On two-body and three-body spin correlations in leptonic t(t)over-barZ production and anomalous couplings at the LHC

被引：0

作者：

Rahaman, Rafiqul ^{[1
]}

机构：

[1] Harish Chandra Res Inst, CI Homi Bhabha Natl Inst, Reg Ctr Accelerator based Particle Phys, Chhatnag Rd, Prayagraj 211019, India

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2023年 / 02期

关键词：

SMEFT; Top Quark; Electroweak Precision Physics; TOP-QUARK; POLARIZATION; DECAY;

D O I：

10.1007/JHEP02(2023)077

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We study the anomalous t (t) over barZ couplings in the t (t) over barZ production in leptonic final state at the 13 TeV LHC. We use the polarizations of top quarks and Z boson, two-body and three-body spin correlations among the top quarks and Z boson, and the cross section to probe the anomalous couplings. We estimate one parameter and simultaneous limits on the couplings of the effective vertex as well as the effective operators for a set of luminosities 150 fb(-1), 300 fb(-1), 1000 fb(-1), and 3000 fb(-1). The polarizations and the spin correlations are found to be helpful on top of the cross section to better constrain the anomalous couplings.

引用

页数：33

共 22 条

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Ravina, Baptiste
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EUROPEAN PHYSICAL JOURNAL C, 2021, 81 (09):
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Worek, Malgorzata
JOURNAL OF HIGH ENERGY PHYSICS, 2022, (08):
[6] On two-body and three-body spin correlations in leptonic tt¯Z\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ t\overline{t}Z $$\end{document} production and anomalous couplings at the LHC
Rafiqul Rahaman
Journal of High Energy Physics, 2023 (2)
[7] A General T-Matrix Approach Applied to Two-Body and Three-Body Problems in Cold Atomic Gases
Cui, Xiaoling
FEW-BODY SYSTEMS, 2012, 52 (1-2) : 65 - 85
[8] A General T-Matrix Approach Applied to Two-Body and Three-Body Problems in Cold Atomic Gases
Xiaoling Cui
Few-Body Systems, 2012, 52 : 65 - 85
[9] Two-body and three-body spin substructures serve as building blocks in small spin-3 condensates
Bao, C. G.
PHYSICAL REVIEW A, 2012, 85 (04):
[10] Relativistic Faddeev 3D equations for three-body bound states without two-body t-matrices
Mohammadzadeh, M.
Radin, M.
Hadizadeh, M. R.
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, 2024, 2024 (01):

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