Phenomenological viability of string and M-theory scenarios

J. A. Casas; A. Ibarra; C. Muñoz

doi:10.1016/S0550-3213(99)00065-6

Phenomenological viability of string and M-theory scenarios

J. A. Casas
, A. Ibarra
, C. Muñoz

Instituto de Estructura de la Materia (IEM-CSIC)
Universidad Autónoma de Madrid

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

20 Scopus citations

Abstract

We analyze the constraints that a correct phenomenology and the absence of dangerous charge and colour breaking (CCB) minima or unbounded from below (UFB) directions impose on the parameter space of different superstring and M-theory scenarios. Namely, we analyze in detail the case where supersymmetry (SUSY) breaking is driven by non-vanishing dilaton and/or moduli F-terms in weakly and strongly coupled strings, and the specific case where the mechanism of SUSY breaking is gaugino condensation with or without the participation of non-perturbative contributions to the Kähler potential. The results indicate that, only in some small windows of the parameter space all the previous tests are successfully passed. We also discuss the impact of non-universality of the soft breaking terms on CCB/UFB bounds.

Original language	English
Pages (from-to)	67-85
Number of pages	19
Journal	Nuclear Physics, Section B
Volume	554
Issue number	1-2
DOIs	https://doi.org/10.1016/S0550-3213(99)00065-6
State	Published - 9 Aug 1999
Externally published	Yes

Keywords

Charge and color breaking
M-theory models
String models

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10.1016/S0550-3213(99)00065-6

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title = "Phenomenological viability of string and M-theory scenarios",

abstract = "We analyze the constraints that a correct phenomenology and the absence of dangerous charge and colour breaking (CCB) minima or unbounded from below (UFB) directions impose on the parameter space of different superstring and M-theory scenarios. Namely, we analyze in detail the case where supersymmetry (SUSY) breaking is driven by non-vanishing dilaton and/or moduli F-terms in weakly and strongly coupled strings, and the specific case where the mechanism of SUSY breaking is gaugino condensation with or without the participation of non-perturbative contributions to the K{\"a}hler potential. The results indicate that, only in some small windows of the parameter space all the previous tests are successfully passed. We also discuss the impact of non-universality of the soft breaking terms on CCB/UFB bounds.",

keywords = "Charge and color breaking, M-theory models, String models",

author = "Casas, \{J. A.\} and A. Ibarra and C. Mu{\~n}oz",

note = "Funding Information: The work of A. Ibarra has been supported in part by a Comunidad de Madrid grant. Funding Information: * Research supported in part by: CICYT of Spain, under contracts AEN95-0195 (JAC, AI) and AEN97-1678-E (CM); and the European Union, under contracts CHRX/CT92-0004 (JAC, AI) and ERBFMRX CT96-0090 (CM).",

year = "1999",

month = aug,

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doi = "10.1016/S0550-3213(99)00065-6",

language = "English",

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pages = "67--85",

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T1 - Phenomenological viability of string and M-theory scenarios

AU - Casas, J. A.

AU - Ibarra, A.

AU - Muñoz, C.

N1 - Funding Information: The work of A. Ibarra has been supported in part by a Comunidad de Madrid grant. Funding Information: * Research supported in part by: CICYT of Spain, under contracts AEN95-0195 (JAC, AI) and AEN97-1678-E (CM); and the European Union, under contracts CHRX/CT92-0004 (JAC, AI) and ERBFMRX CT96-0090 (CM).

PY - 1999/8/9

Y1 - 1999/8/9

N2 - We analyze the constraints that a correct phenomenology and the absence of dangerous charge and colour breaking (CCB) minima or unbounded from below (UFB) directions impose on the parameter space of different superstring and M-theory scenarios. Namely, we analyze in detail the case where supersymmetry (SUSY) breaking is driven by non-vanishing dilaton and/or moduli F-terms in weakly and strongly coupled strings, and the specific case where the mechanism of SUSY breaking is gaugino condensation with or without the participation of non-perturbative contributions to the Kähler potential. The results indicate that, only in some small windows of the parameter space all the previous tests are successfully passed. We also discuss the impact of non-universality of the soft breaking terms on CCB/UFB bounds.

AB - We analyze the constraints that a correct phenomenology and the absence of dangerous charge and colour breaking (CCB) minima or unbounded from below (UFB) directions impose on the parameter space of different superstring and M-theory scenarios. Namely, we analyze in detail the case where supersymmetry (SUSY) breaking is driven by non-vanishing dilaton and/or moduli F-terms in weakly and strongly coupled strings, and the specific case where the mechanism of SUSY breaking is gaugino condensation with or without the participation of non-perturbative contributions to the Kähler potential. The results indicate that, only in some small windows of the parameter space all the previous tests are successfully passed. We also discuss the impact of non-universality of the soft breaking terms on CCB/UFB bounds.

KW - Charge and color breaking

KW - M-theory models

KW - String models

UR - https://www.scopus.com/pages/publications/0033538797

U2 - 10.1016/S0550-3213(99)00065-6

DO - 10.1016/S0550-3213(99)00065-6

M3 - Article

AN - SCOPUS:0033538797

SN - 0550-3213

VL - 554

SP - 67

EP - 85

JO - Nuclear Physics, Section B

JF - Nuclear Physics, Section B

IS - 1-2

ER -

Phenomenological viability of string and M-theory scenarios

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Keywords

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