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Precision Probes of QCD at High Energies
New physics, that is too heavy to be produced directly, can leave measurable imprints on the tails of kinematic distributions at the LHC. We use energetic QCD processes to perform novel measurements of the Standard Model (SM) Effective Field Theory. We show that the dijet invariant mass spectrum, an...
Autores principales: | , , , |
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Lenguaje: | eng |
Publicado: |
2017
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1007/JHEP07(2017)097 http://cds.cern.ch/record/2274055 |
_version_ | 1780955050915397632 |
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author | Alioli, Simone Farina, Marco Pappadopulo, Duccio Ruderman, Joshua T. |
author_facet | Alioli, Simone Farina, Marco Pappadopulo, Duccio Ruderman, Joshua T. |
author_sort | Alioli, Simone |
collection | CERN |
description | New physics, that is too heavy to be produced directly, can leave measurable imprints on the tails of kinematic distributions at the LHC. We use energetic QCD processes to perform novel measurements of the Standard Model (SM) Effective Field Theory. We show that the dijet invariant mass spectrum, and the inclusive jet transverse momentum spectrum, are sensitive to a dimension 6 operator that modifies the gluon propagator at high energies. The dominant effect is constructive or destructive interference with SM jet production. We compare differential next-to-leading order predictions from POWHEG to public 7 TeV jet data, including scale, PDF, and experimental uncertainties and their respective correlations. We constrain a New Physics (NP) scale of 3.5 TeV with current data. We project the reach of future 13 and 100 TeV measurements, which we estimate to be sensitive to NP scales of 8 and 60 TeV, respectively. As an application, we apply our bounds to constrain heavy vector octet colorons that couple to the QCD current. We project that effective operators will surpass bump hunts, in terms of coloron mass reach, even for sequential couplings. |
id | cern-2274055 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2017 |
record_format | invenio |
spelling | cern-22740552021-11-12T20:33:00Zdoi:10.1007/JHEP07(2017)097doi:10.1007/JHEP07(2017)097http://cds.cern.ch/record/2274055engAlioli, SimoneFarina, MarcoPappadopulo, DuccioRuderman, Joshua T.Precision Probes of QCD at High Energieshep-exParticle Physics - Experimenthep-phParticle Physics - PhenomenologyNew physics, that is too heavy to be produced directly, can leave measurable imprints on the tails of kinematic distributions at the LHC. We use energetic QCD processes to perform novel measurements of the Standard Model (SM) Effective Field Theory. We show that the dijet invariant mass spectrum, and the inclusive jet transverse momentum spectrum, are sensitive to a dimension 6 operator that modifies the gluon propagator at high energies. The dominant effect is constructive or destructive interference with SM jet production. We compare differential next-to-leading order predictions from POWHEG to public 7 TeV jet data, including scale, PDF, and experimental uncertainties and their respective correlations. We constrain a New Physics (NP) scale of 3.5 TeV with current data. We project the reach of future 13 and 100 TeV measurements, which we estimate to be sensitive to NP scales of 8 and 60 TeV, respectively. As an application, we apply our bounds to constrain heavy vector octet colorons that couple to the QCD current. We project that effective operators will surpass bump hunts, in terms of coloron mass reach, even for sequential couplings.arXiv:1706.03068CERN-TH-2017-125oai:cds.cern.ch:22740552017-06-09 |
spellingShingle | hep-ex Particle Physics - Experiment hep-ph Particle Physics - Phenomenology Alioli, Simone Farina, Marco Pappadopulo, Duccio Ruderman, Joshua T. Precision Probes of QCD at High Energies |
title | Precision Probes of QCD at High Energies |
title_full | Precision Probes of QCD at High Energies |
title_fullStr | Precision Probes of QCD at High Energies |
title_full_unstemmed | Precision Probes of QCD at High Energies |
title_short | Precision Probes of QCD at High Energies |
title_sort | precision probes of qcd at high energies |
topic | hep-ex Particle Physics - Experiment hep-ph Particle Physics - Phenomenology |
url | https://dx.doi.org/10.1007/JHEP07(2017)097 https://dx.doi.org/10.1007/JHEP07(2017)097 http://cds.cern.ch/record/2274055 |
work_keys_str_mv | AT aliolisimone precisionprobesofqcdathighenergies AT farinamarco precisionprobesofqcdathighenergies AT pappadopuloduccio precisionprobesofqcdathighenergies AT rudermanjoshuat precisionprobesofqcdathighenergies |