Englert, C. , Ferretti, G. and Spannowsky, M. (2017) Jet-associated resonance spectroscopy. European Physical Journal C, 77, 842. (doi: 10.1140/epjc/s10052-017-5416-2)
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Abstract
We present a model-independent study aimed at characterising the nature of possible resonances in the jet-photon or jet-Z final state at hadron colliders. Such resonances are expected in many models of compositeness and would be a clear indication of new physics. At leading order, in the narrow width approximation, the matrix elements are parameterised by just a few constants describing the coupling of the various helicities to the resonance. We present the full structure of such amplitudes up to spin 2 and use them to simulate relevant kinematic distributions that could serve to constrain the coupling structure. This also generalises the signal generation strategy that is currently pursued by ATLAS and CMS to the most general case in the considered channels. While the determination of the P/CP properties of the interaction seems to be out of reach within this framework, there is a wealth of information to be gained about the spin of the resonance and the relative couplings of the helicities.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Englert, Professor Christoph |
| Authors: | Englert, C., Ferretti, G., and Spannowsky, M. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | European Physical Journal C |
| Publisher: | Springer |
| ISSN: | 1434-6044 |
| ISSN (Online): | 1434-6052 |
| Published Online: | 07 December 2017 |
| Copyright Holders: | Copyright © 2017 The Authors |
| First Published: | First published in European Physical Journal C 77:842 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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