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MEASUREMENT OF K0 TOTAL CROSS-SECTIONS ON NUCLEI. (IN RUSSIAN)

Berezin, V.M. ; Bogdanov, E.T. ; Vishnevsky, M.E. ; et al.

Yad.Fiz. 43 (1986) 358-365, 1986.

Inspire Record 231531 DOI 10.17182/hepdata.17514

None

1 data table

Table 1

Axis error includes +- 1/1 contribution (DUE TO BACKGROUND).

MEASUREMENT OF THE RATIO sigma (W ---> e neutrino) / sigma (Z ---> e e) IN anti-p p COLLISIONS AT S**(1/2) = 1.8-TeV

The CDF collaboration Abe, F. ; Amidei, Dante E. ; Apollinari, G. ; et al.

Phys.Rev.Lett. 64 (1990) 152-156, 1990.

Inspire Record 285490 DOI 10.17182/hepdata.19969

An analysis of W- and Z-boson production using data from the Collider Detector at Fermilab at √s =1.8 TeV yields σ(W→ev)/σ(Z→ee)=10.2±0.8(stat)±0.4(syst). The width of the W boson, Γ(W), and a limit on the top-quark mass independent of decay mode are extracted from this measurement.

1 data table

Table 1

No description provided.

MEASUREMENT OF THE REAL TO IMAGINARY RATIO OF THE ANTI-P P FORWARD SCATTERING AMPLITUDES

Ashford, V. ; Sainio, M.E. ; Sakitt, M. ; et al.

Phys.Rev.Lett. 54 (1985) 518-521, 1985.

Inspire Record 216074 DOI 10.17182/hepdata.20329

We have measured the ratio of the real to the imaginary parts of the p¯p forward-scattering amplitude in the incident-momentum range 360 to 650 MeV/c. These results are in good agreement with predictions of the Paris nucleon-antinucleon potential model which include spin-flip effects.

3 data tables

Table 1

Table 2

RESULTS OF FITS TO THE FORWARD-SCATTERING DIFFERENTIAL CROSS SECTIONS ASSUMING THE RATIO OF THE SPIN-FLIP TO NON-SPIN-FLIP PARTS OF THE FORWARD AMPLITUDE IS ZERO.

Table 3

RESULTS OF FITS TO THE FORWARD-SCATTERING DIFFERENTIAL CROSS SECTIONS ASSUMING THE RATIO OF THE SPIN-FLIP TO NON-SPIN-FLIP PARTS OF THE FORWARD AMPLITUDE IS PARAMATERISED AS 0.3698-0.1384*PLAB(IN GEV).

rivet Analysis
MEASUREMENTS OF R FOR e+ e- ANNIHILATION AT TRISTAN

The AMY collaboration Kumita, T. ; Sagawa, H. ; Auchincloss, Priscilla S. ; et al.

Phys.Rev.D 42 (1990) 1339-1349, 1990.

Inspire Record 294525 DOI 10.17182/hepdata.22908

The ratio R of the total cross section for e+e− annihilation into hadrons to the lowest-order QED cross section for e+e−→μ+μ− has been measured for center-of-mass energies ranging from 50 to 61.4 GeV. If we allow for an overall shift of —4.9%, about 1.5 times our estimated normalization error, the results are consistent with the standard-model predictions.

1 data table

Table 1

Error quoted contains point-to-point systematics. There is also an additional 3.2 pct systematic error.

MEASUREMENTS OF THE CROSS-SECTION FOR e+ e- ---> gamma gamma at TRISTAN

The AMY collaboration Kim, H.J. ; Kang, J.S. ; Lee, M.H. ; et al.

KEK-Preprint-89-52, 1989.

Inspire Record 280029 DOI 10.17182/hepdata.38418

None

1 data table

Table 1

No description provided.

MEASUREMENTS OF THE e+ e- TOTAL HADRONIC CROSS-SECTION AND A DETERMINATION OF M(Z) AND LAMBDA (MS)

The AMY collaboration Mori, T. ; Nozaki, T. ; Blanis, D. ; et al.

Phys.Lett.B 218 (1989) 499-507, 1989.

Inspire Record 276653 DOI 10.17182/hepdata.29847

The total cross section for e + e − annihilation into hadrons has been measured for CM energies ranging from 50 to 57 GeV. We fit the predictions of the standard model to these measurements and those at lower energies. The mass of the Z 0 boson, M Z , and the QCD scale parameter, Λ MS , are derived from the fit. The results are M Z =88.6 −1.8 +2.0 GeV/ c 2 , and Λ MS =0.15 −0.11 +0.16 GeV .

1 data table

Table 1

No description provided.

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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Mass dependence of pi0 production in heavy ion collisions at 1-A/GeV

Schwalb, O. ; Pfeiffer, M. ; Berg, F.-D. ; et al.

Phys.Lett.B 321 (1994) 20-25, 1994.

Inspire Record 376130 DOI 10.17182/hepdata.28781

The production of neutral pions has been studied in the reactions 40 Ar + nat Ca , 86 Kr + nat Zr and 197 Au + 197 Au at 1 A GeV. For high energy pions emitted from the heavier systems a steeper than linear rise of the pion multiplicity with the centrality of the reaction is observed, indicating a pion production process other than binary nucleon-nucleon collisions. At low transverse momenta an enhancement of the π 0 -multiplicity increasing with the mass of the collision system is found. Systematic discrepancies between the experimental results and recent BUU, QMD and Cascade calculations are discussed.

6 data tables

Table 1

No description provided.

Table 2

RESULTS OF AN EXTRAPOLATION TO THE FULL SOLID ANGLE TAKING THE EXPERIMENTALTEMPERATURES INTO ACCOUNT.

Table 3

No description provided.

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Measurement and Interpretation of Fermion-Pair Production at LEP Energies of 183 and 189 GeV

The DELPHI collaboration Abreu, P. ; Adam, W. ; Adye, T. ; et al.

Phys.Lett.B 485 (2000) 45-61, 2000.

Inspire Record 529847 DOI 10.17182/hepdata.49937

An analysis of the data collected in 1997 and 1998 with the DELPHI detector at e+e- collision energies close to 183 and 189 GeV was performed in order to extract the hadronic and leptonic fermion-pair cross-sections, as well as the leptonic forward-backward asymmetries and angular distributions. The data are used to put limit on contact interactions between fermions, the exchange of R-parity violating SUSY sneutrinos, Z' bosons and the existence of gravity in extra dimensions.

7 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.