scholarly journals On the low-energy limit of superstring theories

1986 ◽  
Vol 267 (2) ◽  
pp. 365-414 ◽  
Author(s):  
J.P. Derendinger ◽  
L.E. Ibañez ◽  
H.P. Nilles
Keyword(s):  
Low Energy ◽  
Energy Limit ◽  
Superstring Theories

Relativistic charged sphere in f(G,T) gravity

2021 ◽  
pp. 2150152
Author(s):  
M. Ilyas ◽  
A. R. Athar ◽  
Bilal Masud
Keyword(s):  
Observational Data ◽  
Density Profile ◽  
Energy Momentum Tensor ◽  
Momentum Tensor ◽  
Low Energy ◽  
Charged Sphere ◽  
Energy Limit ◽  
Modified Formula ◽  
Superstring Theories ◽  
Charged Spheres

This study explores the interior geometry of static relativistic charged spheres in the background of a recently proposed modified [Formula: see text] gravity, where [Formula: see text] and [Formula: see text] are the Gauss–Bonnet (GB) invariant and trace of energy–momentum tensor, respectively. The GB gravity is the low-energy limit of superstring theories. The structures of specific relativistic charged spheres Vela [Formula: see text], [Formula: see text], and [Formula: see text] are studied in this theory of gravity. We analyzed several physical behaviors of these relativistic charged spheres with the help of observational data and investigated the various aspects like density profile, stresses, the distribution of charges, stability, etc.

NEUTRINO MASSES IN SUPERSTRING THEORIES WITH INTERMEDIATE SCALES

1988 ◽  
Vol 03 (09) ◽  
pp. 2165-2173 ◽  
Author(s):  
UTPAL SARKAR ◽  
ROBERT B. MANN
Keyword(s):  
Low Energy ◽  
Neutrino Masses ◽  
Energy Limit ◽  
Intermediate Mass ◽  
Superstring Theories

Three generation superstring models require intermediate mass scales to be consistent with perturbative unification. We study the problem of neutrino masses in theories with intermediate mass scales which can evolve in the low energy limit of superstring theories.

Quantifying the low-energy limit and spectral resolution in valence electron energy loss spectroscopy

2013 ◽  
Vol 124 ◽  
pp. 130-138 ◽  
Author(s):  
Jeffery A. Aguiar ◽  
Bryan W. Reed ◽  
Quentin M. Ramasse ◽  
Rolf Erni ◽  
Nigel D. Browning
Keyword(s):  
Energy Loss ◽  
Electron Energy ◽  
Spectral Resolution ◽  
Electron Energy Loss Spectroscopy ◽  
Valence Electron ◽  
Low Energy ◽  
Energy Limit ◽  
Electron Energy Loss

Low-Energy Limit of theσModel

1973 ◽  
Vol 7 (8) ◽  
pp. 2467-2482 ◽  
Author(s):  
G. S. Guralnik ◽  
Hung-sheng Tsao ◽  
T. F. Wong
Keyword(s):  
Low Energy ◽  
Energy Limit

Pion Production in the Low-Energy Limit

1962 ◽  
Vol 125 (5) ◽  
pp. 1771-1777 ◽  
Author(s):  
Y. S. Kim
Keyword(s):  
Pion Production ◽  
Low Energy ◽  
Energy Limit

Experimental Approach for Developing and Testing Predictive Self-Assembly Models

2009 ◽  
Author(s):  
Gary Hendrick ◽  
James Tuckerman ◽  
Mario Juha ◽  
Nathan Crane
Keyword(s):  
Self Assembly ◽  
Binding Sites ◽  
Experimental Approach ◽  
Terminal Velocity ◽  
Low Energy ◽  
Assembly Process ◽  
Process Variables ◽  
Energy Limit ◽  
Testing Methods ◽  
Substrate Binding Sites

Testing methods and apparatus for studying capillary self-assembly processes are presented. This system permits the control of key self-assembly process variables so that relationships between process rates and yields and the process variables can be tested. Part arrival energies and angles are controlled by dropping through a fluid at terminal velocity onto fixed substrate binding sites. Using this system, the assembly probability at the low energy limit is shown to match a simple area fraction relationship.

Gravitation as a Composite Particle Effect in a Unified Spinor-Isospinor Preon Field Model I

1988 ◽  
Vol 43 (4) ◽  
pp. 345-359 ◽  
Author(s):  
H. Stumpf
Keyword(s):  
Field Model ◽  
Composite Particle ◽  
Low Energy ◽  
Einstein Equations ◽  
Energy Limit ◽  
Gauge Bosons ◽  
Mapping Procedure ◽  
Effective Interactions ◽  
Effective Dynamics ◽  
Tetrad Formulation

Abstract The model is defined by a selfregularizing nonlinear preon field equation, and all observable (elementary and non-elementary) particles are assumed to be bound (quantum) states of fermionic preon fields. Electroweak gauge bosons, leptons, quarks, gluons as preon composites and their effective dynamics etc. were studied in preceding papers. In this paper gravitons are introduced as four-preon composites and their effective interactions are discussed. This discussion is performed by the application of functional quantum theory to the model under consideration and subsequent evaluation of a weak mapping procedure, both introduced in preceding papers. In the low energy limit it is demonstrated that the effective graviton dynamics lead to the complete homogeneous Einstein equations in tetrad formulation.

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