Extending the limits of Higgs effective theory

• Verfasst von: Biekötter, Anke [VerfasserIn]
• Verfasst von: Brehmer, Johann [VerfasserIn]
• Verfasst von: Plehn, Tilman [VerfasserIn]
• Titel: Extending the limits of Higgs effective theory
• Verf.angabe: Anke Biekötter, Johann Brehmer, and Tilman Plehn
• E-Jahr: 2016
• Jahr: 26 September 2016
• Umfang: 14 S.
• Fussnoten: Gesehen am 11.05.2020
• Titel Quelle: Enthalten in: Physical review
• Ort Quelle: Woodbury, NY : Inst., 2016
• Jahr Quelle: 2016
• Band/Heft Quelle: 94(2016,5) Artikel-Nummer 055032, 14 Seiten
• ISSN Quelle: 2470-0029
• DOI: doi:10.1103/PhysRevD.94.055032
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1697834914

Abstract

Based on a vector triplet model, we study a possible failure of dimension-6 operators in describing LHC Higgs kinematics. First, we illustrate that including dimension-6 contributions squared can significantly improve the agreement between the full model and the dimension-6 approximation, both in associated Higgs production and in weak-boson-fusion Higgs production. Second, we test how a simplified model with an additional heavy scalar could improve the agreement in critical LHC observables. In weak boson fusion, we find an improvement for virtuality related observables at large energies, but at the cost of sizeable deviations in interference patterns and angular correlations.