De Clercq, C.
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rivet Analysis
Inclusive Charged Particle Distribution in Nearly Threefold Symmetric Three Jet Events at $e$({CM}) = 29-{GeV}

Petersen, A. ; Abrams, G.S. ; Amidei, D. ; et al.
Phys.Rev.Lett. 55 (1985) 1954, 1985.
Inspire Record 216850 DOI 10.17182/hepdata.20285

We report a measurement of the inclusive charged-particle distribution for gluon jets derived from nearly threefold-symmetric three-jet events taken at center-of-mass energy of 29 GeV in e+e− annihilation. The charged-particle spectrum for these jets is observed to fall off more rapidly than those of quark jets of the same energy.

1 data table
Table 1

Errors include both statistics and the uncertainty in correction factors. X is defined at the energy of the individual particle divided by the total energy of the jet to which it is assigned.


EVIDENCE FOR IOTA PRODUCTION IN HIGH-ENERGY e+ e- ANNIHILATION

The JADE collaboration Bartel, W. ; Becker, L. ; Cords, D. ; et al.
DESY-85-081, 1985.
Inspire Record 220907 DOI 10.17182/hepdata.45208

None

1 data table
Table 1

Background subtracted.


$D \bar{D}$ Correlations in 360-{GeV}/$c \pi^- p$ Interactions

The NA27 & LEBC-EHS collaborations Aguilar-Benitez, M. ; Allison, W.W. ; Baland, J.F. ; et al.
Phys.Lett.B 164 (1985) 404-409, 1985.
Inspire Record 216598 DOI 10.17182/hepdata.49642

Charm-charm correlation properties are studied in detail for the first time using a sample of D D pairs produced in 360 GeV/ c π − p interactions. The data are compared with various models of charm production.

1 data table
Table 1

No description provided.


rivet Analysis
Hadron Production in $e^+ e^-$ Annihilation at $\sqrt{s}=29$-{GeV}

Derrick, M. ; Fernandez, E. ; Fries, R. ; et al.
Phys.Rev.D 35 (1987) 2639, 1987.
Inspire Record 215848 DOI 10.17182/hepdata.23381

Data from the High Resolution Spectrometer at the SLAC storage ring PEP have been used to study the inclusive production of baryons and mesons. Time-of-flight measurements are used to identify the charged hadrons. Neutral hadrons are identified from effective-mass peaks associated with their decay into two charged particles. Cross sections and other inclusive production characteristics are presented for π±, K±, and K0 (K¯0) mesons, and for the baryons (antibaryons) p (p¯) and Λ (Λ¯). The ratio of the inclusive cross section to the point cross section for the K0 and K¯0 mesons is R(K0,K¯0)=6.15±0.13±0.25, and for Λ and Λ¯, R(Λ,Λ¯)=0.846±0.036±0.085. The neutral-hadron differential cross sections are compared with the predictions of the Lund string model.

8 data tables
Table 1

Charged particle fractions. Errors contain systematic uncertainties.

Table 2

Charged particle invariant cross sections. Errors contain systematic uncertainties.

Table 3

Charged particle invariant cross sections. Errors contain systematic uncertainties.

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Inclusive $K^*$ and $\Sigma^*$ Production in 360-{GeV}/$c p p$ Interactions Using the European Hybrid Spectrometer

The EHS-RCBC collaboration Aziz, T. ; Bailly, J.L. ; Banerjee, S. ; et al.
Z.Phys.C 30 (1986) 381, 1986.
Inspire Record 216822 DOI 10.17182/hepdata.15884

We have studied the inclusive production of strange meson and baryon resonances in 360 GeV/cpp interactions. Cross sections forK*+(892) andK*−(892) are estimated to be 4.42±0.62 mb and 2.54±0.47 mb respectively and those for∑+(1385) and∑−(1385) are 0.67±0.11 mb and 0.26±0.07 mb respectively. Longitudinal and transverse momentum distributions forK*(892) and Σ(1385) are presented, as well as for their decay productsK0 and Λ. An estimation is given on theK*(1430) and∑*(1915) productions.

1 data table
Table 1

No description provided.


Inclusive High $p_T \pi^0$ Production From $\pi^\pm$ and Protons at 200-{GeV}/$c$

The NA3 collaboration Badier, J. ; Bardadin-Otwinowska, M. ; Bemporad, C. ; et al.
Z.Phys.C 30 (1986) 45, 1986.
Inspire Record 216588 DOI 10.17182/hepdata.15912

We have measured the inclusive cross-section for π0 production at large transverse momentum by 200 GeV/c positive and negative hadron beams on Carbon targets (2.9

2 data tables
Table 1

CONVERSION TRIGGER SELECTION.

Table 2

CALORIMETER TRIGGER SELECTION.


NEW RESULTS ON NEUTRAL D MESON PROPERTIES IN 360-GeV/c pi- p INTERACTIONS

Aguilar-Benitez, M. ; Allison, W.W. ; Barr, V.M. ; et al.
IFVE-85-21, 1985.
Inspire Record 223942 DOI 10.17182/hepdata.40961

None

1 data table
Table 1

No description provided.


W Production Properties at the {CERN} {SPS} Collider

The UA1 collaboration Arnison, G. ; Albrow, M.G. ; Allkofer, C. ; et al.
Lett.Nuovo Cim. 44 (1985) 1-16, 1985.
Inspire Record 216595 DOI 10.17182/hepdata.37589

The production properties of a sample of 172 charged intermediate vector bosons produced at the CERN Super Proton Synchrotron Collider are described. The production cross-section, the longitudinal- and transverse-momentum distributions and the properties of hadronic jet activity produced in association with the weak bosons are in agreement with the expectations of the QCD-improved Drell-Yan mechanism.

1 data table
Table 1

No description provided.


Inclusive Properties of d Mesons Produced in 360-GeV pi- p Interactions

The NA27 & LEBC-EHS collaborations Aguilar-Benitez, M. ; Allison, W.W. ; Baland, J.F. ; et al.
Phys.Lett.B 161 (1985) 400-406, 1985.
Inspire Record 216596 DOI 10.17182/hepdata.30352

The inclusive cross sections for forward D meson production at s =26 GeV in π − p interactions have been measured to be: σ(π − p → D 0 / D 0 + X ) x F >0 = (10.1±2.2)μ b , σ(π − p → D ±+ X ) x F >0 = (5.7±1.6)μ b . The distribution in x F for all D and for x F >0 has the form d σ/ d x F =107 −37 +39 (1−x F ) 7.5 −1.7 +2.5 +5.4 −3.8 +6.0 (1−x F ) 0.7 −0.7 1.0 μ b , with evidence for leading D production. The p T 2 distribution is exponential with slope parameter [−1.18 −0.16 +0.18 ]( GeV / c) −2 . The data are compared with predictions from first-order quark/gluon fusion calculations.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


Tau Lepton Production and Decay at {PETRA} Energies

The JADE collaboration Bartel, W. ; Becker, L. ; Cords, D. ; et al.
Phys.Lett.B 161 (1985) 188, 1985.
Inspire Record 220695 DOI 10.17182/hepdata.30350

The production and decay of τ-pairs was studied with the JADE detector at PETRA at center-of-mass energies of 30 ⩽√ s ⩽ 46.78 GeV. The total production cross section for τ-pairs agreed with QED predictions to order α 3 . Lower limits on QED cut-off parameters of Λ + > 285 GeV and Λ − > 210 GeV at 95% confidence level were ontained. The decay branching fractions into one and three charged particles were determined to be (86.1 ± 0.5 ± 0.9)% and (13.6±0.5 ±0.80)%. In the angular distributions a forward-backward asymmetry was observed, from which the axial-vector weak charge to the τ was determined to be a τ = −0.74 ± 0.22 in agreement with the standard model. An analysis of the process e + e − → τ + τ − γ showed agreement with QED calculations to O(α 3 ).

4 data tables
Table 1

Includes data from earlier analysis at lower energy - M. Nozaki - Tokyo - UTLICEPP-82-02.

Table 2

Angular distributions - data requested from authors.

Table 3

Forward-backward asymmetry determined from fit to angular distribution of form N*(1 + cos(theta)**2 + (3/8)*A*cos(theta)).

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