منابع مشابه
Soft Photons in W + W − Production at LEP 200
The pattern of soft photon radiation in e+e− → W+W− has a rich structure, with contributions from photon emission off the initial state and off the final state particles both before and after decay. In particular, the interference between the contributions involving the decaying W ’s depends on the decay width. We review the theoretical result for the radiation pattern, and present predictions ...
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Single W and single gamma productions which are sensitive to the trilinear gauge coupling WWγ have been studied at LEP. It is shown that single W production has particular sensitivity to the 'anomalous' magnetic moment κγ of the W boson, complementary to WW production at LEP and Wγ production at hadron colliders. The invisible decay of W boson has been searched and the limit on the invisible de...
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on behalf of CMS and ATLAS collaborations Institute for studies in theoretical physics and mathematics (IPM), Production of single top quarks at LHC provides a perfect possibility to investigate the properties of electroweak interaction, in particular tWb coupling. Moreover, single top is a powerful mean to identify physics beyond the standard model. All three different production mechanisms of...
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Single top quark production via four-fermion contact interactions associated to flavour-changing neutral currents was searched for in data taken by the DELPHI detector at LEP2. The data were accumulated at centre-ofmass energies ranging from 189 to 209 GeV, with an integrated luminosity of 598.1 pb−1. No evidence for a signal was found. Limits on the energy scale Λ, were set for scalar-, vector...
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Relatively light sneutrinos, which are experimentally allowed, may significantly affect the currently popular search strategies for supersymmetric particles by decaying dominantly into an invisible channel. In certain cases the second lightest neutralino may also decay invisibly leading to two extra carriers of missing energy – in addition to the lightest supersymmetric particle (LSP) Z̃1 – the ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1994
ISSN: 0370-2693
DOI: 10.1016/0370-2693(94)90050-7