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https://hdl.handle.net/2440/126156
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Type: | Journal article |
Title: | Top polarization as a probe of CP-mixing top-Higgs coupling in tjh signals |
Author: | Patrick, R. Scaffidi, A. Sharma, P. |
Citation: | Physical Review D, 2020; 101(9):093005-1-093005-6 |
Publisher: | American Physical Society |
Issue Date: | 2020 |
ISSN: | 2470-0010 2470-0029 |
Statement of Responsibility: | Riley Patrick, Andre Scaffidi, and Pankaj Sharma |
Abstract: | In this paper, we explore beyond the Standard Model top-Higgs Yukawa couplings as a function of a CP-mixing parameter ξt at the 14 TeV HL-LHC in the process pp→thj. We observe that angular variables of the decay products of the top are nontrivially sensitive to ξt. This fact is exploited in a full detector level analysis that employs machine learning techniques to optimize signal sensitivity on a suite of variables, including lepton azimuthal angle. The key result of this study is an improved projected exclusion limit on ξt even when including the realistic effects of detector smearing and a conservative estimate of systematic error. |
Rights: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP³. |
DOI: | 10.1103/PhysRevD.101.093005 |
Grant ID: | http://purl.org/au-research/grants/arc/CE110001004 |
Published version: | http://dx.doi.org/10.1103/physrevd.101.093005 |
Appears in Collections: | Aurora harvest 4 Physics publications |
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