6533b859fe1ef96bd12b83f9

RESEARCH PRODUCT

Anomalous quartic gauge boson couplings at hadron colliders

S. M. LiettiM. C. Gonzalez-garciaSergio F NovaesOjp Eboli

subject

Weak interactions (Nuclear physics)PhysicsNuclear and High Energy PhysicsParticle physicsGauge bosonLarge Hadron ColliderUnitarityAcceleradors de partículesElectron–positron annihilationElectroweak interactionHadronHigh Energy Physics::PhenomenologyInteraccions febles (Física nuclear)TevatronFOS: Physical sciencesPartícules (Física nuclear)Particle acceleratorsNuclear physicsHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)High Energy Physics::ExperimentFermilabParticle Physics - PhenomenologyParticles (Nuclear physics)

description

We analyze the potential of the Fermilab Tevatron and CERN Large Hadron Collider (LHC) to study anomalous quartic vector--boson interactions (photon photon Z Z) and (photon photon W+ W-). Working in the framework of SU(2)_L X U(1)_Y chiral Lagrangians, we study the production of photons pairs accompanied by (e+e-), (e nu), and jet pairs to impose bounds on these new couplings, taking into account the unitarity constraints. We compare our findings with the indirect limits coming from precision electroweak measurements as well as with presently available direct searches at LEPII. We show that the Tevatron Run II can provide limits on these quartic limits which are of the same order of magnitude as the existing bounds from LEPII searches. LHC will be able to tighten considerably the direct constraints on these possible new interactions, leading to more stringent limits than the presently available indirect ones.

yearjournalcountryeditionlanguage
2000-09-21
10.1103/physrevd.63.075008