N-jettiness beam functions at N3LO
Abstract We present the first complete calculation for the quark and gluon N-jettiness ( T N...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2021
|
| Online Access: | https://hdl.handle.net/1721.1/131759 |
| _version_ | 1826196661155659776 |
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| author | Ebert, Markus A Mistlberger, Bernhard Vita, Gherardo |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Ebert, Markus A Mistlberger, Bernhard Vita, Gherardo |
| author_sort | Ebert, Markus A |
| collection | MIT |
| description | Abstract
We present the first complete calculation for the quark and gluon N-jettiness (
T
N
$$ {\mathcal{T}}_N $$
) beam functions at next-to-next-to-next-to-leading order (N3LO) in perturbative QCD. Our calculation is based on an expansion of the differential Higgs boson and Drell-Yan production cross sections about their collinear limit. This method allows us to employ cutting edge techniques for the computation of cross sections to extract the universal building blocks in question. The class of functions appearing in the matching coefficents for all channels includes iterated integrals with non-rational kernels, thus going beyond the one of harmonic polylogarithms. Our results are a key step in extending the
T
N
$$ {\mathcal{T}}_N $$
subtraction methods to N3LO, and to resum
T
N
$$ {\mathcal{T}}_N $$
distributions at N3LL′ accuracy both for quark as well as for gluon initiated processes. |
| first_indexed | 2024-09-23T10:33:07Z |
| format | Article |
| id | mit-1721.1/131759 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T10:33:07Z |
| publishDate | 2021 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1317592023-03-01T15:54:26Z N-jettiness beam functions at N3LO Ebert, Markus A Mistlberger, Bernhard Vita, Gherardo Massachusetts Institute of Technology. Center for Theoretical Physics Abstract We present the first complete calculation for the quark and gluon N-jettiness ( T N $$ {\mathcal{T}}_N $$ ) beam functions at next-to-next-to-next-to-leading order (N3LO) in perturbative QCD. Our calculation is based on an expansion of the differential Higgs boson and Drell-Yan production cross sections about their collinear limit. This method allows us to employ cutting edge techniques for the computation of cross sections to extract the universal building blocks in question. The class of functions appearing in the matching coefficents for all channels includes iterated integrals with non-rational kernels, thus going beyond the one of harmonic polylogarithms. Our results are a key step in extending the T N $$ {\mathcal{T}}_N $$ subtraction methods to N3LO, and to resum T N $$ {\mathcal{T}}_N $$ distributions at N3LL′ accuracy both for quark as well as for gluon initiated processes. 2021-09-20T17:30:09Z 2021-09-20T17:30:09Z 2020-09-22 2020-09-24T03:27:47Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/131759 Journal of High Energy Physics. 2020 Sep 22;2020(9):143 PUBLISHER_CC en https://doi.org/10.1007/JHEP09(2020)143 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Ebert, Markus A Mistlberger, Bernhard Vita, Gherardo N-jettiness beam functions at N3LO |
| title | N-jettiness beam functions at N3LO |
| title_full | N-jettiness beam functions at N3LO |
| title_fullStr | N-jettiness beam functions at N3LO |
| title_full_unstemmed | N-jettiness beam functions at N3LO |
| title_short | N-jettiness beam functions at N3LO |
| title_sort | n jettiness beam functions at n3lo |
| url | https://hdl.handle.net/1721.1/131759 |
| work_keys_str_mv | AT ebertmarkusa njettinessbeamfunctionsatn3lo AT mistlbergerbernhard njettinessbeamfunctionsatn3lo AT vitagherardo njettinessbeamfunctionsatn3lo |