273 citations · 2.9k across the 77 of their papers we have counts for
37 papers · 1 filter
Asymptotic Padé Predictions up to Six Loops in QCD and Eight Loops in
J. A. Gracey, I. Jack, D. R. T. Jones
We assess the accuracy of our previous Asymptotic Padé predictions of the five-loop QCD -function and quark mass anomalous dimension in the light of subsequent exact results. We…
Anomaly Mediation, Fayet-Iliopoulos D-terms and the Renormalisation Group
R. Hodgson, I. Jack, D. R. T. Jones
We address renormalisation group evolution issues that arise in the Anomaly Mediated Supersymmetry Breaking scenario when the tachyonic slepton problem is resolved by Fayet-Iliopou…
Supersymmetry Parameter Analysis: SPA Convention and Project
J. A. Aguilar-Saavedra, A. Ali, B. C. Allanach +122
High-precision analyses of supersymmetry parameters aim at reconstructing the fundamental supersymmetric theory and its breaking mechanism. A well defined theoretical framework is…
Anomaly Mediation, Fayet-Iliopoulos D-terms and precision sparticle spectra
R. Hodgson, I. Jack, D. R. T. Jones +1
We consider the sparticle spectra that arise when anomaly mediation is the source of supersymmetry-breaking and the tachyonic slepton problem is solved by a Fayet-Iliopoulos D-term…
Two-loop beta-functions and their effects for the R-parity Violating MSSM
I. Jack, D. R. T. Jones, A. F. Kord
We present the full two-loop beta-functions for the MSSM including R-parity violating couplings. We analyse the effect of two-loop running on the bounds on R-parity violating coupl…
Snowmass Benchmark Points and Three-Loop Running
I. Jack, D. R. T. Jones, A. F. Kord
We present the full three-loop beta-functions for the MSSM generalised to include additional matter multiplets in 5, 10 representations of SU(5). We analyse in detail the effect of…
R-parity Violation and General Soft Supersymmetry Breaking
I. Jack, D. R. T. Jones, A. F. Kord
We consider the most general class possible of soft supersymmetry breaking terms that can be added to the MSSM, with and without R-parity violation, consistent with the sole requir…
Yukawa Textures and the mu-term
I. Jack, D. R. T. Jones, R. Wild
We show how with an anomaly-free U(1), simple assumptions concerning the origin of Yukawa textures and the Higgs mu-term lead to the prediction of a new physics scale of 10^8GeV an…
Three loop soft running, benchmark points and semi-perturbative unification
I. Jack, D. R. T. Jones, A. F. Kord
We consider three-loop -function corrections to the sparticle spectrum in the MSSM, with particular emphasis on Snowmass Benchmark points. The three loop running has little effe…
Yukawa Textures and Anomaly Mediated Supersymmetry Breaking
I. Jack, D. R. T. Jones
We present a detailed analysis of how a mixed-anomaly-free U(1) symmetry can be used to both resolve the slepton mass problem associated with Anomaly Mediated Supersymmetry Breakin…
Fayet-Iliopoulos D-terms, neutrino masses and anomaly mediated supersymmetry breaking
I. Jack, D. R. T. Jones, R. Wild
We explore, in the context of the MSSM generalised to admit massive neutrinos, an extension of the Anomaly Mediated Supersymmetry Breaking solution for the soft scalar masses to in…
The Standard Model Effective Potential at Two Loops
C. Ford, I. Jack, D. R. T. Jones
We calculate the standard model effective potential to two loops using minimal subtraction, and use the result to deduce the two-loop beta-functions for the scalar mass and quartic…
Gauge singlet renormalisation in softly-broken supersymmetric theories
I. Jack, D. R. T. Jones, R. Wild
We consider the renormalisation of a softly-broken supersymmetric theory with singlet fields and a superpotential with a linear term. We show that there exist exact beta-functions…
The Fayet-Iliopoulos D-term and its renormalisation in softly-broken supersymmetric theories
I. Jack, D. R. T. Jones, S. Parsons
We consider the renormalisation of the Fayet-Iliopoulos D-term in a softly-broken abelian supersymmetric theory, and calculate the associated beta-function through three loops. We…
R-symmetry, Yukawa textures and anomaly mediated supersymmetry breaking
I. Jack, D. R. T. Jones
We explore, in the MSSM context, an extension of the Anomaly Mediated Supersymmetry Breaking solution for the soft scalar masses that is possible if the underlying theory has a gau…
Fayet-Iliopoulos D-terms and anomaly mediated supersymmetry breaking
I. Jack, D. R. T. Jones
We show that in a minimal extension of the MSSM by means of an extra U(1) gauge group, the negative mass-squared problem characteristic of the Anomaly Mediated Supersymmetry Breaki…
Renormalisation of the Fayet-Iliopoulos D-term
I. Jack, D. R. T. Jones
We consider the renormalisation of the Fayet-Iliopoulos D-term in a softly-broken Abelian supersymmetric theory. We show that there exists (at least through three loops) a renormal…
Quasi-infra-red fixed points and renormalisation group invariant trajectories for non-holomorphic soft supersymmetry breaking
I. Jack, D. R. T. Jones
In the MSSM the quasi-infra-red fixed point for the top-quark Yukawa coupling gives rise to specific predictions for the soft-breaking parameters. We discuss the extent to which th…
RG invariant solutions for the soft supersymmetry breaking parameters
I. Jack, D. R. T. Jones
We show that the results for the soft couplings in supersymmetric gauge theories recently derived via the superconformal anomaly are equivalent to results obtained earlier from a c…
Non-standard soft supersymmetry breaking
I. Jack, D. R. T. Jones
We explore a more general class of soft supersymmetry-breaking masses and interactions than that usually considered, both in general and in the MSSM context, where our results for…
Infra-red stability of Yukawa and soft-breaking fixed points
I. Jack, D. R. T. Jones
We investigate the infra-red stability of the fixed points in the evolution of the Yukawa couplings, -parameters and soft scalar masses in a broad class of supersymmetric theori…
The soft scalar mass -function
I. Jack, D. R. T. Jones, A. Pickering
We present an exact formula for the -function for the soft-breaking scalar mass in an N=1 supersymmetric gauge theory, in the form of an operator acting on the anomalous dimensi…
Renormalisation Invariance and the Soft -Functions
I. Jack, D. R. T. Jones, A. Pickering
We demonstrate that the soft supersymmetry-breaking terms in a N=1 theory can be linked by simple renormalisation group invariant relations which are valid to all orders of perturb…
Asymptotic Pade Approximant Predictions: up to Five Loops in QCD and SQCD
J. Ellis, I. Jack, D. R. T. Jones +2
We use Asymptotic Pade Approximants (APAP's) to predict the four- and five-loop β-functions in QCD and N=1 supersymmetric QCD (SQCD), as well as the quark mass anomalous dimensions…