RT Journal Article
T1 One-loop WLWL and ZLZL scattering from the electroweak Chiral Lagrangian with a light Higgs-like scalar
A1 Llanes Estrada, Felipe José
A1 Delgado López, Rafael
A1 Dobado González, Antonio
AB By 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.
PB Springer
SN 1029-8479
YR 2014
FD 2014-02-27
LK https://hdl.handle.net/20.500.14352/33551
UL https://hdl.handle.net/20.500.14352/33551
LA eng
NO Open 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).
DS Docta Complutense
RD 6 jul 2025