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Physics Implications of Flat Directions in Free Fermionic Superstring Models; 2, Renormalization Group Analysis
/ Cleaver, G. (Pennsylvania U.) ; Cvetic, Mirjam (Pennsylvania U.) ; Espinosa, J.R. (CERN) ; Everett, L.L. (Michigan U.) ; Langacker, P. (Pennsylvania U.) ; Wang, J. (Pennsylvania U.)
We continue the investigation of the physics implications of a class of flat directions for a prototype quasi-realistic free fermionic string model (CHL5), building upon the results of the previous paper in which the complete mass spectrum and effective trilinear couplings of the observable sector were calculated to all orders in the superpotential. We introduce soft supersymmetry breaking mass parameters into the model, and investigate the gauge symmetry breaking patterns and the renormalization group analysis for two representative flat directions, which leave an additional $U(1)'$ as well as the SM gauge group unbroken at the string scale. [...]
hep-ph/9811355; CERN-TH-98-243; UPR-814-T; UM-TH-98-18.-
Geneva : CERN, 1999 - 38 p.
- Published in : Phys. Rev. D 59 (1999) 115003
APS Published version, local copy: PDF; Access to fulltext document: PDF; Preprint: PDF; External link: hep-ph/9811355 PDF
- Please contact the library if you need to access this document.
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Physics Implications of Flat Directions in Free Fermionic Superstring Models; 1, Mass Spectrum and Couplings
/ Cleaver, G (Dep. of Phys. and Astronomy, Univ., of Pennsylvania, Philadelphia PA, USA ; CERN) ; Cvetic, M (Dep. of Phys. and Astronomy, Univ., of Pennsylvania, Philadelphia PA, USA) ; Espinosa, J R (CERN) ; Everett, L (Dep. of Phys. and Astronomy, Univ., of Pennsylvania, Philadelphia PA, USA) ; Langacker, P G (Dep. of Phys. and Astronomy, Univ., of Pennsylvania, Philadelphia PA, USA) ; Wang, J (Dep. of Phys. and Astronomy, Univ., of Pennsylvania, Philadelphia PA, USA)
From the "top-down" approach we investigate physics implications of the class of D- and F- flat directions formed from non-Abelian singlets which are proven flat to all orders in the nonrenormalizable superpotential, for a prototype quasi-realistic free fermionic string model with the standard model gauge group and three families (CHL5). These flat directions have at least an additional U(1)' unbroken at the string scale. [...]
arXiv:hep-ph/9807479; IEM-FT-177-98; UPR-811-T; CERN-TH-98-243.-
Philadelphia, PA : Pennsylvania Univ. Dept. Phys., 1999 - 36 p.
- Published in : Phys. Rev. D 59 (1999) 55005
APS Published version, local copy: PDF; Access to fulltext document: PDF; External link: hep-ph/9807479 PDF
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Fermion Mass Textures in an M-Inspired Flipped SU(5) Model Derived from String
/ Ellis, John R. (CERN) ; Leontaris, G.K. (CERN ; Ioannina U.) ; Lola, S. (CERN) ; Nanopoulos, Dimitri V. (Texas A-M ; HARC, Woodlands ; Athens U.)
We are inspired by the facts that M-theory may reconcile the supersymmetric GUT scale with that of quantum gravity, and that it provides new avenues for low-energy supersymmetry breaking, to re-examine a flipped SU(5) model that has been derived from string and may possess an elevation to a fully-fledged M-phenomenological model. Using a complete analysis of all superpotential terms through the sixth order, we explore in this model a new flat potential direction that provides a pair of light Higgs doublets, yields realistic textures for the fermion mass matrices, and is free of R-violating interactions and dimension-five proton decay operators..
hep-ph/9711476; ACT-17-97; CERN-TH-97-336; CTP-TAMU-47-97; IOA-16-1997; IOA-97-16; CPT-TAMU-97-47; CERN-TH-97-336; ACT-1997-17.-
Geneva : CERN, 1998 - 14 p.
- Published in : Phys. Lett. B 425 (1998) 86
Access to fulltext document: PDF; Fulltext: PDF; External link: hep-ph/9711476 PDF
- Please contact the library if you need to access this document.
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The Soft Supersymmetry-Breaking Lagrangian: Theory and Applications
/ Chung, D.J.H. (CERN ; Wisconsin U., Madison) ; Everett, L.L. (Florida U. ; CERN) ; Kane, G.L. (Michigan U., MCTP) ; King, S.F. (Southampton U.) ; Lykken, Joseph D. (Fermilab) ; Wang, Lian-Tao (Wisconsin U., Madison)
After an introduction recalling the theoretical motivation for low energy (100 GeV to TeV scale) supersymmetry, this review describes the theory and experimental implications of the soft supersymmetry-breaking Lagrangian of the general minimal supersymmetric standard model (MSSM). Extensions to include neutrino masses and nonminimal theories are also discussed. [...]
hep-ph/0312378; CERN-TH-2003-182; FERMILAB-PUB-03-228-T; MCTP-03-39; SHEP-03-25; CERN-TH-2003-182; FERMILAB-Pub-2003-228-T; MCTP-2003-39; SHEP-2003-25.-
Geneva : CERN, 2005 - 275 p.
- Published in : Phys. Rep. 407 (2005) 1-203
Access to fulltext document: 0312378.figcarenariotto - PS.GZ; 0312378.figure22 - PS.GZ; 0312378 - PDF; External links: Fulltext; Fermilab Library Server (fulltext available); Fulltext
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The infrared fixed point of the top quark mass and its implications within the MSSM
/ Carena, Marcela (CERN) ; Wagner, C.E.M. (CERN)
We analyse the general features of the Higgs and supersymmetric particle spectrum associated with the infrared fixed point solution of the top quark mass in the Minimal Supersymmetric Standard Model. We consider the constraints on the mass parameters, which are derived from the condition of a proper radiative electroweak symmetry breaking in the low and moderate \tan\beta regime. [...]
hep-ph/9407208; CERN-TH-7320-94.-
Geneva : CERN, 1994 - 27 p.
- Published in : , pp. 60-84
Access to fulltext document: 9407208 - PDF; 9407208.fig1 - PS.GZ; Preprint: PDF; External link: hep-ph/9407208 PDF
In : 2nd IFT Workshop on Yukawa Couplings and their Origins, Gainesville, FL, USA, 11 - 13 Feb 1994, pp.60-84
- CERN library copies
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