Diluting SUSY flavour problem on the Landscape

Dudas, Emilian; Lamba, Priyanka; Vempati, Sudhir K.

doi:10.1016/j.physletb.2020.135404

Cited by 3 publications

(2 citation statements)

References 63 publications

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“…More recently they have been studied, for example, in inflation [4][5][6][7][8][9][10] and in relation to naturalness problems [11][12][13][14][15][16][17]. Three-forms have been also embedded into supersymmetric models, both in global supersymmetry [18][19][20][21][22][23][24][25][26][27] and in supergravity [28][29][30][31][32][33][34][35][36][37]. In this context, JHEP05(2020)060…”

Section: Introductionmentioning

confidence: 99%

Three-forms and Fayet-Iliopoulos terms in supergravity: scanning Planck mass and BPS domain walls

Cribiori

Farakos

Tringas

2020

J. High Energ. Phys.

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We embed a new three-form vector multiplet in N = 1 supergravity and we show that it can be used to generate dynamically the Hilbert-Einstein term. We then recast the theory into the standard Freedman model and we argue that a pure Fayet-Iliopoulos term is in tension with the Weak Gravity Conjecture. Finally, we couple the three-form to a super-membrane and study BPS domain walls within matter-coupled supergravity. In these models, the Planck mass takes different values on the domain wall sides.

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Section: Introductionmentioning

confidence: 99%

Three-forms and Fayet-Iliopoulos terms in supergravity: scanning Planck mass and BPS domain walls

Cribiori

Farakos

Tringas

2020

J. High Energ. Phys.

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show abstract

“…Then the decoupling of the first two generations can avoid bounds from various experiments. The other way to avoid these bounds is to suppress flavour-violating entries to zero through some symmetries or by some flavor-suppressing SUSY breaking mechanism [31].…”

Section: Flavour Constraintsmentioning

confidence: 99%

Supersymmetry: a decade after Higgs discovery

2023

Self Cite

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Supersymmetric extensions of the Standard Model have been in vogue for over half a century. They have many interesting theoretical properties like calculability, absence of quadratic divergences , and phenomenologically impactful features like gauge coupling unification, dark matter candidates, signatures at present and future colliders, etc. A defining feature of these models is the calculability of Higgs mass in terms of a few parameters. The discovery of a Higgs particle with a mass of around 125 GeV thus has significant implications. The null results for the searches of superpartners at LHC has also put further constraints. Taken together with direct detection limits on WIMP (Weakly Interacting Massive Particle) dark matter, it appears that TeV scale supersymmetry is not realised in Nature and the theoretical expectations have reached a turning point. The present onslaught from the experiments suggests that supersymmetric models need a more complex particle structure, lagrangian and breaking patterns to be a natural solution to the hierarchy problem. We review existing models and discuss their feasibility in the current and future experimental programs.

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String landscape guide to soft SUSY breaking terms

et al. 2020

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We examine several issues pertaining to statistical predictivity of the string theory landscape for weak scale supersymmetry (SUSY). We work within a predictive landscape wherein superrenormalizable terms scan while renormalizable terms do not. We require stringy naturalness wherein the likelihood of values for observables is proportional to their frequency within a fertile patch of landscape including the minimal supersymmetric standard model as low energy effective theory with a pocket-universe value for the weak scale nearby to its measured value in our universe. In the string theory landscape, it is reasonable that the soft terms enjoy a statistical power-law draw to large values, subject to the existence of atoms as we know them (atomic principle). We argue that gaugino masses, scalar masses, and trilinear soft terms should each scan independently. In addition, the various scalars should scan independently of each other unless protected by some symmetry. The expected nonuniversality of scalar masses-once regarded as an undesirable feature-emerges as an asset within the context of the string landscape picture. In models such as heterotic compactifications on Calabi-Yau manifolds, where the tree-level gauge kinetic function depends only on the dilaton, gaugino masses may scale mildly, while scalar masses and A terms, which depend on all the moduli, may scale much more strongly leading to a landscape solution to the SUSY flavor and CP problems in spite of nondiagonal Kähler metrics. We present numerical results for Higgs and sparticle mass predictions from the landscape within the generalized mirage mediation SUSY model and discuss resulting consequences for LHC SUSY and weakly interacting massive particles dark matter searches.

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Diluting SUSY flavour problem on the Landscape

Cited by 3 publications

References 63 publications

Three-forms and Fayet-Iliopoulos terms in supergravity: scanning Planck mass and BPS domain walls

Three-forms and Fayet-Iliopoulos terms in supergravity: scanning Planck mass and BPS domain walls

Supersymmetry: a decade after Higgs discovery

String landscape guide to soft SUSY breaking terms

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