dc.contributor.author | Pittau, Roberto | |
dc.date.accessioned | 2020-01-24T11:07:09Z | |
dc.date.available | 2020-01-24T11:07:09Z | |
dc.date.issued | 2019-11-11 | |
dc.identifier.citation | Pittau, R. (2020). Matching high-energy electroweak fermion loops onto the Fermi theory without higher dimensional operators. Nuclear Physics B, 950, 114835. | es_ES |
dc.identifier.uri | http://hdl.handle.net/10481/59124 | |
dc.description.abstract | We derive the conditions for matching high-energy renormalizable Quantum Field Theories onto low-energy nonrenormalizable ones by means of the FDR approach described in [1]. Our procedure works order-by-order in the loop expansion and avoids the addition of higher dimensional interactions into the non-renormalizable Lagrangian. To illustrate our strategy, we match the high-energy fermion-loop corrections computed in the complete electroweak theory onto the nonrenormalizable four-fermion Fermi model. As a result, the Fermi Lagrangian can be used without modifications to reproduce, at arbitrary loop orders and energies, the exact electroweak interactions between two massless fermion lines induced by one-fermion-loop resummed gauge boson propagators. | es_ES |
dc.description.sponsorship | I acknowledge the financial support of the MINECO project FPA2016-78220-C3-3-P and the hospitality of the CERN TH department during the completion of this work. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier BV | es_ES |
dc.rights | Atribución 3.0 España | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.title | Matching high-energy electroweak fermion loops onto the Fermi theory without higher dimensional operators | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |
dc.identifier.doi | 10.1016/j.nuclphysb.2019.114835 | |