1
This occurs because the mass of the Z boson is 91 GeV.
2
And anyway, what about the W and Z bosons?
3
The discovery of higher-mass W and Z bosons would shed important new light on these interactions.
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These are heavier versions of the W and Z bosons, which are responsible for weak interactions.
5
The reason for the difference is the mass of the W and Z bosons, which carry the weak force.
6
We report the first evidence of Z boson pair production at a hadron collider with a significance exceeding 4 standard deviations.
7
So for four-lepton masses below twice this mass -182 GeV -the Z bosons cannot have their most probable mass.
8
One of the ways the Higgs boson can decay is to two Z bosons, which then decay to two leptons each.
9
Events with two oppositely charged electrons or muons, consistent with coming from the decay of a Z boson, and jets are investigated.
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They just get close, and then the neutrino transfers a tiny bit of energy to a neutral particle called a Z boson.
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Charged-particle distributions, excluding the lepton-antilepton pair from the Z-boson decay, are measured in different ranges of transverse momentum of the Z boson.
12
We select events with a final state composed of a W or Z boson and a jet consistent with a heavy object decay.
13
Event-shape observables measured using charged particles in inclusive Z-boson events are presented, using the electron and muon decay modes of the Z bosons.
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Direct searches for lepton flavour violation in decays of the Higgs and Z bosons with the ATLAS detector at the LHC are presented.
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The third is a fixed-order calculation with next-to-next-to-leading order accuracy for the process with a Z boson and one parton in the final state.
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Events with a hadronic jet with the jet mass consistent with a W or Z boson, and with large missing transverse momentum are analyzed.