Jet-associated resonance spectroscopy

Englert, Christoph; Ferretti, Gabriele; Spannowsky, Michael

doi:10.1140/epjc/s10052-017-5416-2

Jet-associated resonance spectroscopy

Englert, Christoph; Ferretti, Gabriele; Spannowsky, Michael

Authors

Christoph Englert

Gabriele Ferretti

Professor Michael Spannowsky michael.spannowsky@durham.ac.uk
Director

Abstract

We present a model-independent study aimed at characterising the nature of possible resonances in the jetphoton 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.

Citation

Englert, C., Ferretti, G., & Spannowsky, M. (2017). Jet-associated resonance spectroscopy. The European Physical Journal C, 77(12), Article 842. https://doi.org/10.1140/epjc/s10052-017-5416-2

Journal Article Type	Article
Acceptance Date	Nov 25, 2017
Online Publication Date	Dec 7, 2017
Publication Date	Dec 1, 2017
Deposit Date	Jun 19, 2017
Publicly Available Date	Jan 4, 2018
Journal	European Physical Journal C: Particles and Fields
Print ISSN	1434-6044
Electronic ISSN	1434-6052
Publisher	SpringerOpen
Peer Reviewed	Peer Reviewed
Volume	77
Issue	12
Article Number	842
DOI	https://doi.org/10.1140/epjc/s10052-017-5416-2

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© The Author(s) 2017.
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