Lth 350 Dred, Universality and the Superparticle Spectrum *
نویسنده
چکیده
Recent work on the use of dimensional reduction for the regularisation of non– supersymmetric theories is reviewed. It is then shown that there exists a class of theories for which a universal form of the soft supersymmetry breaking terms is invariant under renormalisation. It is argued that this universal form might be approached as an infra–red fixed point for the unified theory above the unification scale. The superparticle spectrum is calculated for these theories.
منابع مشابه
v 2 8 J ul 1 99 6 LTH 375 hep - ph / 9606323 N = 1 supersymmetry and the three loop gauge β - function
We calculate the three loop gauge β-function for an abelian N = 1 supersymmetric gauge theory, using DRED. We construct a coupling constant redefinition that relates the result to the corresponding term in the NSVZ β-function, and by generalising this redefinition to the non-abelian case we derive the DRED three loop gauge β-function for the non-abelian case.
متن کاملNo-Scale Scenario with Non-Universal Gaugino Masses
Phenomenological issues of no-scale structure of Kähler potential are reexamined, which arises in various approaches to supersymmetry breaking. When no-scale boundary conditions are given at the Grand Unified scale and universal gaugino masses are postulated, a bino mass is quite degenerate with right-handed slepton masses and the requirement that the lightest superparticle (LSP) be neutral sup...
متن کاملLeptogenesis and Gravitino Dark Matter
We study implications of thermal leptogenesis for the superparticle mass spectrum. A consistent picture is obtained if the lightest superparticle is the gravitino, which can be the dominant component of cold dark matter. In the case of a long-lived charged scalar lepton as next-to-lightest superparticle, supergravity can be tested at the next generation of colliders, LHC and ILC.
متن کامل1 99 1 QMW - 91 - 18 June 1991 ON THE COVARIANT QUANTIZATION OF THE 2 nd . ILK SUPERPARTICLE
This paper is devoted to the quantization of the second-ilk superparticle using the Batalin-Vilkovisky method. We show the full structure of the master action. By imposing gauge conditions on the gauge fields rather than on coordinates we find a gauge-fixed quantum action which is free. The structure of the BRST charge is exhibited, and the BRST cohomology yields the same physical spectrum as t...
متن کاملSoft Supersymmetry Breaking and the Supersymmetric Standard Model
We recall how the idea of Softly Broken Supersymmetry led to the construction of the Supersymmetric Standard Model in 1981. Its first prediction, the supersymmetric unification of gauge couplings, was conclusively verified by the LEP and SLC experiments 10 years later. Its other predictions include: the existence of superparticles at the electroweak scale; a stable lightest superparticle (LSP) ...
متن کامل