IHEP OpenIR  > 理论物理室
Probing top-quark couplings indirectly at Higgs factories
Durieux, G; Gu, JY; Vryonidou, E; Zhang, C; Zhang C(张岑)
2018
Source PublicationCHINESE PHYSICS C
ISSN1674-1137
EISSN2058-6132
Volume42Issue:12Pages:123107
SubtypeArticle
AbstractWe perform a global effective-field-theory analysis to assess the combined precision of Higgs couplings, triple gauge-boson couplings, and top-quark couplings, at future circular e(+)e(-) colliders, with a focus on runs below the t (t) over bar production threshold. Deviations in the top-quark sector entering as one-loop corrections are consistently taken into account in the Higgs and diboson processes. We find that future lepton colliders running at center-of-mass energies below the t (t) over bar production threshold can still provide useful information on top-quark couplings, by measuring virtual top-quark effects. With rate and differential measurements, the indirect individual sensitivity achievable is better than at the high-luminosity LHC. However, strong correlations between the extracted top-quark and Higgs couplings are also present and lead to much weaker global constraints on top-quark couplings. This implies that a direct probe of top-quark couplings above the t (t) over bar production threshold is also helpful for the determination of Higgs and triple-gauge-boson couplings. In addition, we find that below the e(+)e(-) -> t (t) over barh production threshold, the top-quark Yukawa coupling can be determined by its loop corrections to all Higgs production and decay channels. Degeneracy with the ggh coupling can be resolved, and even a global limit is competitive with the prospects of a linear collider above the threshold. This provides an additional means of determining the top-quark Yukawa coupling indirectly at lepton colliders.
Keywordeffective field theory top quark lepton collider
DOI10.1088/1674-1137/42/12/123107
WOS KeywordANOMALIES ; BOSON
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Nuclear ; Physics, Particles & Fields
WOS IDWOS:000451430300007
CSCD IDCSCD:6375090
ADS Bibcode2018ChPhC..42l3107D
AXRIV CODE1809
inspireid1693518
Citation statistics
Cited Times:30 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/286900
Collection理论物理室
加速器中心
Corresponding AuthorZhang C(张岑)
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Corresponding Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Durieux, G,Gu, JY,Vryonidou, E,et al. Probing top-quark couplings indirectly at Higgs factories[J]. CHINESE PHYSICS C,2018,42(12):123107.
APA Durieux, G,Gu, JY,Vryonidou, E,Zhang, C,&张岑.(2018).Probing top-quark couplings indirectly at Higgs factories.CHINESE PHYSICS C,42(12),123107.
MLA Durieux, G,et al."Probing top-quark couplings indirectly at Higgs factories".CHINESE PHYSICS C 42.12(2018):123107.
Files in This Item:
File Name/Size DocType Version Access License
20181426.pdf(1194KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Durieux, G]'s Articles
[Gu, JY]'s Articles
[Vryonidou, E]'s Articles
Baidu academic
Similar articles in Baidu academic
[Durieux, G]'s Articles
[Gu, JY]'s Articles
[Vryonidou, E]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Durieux, G]'s Articles
[Gu, JY]'s Articles
[Vryonidou, E]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.