scholarly journals Phenomenology of supersymmetric models with a symmetry-breaking seesaw mechanism

2013 ◽  
Vol 88 (7) ◽  
Author(s):  
Lauren Pearce ◽  
Alexander Kusenko ◽  
R. D. Peccei
Keyword(s):  
Symmetry Breaking ◽  
Seesaw Mechanism ◽  
Supersymmetric Models

scholarly journals UNUSUAL HIGGS OR SUPERSYMMETRY FROM NATURAL ELECTROWEAK SYMMETRY BREAKING

2009 ◽  
Vol 24 (21) ◽  
pp. 1631-1648 ◽  
Author(s):  
RADOVAN DERMÍŠEK
Keyword(s):  
Higgs Boson ◽  
Symmetry Breaking ◽  
Electroweak Symmetry Breaking ◽  
Fine Tuning ◽  
Boson Mass ◽  
Higgs Boson Mass ◽  
Electroweak Symmetry ◽  
Supersymmetric Models ◽  
Soft Supersymmetry Breaking ◽  
Search Limit

This review provides an elementary discussion of electroweak symmetry breaking in the minimal and the next-to-minimal supersymmetric models with the focus on the fine-tuning problem — the tension between natural electroweak symmetry breaking and the direct search limit on the Higgs boson mass. Two generic solutions of the fine-tuning problem are discussed in detail: models with unusual Higgs decays; and models with unusual pattern of soft supersymmetry breaking parameters.

scholarly journals Radiative B−L symmetry breaking in supersymmetric models

2008 ◽  
Vol 665 (5) ◽  
pp. 374-377 ◽  
Author(s):  
S. Khalil ◽  
A. Masiero
Keyword(s):  
Symmetry Breaking ◽  
Supersymmetric Models

Symmetry breaking of u(6/2 j+1) supersymmetric models

1986 ◽  
Vol 27 (5) ◽  
pp. 1430-1434 ◽  
Author(s):  
M. Baake ◽  
P. Reinicke
Keyword(s):  
Symmetry Breaking ◽  
Supersymmetric Models

scholarly journals New parametrization of the seesaw mechanism and applications in supersymmetric models

2002 ◽  
Vol 66 (11) ◽  
Author(s):  
John Ellis ◽  
Junji Hisano ◽  
Martti Raidal ◽  
Yasuhiro Shimizu
Keyword(s):  
Seesaw Mechanism ◽  
Supersymmetric Models

scholarly journals Electroweak symmetry breaking in supersymmetric models with heavy scalar superpartners

2004 ◽  
Vol 598 (3-4) ◽  
pp. 252-262 ◽  
Author(s):  
Piotr H. Chankowski ◽  
Adam Falkowski ◽  
Stefan Pokorski ◽  
Jakub Wagner
Keyword(s):  
Symmetry Breaking ◽  
Electroweak Symmetry Breaking ◽  
Electroweak Symmetry ◽  
Supersymmetric Models

THE MSSM ON THE INTERVAL

2007 ◽  
Vol 22 (06) ◽  
pp. 385-398 ◽  
Author(s):  
GERO VON GERSDORFF
Keyword(s):  
Symmetry Breaking ◽  
Boundary Conditions ◽  
Electroweak Symmetry Breaking ◽  
Electroweak Symmetry ◽  
Fifth Dimension ◽  
Bulk Mass ◽  
Proposed Model ◽  
Mass Matrices ◽  
Supersymmetric Models ◽  
Mass Terms

We review electroweak symmetry breaking in supersymmetric models with a compact fifth dimension, the interval. We show how boundary conditions for hypermultiplets can be obtained dynamically by brane mass terms, and present formulas for the spectrum in the presence of general bulk mass matrices. After giving a brief overview on the literature of models, we describe in detail a recently proposed model that at energies below the compactification scale reduces to the MSSM with a very peculiar superpartner spectrum.

scholarly journals Color-octet scalars in Dirac gaugino models with broken R symmetry

2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Linda M. Carpenter ◽  
Taylor Murphy
Keyword(s):  
Large Hadron Collider ◽  
Symmetry Breaking ◽  
Supersymmetry Breaking ◽  
Cross Sections ◽  
Hadron Collider ◽  
Scalar Particle ◽  
Decay Rates ◽  
Collider Phenomenology ◽  
Color Octet ◽  
Supersymmetric Models

Abstract In this work we study the collider phenomenology of color-octet scalars (sgluons) in supersymmetric models with Dirac gaugino masses that feature an explicitly broken R symmetry (R-broken models). We construct such models by augmenting minimal R-symmetric models with a fairly general set of supersymmetric and softly supersymmetry-breaking operators that explicitly break R symmetry. We then compute the rates of all significant two-body decays and highlight new features that appear as a result of R symmetry breaking, including enhancements to extant decay rates, novel tree- and loop-level decays, and improved cross sections of single sgluon production. We demonstrate in some detail how the familiar results from minimal R-symmetric models can be obtained by restoring R symmetry. In parallel to this discussion, we explore constraints on these models from the Large Hadron Collider. We find that, in general, R symmetry breaking quantitatively affects existing limits on color-octet scalars, perhaps closing loopholes for light CP-odd (pseudoscalar) sgluons while opening one for a light CP-even (scalar) particle. Qualitatively, however, we find that — much as for minimal R-symmetric models, despite stark differences in phenomenology — scenarios with broken R symmetry and two sgluons below the TeV scale can be accommodated by existing searches.

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