Unveiling CP property of top-Higgs coupling with graph neural networks at the LHC

doi:10.1016/j.physletb.2020.135198

ITP OpenIR > SCI期刊论文

	Ren, Jie 1,2,3; Wu, Lei 1; Yang, Jin Min 2,3,4
	Unveiling CP property of top-Higgs coupling with graph neural networks at the LHC
Source Publication	PHYSICS LETTERS B
Language	英语
Keyword	BOSON MODEL
Abstract	The top-Higgs coupling plays an important role in particle physics and cosmology. The precision measurements of this coupling can provide an insight to new physics beyond the Standard Model. In this paper, we propose to use Message Passing Neural Network (MPNN) to reveal the CP nature of top-Higgs interaction through semi-leptonic channel pp -> t(-> bl(-) v(l))(t) over bar(->(b) over bar jj)h(-> b (b) over bar). Using the test statistics constructed from the event classification probabilities given by the MPNN, we find that the pure CP-even and CP-odd components can be well distinguished at the LHC, with at most 300 fb(-1) experimental data. (C) 2020 The Authors. Published by Elsevier B.V.
	2020
ISSN	0370-2693
Volume	802 Pages:135198
Cooperation Status	国际
Subject Area	Astronomy & Astrophysics ; Physics
MOST Discipline Catalogue	Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields
DOI	10.1016/j.physletb.2020.135198
Indexed By	SCIE
Citation statistics	Cited Times:5[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.itp.ac.cn/handle/311006/27128
Collection	SCI期刊论文
Affiliation	1.Nanjing Normal Univ, Dept Phys, Nanjing 210023, Peoples R China 2.Nanjing Normal Univ, Inst Theoret Phys, Nanjing 210023, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 5.Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan
Recommended Citation GB/T 7714	Ren, Jie,Wu, Lei,Yang, Jin Min. Unveiling CP property of top-Higgs coupling with graph neural networks at the LHC[J]. PHYSICS LETTERS B,2020,802:135198.
APA	Ren, Jie,Wu, Lei,&Yang, Jin Min.(2020).Unveiling CP property of top-Higgs coupling with graph neural networks at the LHC.PHYSICS LETTERS B,802,135198.
MLA	Ren, Jie,et al."Unveiling CP property of top-Higgs coupling with graph neural networks at the LHC".PHYSICS LETTERS B 802(2020):135198.

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