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in creator/contributor: "Ramond, P."  
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Neutrinology

Description: We present various topics of theoretical and experimental interest in the search for signals of massive neutrinos. We discuss implications of massive neutrinos for model building beyond the Standard Model. We emphasize one example where the scale of lepton number breaking is linked to that of the breaking of the axion symmetry.
Date: January 1, 1991
Creator: Ramond, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Neutrinology

Description: We present various topics of theoretical and experimental interest in the search for signals of massive neutrinos. We discuss implications of massive neutrinos for model building beyond the Standard Model. We emphasize one example where the scale of lepton number breaking is linked to that of the breaking of the axion symmetry.
Date: December 31, 1991
Creator: Ramond, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Symmetric textures

Description: The Wolfenstein parametrization is extended to the quark masses in the deep ultraviolet, and an algorithm to derive symmetric textures which are compatible with existing data is developed. It is found that there are only five such textures.
Date: April 1, 1993
Creator: Ramond, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Mass and mixing angle patterns in the Standard Model and its material Supersymmetric Extension

Description: Using renormalization group techniques, we examine several interesting relations among masses and mixing angles of quarks and lepton in the Standard Model of Elementary Particle Interactions as a functionof scale. We extend the analysis to the minimal Supersymmetric Extension to determine its effect on these mass relations. For a heavy to quark, and minimal supersymmetry, most of these relations, can be made to agree at one unification scale.
Date: January 1, 1992
Creator: Ramond, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mass and mixing angle patterns in the Standard Model and its material Supersymmetric Extension

Description: Using renormalization group techniques, we examine several interesting relations among masses and mixing angles of quarks and lepton in the Standard Model of Elementary Particle Interactions as a functionof scale. We extend the analysis to the minimal Supersymmetric Extension to determine its effect on these mass relations. For a heavy to quark, and minimal supersymmetry, most of these relations, can be made to agree at one unification scale.
Date: January 1, 1992
Creator: Ramond, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Anomalous Abelian symmetry in the standard model

Description: The observed hierarchy of quark and lepton masses can be parametrized by nonrenormalizable operators with dimensions determined by an anomalous Abelian family symmetry, a gauge extension to the minimal supersymmetric standard model. Such an Abelian symmetry is generic to compactified superstring theories, with its anomalies compensated by the Green-Schwarz mechanism. If we assume these two symmetries to be the same, we find the electroweak mixing angle to be sin {sup 2}{theta}{sub {omega}} = 3/… more
Date: December 31, 1995
Creator: Ramond, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Consequences of an Abelian family symmetry

Description: The addition of an Abelian family symmetry to the Minimal Super-symmetric Standard Model reproduces the observed hierarchies of quark and lepton masses and quark mixing angles, only if it is anomalous. Green-Schwarz compensation of its anomalies requires the electroweak mixing angle to be sin{sup 2}{theta}{sub {omega}} = 3/8 at the string scale, without any assumed GUT structure, suggesting a superstring origin for the standard model. The analysis is extended to neutrino masses and the lepton m… more
Date: January 1, 1996
Creator: Ramond, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mass Hierarchies from Anomalies: A Peek Behind the Planck Curtain

Description: The masses of quarks and leptons suggest a strong hierarchical structure. We argue that their patterns can be reproduced through the introduction of a new Abelian symmetry. The data suggest that this symmetry is anomalous. We suggest that the cancellation of its anomalies occurs through the Green-Schwarz mechanism. An important check of this idea is that it links the Weinberg angle to a mass ration of the elementary fermions. The Green-Schwarz mechanism occurs naturally in many superstring comp… more
Date: May 1, 1996
Creator: Ramond, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Elementary particle physics at the University of Florida. Annual report

Description: This is the annual progress report of the University of Florida`s elementary particle physics group. The theoretical high energy physics group`s research covers a broad range of topics, including both theory and phenomenology. Present work of the experimental high energy physics group is directed toward the CLEO detector, with some effort going to B physics at Fermilab. The Axion Search project is participating in the operation of a large-scale axion detector at Lawrence Livermore National Labo… more
Date: December 1, 1995
Creator: Field, R.D.; Ramond, P.M. & Sikivie, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Anomalous U(1) and low-energy physics: the power of D-flatness and holomorphy

Description: In models with an anomalous abelian symmetry broken at a very large scale, we study which requirements to impose on the anomalous charges in order to prevent standard model fields from acquiring large vacuum expectation values. The use of holomorphic invariants to study D-flat directions for the anomalous symmetry, proves to be a very powerful tool. We find that in order to forbid unphysical configurations at that scale, the superpotential must contain many interaction terms, including the usua… more
Date: December 1, 1996
Creator: Binetruy, P.; Irges, N.; Lavignac, S. & Ramond, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Symmetric textures

Description: The Wolfenstein parametrization is extended to the quark masses in the deep ultraviolet, and an algorithm to derive symmetric textures which are compatible with existing data is developed. It is found that there are only five such textures.
Date: January 1, 1993
Creator: Ramond, P. (Florida Univ., Gainesville, FL (United States). Dept. of Physics)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Yukawa textures with an anomalous horizontal abelian symmetry

Description: The observed hierarchy of quark and lepton masses and mixings may be obtained by adding an abelian family symmetry to the Minimal Supersymmetric Model and coupling quarks and leptons to an electroweak singlet scalar field. In a large class of such models, this symmetry suffers from anomalies which must be compensated by the Green-Schwarz mechanism; this in turn fixes the electroweak mixing angle to be sin{sup 2}{theta}{sub W} = 3/8 at the string scale, without any assumed GUT structure. The ana… more
Date: January 1996
Creator: Binetruy, P.; Lavignac, S. & Ramond, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Task A: Research in theoretical elementary particle physics at the University of Florida; Annual progress report

Description: This is the Annual Progress Report of the theoretical particle theory group at the University of Florida under DoE Grant DE-FG05-86ER40272. At present our group consists of four Full Professors (Field, Ramond, Thorn, Sikivie) and three Assistant Professors (Qiu, Woodard, Kennedy). Dallas Kennedy recently joined our group increasing the Particle Theory faculty to seven. In addition, we have three postdoctoral research associates, an SSC fellow, and eight graduate students. The research of our gr… more
Date: November 1, 1993
Creator: Field, R. D.; Ramond, P. M.; Sikivie, P. & Thorn, C. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Research in theoretical elementary particle physics at the University of Florida: Task A. Annual progress report

Description: This is the Annual Progress Report of the theoretical particle theory group at the University of Florida under DOE Grant DE-FG05-86ER40272. At present our group consists of four Full Professors (Field, Ramond, Thorn, Sikivie), one Associate Professor (Woodard), and two Assistant Professors (Qiu, Kennedy). In addition, we have four postdoctoral research associates and seven graduate students. The research of our group covers a broad range of topics in theoretical high energy physics including bo… more
Date: December 1994
Creator: Field, R. D.; Ramond, P. M.; Sikivie, P. & Thorn, C. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Anomalous U(1) and low-energy physics: The power of D-flatness and holomorphy

Description: In models with an anomalous abelian symmetry broken at a very large scale, we study which requirements to impose on the anomalous charges in order to prevent standard model fields from acquiring large vacuum expectation values. The use of holomorphic invariants to study D-flat directions for the anomalous symmetry, proves to be a very powerful tool. We find that in order to forbid unphysical vacuum configurations at that scale, the superpotential must contain many interaction terms, including t… more
Date: March 1, 1997
Creator: Binetruy, P.; Irges, N.; Ramond, P. & Lavignac, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Quasi-degenerate neutrinos from an abelian family symmetry

Description: The authors show that models with an abelian family symmetry which accounts for the observed hierarchies of masses and mixings in the quark sector may also accommodate quasi-degeneracies in the neutrino mass spectrum. Such approximate degeneracies are, in this context, associated with large mixing angles. The parameters of this class of models are constrained. The authors discuss their phenomenological implications for present and foreseen neutrino experiments.
Date: December 31, 1996
Creator: Binetruy, P.; Lavignac, S.; Petcov, S. & Ramond, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fracture Toughness and Impact Properties of Laminated Metal Composites

Description: Laminated metal composites consist of alternating metal (or metal matrix composite) layers bonded together. These materials can provide fracture toughness and impact properties superior to those of the component materials. These properties are a function of component material properties, laminate architecture (volume fraction, thickness) and interface properties. Properties are compared for seven lightweight materials.
Date: March 4, 1996
Creator: Lesuer, Donald R.; Riddle, Robert A.; Gogolewski, Ramond P.; Syn, Chol K. & Cunningham, Bruce J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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