HEPData Search

The jet character of the hadronic final states produced ine+e− annihilations is studied in terms of jet measures such as thrust, sphericity, jet opening angle and jet masses, in the energy range 7.7 to 31.6 GeV. All distributions and averages have been corrected for detector effects and initial state radiation. The energy dependence of the averages of these jet quantities is used to estimate the contributions due to perturbative QCD and fragmentation effects. Correlations between the jet measures and the multiplicity of charged hadrons are also presented.

12 data tables

Table 1

DIFFERENTIAL THRUST DISTRIBUTIONS WHERE THRUST IS MAX(SUM(ABS(PLONG))/SUM(ABS(P))).

Table 2

MEAN THRUST VALUES AS A FUNCTION OF CM ENERGY.

Table 3

DIFFERENTIAL SPERICITY DISTRIBUTIONS WHERE SPHERICITY IS 3/2*MIN(SUM(PT**2)/SUM(ABS(P))).

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RESULTS ON LAMBDA(c)+, D(s)+, D0 AND D+ PRODUCTION PROPERTIES IN 230-GeV/c pi- Cu INTERACTIONS FROM THE NA32 EXPERIMENT

The ACCMOR collaboration Barlag, S. ; Becker, H. ; Bohringer, T. ; et al.

CERN-EP/88-104, 1988.

Inspire Record 264995 DOI 10.17182/hepdata.12879

None

33 data tables

Table 1

AUTHORS FIT D2(SIG)/D(XL)/D(PT**2) BY (1-XL)**POWER*EXP(-SLOPE*PT**2).

Table 2

AUTHORS FIT D2(SIG)/D(XL)/D(PT**2) BY (1-XL)**POWER*EXP(-SLOPE*PT**2).

Table 3

AUTHORS FIT D2(SIG)/D(XL)/D(PT**2) BY (1-XL)**POWER*EXP(-SLOPE*PT**2).

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A Measurement of the W boson mass

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

Phys.Rev.Lett. 65 (1990) 2243-2246, 1990.

Inspire Record 299674 DOI 10.17182/hepdata.19940

We have determined mW=79.91±0.39 GeV/c2 from an analysis of W→eν and W→μν data from the Collider Detector at Fermilab in p¯p collisions at a c.m. energy of √s =1.8 TeV. This result, together with the world-average Z mass, determines the weak mixing angle to be sin2θW=0.232±0.008. Bounds on the top-quark mass are discussed.

1 data table

Table 1

Combining W mass result with world-average Z mass (91.191 GEV).

Hadroproduction of D anti-D pairs in the interaction of 350-GeV/c pi- mesons with nuclei

The WA75 collaboration Aoki, S. ; Baroni, G. ; Bisi, V. ; et al.

Prog.Theor.Phys. 87 (1992) 1315-1322, 1992.

Inspire Record 322545 DOI 10.17182/hepdata.48517

Results are presented on the production characteristics of charmed particles obtained from the WA75 emulsion hybrid experiment. The events, selected by the presence of a muon with a high momentum transverse to the beam direction, were located and analysed in nuclear emulsions. Inclusive and correlation properties are systematically compared with the lowest-order QCD calculations for DD hadroproduction. Results concerning the correlation properties indicate some contribution from next-to-leading order [O(α_S^3)] subprocesses.

5 data tables

Table 1

459 DECAYS: 119 D0, 119 DBAR0, 115 D+, 106 D-.

Table 2

177 PAIRS: 38 D0 DBAR0, 46 D0 D-, 45 D+ DBAR0, 48 D+ D-.

Table 3

120 PAIRS: 38 D0 DBAR0, 31 D0 D-, 32 D+ DBAR0, 19 D+ D-.

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Charmed pair correlations in pi- Cu interactions at 230-GeV/c.

The ACCMOR collaboration Barlag, S. ; Becker, H. ; Bożek, A. ; et al.

Phys.Lett.B 302 (1993) 112-118, 1993.

Inspire Record 362064 DOI 10.17182/hepdata.28956

In the CERN NA32 experiment a high-resolution silicon vertex detector and a purely topological approach were used to collect 557 events consistent with associated charm production, both decay vertices being observed. The pseudorapidity gap distribution appears to be nearly independent of the nature of the charmed hadrons. This distribution is reasonably consistent with the next-to-leading order QCD calculations. However the azimuthal-angle distribution is significantly broader than the above predictions.

2 data tables

Table 1

FOR ONLY 20 EVENTS IN WICH BOTH DECAYS ARE FULLY RECONSTRUCTED ( 26 D0 , 8 D+ , 5 D/S+ , 1 LAMBDA/C+ CHARMED PARTICLES ).

Table 2

No description provided.