Amidei, D.
Single Differential Distribution
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Inclusive spectra of pi- mesons with cumulative number n(c) > 0.35 produced in d C, He C, and C C interactions at 4.2-GeV/c per nucleon.

Baatar, Ts. ; Batsaikhan, Ts. ; Ivanovskaya, I.A. ; et al.
Sov.J.Nucl.Phys. 53 (1991) 292-296, 1991.
Inspire Record 295859 DOI 10.17182/hepdata.38726

None

2 data tables
Table 1

No description provided.

Table 2

No description provided.


rivet Analysis
Pseudorapidity Distributions of Charged Particles Produced in anti-p p Interactions at s**(1/2) = 630-GeV and 1800-GeV

The CDF collaboration Abe, F. ; Amidei, D. ; Apollinari, G. ; et al.
Phys.Rev.D 41 (1990) 2330, 1989.
Inspire Record 283352 DOI 10.17182/hepdata.52936

We present measurements of the pseudorapidity (η) distribution of charged particles (dNchdη) produced within |η|≤3.5 in proton-antiproton collisions at s of 630 and 1800 GeV. We measure dNchdη at η=0 to be 3.18±0.06(stat)±0.10(syst) at 630 GeV, and 3.95±0.03 (stat)±0.13(syst) at 1800 GeV. Many systematic errors in the ratio of dNchdη at the two energies cancel, and we measure 1.26±0.01±0.04 for the ratio of dNchdη at 1800 GeV to that at 630 GeV within |η|≤3. Comparing to lower-energy data, we observe an increase faster than ln(s) in dNchdη at η=0.

4 data tables
Table 1

General rapidity densities.

Table 2

No description provided.

Table 3

Differential pseudorapidity distribution.. The numbers here at 1800 GeV have been taken from the HZTool routine hzf89201e provded by Arthur Moraes.

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Measurement of $K^+ K^-$ Production in $\gamma \gamma$ Collisions

The ARGUS collaboration Albrecht, H. ; Glaser, R. ; Harder, G. ; et al.
Z.Phys.C 48 (1990) 183-190, 1990.
Inspire Record 284561 DOI 10.17182/hepdata.15151

The production of charged kaon pairs in two-photon interactions has been studied with the ARGUS detector and the topological cross section has been measured. The γγ-widths and interference parameters have been determined for the tensor mesonsf2 (1270),a2 (1318) andf′2 (1525). The helicity structure assumed for the continuum contribution has a significant effect on the result. Upper limits have been obtained for the γγ-widths of the glueball candidate statesf2 (1720) andX (2230).

3 data tables
Table 1

Data read from graph.. Errors are the square roots of the number of events.

Table 2

Cross section allowing for spin components JM = 22,20,00. Data read from graph.. Additional overall systematic error 8.4%.

Table 3

Cross section allowing for spin components JM = 22,00. Data read from graph.. Additional overall systematic error 8.4%.


rivet Analysis
MULTI - HADRON EVENT PROPERTIES IN e+ e- ANNIHILATION AT s**(1/2) = 52-GeV to 57-GeV

The AMY collaboration Li, Y.K. ; Li, J. ; Cheng, C.P. ; et al.
Phys.Rev.D 41 (1990) 2675, 1990.
Inspire Record 283337 DOI 10.17182/hepdata.38416

We present the general properties of multihadron final states produced by e+e− annihilation at center-of-mass energies from 52 to 57 GeV in the AMY detector at the KEK collider TRISTAN. Global shape, inclusive charged-particle, and particle-flow distributions are presented. Our measurements are compared with QCD+fragmentation models that use either leading-logarithmic parton-shower evolution or QCD matrix elements at the parton level, and either string or cluster fragmentation for hadronization.

22 data tables
Table 1

Rapidity distribution with respect to the Thrust axis.

Table 2

Charged particle X distribution.

Table 3

Charged particle PL distribution.

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Measurement of the Analyzing Power in the Primakoff Process With a High-energy Polarized Proton Beam

The FERMILAB E-704 collaboration Carey, David C. ; Coleman, R.N. ; Corcoran, M.D. ; et al.
Phys.Rev.Lett. 64 (1990) 357, 1990.
Inspire Record 282042 DOI 10.17182/hepdata.19957

The analyzing power (spin-dependent azimuthal asymmetry) has been observed for the first time in the nuclear Coulomb coherent production process, the ‘‘Primakoff process,’’ with the use of the newly constructed 185-GeV/c Fermilab polarized proton beam. We have observed a large asymmetry of this process in the regions of ‖t’‖<0.001 (GeV/c)2 and 1.36

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Charged Particle Multiplicity Distributions in Oxygen - Nucleus Collisions at 60-{GeV} and 200-{GeV} Per Nucleon

The HELIOS collaboration Akesson, T. ; Almehed, S. ; Angelis, A.L.S. ; et al.
Nucl.Phys.B 333 (1990) 48-65, 1990.
Inspire Record 281287 DOI 10.17182/hepdata.33112

Multiplicity distributions of charged particles produced in the pseudorapidity range 0.9 < η lab < 5.5 were measured in oxygen-nucleus collisions for Al, Ag, and W target nuclei at incident energies of 60 and 200 GeV per nucleon. The multiplicity differential cross sections and the pseudorapidity distributions as a function of transverse energy are presented for the various target nuclei. The correlation between charged multiplicity and transverse energy is studied as a function of transverse energy. Data are compared with predictions of the IRIS and FRITIOF generators.

18 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Inclusive Negative Particle $p(T$) Spectra in $P$ - Nucleus and Nucleus-nucleus Collisions at 200-{GeV} Per Nucleon

The Helios collaboration Åkesson, T. ; Almehed, S. ; Angelis, A.L. S. ; et al.
Z.Phys.C 46 (1990) 361-368, 1990.
Inspire Record 282897 DOI 10.17182/hepdata.15239

The HELIOS experiment has measured inclusivep⊥ spectra of negative particles in the rapidity region 1.0 is found to be approximately constant up to the highest accessible values ofE⊥.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


First Measurements of Hadronic Decays of the $Z$ Boson

The MARK-II collaboration Abrams, G.S. ; Adolphsen, Chris ; Aleksan, R. ; et al.
Phys.Rev.Lett. 63 (1989) 1558, 1989.
Inspire Record 282670 DOI 10.17182/hepdata.20044

We have observed hadronic final states produced in the decays of Z bosons. In order to study the parton structure of these events, we compare the distributions in sphericity, thurst, aplanarity, and number of jets to the predictions of several QCD-based models and to data from lower energies. The data and models agree within the present statistical precision.

5 data tables
Table 1

Corrected event shape distributions.

Table 2

Corrected event shape distributions.

Table 3

Corrected event shape distributions.

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rivet Analysis
Measurements of $\alpha^- s$ in $e^+ e^-$ Annihilation at $\sqrt{s}=53$.3-{GeV} and 59.5-{GeV}

The TOPAZ collaboration Adachi, I. ; Aihara, H. ; Doser, M. ; et al.
Phys.Lett.B 227 (1989) 495-500, 1989.
Inspire Record 279575 DOI 10.17182/hepdata.29800

We studied the energy-energy correlation (EEC) and its asymmetry (AEEC) using e + e − hadronic annihilation events obtained at √ s =53.3 GeV and 59.5 GeV with the TOPAZ detector at the TRISTAN collider. We used a Monte Carlo simulation combined with the QCD matrix elements by Gottschalk and Shatz and the Lund string fragmentation model. By comparing the experimental data with simulated events, we determined the strong coupling constant α s at both energies. The results are 0.129±0.007 (stat) ±0.010 (syst) at √ s =53.3 GeV and 0.122±0.008 (stat) ±0.010 (syst) at 59.5 GeV.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


rivet Analysis
Inclusive $\pi^0$ and $\eta$ Meson Production in Electron Positron Interactions at $\sqrt{s}=10$-{GeV}

The ARGUS collaboration Albrecht, H. ; Glaser, R. ; Harder, G. ; et al.
Z.Phys.C 46 (1990) 15, 1990.
Inspire Record 278933 DOI 10.17182/hepdata.15301

We report on a high statistics study of π0 and η production in continuum events and in direct decays of the Γ(1S) and Γ(2S) resonances. The measured production rates per event are\(\left\langle {n_{\pi ^0 } } \right\rangle\)=3.22 ± 0.07 ± 0.31 (3.97 ± 0.23 ± 0.38) and 〈nη〉=0.19 ± 0.04 ± 0.04 (0.40 ± 0.14 ± 0.09) for continuum events (direct Γ(1S) decays).

6 data tables
Table 1

First data point in table is from the continuum at sqrt(s)=9.46 GeV.

Table 2

First data point in table is from the continuum at sqrt(s)=9.46 GeV.

Table 3

PI0 spectrum in the continuum.

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