scholarly journals Anomaly mediated supersymmetry breaking in four dimensions, naturally

2003 ◽  
Vol 67 (4) ◽  
Author(s):  
Markus A. Luty ◽  
Raman Sundrum
Keyword(s):  
Supersymmetry Breaking ◽  
Four Dimensions

scholarly journals GAUGINO CONDENSATION IN THE CHIRAL AND LINEAR REPRESENTATIONS OF THE DILATON

1995 ◽  
Vol 10 (19) ◽  
pp. 2769-2781 ◽  
Author(s):  
INGO GAIDA ◽  
DIETER LÜST
Keyword(s):  
Supersymmetry Breaking ◽  
Linear Representation ◽  
Four Dimensions ◽  
Linear Representations ◽  
The Subject ◽  
Effective Theories ◽  
Made In ◽  
Chiral Representation

String effective theories with N=1 supersymmetry in four dimensions are the subject of this discussion. Gaugino condensation in the chiral representation of the dilaton is reviewed in the truncated formalism in the UK(1) superspace. By the use of the supersymmetric duality of the dilaton the same investigation is made in the linear representation of the dilaton. We show that for the simple case of one gaugino condensate the results concerning supersymmetry breaking are independent of the representation of the dilaton.

scholarly journals Revisiting the multi-monopole point of SU(N) $$ \mathcal{N} $$ = 2 gauge theory in four dimensions

2021 ◽  
Vol 2021 (9) ◽  
Author(s):  
Eric D’Hoker ◽  
Thomas T. Dumitrescu ◽  
Efrat Gerchkovitz ◽  
Emily Nardoni
Keyword(s):  
Gauge Theory ◽  
Supersymmetry Breaking ◽  
Integrable Systems ◽  
Gauge Theories ◽  
Magnetic Monopoles ◽  
Coulomb Branch ◽  
Four Dimensions ◽  
Broad Agreement ◽  
Exact Agreement ◽  
Soft Supersymmetry Breaking

Abstract Motivated by applications to soft supersymmetry breaking, we revisit the expansion of the Seiberg-Witten solution around the multi-monopole point on the Coulomb branch of pure SU(N) $$ \mathcal{N} $$ N = 2 gauge theory in four dimensions. At this point N − 1 mutually local magnetic monopoles become massless simultaneously, and in a suitable duality frame the gauge couplings logarithmically run to zero. We explicitly calculate the leading threshold corrections to this logarithmic running from the Seiberg-Witten solution by adapting a method previously introduced by D’Hoker and Phong. We compare our computation to existing results in the literature; this includes results specific to SU(2) and SU(3) gauge theories, the large-N results of Douglas and Shenker, as well as results obtained by appealing to integrable systems or topological strings. We find broad agreement, while also clarifying some lingering inconsistencies. Finally, we explicitly extend the results of Douglas and Shenker to finite N , finding exact agreement with our first calculation.

scholarly journals SUPERSYMMETRY BREAKINGS AND FERMAT'S LAST THEOREM

1995 ◽  
Vol 10 (02) ◽  
pp. 149-157 ◽  
Author(s):  
HITOSHI NISHINO
Keyword(s):  
Supersymmetry Breaking ◽  
Parameter Space ◽  
Model Building ◽  
Irrational Number ◽  
Supersymmetric Model ◽  
Four Dimensions ◽  
Fermat's Last Theorem ◽  
Almost Everywhere ◽  
Fermat’S Last Theorem ◽  
Small Change

A mechanism of supersymmetry breaking in two or four dimensions is given, in which the breaking is related to the Fermat's last theorem. It is shown that supersymmetry is exact at some irrational number points in parameter space, while it is broken at all rational number points except for the origin. Accordingly, supersymmetry is exact almost everywhere, as well as broken almost everywhere on the real axis in the parameter space at the same time. This is the first explicit mechanism of supersymmetry breaking with an arbitrarily small change of parameters around any exact supersymmetric model, which is possibly useful for realistically small nonperturbative supersymmetry breakings in superstring model building. Our superpotential can be added as a "hidden" sector to other useful supersymmetric models.

scholarly journals MATTER-COUPLED SUPERGRAVITY WITH GAUSS-BONNET INVARIANTS: COMPONENT LAGRANGIAN AND SUPERSYMMETRY BREAKING

1988 ◽  
Vol 03 (07) ◽  
pp. 1675-1733 ◽  
Author(s):  
S. CECOTTI ◽  
S. FERRARA ◽  
L. GIRARDELLO ◽  
A. PASQUINUCCI ◽  
M. PORRATI
Keyword(s):  
Supersymmetry Breaking ◽  
Scalar Potential ◽  
Low Energy ◽  
Closed Form Expression ◽  
Physical Vacuum ◽  
Energy Limit ◽  
Form Expression ◽  
Four Dimensions ◽  
Heterotic Strings ◽  
Infinite Mass

We present the component Lagrangian for the general coupling of N=1 matter to a higher curvature four-dimensional supergravity in which the (curvature)2 terms enter the Lagrangian only through the Gauss-Bonnet and Hirzebruch invariants. This is the situation suggested by the low-energy limit of heterotic strings, after compactification to four dimensions. The model obtained from the string by SU(3)-invariant truncation of the toroidal compactification is discussed in detail. We give the closed-form expression for the scalar potential and discuss supersymmetry breaking via gaugino condensation. We show that, in this last case, the cosmological constant Λ remains exactly zero even when the higher curvature corrections are taken into account. We also discuss briefly the problem of auxiliary field propagation and show that the spurious states decouple (i.e. they get an infinite mass) on the physical vacuum with Λ=0, irrespective of whether SUSY is broken or not. Some new, stringy, developments are discussed in the last section.

scholarly journals D-TERM DYNAMICAL SUPERSYMMETRY BREAKING GENERATING SPLIT ${\mathcal N} = 2$ GAUGINO MASSES OF MIXED MAJORANA–DIRAC TYPE

2012 ◽  
Vol 27 (26) ◽  
pp. 1250159 ◽  
Author(s):  
H. ITOYAMA ◽  
NOBUHITO MARU
Keyword(s):  
Gauge Theory ◽  
Supersymmetry Breaking ◽  
Explicit Form ◽  
Tree Level ◽  
Leading Order ◽  
Gap Equation ◽  
Four Dimensions ◽  
Hartree Fock ◽  
Self Consistent ◽  
Chiral Superfields

Under a few mild assumptions, [Formula: see text] supersymmetry (SUSY) in four dimensions is shown to be spontaneously broken in a metastable vacuum in a self-consistent Hartree–Fock approximation of Bardeen–Cooper–Schrieffer/Nambu–Jona-Lasinio (BCS/NJL) type to the leading order, in the gauge theory specified by the gauge kinetic function and the superpotential of adjoint chiral superfields, in particular, that possess [Formula: see text] extended SUSY spontaneously broken to [Formula: see text] at tree level. We derive an explicit form of the gap equation, showing the existence of a nontrivial solution. The [Formula: see text] gauginos in the observable sector receive mixed Majorana–Dirac masses and are split due to both the nonvanishing 〈D0〉 and 〈F0〉 induced with 〈D0〉. It is argued that proper physical applications and assessment of the range of the validity of our framework are made possible by rendering the approximation into [Formula: see text] expansion.

Dynamical supersymmetry breaking in four dimensions and its phenomenological implications

1985 ◽  
Vol 256 ◽  
pp. 557-599 ◽  
Author(s):  
Ian Affleck ◽  
Michael Dine ◽  
Nathan Seiberg
Keyword(s):  
Supersymmetry Breaking ◽  
Four Dimensions

FACT-2 – The Frankfurt Adaptive Concentration Test

2009 ◽  
Vol 25 (2) ◽  
pp. 73-82 ◽  
Author(s):  
Frank Goldhammer ◽  
Helfried Moosbrugger ◽  
Sabine A. Krawietz
Keyword(s):  
Convergent Validity ◽  
Four Dimensions ◽  
Measurement Models ◽  
Cognitive Failures ◽  
Concentration Test ◽  
Cognitive Failures Questionnaire

The Frankfurt Adaptive Concentration Test (FACT-2) requires discrimination between geometric target and nontarget items as quickly and accurately as possible. Three forms of the FACT-2 were constructed, namely FACT-I, FACT-S, and FACT-SR. The aim of the present study was to investigate the convergent validity of the FACT-SR with self-reported cognitive failures. The FACT-SR and the Cognitive Failures Questionnaire (CFQ) were completed by 191 participants. The measurement models confirmed the concentration performance, concentration accuracy, and concentration homogeneity dimensions of FACT-SR. The four dimensions of the CFQ (i.e., memory, distractibility, blunders, and names) were not confirmed. The results showed moderate convergent validity of concentration performance, concentration accuracy, and concentration homogeneity with two CFQ dimensions, namely memory and distractibility/blunders.

The Four Dimensions Of The Catalan Model

2000 ◽  
Vol 33 (First Serie (1) ◽  
pp. 100-111
Author(s):  
Pau Piuig i Scotoni
Keyword(s):  
Four Dimensions
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