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Determining the quantum numbers of simplified models in tt¯X production at the LHC

Dolan, Matthew J.; Spannowsky, Michael; Wang, Qi; Yu, Zhao-Huan

Determining the quantum numbers of simplified models in tt¯X production at the LHC Thumbnail


Authors

Matthew J. Dolan

Qi Wang

Zhao-Huan Yu



Abstract

Simplified models provide an avenue for characterizing and exploring new physics for large classes of UV theories. In this article we study the ability of the LHC to probe the spin and parity quantum numbers of a new light resonance X which couples predominantly to the third generation quarks in a variety of simplified models through the t¯tX channel. After evaluating the LHC discovery potential for X, we suggest several kinematic variables sensitive to the spin and CP properties of the new resonance. We show how an analysis exploiting differential distributions in the semileptonic channel can discriminate among various possibilities. We find that the potential to discriminate a scalar from a pseudoscalar or (axial) vector to be particularly promising.

Citation

Dolan, M. J., Spannowsky, M., Wang, Q., & Yu, Z. (2016). Determining the quantum numbers of simplified models in tt¯X production at the LHC. Physical Review D, 94(1), Article 015025. https://doi.org/10.1103/physrevd.94.015025

Journal Article Type Article
Acceptance Date Jun 13, 2016
Online Publication Date Jul 21, 2016
Publication Date Jul 21, 2016
Deposit Date Nov 10, 2016
Publicly Available Date Mar 28, 2024
Journal Physical Review D
Print ISSN 2470-0010
Electronic ISSN 2470-0029
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 94
Issue 1
Article Number 015025
DOI https://doi.org/10.1103/physrevd.94.015025

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Copyright Statement
Reprinted with permission from the American Physical Society: Physical Review D 94, 015025 © (2016) by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.





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