Vacuum energy in non-supersymmetric quasi-realistic heterotic-string vacua with fixed moduli

IF 4.8 2区物理与天体物理 Q2 PHYSICS, PARTICLES & FIELDS The European Physical Journal C Pub Date : 2025-02-24 DOI:10.1140/epjc/s10052-024-13733-2

Eman Basaad, Luke A. Detraux, Alonzo R. Diaz Avalos, Alon E. Faraggi, Benjamin Percival

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Abstract

Recently, Baykara et al. (The Quasicrystalline string landscape, 2024; New non-supersymmetric tachyon-free strings, 2024) discussed the existence of quasicrystalline string vacua that contain a single neutral moduli, the dilaton, and studied compactifications of the non-supersymmetric \(SO(16)\times SO(16)\) heterotic-string on these spaces. We discuss a specific class of quasi-realistic string vacua with similar properties that has been known since the late eighties and analyse the vacuum energy in several non-supersymmetric examples that correspond to compactifications of tachyon free ten dimensional vacua as well as compactifications of tachyonic ten dimensional vacua. Our analysis uses the Free Fermionic Formalism of the heterotic-string in four dimensions and employs asymmetric boundary conditions that project all the geometrical moduli by Generalised GSO projections. This methodology produces models with both positive and negative spacetime potential at one-loop.

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具有固定模的非超对称准现实异质弦真空中的真空能

最近，Baykara等人(准晶体串景观，2024；新的非超对称无速子弦，2024)讨论了包含单个中性模——膨胀子的准晶体弦真空的存在性，并研究了非超对称\(SO(16)\times SO(16)\)异质弦在这些空间上的紧化。我们讨论了自八十年代末以来已知的一类具有类似性质的准现实弦真空，并分析了与无速子十维真空紧化和速子十维真空紧化相对应的几个非超对称例子中的真空能量。我们的分析使用四维异质弦的自由费米子形式，并采用非对称边界条件，通过广义GSO投影投影所有几何模。这种方法产生的模型在一个环路上既有正的也有负的时空势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

The European Physical Journal C 物理-物理：粒子与场物理

CiteScore

8.10

自引率

15.90%

发文量

1008

审稿时长

2-4 weeks

期刊介绍： Experimental Physics I: Accelerator Based High-Energy Physics Hadron and lepton collider physics Lepton-nucleon scattering High-energy nuclear reactions Standard model precision tests Search for new physics beyond the standard model Heavy flavour physics Neutrino properties Particle detector developments Computational methods and analysis tools Experimental Physics II: Astroparticle Physics Dark matter searches High-energy cosmic rays Double beta decay Long baseline neutrino experiments Neutrino astronomy Axions and other weakly interacting light particles Gravitational waves and observational cosmology Particle detector developments Computational methods and analysis tools Theoretical Physics I: Phenomenology of the Standard Model and Beyond Electroweak interactions Quantum chromo dynamics Heavy quark physics and quark flavour mixing Neutrino physics Phenomenology of astro- and cosmoparticle physics Meson spectroscopy and non-perturbative QCD Low-energy effective field theories Lattice field theory High temperature QCD and heavy ion physics Phenomenology of supersymmetric extensions of the SM Phenomenology of non-supersymmetric extensions of the SM Model building and alternative models of electroweak symmetry breaking Flavour physics beyond the SM Computational algorithms and tools...etc.