229 citations · 986 across the 30 of their papers we have counts for
5 papers · 1 filter
The Limits of Custodial Symmetry
R. Sekhar Chivukula, Stefano Di Chiara, Roshan Foadi +1
We introduce a toy model implementing the proposal of using a custodial symmetry to protect the Zbb coupling from large corrections. This "doublet-extended standard model" adds a w…
Global Symmetries and Renormalizability of Lee-Wick Theories
R. Sekhar Chivukula, Arsham Farzinnia, Roshan Foadi +1
In this paper we discuss the global symmetries and the renormalizibility of Lee-Wick scalar QED. In particular, in the "auxiliary-field" formalism we identify softly broken SO(1,1)…
The Limits of Custodial Symmetry
R. Sekhar Chivukula, Stefano Di Chiara, Roshan Foadi +1
We introduce a toy model implementing the proposal of using a custodial symmetry to protect the Z b_L bbar_L coupling from large corrections. This "doublet-extended standard model"…
Custodial Isospin Violation in the Lee-Wick Standard Model
R. Sekhar Chivukula, Arsham Farzinnia, Roshan Foadi +1
We analyze the tension between naturalness and isospin violation in the Lee-Wick Standard Model (LW SM), by computing tree-level and fermionic one-loop contributions to the post-LE…
Radiative Electroweak Symmetry Breaking in a Little Higgs Model
Roshan Foadi, James T. Laverty, Carl R. Schmidt +1
We present a new Little Higgs model, motivated by the deconstruction of a five-dimensional gauge-Higgs model. The approximate global symmetry is , breaking t…