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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.


A Study of High Transverse Momentum Electrons Produced in anti-p p Collisions at 540-GeV

The UA2 & Bern-CERN-Copenhagen-Orsay-Pavia-Saclay collaborations Bagnaia, P. ; Banner, M. ; Battiston, R. ; et al.
Z.Phys.C 24 (1984) 1, 1984.
Inspire Record 200803 DOI 10.17182/hepdata.16251

The production of electrons with very high transverse momentum has been studied in the UA2 experiment at the CERN\(\bar pp\) collider (\(\sqrt s\)=540 GeV). From a sample of events containing an electron candidate withpT>15 GeV/c, we extract a clear signal resulting from the production of the charged intermediate vector bosonW±, which subsequently decays into an electron and a neutrino. We study theW production and decay properties. Further-more, we refine our results on the production and decay of the neutral vector bosonZ0. Finally, we compare the experimental results to the predictions of the standard model of the unified electro-weak theory.

1 data table
Table 1

No description provided.


Observation of the Muonic Decay of the Charged Intermediate Vector Boson

The UA1 collaboration Arnison, G. ; Astbury, A. ; Aubert, Bernard ; et al.
Phys.Lett.B 134 (1984) 469-476, 1984.
Inspire Record 195217 DOI 10.17182/hepdata.30609

Muons of high transverse momentum p μ T have been observed in the large drift chambers surrounding the UA1 detector at the CERN 540 GeV pp̄ collider. For an integrated luminosity of 108 nb −1 , 14 isolated muons have been found with p T > 15 GeV/ c . They are correlated with a large imbalance in total transverse energy, and show a kinematic behaviour consistent with the muonic decay of the Intermediate Vector Boson W ± of weak interactions. The partial cross section is in agreement with previous measurements for electronic decays and with muon-electron universality. The W mass is determined to be m W = 81 +6 −7 GeV/ c 2 .

1 data table
Table 1

No description provided.


Further Evidence for Charged Intermediate Vector Bosons at the SPS Collider

The UA1 collaboration Arnison, G. ; Astbury, A. ; Aubert, Bernard ; et al.
Phys.Lett.B 129 (1983) 273-282, 1983.
Inspire Record 191741 DOI 10.17182/hepdata.30659

A sample of 52 Intermediate Vector Boson decays in the ( v e e) channel is described. They were produced at the CERN SPS Collider for an integrated luminosity of 0.136 pb −1 . Both production and decay properties fit well with expectations from the Standard Model of weak interactions. An improved value for the W mass is given and compared with the previously published value for the Z 0 mass.

1 data table
Table 1

No description provided.