Universal moduli-dependent string thresholds in Z2 × Z2 orbifolds

P. M. Petropoulos; J. Rizos

doi:10.1016/0370-2693(96)00230-4

Universal moduli-dependent string thresholds in Z₂ × Z₂ orbifolds

P. M. Petropoulos
, J. Rizos

European Organization for Nuclear Research
University of Ioannina
International School of Advanced Studies

Research output: Contribution to journal › Article › peer-review

Abstract

In the context of a recently proposed method for computing exactly string loop corrections regularized in the infra-red, we determine and calculate the universal moduli-dependent part of the threshold corrections to the gauge couplings for the symmetric Z₂ × Z₂ orbifold model. We show that these corrections decrease the unification scale of the underlying effective field theory. We also comment on the relation between this infra-red regularization scheme and other proposed methods.

Original language	English
Pages (from-to)	49-56
Number of pages	8
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	374
Issue number	1-3
DOIs	https://doi.org/10.1016/0370-2693(96)00230-4
Publication status	Published - 2 May 1996
Externally published	Yes

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10.1016/0370-2693(96)00230-4

Cite this

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title = "Universal moduli-dependent string thresholds in Z2 × Z2 orbifolds",

abstract = "In the context of a recently proposed method for computing exactly string loop corrections regularized in the infra-red, we determine and calculate the universal moduli-dependent part of the threshold corrections to the gauge couplings for the symmetric Z2 × Z2 orbifold model. We show that these corrections decrease the unification scale of the underlying effective field theory. We also comment on the relation between this infra-red regularization scheme and other proposed methods.",

author = "Petropoulos, \{P. M.\} and J. Rizos",

year = "1996",

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AU - Petropoulos, P. M.

AU - Rizos, J.

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N2 - In the context of a recently proposed method for computing exactly string loop corrections regularized in the infra-red, we determine and calculate the universal moduli-dependent part of the threshold corrections to the gauge couplings for the symmetric Z2 × Z2 orbifold model. We show that these corrections decrease the unification scale of the underlying effective field theory. We also comment on the relation between this infra-red regularization scheme and other proposed methods.

AB - In the context of a recently proposed method for computing exactly string loop corrections regularized in the infra-red, we determine and calculate the universal moduli-dependent part of the threshold corrections to the gauge couplings for the symmetric Z2 × Z2 orbifold model. We show that these corrections decrease the unification scale of the underlying effective field theory. We also comment on the relation between this infra-red regularization scheme and other proposed methods.

U2 - 10.1016/0370-2693(96)00230-4

DO - 10.1016/0370-2693(96)00230-4

M3 - Article

AN - SCOPUS:0002463228

SN - 0370-2693

VL - 374

SP - 49

EP - 56

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-3

ER -

Universal moduli-dependent string thresholds in Z2 × Z2 orbifolds

Abstract

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Universal moduli-dependent string thresholds in Z₂ × Z₂ orbifolds