Constraining anomalous gluon self-interactions at the LHC: a reappraisal
(2018) In Journal of High Energy Physics 2018(7).- Abstract
- Anomalous self-interactions of non-abelian gauge fields can be described by higher dimensional operators featuring gauge-invariant combinations of the field strengths. In the case of QCD, the gluon self-interactions start to be modified at dimension six by operators of the type GGG, with G the gluon field strength tensor, possibly leading to deviations in all observables and measurements that probe strong interactions at very small distances. In this work we consider the sensitivity to the triple gluon operator of a series of observables at the LHC in di-jet, three- and multi-jet final states and heavy-quark production. We critically re-examine the robustness of long-standing as well as more recent proposals addressing issues such as the... (More)
- Anomalous self-interactions of non-abelian gauge fields can be described by higher dimensional operators featuring gauge-invariant combinations of the field strengths. In the case of QCD, the gluon self-interactions start to be modified at dimension six by operators of the type GGG, with G the gluon field strength tensor, possibly leading to deviations in all observables and measurements that probe strong interactions at very small distances. In this work we consider the sensitivity to the triple gluon operator of a series of observables at the LHC in di-jet, three- and multi-jet final states and heavy-quark production. We critically re-examine the robustness of long-standing as well as more recent proposals addressing issues such as the validity of the EFT expansion and the impact of higher order QCD corrections. Our results support the conclusion that multi-jet observables can reliably bound these anomalous interactions to the level that their impact on other key observables at the LHC, involving for example top quark and Higgs production, can be safely neglected. We also highlight the potential of using previously suggested angular observables in three-jet events at the LHC to further constrain these interactions. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/e1b9bdbd-f756-438f-83e2-f13a505c0457
- author
- Hirschi, Valentin ; Maltoni, Fabio ; Tsinikos, Ioannis LU and Vryonidou, Eleni
- organization
- publishing date
- 2018-07-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of High Energy Physics
- volume
- 2018
- issue
- 7
- publisher
- Springer
- external identifiers
-
- scopus:85050137135
- ISSN
- 1029-8479
- DOI
- 10.1007/JHEP07(2018)093
- language
- English
- LU publication?
- yes
- id
- e1b9bdbd-f756-438f-83e2-f13a505c0457
- alternative location
- http://link.springer.com/10.1007/JHEP07(2018)093
- date added to LUP
- 2019-12-01 13:54:47
- date last changed
- 2024-05-07 16:33:25
@article{e1b9bdbd-f756-438f-83e2-f13a505c0457,
abstract = {{Anomalous self-interactions of non-abelian gauge fields can be described by higher dimensional operators featuring gauge-invariant combinations of the field strengths. In the case of QCD, the gluon self-interactions start to be modified at dimension six by operators of the type GGG, with G the gluon field strength tensor, possibly leading to deviations in all observables and measurements that probe strong interactions at very small distances. In this work we consider the sensitivity to the triple gluon operator of a series of observables at the LHC in di-jet, three- and multi-jet final states and heavy-quark production. We critically re-examine the robustness of long-standing as well as more recent proposals addressing issues such as the validity of the EFT expansion and the impact of higher order QCD corrections. Our results support the conclusion that multi-jet observables can reliably bound these anomalous interactions to the level that their impact on other key observables at the LHC, involving for example top quark and Higgs production, can be safely neglected. We also highlight the potential of using previously suggested angular observables in three-jet events at the LHC to further constrain these interactions.}},
author = {{Hirschi, Valentin and Maltoni, Fabio and Tsinikos, Ioannis and Vryonidou, Eleni}},
issn = {{1029-8479}},
language = {{eng}},
month = {{07}},
number = {{7}},
publisher = {{Springer}},
series = {{Journal of High Energy Physics}},
title = {{Constraining anomalous gluon self-interactions at the LHC: a reappraisal}},
url = {{http://dx.doi.org/10.1007/JHEP07(2018)093}},
doi = {{10.1007/JHEP07(2018)093}},
volume = {{2018}},
year = {{2018}},
}