Date

A Measurement of the Direct Photon Spectrum From the $\Upsilon$ (1s)

The CLEO collaboration Csorna, S.E. ; Mestayer, M.D. ; Panvini, R.S. ; et al.
Phys.Rev.Lett. 56 (1986) 1222, 1986.
Inspire Record 220652 DOI 10.17182/hepdata.20260

We have observed decays of the ϒ(1S) into hadronic final states containing high-energy photons. These are interpreted as coming from the decay ϒ(1S)→γ+gluon+gluon. We compare the shape of the observed photon energy spectrum with several theoretical predictions and deduce the value of the strong-coupling constant αs and the QCD scale parameter ΛMS― (MS― denotes the modified minimal-subtraction scheme) associated with each prediction.

2 data tables

DATA TAKEN ON THE PEAK OF THE UPSI(9460).

DATA TAKEN ON THE PEAK OF THE UPSI(9460).


Production of $G(1590)$ and Other Mesons Decaying Into $\eta$ Pairs by 100-{GeV}/$c \pi^-$ on Protons

Alde, D. ; Binon, F.G. ; Bricman, C. ; et al.
Yad.Fiz. 44 (1986) 120-136, 1986.
Inspire Record 222928 DOI 10.17182/hepdata.10313

None

3 data tables

No description provided.

No description provided.

No description provided.


Inclusive $\phi$ Production in $B$ Meson Decay

The CLEO collaboration Bortoletto, D. ; Chen, A. ; Garren, L. ; et al.
Phys.Rev.Lett. 56 (1986) 800, 1986.
Inspire Record 218314 DOI 10.17182/hepdata.20228

We have measured the inclusive branching ratio for B→φX to be 0.023±0.006±0.005. The momentum distribution of the φ mesons is compared with that expected from the cascade decays B→F→φ and B→D→φ. .AE

3 data tables

DATA SAMPLE CONSISTED OF 30.4 1/PB. DATA TAKEN ON THE PEAK OF THE UPSI(10575).

CONTINUUM DATA SAMPLE CONSISTED OF 12.8 1/PB. ENERGY JUST BELOW THE UPSI(10575).

69970 B BBAR EVENTS.


CHARGED D* MESON PRODUCTION IN e+ e- ANNIHILATION AT S**(1/2) = 29-GeV

The TPC/Two Gamma collaboration Aihara, H. ; Alston-Garnjost, M. ; Armitage, J.C. ; et al.
Phys.Rev.D 34 (1986) 1945, 1986.
Inspire Record 217416 DOI 10.17182/hepdata.23509

The production of charmed D* mesons in e+e− annihilations at a center-of-mass energy of 29 GeV has been studied using the time-projection-chamber (TPC) detector at the SLAC storage ring PEP. The production cross section, fragmentation function, and forward-backward asymmetry due to electroweak effects are measured, and a limit on D0-D¯0 mixing is determined.

2 data tables

No description provided.

No description provided.


Comparison of Light Quark and Charm Quark Fragmentation

Kesten, P. ; Akerlof, C. ; Bonvicini, G. ; et al.
Phys.Lett.B 161 (1985) 412-416, 1985.
Inspire Record 17116 DOI 10.17182/hepdata.30349

Separate samples of charm quark and light quark (u, d, s) jets have been isolated in an experiment studying e + e − annihilations at s = 29 GeV . The results come from data corresponding to an integrated luminosity of 111 pb −1 collected by the High Resolution Spectrometer. Differences were observed in charged multiplicities, momentum distributions, and rapidity of the size expected from the different fragmentation functions and leading particle decay properties of the two samples.

3 data tables

Charm Quark Jet Trigger. Characteristics of Jet Opposite the Trigger Jet.

Light Quark Jet Trigger. Characteristics of Jet Opposite the Trigger Jet.

No description provided.


TWO PROTON CORRELATIONS IN alpha C INTERACTIONS AT 4.2-GeV/c PER NUCLEON

Akhababian, N. ; Armutliisky, D. ; Bogdanovich, E. ; et al.
Sov.J.Nucl.Phys. 44 (1986) 278, 1986.
Inspire Record 220129 DOI 10.17182/hepdata.17561

None

18 data tables

No description provided.

No description provided.

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A DETERMINATION OF THE FRAGMENTATION FUNCTIONS OF u QUARKS INTO CHARGED PIONS

The European Muon collaboration Aubert, J.J. ; Bassompierre, G. ; Becks, K.H. ; et al.
Phys.Lett.B 160 (1985) 417-420, 1985.
Inspire Record 213987 DOI 10.17182/hepdata.49627

The fragmentation functions of u-quarks into positive and negative pions are determined from an analysis of identified pions produced in deep inelastic muon-deuterium scattering. The method adopted is not sensitive to the knowledge of the primary quark distribution functions. The fragmentation of u quarks to positive pions is found to fall less steeply in z than that to negative pions as expected in the quark parton model.

1 data table

Here Z=P(P=3)/E(P=3).


LAMBDA AND K0(S) PRODUCTION IN INELASTIC AND MULTI - NUCLEON C C INTERACTIONS AT 4.2-GeV/c PER NUCLEON

Armutliisky, D.D. ; Bogdanovich, E. ; Gasparian, A.P. ; et al.
JINR-P1-85-220, 1985.
Inspire Record 216729 DOI 10.17182/hepdata.9643

None

10 data tables

No description provided.

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TESTS OF MODELS FOR PARTON FRAGMENTATION USING THREE JET EVENTS IN e+ e- ANNIHILATION the s**(1/2) = 29-GeV

The TPC/Two Gamma collaboration Aihara, H. ; Alston-Garnjost, M. ; Bakken, J.A. ; et al.
Phys.Rev.Lett. 54 (1985) 270, 1985.
Inspire Record 205871 DOI 10.17182/hepdata.20358

The distribution of particles in three-jet events is compared with the predictions of three fragmentation models currently in use: the Lund string model, the Webber cluster model, and an independent fragmentation model. The Lund model and, to a certain extent, the Webber model provide reasonable descriptions of the data. The independent fragmentation model does not describe the distribution of particles at large angles with respect to the jet axes. The results provide evidence that the sources of hadrons are Lorentz boosted with respect to the overall c.m.

1 data table

No description provided.


ANGULAR AND ENERGY CHARACTERISTICS OF SECONDARY CHARGED PARTICLES FROM ANTI-PROTON PROTON INTERACTIONS AT 22.4-GEV/C MOMENTUM

Boos, E.G. ; Ermilova, D.I. ; Samoilov, V.V. ; et al.
Alma Ata Inst. High Energy Phys. Acad. Sci. - 85-04 (rec.Jul.86) 19 p, 1984.
Inspire Record 210833 DOI 10.17182/hepdata.13427

None

58 data tables

No description provided.

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