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规范中介中的隔离引力

Sequestered gravity in gauge mediation.

作者信息

Antoniadis Ignatios, Benakli Karim, Quiros Mariano

机构信息

Sorbonne Universités, UPMC Univ Paris 06, UMR 7589, LPTHE, 75005 Paris, France ; CNRS, UMR 7589, LPTHE, 75005 Paris, France ; Albert Einstein Center, Institute for Theoretical Physics, Bern University, Sidlestrasse 5, 3012 Bern, Switzerland.

Sorbonne Universités, UPMC Univ Paris 06, UMR 7589, LPTHE, 75005 Paris, France ; CNRS, UMR 7589, LPTHE, 75005 Paris, France.

出版信息

Eur Phys J C Part Fields. 2016;76(7):363. doi: 10.1140/epjc/s10052-016-4192-8. Epub 2016 Jul 1.

DOI:10.1140/epjc/s10052-016-4192-8
PMID:28280441
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5321401/
Abstract

We present a novel mechanism of supersymmetry breaking embeddable in string theory and simultaneously sharing the main advantages of (sequestered) gravity and gauge mediation. It is driven by a Scherk-Schwarz deformation along a compact extra dimension, transverse to a brane stack supporting the supersymmetric extension of the Standard Model. This fixes the magnitude of the gravitino mass, together with that of the gauginos of a bulk gauge group, at a scale as high as [Formula: see text] GeV. Supersymmetry breaking is mediated to the observable sector dominantly by gauge interactions using massive messengers transforming non-trivially under the bulk and Standard Model gauge groups and leading to a neutralino LSP as dark matter candidate. The Higgsino mass [Formula: see text] and soft Higgs-bilinear [Formula: see text] term could be generated at the same order of magnitude as the other soft terms by effective supergravity couplings as in the Giudice-Masiero mechanism.

摘要

我们提出了一种超对称破缺的新机制，它可嵌入弦理论中，同时兼具（隔离的）引力和规范中介的主要优点。它由沿着一个紧致额外维度的Scherk-Schwarz形变驱动，该额外维度垂直于支持标准模型超对称扩展的膜堆。这将引力微子质量的大小以及体规范群的规范微子质量的大小固定在高达[公式：见正文] GeV的尺度上。超对称破缺主要通过规范相互作用传递到可观测部分，利用在体规范群和标准模型规范群下非平凡变换的大质量信使，从而导致中性微子作为暗物质候选者的最轻超对称粒子（LSP）。希格斯微子质量[公式：见正文]和软希格斯双线性项[公式：见正文]可以通过如吉多奇 - 马西埃罗机制中的有效超引力耦合，与其他软项在同一数量级上产生。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/65955e2c0ac1/10052_2016_4192_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/746ea977d06c/10052_2016_4192_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/7dec06c96a0f/10052_2016_4192_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/2a326e7c5a43/10052_2016_4192_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/86989f15fb79/10052_2016_4192_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/8a7375c1488c/10052_2016_4192_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/4a0ed3eefee2/10052_2016_4192_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/aa79515b9f3b/10052_2016_4192_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/65955e2c0ac1/10052_2016_4192_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/746ea977d06c/10052_2016_4192_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/7dec06c96a0f/10052_2016_4192_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/2a326e7c5a43/10052_2016_4192_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/86989f15fb79/10052_2016_4192_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/8a7375c1488c/10052_2016_4192_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/4a0ed3eefee2/10052_2016_4192_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/aa79515b9f3b/10052_2016_4192_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8d9f/5321401/65955e2c0ac1/10052_2016_4192_Fig8_HTML.jpg

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