Bosonic Quartic Couplings at LHC

Details Bosonic Quartic Couplings at LHC Bosonic Quartic Couplings at LHC

2003-10-10

arxiv.org/abs/hep-ph/0310141v2

Phys.Rev.D69:095005,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 2 figures, revised version

Scientific paper

10.1103/PhysRevD.69.095005

We analyze the potential of the CERN Large Hadron Collider (LHC) to study anomalous quartic vector-boson interactions Z Z gamma gamma, Z Z Z gamma, W+ W- gamma gamma, and W+ W- Z gamma through the weak boson fusion processes q q -> q q gamma gamma and q q -> q q gamma Z(-> l+ l-) with l = electron or muon. After a careful study of the backgrounds and how to extract them from the data, we show that the process p p -> j j gamma l+ l- is potentially the most sensitive to deviations from the Standard Model, improving the sensitivity to anomalous couplings by up to a factor 10^4 (10^2) with respect to the present direct (indirect) limits.

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