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Related papers: A landscape solution to the SUSY flavor and CP pro…

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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 super-renormalizable terms scan while renormalizable terms do…

High Energy Physics - Phenomenology · Physics 2020-10-21 Howard Baer , Vernon Barger , Shadman Salam , Dibyashree Sengupta

Predictions for the scale of SUSY breaking from the string landscape go back at least a decade to the work of Denef and Douglas on the statistics of flux vacua. The assumption that an assortment of SUSY breaking F and D terms are present in…

High Energy Physics - Phenomenology · Physics 2018-04-04 Howard Baer , Vernon Barger , Hasan Serce , Kuver Sinha

In supersymmetric models where the superpotential mu term is generated with mu<< m_{soft} (e.g. from radiative Peccei-Quinn symmetry breaking or compactified string models with sequestration and stabilized moduli), and where the string…

High Energy Physics - Phenomenology · Physics 2016-06-22 Howard Baer , Vernon Barger , Michael Savoy , Hasan Serce

Perturbative supersymmetry breaking on the landscape of string vacua is expected to favor large soft terms as a power-law or log distribution, but tempered by an anthropic veto of inappropriate vacua or vacua leading to too large a value…

High Energy Physics - Phenomenology · Physics 2022-01-05 Howard Baer , Vernon Barger , Shadman Salam , Hasan Serce

In this mini-review, we summarize a variety of findings pertaining to consequences of the landscape of string theory for supersymmetry (SUSY) phenomenology. The idea is to adopt the MSSM as the most parsimonious 4-d low energy EFT after…

High Energy Physics - Phenomenology · Physics 2022-03-01 Howard Baer , Vernon Barger , Shadman Salam , Dibyashree Sengupta

Superstring flux compactifications can stabilize all moduli while leading to an enormous number of vacua solutions, each leading to different $4-d$ laws of physics. While the string landscape provides at present the only plausible…

High Energy Physics - Phenomenology · Physics 2024-02-29 Howard Baer , Vernon Barger , Dakotah Martinez , Shadman Salam

Natural supersymmetry with light higgsinos is most likely to emerge from the string landscape since the volume of scan parameter space shrinks to tiny volumes for electroweak unnatural models. Rather general arguments favor a landscape…

High Energy Physics - Phenomenology · Physics 2024-08-06 Howard Baer , Vernon Barger , Kairui Zhang

The string theory landscape of vacua solutions provides physicists with some understanding as to the magnitude of the cosmological constant. Similar reasoning can be applied to the magnitude of the soft SUSY breaking terms in supersymmetric…

High Energy Physics - Phenomenology · Physics 2019-05-01 Howard Baer , Vernon Barger , Shadman Salam , Hasan Serce , Kuver Sinha

We consider the prospects for natural SUSY models consistent with current data. Recent constraints make the standard paradigm unnatural so we consider what could be a minimal extension consistent with what we now know. The most promising…

High Energy Physics - Phenomenology · Physics 2015-06-05 Lisa Randall , Matthew Reece

The string landscape statistical draw to large scalar soft masses leads to a mixed quasi-degeneracy/decoupling solution to the SUSY flavor and CP problems where first/second generation matter scalars lie in the 20-40 TeV range. With…

High Energy Physics - Phenomenology · Physics 2024-11-21 Howard Baer , Vernon Barger , Kairui Zhang

In string theory with flux compactifications, anthropic selection for structure formation from a discretuum of vacuum energy values provides at present our only understanding of the tiny yet positive value of the cosmological constant. We…

High Energy Physics - Phenomenology · Physics 2022-06-14 Howard Baer , Vernon Barger , Dakotah Martinez , Shadman Salam

Weak-scale supersymmetry (SUSY) is well motivated as a technically natural solution to the gauge hierarchy problem. LHC limits on superpartners, however, have sharpened the Little Hierarchy problem, raising the question of why $m_{weak} \ll…

High Energy Physics - Phenomenology · Physics 2026-01-06 Kairui Zhang

A vast array of (metastable) vacuum solutions arise from string compactifications, each leading to different 4-d laws of physics. The space of these solutions, known as the string landscape, allows for an environmental solution to the…

High Energy Physics - Phenomenology · Physics 2022-09-28 Howard Baer , Vernon Barger , Dakotah Martinez , Shadman Salam

Supersymmetric models with low electroweak finetuning are expected to be more prevalent on the string landscape than finetuned models. We assume a fertile patch of landscape vacua containing the minimal supersymmetric standard model (MSSM)…

High Energy Physics - Phenomenology · Physics 2023-07-18 Howard Baer , Vernon Barger , Juhi Dutta , Dibyashree Sengupta , Kairui Zhang

While LHC has discovered a very Standard Model-like Higgs boson of mass m_h~ 125 GeV, no solid signal for physics beyond the Standard Model has emerged so far at LHC or at WIMP seach experiments. For the case of weak scale supersymmetry…

High Energy Physics - Phenomenology · Physics 2020-12-30 Howard Baer , Vernon Barger , Shadman Salam , Dibyashree Sengupta , Kuver Sinha

A scan of soft SUSY breaking parameters within the string theory landscape with the MSSM assumed as the low energy effective field theory -- using a power-law draw to large soft terms coupled with an anthropic selection of a derived weak…

High Energy Physics - Phenomenology · Physics 2021-08-04 Howard Baer , Vernon Barger , Dibyashree Sengupta , Robert Wiley Deal

Weak scale supersymmetry (SUSY) remains a prime explanation for the radiative stability of the Higgs field. A natural account of the Higgs boson mass, however, strongly favors extensions of the Minimal Supersymmetric Standard Model (MSSM).…

High Energy Physics - Phenomenology · Physics 2017-09-13 Genevieve Belanger , Cedric Delaunay , Andreas Goudelis

At present, the Standard Model (SM) agrees with almost all collider data. Yet, three finetuning issues -- the Higgs mass problem, the strong CP problem and the cosmological constant problem -- all call for new physics. The most plausible…

High Energy Physics - Phenomenology · Physics 2024-05-03 Howard Baer

Weak scale supersymmetry (SUSY) is highly motivated in that it provides a 't Hooft technically natural solution to the gauge hierarchy problem. However, recent strong limits from superparticle searches at LHC Run 2 may exacerbate a…

High Energy Physics - Phenomenology · Physics 2025-02-18 Howard Baer , Vernon Barger , Jessica Bolich , Juhi Dutta , Dakotah Martinez , Shadman Salam , Dibyashree Sengupta , Kairui Zhang

String theory has no parameter except the string scale $M_S$, so the Planck scale $M_\text{Pl}$, the supersymmetry-breaking scale, the EW scale $m_\text{EW}$ as well as the vacuum energy density (cosmological constant) $\Lambda$ are to be…

High Energy Physics - Theory · Physics 2021-01-25 Yu-Cheng Qiu , S. -H. Henry Tye
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