[en] In this contribution the developments in the description of vector boson plus jets signatures at hadron colliders in recent years are summarised. Particular focus is put on its relevance as background to top physics

[en] Presented are measurements of the W boson mass from the D0 and CDF collaborations at the Tevatron from the 1994-1996 run. The W events are produced in p anti p collisions at √s = 1.8 TeV. The W mass extracted from W → eν decays at D0 is determined to be 80.45 ± 0.12 GeV; and from W → μν decays at CDF is 80. 43 ± 0.16 GeV. The world average W mass from the hadron collider measurements is 80.41 ± 0.09 GeV

[en] Recent trilinear gauge boson couplings measurements by the CDF and D0 Collaborations at the Fermilab Tevatron are presented. The measurements were done by analyzing diboson production in multiple decay channels and final states. No deviations from the Standard Model description of the WWZ, WWγ, ZZγ and Zγγ vertices were found. Limits on anomalous gauge couplings set by these analyses are the tightest available to date

[en] We discuss the model independent parameterization for a strongly interacting electroweak sector. Phenomenological studies are made to probe such a sector for future colliders such as the LHC, e⁺e^- Linear collider and a muon collider

[en] A partial review of the history of weak interactions and the W boson is given in order to show the trend of the development of this study. 31 references

No abstract available

[en] The CDF and D0 Collaborations obtain new measurements of the W boson mass using data taken between 1994 and 1996. CDF updates the previous result obtained from W → μν decays, reducing many systematic uncertainties, and performs a new measurement using a high statistics sample of W → eν events; combining these measurements with the previous ones yields M_W^CDF =80.433 ampersand ± 0.079 GeV/c and sup2;. D0 also extends the previous result, based on central electron events, by including events with electrons landed in the forward calorimeters; the combined D0 result is M_W^D0 = 80.474 and ± 0.093 GeV/c and sup 2;. The numbers obtained by the two experiments can be combined together with the older UA2 one (M_W^UA2 = 80.36 and ± 0.37 GeV/c and sup2;), by assuming a 25 MeV/c and sup2; common error, to yield a hadron collider average of M_W =80.448 and ± 0.062 GeV/c and sup2;

[en] An algorithms for constructing the power of two-loop two-point diagrams with arbitrary masses of the internal particles

[en] We study the possibility of relaxing the indirect limits on extra neutral vector bosons by their interplay with additional new particles. They can be systematically weakened, even below present direct bounds at colliders, by the addition of more vector bosons and/or scalars designed for this purpose. Otherwise, they appear to be robust.

[en] The recent discovery of the intermediate vector bosons at the CERN anti pp collider allows us to put limits on the number, Δnsub(ν), of additional types of light neutrinos. The standard model gives a simple relationship between the width of the Z⁰, GAMMAsub(Z) and Δnsub(ν). When we determine GAMMA sub(Z) directly from the experimentally measured mass of four of our eight events we find Δnsub(ν) < 22 (Δnsub(ν) < 41) with 90% (95%) confidence. If we determine GAMMAsub(Z) indirectly from the ratio of the number of Z⁰→e⁺+e^- to W+-→e+-+ν(antiν) events we find that Δnsub(ν)=0(Δnsub(ν)<2) with 90% (95%) confidence. All of these limits are somewhat better than one might have expected