4.7 Article

Extra W-boson mass from a D3-brane

期刊

PHYSICS LETTERS B
卷 833, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.physletb.2022.137387

关键词

-

资金

  1. SCOAP3

向作者/读者索取更多资源

Motivated by the measurement of the W-boson mass, this study investigates string-based particle physics models that can explain the deviation from the Standard Model. By considering an F-theory GUT and utilizing a D3-brane, it is found that a correction consistent with experimental results can be obtained.
Motivated by the recent CDF measurement of the W-boson mass, we study string-based particle physics models which can accommodate this deviation from the Standard Model. We consider an F-theory GUT in which the visible sector is realized on intersecting 7-branes, and extra sector states arise from a probe D3-brane near an E-type Yukawa point. The D3-brane worldvolume naturally realizes a strongly coupled sector which mixes with the Higgs. In the limit where some extra sector states get their mass solely from Higgs vevs, this leads to a contribution to the rho parameter which is too large, but as the D3-brane is separated from the 7-brane stack, this effect is suppressed, leading to O(1) -O(10) TeV scale extra sector states and a correction to rho which would be in accord with the CDF result. We also estimate the contribution to the oblique electroweak parameter S, and find that it is compatible with existing constraints. This also leads to additional signatures, including diphoton resonances (as well as other diboson final states) in the O(1) -O(10) TeV range. (C) 2022 The Author(s). Published by Elsevier B.V.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据