Jet mass spectra in Higgs boson plus one jet at next-to-next-to-leading logarithmic order
The invariant mass of a jet is a benchmark variable describing the structure of jets at the LHC. We calculate the jet mass spectrum for Higgs plus one jet at the LHC at next-to-next-to-leading logarithmic (NNLL) order using a factorization formula. At this order, the cross section becomes sensitive...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Physical Society
2014
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| Online Access: | http://hdl.handle.net/1721.1/84710 https://orcid.org/0000-0003-0248-0979 |
| _version_ | 1826203248232497152 |
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| author | Tackmann, Frank J. Waalewijn, Wouter J. Jouttenus, Teppo Tapani Stewart, Iain |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Tackmann, Frank J. Waalewijn, Wouter J. Jouttenus, Teppo Tapani Stewart, Iain |
| author_sort | Tackmann, Frank J. |
| collection | MIT |
| description | The invariant mass of a jet is a benchmark variable describing the structure of jets at the LHC. We calculate the jet mass spectrum for Higgs plus one jet at the LHC at next-to-next-to-leading logarithmic (NNLL) order using a factorization formula. At this order, the cross section becomes sensitive to perturbation theory at the soft m[2 over jet]/p[jet over T] scale. Our calculation is exclusive and uses the 1-jettiness global event shape to implement a veto on additional jets. The dominant dependence on the jet veto is removed by normalizing the spectrum, leaving residual dependence from nonglobal logarithms depending on the ratio of the jet mass and jet-veto variables. For our exclusive jet cross section these nonglobal logarithms are parametrically smaller than in the inclusive case, allowing us to obtain a complete NNLL result. Results for the dependence of the jet mass spectrum on the kinematics, jet algorithm, and jet size R are given. Using individual partonic channels we illustrate the difference between the jet mass spectra for quark and gluon jets. We also study the effect of hadronization and underlying event on the jet mass in PYTHIA. To highlight the similarity of inclusive and exclusive jet mass spectra, a comparison to LHC data is presented. |
| first_indexed | 2024-09-23T12:33:39Z |
| format | Article |
| id | mit-1721.1/84710 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:33:39Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/847102022-09-28T08:36:38Z Jet mass spectra in Higgs boson plus one jet at next-to-next-to-leading logarithmic order Tackmann, Frank J. Waalewijn, Wouter J. Jouttenus, Teppo Tapani Stewart, Iain Massachusetts Institute of Technology. Center for Theoretical Physics Massachusetts Institute of Technology. Department of Physics Jouttenus, Teppo Tapani Stewart, Iain The invariant mass of a jet is a benchmark variable describing the structure of jets at the LHC. We calculate the jet mass spectrum for Higgs plus one jet at the LHC at next-to-next-to-leading logarithmic (NNLL) order using a factorization formula. At this order, the cross section becomes sensitive to perturbation theory at the soft m[2 over jet]/p[jet over T] scale. Our calculation is exclusive and uses the 1-jettiness global event shape to implement a veto on additional jets. The dominant dependence on the jet veto is removed by normalizing the spectrum, leaving residual dependence from nonglobal logarithms depending on the ratio of the jet mass and jet-veto variables. For our exclusive jet cross section these nonglobal logarithms are parametrically smaller than in the inclusive case, allowing us to obtain a complete NNLL result. Results for the dependence of the jet mass spectrum on the kinematics, jet algorithm, and jet size R are given. Using individual partonic channels we illustrate the difference between the jet mass spectra for quark and gluon jets. We also study the effect of hadronization and underlying event on the jet mass in PYTHIA. To highlight the similarity of inclusive and exclusive jet mass spectra, a comparison to LHC data is presented. United States. Dept. of Energy. Office of High Energy and Nuclear Physics (Grant DE-FG02-94ER40818) United States. Dept. of Energy. Office of High Energy and Nuclear Physics (Grant DE-FG02-90ER40546) National Science Foundation (U.S.) (Grant PHY-0705682) 2014-02-07T21:02:36Z 2014-02-07T21:02:36Z 2013-09 2013-02 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/84710 Jouttenus, Teppo T., Iain W. Stewart, Frank J. Tackmann, and Wouter J. Waalewijn. “Jet mass spectra in Higgs boson plus one jet at next-to-next-to-leading logarithmic order.” Physical Review D 88, no. 5 (September 2013). © 2013 American Physical Society https://orcid.org/0000-0003-0248-0979 en_US http://dx.doi.org/10.1103/PhysRevD.88.054031 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society American Physical Society |
| spellingShingle | Tackmann, Frank J. Waalewijn, Wouter J. Jouttenus, Teppo Tapani Stewart, Iain Jet mass spectra in Higgs boson plus one jet at next-to-next-to-leading logarithmic order |
| title | Jet mass spectra in Higgs boson plus one jet at next-to-next-to-leading logarithmic order |
| title_full | Jet mass spectra in Higgs boson plus one jet at next-to-next-to-leading logarithmic order |
| title_fullStr | Jet mass spectra in Higgs boson plus one jet at next-to-next-to-leading logarithmic order |
| title_full_unstemmed | Jet mass spectra in Higgs boson plus one jet at next-to-next-to-leading logarithmic order |
| title_short | Jet mass spectra in Higgs boson plus one jet at next-to-next-to-leading logarithmic order |
| title_sort | jet mass spectra in higgs boson plus one jet at next to next to leading logarithmic order |
| url | http://hdl.handle.net/1721.1/84710 https://orcid.org/0000-0003-0248-0979 |
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