Date

MEASUREMENTS OF PROTON INCLUSIVE SPECTRA INDUCED BY COLLISIONS OF C-12 NUCLEI WITH C, CU, SN AND PB NUCLEI AT 3.6-GEV/NUCLEON. (IN RUSSIAN)

Adyasevich, B.P. ; Antonenko, V.G. ; Vinogradov, A.A. ; et al.
Yad.Fiz. 40 (1984) 495-501, 1984.
Inspire Record 208219 DOI 10.17182/hepdata.2638

None

9 data tables

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DATA IMPLYING FORMATION OF A MOVING SOURCE IN COLLISIONS OF C-12 NUCLEI WITH VARIOUS TARGET NUCLEI AT 3.6-GEV/NUCLEON

Adyasevich, B.P. ; Antonenko, V.G. ; Grigorian, Yu.I. ; et al.
Phys.Lett.B 142 (1984) 245-248, 1984.
Inspire Record 206646 DOI 10.17182/hepdata.30529

Inclusive spectra of protons emitted in the interaction of 12 C-projectiles at an energy of 3.6 GeV/nucleon and C, Cu, Sn and Pb target nuclei were measured. The analysis of the experimental data suggests that in all these interactions the main contribution to proton cross sections in the investigated kinematic region is due to emission from a moving source with a rapidity which differs greatly from the target nucleus rapidity, y t , as well as from that of the effective fireball. The properties of this source such as the excitation energy depend only slightly on the combination of the colliding nuclei.

4 data tables

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DETERMINATION OF CROSS-SECTIONS OF STRANGE PARTICLE PRODUCTION CHANNELS IN ANTI-P P INTERACTIONS AT 32-GeV/c. (IN RUSSIAN)

Bogolyubsky, M.Yu. ; Boos, E.G. ; Borovikov, A.A. ; et al.
Yad.Fiz. 39 (1984) 1436-1447, 1984.
Inspire Record 209441 DOI 10.17182/hepdata.17683

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1 data table

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STRUCTURE FUNCTIONS OF THE NUCLEI C-12, Cu-63, Pb-208 IN THE CUMULATIVE PROTON PHOTOPRODUCTION

Alanakian, K.V. ; Amarian, M.J. ; Demirchyan, R.A. ; et al.
Yad.Fiz. 41 (1985) 353-356, 1985.
Inspire Record 201858 DOI 10.17182/hepdata.18443

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2 data tables

No description provided.

MISPRINT IN TAB.1 IN YV AT XV=0.763, CORRECTED BY VVE FROM GRAPH.


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

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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

CONTINUUM IS ECM 10.38 TO 10.64 GEV.

No description provided.


RECENT RESULTS OF EXPERIMENTS WITH THE NEUTRAL DETECTOR AT VEPP-2M

Druzhinin, V.P. ; Dubrovin, M.S. ; Eidelman, S.I. ; et al.
IYF-84-93, 1984.
Inspire Record 202875 DOI 10.17182/hepdata.37143

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1 data table

'AXION' IS NEUTRAL BOSON WHICH HAS MASS < 200 MEV. IT IS ASSUMED THAT NEITHER THIS BOSON NOR THE PRODUCTS OF ITS DECAY ARE DETECTED.


STUDY OF ELASTIC anti-p p SCATTERING AT 32-GeV/c

Bogolyubsky, M.Yu. ; Kiryunin, A.E. ; Kotova, A.I. ; et al.
Sov.J.Nucl.Phys. 41 (1985) 773, 1985.
Inspire Record 205769 DOI 10.17182/hepdata.40982

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3 data tables

Axis error includes +- 0.0/0.0 contribution (?////FOR LOSSES OF PROTONS WITH MOMENTUM >1.2 GEV).

Axis error includes +- 0.0/0.0 contribution (?////FOR LOSSES OF PROTONS WITH MOMENTUM >1.2 GEV).

Axis error includes +- 0.0/0.0 contribution (?////FOR LOSSES OF PROTONS WITH MOMENTUM >1.2 GEV).


$\Lambda$ Production in $e^+ e^-$ Annihilation at 29-{GeV}

de la Vaissiere, C. ; Luth, V. ; Abrams, G.S. ; et al.
Phys.Rev.Lett. 54 (1985) 2071-2074, 1985.
Inspire Record 209198 DOI 10.17182/hepdata.20378

The production of Λ hyperons in e+e− annihilation has been measured as a function of their total momenta, transverse momenta, and the event thrust. The total production rate is 0.213±0.012±0.018 Λ or Λ¯ per hadronic event. The observation of correlations in rapidity and angles for events with two detected Λ decays supports fragmentation models with local baryon-number compensation.

3 data tables

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Inclusive Hadron Production in Upsilon Decays and in Nonresonant electron-Positron Annihilation at 10.49-GeV

The CLEO collaboration Behrends, S. ; Chadwick, K. ; Gentile, T. ; et al.
Phys.Rev.D 31 (1985) 2161, 1985.
Inspire Record 205668 DOI 10.17182/hepdata.23589

We report measurements of single-particle inclusive spectra and two-particle correlations in decays of the Υ(1S) resonance and in nonresonant annihilations of electrons and positrons at center-of-mass energy 10.49 GeV, just below BB¯ threshold. These data were obtained using the CLEO detector at the Cornell Electron Storage Ring (CESR) and provide information on the production of π, K, ρ, K*, φ, p, Λ, and Ξ in quark and gluon jets. The average multiplicity of hadrons per event for upsilon decays (compared with continuum annihilations) is 11.4 (10.5) pions, 2.4 (2.2) kaons, 0.6 (0.5) ρ0, 1.2 (0.8) K*, 0.6 (0.4) protons and antiprotons, 0.15 (0.08) φ, 0.19 (0.07) Λ and Λ¯, and 0.016 (0.005) Ξ− and Ξ¯ +. We have also seen evidence for η and f0 production. The most significant differences between upsilon and continuum final states are (1) the inclusive energy spectra fall off more rapidly with increasing particle energy in upsilon decays, (2) the production of heavier particles, especially baryons, is not as strongly suppressed in upsilon decays, and (3) baryon and antibaryon are more likely to be correlated at long range in upsilon decay than in continuum events.

36 data tables

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VALUES AT X = 0.10 ARE ACTUALLY AP RATES DOUBLED.

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