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Related papers: A string landscape guide to soft SUSY breaking ter…

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We propose that the Standard Model is coupled to a sector with an enormous landscape of vacua, where only the dimensionful parameters--the vacuum energy and Higgs masses--are finely "scanned" from one vacuum to another, while dimensionless…

High Energy Physics - Theory · Physics 2007-05-23 Nima Arkani-Hamed , Savas Dimopoulos , Shamit Kachru

For the case of the MSSM and the most general form of the NMSSM (GNMSSM) we determine the reduction in the fine tuning that follows from allowing gaugino masses to be non-degenerate at the unification scale, taking account of the LHC8…

High Energy Physics - Phenomenology · Physics 2015-06-16 Anna Kaminska , Graham G. Ross , Kai Schmidt-Hoberg

Supersymmetric models with the anomaly-mediated SUSY breaking (AMSB) arose in two different settings: 1. extra-dimensional models where SUSY breaking occurred in a sequestered sector and 2. 4-d models with dynamical SUSY breaking in a…

High Energy Physics - Phenomenology · Physics 2023-12-01 Howard Baer , Vernon Barger , Jessica Bolich , Juhi Dutta , Dibyashree Sengupta

There is hope that the Large Hadron Collider (LHC) at CERN will tell us about the fate of supersymmetry at the TeVscale. Therefore we might try to identify our expectations for the discovery of SUSY, especially in the first years of…

High Energy Physics - Theory · Physics 2009-02-02 Hans Peter Nilles

We perform a likelihood analysis of the constraints from accelerator experiments and astrophysical observations on supersymmetric (SUSY) models with SU(5) boundary conditions on soft SUSY-breaking parameters at the GUT scale. The parameter…

Sparticle mass hierarchies contain significant information regarding the origin and nature of supersymmetry breaking. The hierarchical patterns are severely constrained by electroweak symmetry breaking as well as by the astrophysical and…

High Energy Physics - Phenomenology · Physics 2015-02-04 David Francescone , Sujeet Akula , Baris Altunkaynak , Pran Nath

I discuss non-trivial effects in the soft SUSY breaking terms which appear when one integrates out heavy fields. The effects exist only when the SUSY breaking terms are non-universal. They may spoil (1) the hierarchy between the weak and…

High Energy Physics - Phenomenology · Physics 2007-05-23 Hitoshi Murayama

Recent results from ATLAS gives a Higgs mass of 125.5 GeV, further constrain already highly constrained supersymmetric models such as pMSSM or CMSSM/mSUGRA. Finding potentially discoverable and non-excluded regions of model parameter space…

High Energy Physics - Phenomenology · Physics 2013-09-05 Thomas Burgess , Jan Øye Lindroos , Anna Lipniacka , Heidi Sandaker

Martin has proposed a scenario dubbed ``compressed supersymmetry'' (SUSY) where the MSSM is the effective field theory between energy scales M_{\rm weak} and M_{\rm GUT}, but with the GUT scale SU(3) gaugino mass M_3<< M_1 or M_2. As a…

High Energy Physics - Phenomenology · Physics 2014-11-18 Howard Baer , Andrew Box , Eun-Kyung Park , Xerxes Tata

If supersymmetry turns out to be a symmetry of nature at low energies, the first order of business to measure the soft breaking parameters. But one will also want to understand the symmetry, and its breaking, more microscopically. Two…

High Energy Physics - Theory · Physics 2017-08-23 Michael Dine

We discuss the parameter spaces of supersymmetry (SUSY) scenarios taking into account the improved Higgs-mass prediction provided by FeynHiggs 2.14.1. Among other improvements, this prediction incorporates three-loop renormalization-group…

High Energy Physics - Phenomenology · Physics 2019-03-27 E. Bagnaschi , H. Bahl , J. Ellis , J. Evans , T. Hahn , S. Heinemeyer , W. Hollik , K. A. Olive , S. Paßehr , H. Rzehak , I. V. Sobolev , G. Weiglein , J. Zheng

Supersymmetric non--linear $\gs$--models in four dimensions with a $D$--term potentials can sometimes have singular kinetic metric terms. As the kinetic terms of scalar fields and their chiral fermionic partners are determine by this…

High Energy Physics - Phenomenology · Physics 2010-04-05 T. S. Nyawelo

We revisit the issue of considering stochasticity of Grassmannian coordinates in N=1 superspace, which was analyzed previously by Kobakhidze {\it et al}. In this stochastic supersymmetry(SUSY) framework, the soft SUSY breaking terms of the…

High Energy Physics - Phenomenology · Physics 2013-03-14 Manimala Chakraborti , Utpal Chattopadhyay , Rohini M. Godbole

We demonstrate that some of the suggested five supergravity points for study at the LHC could be approximately derived from perturbative string theories or M-theory, but that charge and colour breaking minima would result. As a pilot study,…

High Energy Physics - Phenomenology · Physics 2007-11-27 B. C. Allanach , C. G. Lester , M. A. Parker , B. R. Webber

The landscape of low-energy effective field theories stemming from string theory is too vast for a systematic exploration. However, the meadows of the string landscape may be fertile ground for the application of machine learning…

High Energy Physics - Theory · Physics 2024-03-07 Stefano Lanza

There are many conceivable possibilities of embedding the MSSM in string theory. These proceedings describe an approach which is based on grand unification in higher dimensions. This allows one to obtain global string-derived models with…

High Energy Physics - Theory · Physics 2010-04-06 Michael Ratz

Evidence is mounting that natural supersymmetry at the weak scale is not realized in nature. On the other hand, string theory suggests that supersymmetry may be present at some energy scale, and gauge coupling unification implies that that…

High Energy Physics - Phenomenology · Physics 2015-06-11 Brian Feldstein , Tsutomu T. Yanagida

We construct models in which the SM Higgs mass scans in a landscape. This is achieved by coupling the SM to a monodromy axion field through Minkowski 3-forms. The Higgs mass scans with steps given by delta(m_H^2)= eta mu f, where mu and f…

High Energy Physics - Theory · Physics 2017-03-08 Alvaro Herraez , Luis E. Ibanez

Supersymmetry (SUSY) is an attractive extension of the Standard Model (SM) of particle physics which solves the SM hierarchy problem. Motivated by the theoretical $\mu$-term problem of the Minimal Supersymmetric Model (MSSM), the Next-to…

High Energy Physics - Phenomenology · Physics 2016-02-17 C. T. Potter

Even if SUSY is not present at the Electro-Weak scale, string theory suggests its presence at some scale M_{SS} below the string scale M_s to guarantee the absence of tachyons. We explore the possible value of M_{SS} consistent with gauge…

High Energy Physics - Phenomenology · Physics 2015-06-05 Luis E. Ibáñez , Fernando Marchesano , Diego Regalado , Irene Valenzuela
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