One-loop WLWL and ZLZL scattering from the electroweak Chiral Lagrangian with a light Higgs-like scalar

dc.contributor.authorLlanes Estrada, Felipe José
dc.contributor.authorDelgado López, Rafael
dc.contributor.authorDobado González, Antonio
dc.descriptionOpen Access, © The Authors. AD thanks useful conversations with D. Espriu, M. J. Herrero and J. J. Sanz-Cillero. The work has been supported by the spanish grant FPA2011-27853-C02-01 and by the grant BES-2012-056054 (RLD).
dc.description.abstractBy including the recently discovered Higgs-like scalar phi in the Electroweak Chiral Lagrangian, and using the Equivalence Theorem, we carry out the complete one-loop computation of the elastic scattering amplitude for the longitudinal components of the gauge bosons V = W, Z at high energy. We also compute phi phi -> phi phi and the inelastic process V V -> phi phi, and identify the counterterms needed to cancel the divergences, namely the well known a(4) and a(5) chiral parameters plus three additional ones only superficially treated in the literature because of their dimension 8. Finally we compute all the partial waves and discuss the limitations of the one-loop computation due to only approximate unitarity.
dc.description.departmentDepto. de Física Teórica
dc.description.facultyFac. de Ciencias Físicas
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dc.journal.titleJournal of High Energy Physics
dc.rightsAtribución 3.0 España
dc.rights.accessRightsopen access
dc.subject.keywordSymmetry-Breaking Sector
dc.subject.keywordStrongly Interacting Ws
dc.subject.keywordComposite Higgs
dc.subject.keywordTechnicolor Theories
dc.subject.keywordVacuum Misalignment
dc.subject.keywordWeak Interactions
dc.subject.keywordStandard Model
dc.subject.keywordAtlas Detector
dc.subject.keywordPP Collisions
dc.subject.ucmFísica (Física)
dc.subject.unesco22 Física
dc.titleOne-loop WLWL and ZLZL scattering from the electroweak Chiral Lagrangian with a light Higgs-like scalar
dc.typejournal article
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