6 citations · 12 across the 2 of their papers we have counts for
13 papers
Novel formulations of CKM matrix renormalization
B. A. Kniehl, A. Sirlin
We review two recently proposed on-shell schemes for the renormalization of the Cabibbo-Kobayashi-Maskawa (CKM) quark mixing matrix in the Standard Model. One first constructs gaug…
Quark mixing renormalization effects in the determination of the CKM parameters |V_{ij}|
A. A. Almasy, B. A. Kniehl, A. Sirlin
We briefly review existing proposals for the renormalization of the Cabibbo-Kobayashi-Maskawa (CKM) matrix and study the numerical effects of several of them on the W-boson hadroni…
Width and Partial Widths of Unstable Particles
P. A. Grassi, B. A. Kniehl, A. Sirlin
In the gauge theory context, a definition of branching ratios and partial widths of unstable particles is proposed that satisfies the basic principles of additivity and gauge indep…
Effective Mass Scale of New Physics in the Absence of the Higgs Boson
B. A. Kniehl, A. Sirlin
We consider a hypothetical scenario in which the Higgs boson is absent, and attempt to constrain the mass scale Lambda of the new physics that would take its place. Using recent me…
Test of the Heavy Top Expansion in the Evaluation of MW and sin^2theta_eff
P. Gambino, A. Sirlin, G. Weiglein
In order to test the accuracy of the Heavy Top-mass Expansion (HTE) employed in recent two-loop calculations of MW and sin^2theta_eff, we consider their contributions to subtracted…
Mass and Width of a Heavy Higgs Boson
B. A. Kniehl, A. Sirlin
The gauge dependence of the Higgs-boson mass and width in the on-shell scheme of renormalization is studied in the heavy-Higgs-boson approximation. The corresponding expansions in…