Bernreuther, W., Galler, P. , Si, Z.-G. and Uwer, P. (2017) Production of heavy Higgs bosons and decay into top quarks at the LHC. II: top-quark polarization and spin correlation effects. Physical Review D, 95(9), 095012. (doi: 10.1103/PhysRevD.95.095012)
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154642.pdf - Accepted Version 1MB |
Abstract
We analyze, within several parameter scenarios of type-II two-Higgs doublet extensions of the standard model, the impact of heavy neutral Higgs-boson resonances on top-quark pair production and their subsequent decay to dileptonic final states at the LHC (13 TeV). In particular, we investigate the effects of heavy Higgs bosons on top-spin observables, that is, the longitudinal top-quark polarization and top-quark spin correlations. We take into account NLO QCD as well as weak interaction corrections and show that top-spin observables, if evaluated in judiciously chosen top-quark pair invariant mass bins, can significantly enhance the sensitivity to heavy Higgs resonances in top-quark pair events.
| Item Type: | Articles |
|---|---|
| Additional Information: | P. G. was supported by Deutsche Forschungsgemeinschaft through Graduiertenkolleg Grant No. GRK 1504. The work of Z.-G. Si was supported by National Natural Science Foundation of China and by Natural Science Foundation of Shandong Province. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Galler, Dr Peter |
| Authors: | Bernreuther, W., Galler, P., Si, Z.-G., and Uwer, P. |
| Subjects: | Q Science > QC Physics |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Research Group: | Particle Physics Theory |
| Journal Name: | Physical Review D |
| Journal Abbr.: | PRD |
| Publisher: | American Physical Society |
| ISSN: | 1550-7998 |
| ISSN (Online): | 1550-2368 |
| Published Online: | 17 May 2017 |
| Copyright Holders: | Copyright © 2017 American Physical Society |
| First Published: | First published in Physical Review D 95(9): 095012 |
| Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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