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Dimension-6 Operator Analysis of the CLIC Sensitivity to New Physics
We estimate the possible accuracies of measurements at the proposed CLIC e$^{+}$ e$^{−}$ collider of Higgs and W$^{+}$ W$^{−}$ production at centre-of-mass energies up to 3 TeV, incorporating also Higgsstrahlung projections at higher energies that had not been consid-ered previously, and use them to...
Autores principales: | , , , |
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Lenguaje: | eng |
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2017
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1007/JHEP05(2017)096 http://cds.cern.ch/record/2242543 |
_version_ | 1780953270113533952 |
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author | Ellis, John Roloff, Philipp Sanz, Veronica You, Tevong |
author_facet | Ellis, John Roloff, Philipp Sanz, Veronica You, Tevong |
author_sort | Ellis, John |
collection | CERN |
description | We estimate the possible accuracies of measurements at the proposed CLIC e$^{+}$ e$^{−}$ collider of Higgs and W$^{+}$ W$^{−}$ production at centre-of-mass energies up to 3 TeV, incorporating also Higgsstrahlung projections at higher energies that had not been consid-ered previously, and use them to explore the prospective CLIC sensitivities to decoupled new physics. We present the resulting constraints on the Wilson coefficients of dimension-6 operators in a model-independent approach based on the Standard Model effective field theory (SM EFT). The higher centre-of-mass energy of CLIC, compared to other projects such as the ILC and CEPC, gives it greater sensitivity to the coefficients of some of the operators we study. We find that CLIC Higgs measurements may be sensitive to new physics scales $ \Lambda =\mathcal{O}(10) $ TeV for individual operators, reduced to $ \mathcal{O}(1) $ TeV sensitivity for a global fit marginalising over the coefficients of all contributing operators. We give some examples of the corresponding prospective constraints on specific scenarios for physics beyond the SM, including stop quarks and the dilaton/radion. |
id | cern-2242543 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2017 |
record_format | invenio |
spelling | cern-22425432021-11-12T07:19:06Zdoi:10.1007/JHEP05(2017)096http://cds.cern.ch/record/2242543engEllis, JohnRoloff, PhilippSanz, VeronicaYou, TevongDimension-6 Operator Analysis of the CLIC Sensitivity to New Physicshep-exParticle Physics - Experimenthep-phParticle Physics - PhenomenologyWe estimate the possible accuracies of measurements at the proposed CLIC e$^{+}$ e$^{−}$ collider of Higgs and W$^{+}$ W$^{−}$ production at centre-of-mass energies up to 3 TeV, incorporating also Higgsstrahlung projections at higher energies that had not been consid-ered previously, and use them to explore the prospective CLIC sensitivities to decoupled new physics. We present the resulting constraints on the Wilson coefficients of dimension-6 operators in a model-independent approach based on the Standard Model effective field theory (SM EFT). The higher centre-of-mass energy of CLIC, compared to other projects such as the ILC and CEPC, gives it greater sensitivity to the coefficients of some of the operators we study. We find that CLIC Higgs measurements may be sensitive to new physics scales $ \Lambda =\mathcal{O}(10) $ TeV for individual operators, reduced to $ \mathcal{O}(1) $ TeV sensitivity for a global fit marginalising over the coefficients of all contributing operators. We give some examples of the corresponding prospective constraints on specific scenarios for physics beyond the SM, including stop quarks and the dilaton/radion.We estimate the possible accuracies of measurements at the proposed CLIC $e^+e^-$ collider of Higgs and $W^+W^-$ production at centre-of-mass energies up to 3TeV, incorporating also Higgsstrahlung projections at higher energies that had not been considered previously, and use them to explore the prospective CLIC sensitivities to decoupled new physics. We present the resulting constraints on the Wilson coefficients of dimension-6 operators in a model-independent approach based on the Standard Model effective field theory (SM EFT). The higher centre-of-mass energy of CLIC, compared to other projects such as the ILC and CEPC, gives it greater sensitivity to the coefficients of some of the operators we study. We find that CLIC Higgs measurements may be sensitive to new physics scales $\Lambda = \mathcal{O}(10)$TeV for individual operators, reduced to $\mathcal{O}(1)$ TeV sensitivity for a global fit marginalising over the coefficients of all contributing operators. We give some examples of the corresponding prospective constraints on specific scenarios for physics beyond the SM, including stop quarks and the dilaton/radion.arXiv:1701.04804KCL-PH-TH-2017-04CERN-TH-2017-009CAVENDISH-HEP-17-01CERN-PH-TH-2017-009DAMTP-2017-01oai:cds.cern.ch:22425432017-01-17 |
spellingShingle | hep-ex Particle Physics - Experiment hep-ph Particle Physics - Phenomenology Ellis, John Roloff, Philipp Sanz, Veronica You, Tevong Dimension-6 Operator Analysis of the CLIC Sensitivity to New Physics |
title | Dimension-6 Operator Analysis of the CLIC Sensitivity to New Physics |
title_full | Dimension-6 Operator Analysis of the CLIC Sensitivity to New Physics |
title_fullStr | Dimension-6 Operator Analysis of the CLIC Sensitivity to New Physics |
title_full_unstemmed | Dimension-6 Operator Analysis of the CLIC Sensitivity to New Physics |
title_short | Dimension-6 Operator Analysis of the CLIC Sensitivity to New Physics |
title_sort | dimension-6 operator analysis of the clic sensitivity to new physics |
topic | hep-ex Particle Physics - Experiment hep-ph Particle Physics - Phenomenology |
url | https://dx.doi.org/10.1007/JHEP05(2017)096 http://cds.cern.ch/record/2242543 |
work_keys_str_mv | AT ellisjohn dimension6operatoranalysisoftheclicsensitivitytonewphysics AT roloffphilipp dimension6operatoranalysisoftheclicsensitivitytonewphysics AT sanzveronica dimension6operatoranalysisoftheclicsensitivitytonewphysics AT youtevong dimension6operatoranalysisoftheclicsensitivitytonewphysics |