scholarly journals Partition functions of NAHE-based free fermionic string models

2002 ◽  
Vol 544 (1-2) ◽  
pp. 207-214 ◽  
Author(s):  
Alon E. Faraggi
Keyword(s):  
Partition Functions ◽  
Fermionic String ◽  
String Models

FERMIONIC STRING MODELS AND ZN ORBIFOLDS

1989 ◽  
Vol 04 (24) ◽  
pp. 2339-2347 ◽  
Author(s):  
DAVID C. DUNBAR
Keyword(s):  
Boundary Conditions ◽  
World Sheet ◽  
Fermionic String ◽  
String Models ◽  
Special Case

It is shown that ZN orbifold models may, in special case be realised by a set world sheet fermions which have boundary conditions which are non-diagonal.

scholarly journals EXCEPTIONAL STRING: INSTANTON EXPANSIONS AND SEIBERG–WITTEN CURVE

2002 ◽  
Vol 14 (09) ◽  
pp. 913-975 ◽  
Author(s):  
KENJI MOHRI
Keyword(s):  
Modular Forms ◽  
Mirror Symmetry ◽  
Elliptic Functions ◽  
Partition Functions ◽  
String Models ◽  
Local Mirror Symmetry

We investigate instanton expansions of partition functions of several toric E-string models using local mirror symmetry and elliptic modular forms. We also develop a method to determine the Seiberg–Witten curve of E-string with the help of elliptic functions.

Construction of fermionic string models in four dimensions

1987 ◽  
Vol 288 ◽  
pp. 1-76 ◽  
Author(s):  
Hikaru Kawai ◽  
David C. Lewellen ◽  
S.-H. Henry Tye
Keyword(s):  
Four Dimensions ◽  
Fermionic String ◽  
String Models

Classification of closed-fermionic-string models

1986 ◽  
Vol 34 (12) ◽  
pp. 3794-3804 ◽  
Author(s):  
H. Kawai ◽  
D. C. Lewellen ◽  
S. -H. H. Tye
Keyword(s):  
Fermionic String ◽  
String Models

scholarly journals Construction of Four-Dimensional Fermionic String Models

1986 ◽  
Vol 57 (15) ◽  
pp. 1832-1835 ◽  
Author(s):  
Hikaru Kawai ◽  
David C. Lewellen ◽  
S. -H. Henry Tye
Keyword(s):  
Fermionic String ◽  
String Models

CONSTRUCTION OF FOUR DIMENSIONAL FERMIONIC STRING MODELS WITH A GENERALIZED SUPERCURRENT

1988 ◽  
Vol 03 (01) ◽  
pp. 279-284 ◽  
Author(s):  
HIKARU KAWAI ◽  
DAVID C. LEWELLEN ◽  
S.-H. HENRY TYE
Keyword(s):  
Spin Structure ◽  
Model Building ◽  
World Sheet ◽  
The World ◽  
Fermionic String ◽  
String Models

The spin structure construction of four-dimensional fermionic string models of the heterotic type is extended by considering a generalized form of the world-sheet super-current. The rules for model building are given and illustrated with two sets of examples: the original spin structure construction and the Z3 asymmetric orbifold.

scholarly journals Construction of Four-Dimensional Fermionic String Models

1987 ◽  
Vol 58 (4) ◽  
pp. 429-429 ◽  
Author(s):  
Hikaru Kawai ◽  
David C. Lewellen ◽  
S. -H. Henry Tye
Keyword(s):  
Fermionic String ◽  
String Models

scholarly journals A MINIMAL SUPERSTRING STANDARD MODEL I: FLAT DIRECTIONS

2001 ◽  
Vol 16 (03) ◽  
pp. 425-482 ◽  
Author(s):  
G. B. CLEAVER ◽  
A. E. FARAGGI ◽  
D. V. NANOPOULOS
Keyword(s):  
Effective Field Theory ◽  
String Model ◽  
Effective Field ◽  
Supersymmetric Model ◽  
Large Set ◽  
Exotic Particles ◽  
Exotic States ◽  
Fermionic String ◽  
String Models ◽  
Minimal Supersymmetric Model

Three family SU (3)C× SU (2)L× U (1)Y string models in several constructions generically possess two features: (i) an extra local anomalous U (1)A and (ii) numerous (often fractionally charged) exotic particles beyond those in the minimal supersymmetric model (MSSM). Recently, we demonstrated that the observable sector effective field theory of such a free fermionic string model can reduce to that of the MSSM, with the standard observable gauge group being just SU (3)C× SU (2)L× U (1)Y and the SU (3)C× SU (2)L× U (1)Y-charged spectrum of the observable sector consisting solely of the MSSM spectrum. An example of a model with this property was shown. We continue our investigation of this model by presenting a large set of different flat directions of the same model that all produce the MSSM spectrum. Our results suggest that even after imposing the conditions for the decoupling of exotic states, there may remain sufficient freedom to satisfy the remaining phenomenological constraints imposed by the observed data.

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