Power Corrections for N-Jettiness Subtractions at O(α[subscript s])
We continue the study of power corrections for N -jettiness subtractions by analytically computing the complete next-to-leading power corrections at O(αs) for colorsinglet production. This includes all nonlogarithmic terms and all partonic channels for Drell-Yan and gluon-fusion Higgs production....
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2019
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| Online Access: | http://hdl.handle.net/1721.1/121028 https://orcid.org/0000-0003-0555-0688 https://orcid.org/0000-0003-0248-0979 |
| _version_ | 1826208025319309312 |
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| author | Moult, Ian Tackmann, Frank J. Zhu, Hua Xing Ebert, Markus Stewart, Iain W Vita, Gherardo |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Moult, Ian Tackmann, Frank J. Zhu, Hua Xing Ebert, Markus Stewart, Iain W Vita, Gherardo |
| author_sort | Moult, Ian |
| collection | MIT |
| description | We continue the study of power corrections for N -jettiness subtractions by analytically computing the complete next-to-leading power corrections at O(αs) for colorsinglet production. This includes all nonlogarithmic terms and all partonic channels for Drell-Yan and gluon-fusion Higgs production. These terms are important to further improve the numerical performance of the subtractions, and to better understand the structure of power corrections beyond their leading logarithms, in particular their universality. We emphasize the importance of computing the power corrections differential in both the invariant mass, Q, and rapidity, Y, of the color-singlet system, which is necessary to account for the rapidity dependence in the subtractions. This also clarifies apparent disagreements in the literature. Performing a detailed numerical study, we find excellent agreement of our analytic results with a previous numerical extraction. Keywords: QCD, Phenomenology |
| first_indexed | 2024-09-23T13:59:11Z |
| format | Article |
| id | mit-1721.1/121028 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:59:11Z |
| publishDate | 2019 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1210282022-10-01T18:24:14Z Power Corrections for N-Jettiness Subtractions at O(α[subscript s]) Moult, Ian Tackmann, Frank J. Zhu, Hua Xing Ebert, Markus Stewart, Iain W Vita, Gherardo Massachusetts Institute of Technology. Department of Physics Ebert, Markus Stewart, Iain W Vita, Gherardo We continue the study of power corrections for N -jettiness subtractions by analytically computing the complete next-to-leading power corrections at O(αs) for colorsinglet production. This includes all nonlogarithmic terms and all partonic channels for Drell-Yan and gluon-fusion Higgs production. These terms are important to further improve the numerical performance of the subtractions, and to better understand the structure of power corrections beyond their leading logarithms, in particular their universality. We emphasize the importance of computing the power corrections differential in both the invariant mass, Q, and rapidity, Y, of the color-singlet system, which is necessary to account for the rapidity dependence in the subtractions. This also clarifies apparent disagreements in the literature. Performing a detailed numerical study, we find excellent agreement of our analytic results with a previous numerical extraction. Keywords: QCD, Phenomenology United States. Department of Energy. Office of Nuclear Physics (Contract DE-SC0011090) United States. Department of Energy. High Energy Physics Division (Contract DE-AC02-05CH11231) Simons Foundation (Investigator Grant 327942) 2019-03-18T19:50:00Z 2019-03-18T19:50:00Z 2018-12 2018-09 2018-12-20T06:59:37Z Article http://purl.org/eprint/type/JournalArticle 1029-8479 http://hdl.handle.net/1721.1/121028 Ebert, Markus A., et al. “Power Corrections for N-Jettiness Subtractions at O(α[subscript s]).” Journal of High Energy Physics, vol. 2018, no. 12, Dec. 2018. © The Authors https://orcid.org/0000-0003-0555-0688 https://orcid.org/0000-0003-0248-0979 en https://doi.org/10.1007/JHEP12(2018)084 Journal of High Energy Physics Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Moult, Ian Tackmann, Frank J. Zhu, Hua Xing Ebert, Markus Stewart, Iain W Vita, Gherardo Power Corrections for N-Jettiness Subtractions at O(α[subscript s]) |
| title | Power Corrections for N-Jettiness Subtractions at O(α[subscript s]) |
| title_full | Power Corrections for N-Jettiness Subtractions at O(α[subscript s]) |
| title_fullStr | Power Corrections for N-Jettiness Subtractions at O(α[subscript s]) |
| title_full_unstemmed | Power Corrections for N-Jettiness Subtractions at O(α[subscript s]) |
| title_short | Power Corrections for N-Jettiness Subtractions at O(α[subscript s]) |
| title_sort | power corrections for n jettiness subtractions at o α subscript s |
| url | http://hdl.handle.net/1721.1/121028 https://orcid.org/0000-0003-0555-0688 https://orcid.org/0000-0003-0248-0979 |
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