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MODULAR SYMMETRIES, THRESHOLD CORRECTIONS AND MODULI FOR Z(2)XZ(2) ORBIFOLDS
被引:28
作者:
BAILIN, D
LOVE, A
SABRA, WA
THOMAS, S
机构:
[1] UNIV LONDON,ROYAL HOLLOWAY & BEDFORD NEW COLL,DEPT PHYS,EGHAM TW20 0EX,SURREY,ENGLAND
[2] UNIV LONDON,QUEEN MARY & WESTFIELD COLL,DEPT PHYS,LONDON,ENGLAND
关键词:
D O I:
10.1142/S0217732395000375
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
Z(2) x Z(2) Coxeter orbifolds are constructed with the property that some twisted sectors have fixed planes for which the six-torus cannot be decomposed into a direct sum T-2 circle plus T-4 with the fixed plane lying in T-2. The string loop threshold corrections to the gauge coupling constants are derived, and display symmetry groups for the T and U moduli that are subgroups of the full modular group PSL(2, Z). The effective potential for duality invariant gaugino condensate in the presence of hidden sector matter is constructed and minimized for the values of the moduli. The effect of Wilson lines on the modular symmetries is also studied.
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页码:337 / 346
页数:10
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