When matching matters: Loop effects in Higgs effective theory

Freitas Ayres; Lopez-Val David; Plehn Tilman

首页> 外文期刊>Physical review, D >When matching matters: Loop effects in Higgs effective theory

【24h】

When matching matters: Loop effects in Higgs effective theory

机译：

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

Effective Lagrangians are a useful tool for a data-driven approach to physics beyond the Standard Model at the LHC. However, for the new physics scales accessible at the LHC, the effective operator expansion is only relatively slowly converging at best. For tree-level processes, it has been found that the agreement between the effective Lagrangian and a range of UV-complete models depends sensitively on the appropriate definition of the matching. We extend this analysis to the one-loop level, which is relevant for electroweak precision data and Higgs decay to photons. We show that near the scale of electroweak symmetry breaking the validity of the effective theory description can be systematically improved through an appropriate matching procedure. In particular, we find a significant increase in accuracy when including suitable terms suppressed by the Higgs vacuum expectation value in the matching.

著录项

来源
《Physical review, D》 |2016年第9期|共20页
作者
Freitas Ayres; Lopez-Val David; Plehn Tilman;
展开▼
作者单位

Univ Pittsburgh, Dept Phys & Astron, PITT PACC, Pittsburgh, PA 15260 USA;

Catholic Univ Louvain, Ctr Cosmol Particle Phys & Phenomenol CP3, B-1348 Louvain La Neuve, Belgium;

Heidelberg Univ, Inst Theoret Phys, D-69120 Heidelberg, Germany;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类粒子物理学;场论;
关键词

相似文献

外文文献
中文文献

1. New Constraints on Dark Matter Effective Theories from Standard Model Loops [J] . Andreas Crivellin, Francesco DEramo, Massimiliano Procura Physical review letters . 2014,第26期

机译：New Constraints on Dark Matter Effective Theories from Standard Model Loops
2. Higgs-mass dependence of the effective electroweak mixing angle sin(2) theta(eff) at the two-loop level [J] . Hollik W, Meier U, Uccirati S Physics Letters, B. Nuclear Physics and High Energy Physics . 2006,第6期

机译：Higgs-mass dependence of the effective electroweak mixing angle sin(2) theta(eff) at the two-loop level
3. Two-loop effective potential calculation of the lightest CP-even Higgs-boson mass in the MSSM [J] . Ren-Jie Zhang Physics Letters, B. Nuclear Physics and High Energy Physics . 1999,第2期

机译：Two-loop effective potential calculation of the lightest CP-even Higgs-boson mass in the MSSM
4. ${}^{\ \ \ 6}_{\Lambda\Lambda} He$ in cluster effective field theory [O] . Ando, Shung-Ichi, Oh, Yongseok 2014

机译：$ {} ^ {\ \ \ 6} _ {\ Lambda \ Lambda} He $ in cluster effective field theory

When matching matters: Loop effects in Higgs effective theory

摘要

著录项

相似文献

相关主题

期刊订阅