 1979.

Inspire Record 147556 DOI 10.17182/hepdata.18168

None

2 data tables

Table 1

X ERROR D(-T)/(-T) = 2.0000 PCT.

Table 2

X ERROR D(-T)/(-T) = 2.0000 PCT.

Spin and Parity Analysis of K anti-K pi System in the D and E/Iota Regions

Chung, S.U. ; Fernow, Richard C. ; Kirk, H. ; et al.

Phys.Rev.Lett. 55 (1985) 779, 1985.

Inspire Record 151125 DOI 10.17182/hepdata.20272

We have performed a high-statistics experiment on the reaction π−p→K+K¯0π−n at 8.0 GeV/c. A Dalitz-plot analysis of the K+K¯0π− system finds that the D(1285) is a JPG=1++ state coupling predominantly to a δπ decay channel, while the E(1420) peak consists mostly of a JPG=0−+ wave with a substantial δπ decay mode. There is little evidence of a 1++ resonance at the E mass.

1 data table

Table 1

No description provided.

K+ P AND K- P ELASTIC SCATTERING AT 32.1-GEV/C. FRANCE-SOVIET UNION AND CERN-SOVIET UNION COLLABORATIONS

Lewin, C. ; Denegri, D. ; Givernaud, A. ; et al.

Z.Phys.C 3 (1979) 275-284, 1979.

Inspire Record 148166 DOI 10.17182/hepdata.15899

None

2 data tables

Table 1

CROSS-OVER IS AT -T = 0.17 +- 0.02 GEV**2. DIVIDE BY 20 TO GET D(SIG)/DT IN MB/GEV**2. CORRECTED FOR LOST EVENTS FOR -T < 0.12 GEV**2.

Table 2

FROM QUADRATIC EXPONENTIAL FIT TO D(SIG)/DT. BOTH STATISTICAL AND SYSTEMATIC ERRORS INCLUDED IN VALUES.

anti-LAMBDA PRODUCTION IN K- p INTERACTIONS AT 32-GeV/c

The French-Soviet & CERN-Soviet collaborations Gensch, U. ; Klein, R. ; Schreiber, H.J. ; et al.

Z.Phys.C 2 (1979) 7, 1979.

Inspire Record 142667 DOI 10.17182/hepdata.16317

Antilambda production is studied inK−p interactions at 32 GeV/c. Both total and differential cross sections are presented. The inclusive$\bar \Lambda $ production cross section amounts to 109±7 μb. A remarkable energy dependence is observed, σ($\bar \Lambda $) increasing by a factor of four between 14.3 and 32 GeV/c. Thep⊥2 distribution exhibits an exponential fall-off with a slope of 3.3±0.2 (GeV/c)−2. Most of the$\bar \Lambda $'s are emitted in the forward hemisphere. The invariantx distribution increases between 14.3 and 32 GeV/c. Data are presented for$\bar \Lambda $ production inK-p→Λ$\bar \Lambda $+XK-p→$\bar \Lambda $Kn+X, andK-p→$\bar \Lambda $p+X.

1 data table

Table 1

No description provided.

INCLUSIVE DELTA++ (1232) AND SIGMA+- (1385) PRODUCTION IN K- P INTERACTIONS AT 32-GEV/C. FRANCE-SOVIET UNION AND CERN-SOVIET UNION COLLABORATIONS

Walter, M. ; Becker, L. ; Klabuhn, J. ; et al.

Z.Phys.C 3 (1979) 89-95, 1979.

Inspire Record 148164 DOI 10.17182/hepdata.15987

We have studied inclusiveΔ++ (1232),∑+ (1385), and∑− (1385) baryon resonance production inK−p interactions at 32 GeV/c. The inclusive and topological cross sections are estimated and compared with published results at lower energies. No energy variation of the cross section is observed forΔ++ (1232) and only a slight decrease is seen in case of∑± (1385). The production properties are investigated through longitudinal and transverse momentum distributions. TheΔ++ (1232) is dominantly produced in the target fragmentation region. The∑+ (1385) is produced both in the target fragmentation region and in the central region, while the∑− (1385) is predominantly produced in the central region. About 20% of the final state protons are produced via aΔ++ (1232) decay and about 25% of the Λ produced come from the decay of∑+ (1385) and∑− (1385).

3 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.