Classification of nonsupersymmetric Pati-Salam heterotic string models

Faraggi, Alon E.; Matyas, Viktor G.; Percival, Benjamin

doi:10.1103/physrevd.104.046002

Cited by 23 publications

(8 citation statements)

References 96 publications

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“…∼ 7×10 13 in principle distinct configurations with Pati-Salam gauge group. The full gauge symmetry of these configurations, aside from special cases where gauge symmetry enhancement occurs, is:…”

Section: +1mentioning

confidence: 99%

“…An important open problem in string phenomenology concerns the mechanism of spontaneous supersymmetry breaking and its physical consequences which has attracted considerable interest in recent literature [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. To this end, a tree-level analysis is insufficient for a quantitative comparison with low energy data, and the incorporation of quantum corrections to terms in the string effective action becomes a necessary yet daunting task.…”

Section: Introductionmentioning

confidence: 99%

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On nonsupersymmetric Pati-Salam string models

Rizos¹,

Florakis²,

Violaris-Gountonis³

2022

Proceedings of Corfu Summer Institute 2021 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2021)

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Section: +1mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

On nonsupersymmetric Pati-Salam string models

Rizos¹,

Florakis²,

Violaris-Gountonis³

2022

Proceedings of Corfu Summer Institute 2021 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2021)

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“…A classification method that provides a fishing tool to extract models with specified physical properties was developed by using the free fermionic model building rules [25][26][27][28][29][30][31][32]. In ref.…”

Section: Extra Z ′ In String Derived Modelsmentioning

confidence: 99%

$Z'$s and sterile neutrinos from heterotic string models: exploring $Z'$ mass exclusion limits

Faraggi,

Guzzi

2022

Preprint

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We investigate the impact of sterile neutrinos on the decay rate of extra Z ′ s with mass in the TeV range in heterotic string derived models. We explore the impact of sterile neutrinos on the current Z ′ mass exclusion limits at the LHC, and how these bounds change when the parameter space of this specific class of models is modified. CONTENTSIntroduction 1 II. Extra Z ′ in string derived models 2 III. Neutral gauge bosons sector 3 IV. The Higgs sector 5 A. The CP-even sector 5 B. The CP-odd sector 6 C. The charged sector 6 V. The neutrino sector and sterile neutrinos 7 VI. Z ′ decay rates 8 VII. Collider signatures and Z ′ mass bounds 9 VIII. Discussion and conclusions 11 A. Rotation Matrix for the neutral gauge boson fields 12 B. Z ′ decay rates 12 1. Z ′ decay rates in W + W − and ZH 0 i 12 2. Z ′ decay rates in two Higgs bosons 12 3. Z ′ decay rates into W ± H ∓ 13 4. Z ′ decay rates into H + H − 13 References 13 I.

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“…We now proceed with a detailed investigation of the parameter space of the models utilising a computer assisted two-stage scan procedure [23,[56][57][58][59]. In this approach, we first perform a (random) scan of the configurations generated by the first 12 basis vectors in (3.1) and identify SO(10) parent configurations compatible with our search criteria.…”

Section: Application In a Class Of Pati-salam Modelsmentioning

confidence: 99%

Three-Generation Super No-Scale Models in Heterotic Superstrings

Florakis,

Rizos,

Violaris-Gountonis

2022

Preprint

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We derive the conditions for the one-loop contribution to the cosmological constant to be exponentially suppressed in a class of heterotic string compactifications with three generations of chiral matter, where supersymmetry is spontaneously broken à la Scherk-Schwarz. Using techniques of partial unfolding based on the Hecke congruence subgroup Γ 0 (2) of the modular group to extract the leading asymptotics, we show that the super no-scale condition n B = n F between the degeneracies of massless bosons n B and fermions n F in the full string spectrum is necessary but not sufficient, and needs to be supplemented by additional conditions which we identify. We use these results to construct three-generation Pati-Salam models with interesting phenomenological characteristics.

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Classification of nonsupersymmetric Pati-Salam heterotic string models

Cited by 23 publications

References 96 publications

On nonsupersymmetric Pati-Salam string models

On nonsupersymmetric Pati-Salam string models

$Z'$s and sterile neutrinos from heterotic string models: exploring $Z'$ mass exclusion limits

Three-Generation Super No-Scale Models in Heterotic Superstrings

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