N-jettiness beam functions at N3LO
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 c...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-09-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP09(2020)143 |
| _version_ | 1828403173222514688 |
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| author | Markus A. Ebert Bernhard Mistlberger Gherardo Vita |
| author_facet | Markus A. Ebert Bernhard Mistlberger Gherardo Vita |
| author_sort | Markus A. Ebert |
| collection | DOAJ |
| 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 | 2024-12-10T10:14:35Z |
| format | Article |
| id | doaj.art-17cac3d9dfb24de5bb506357cbcff18c |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-10T10:14:35Z |
| publishDate | 2020-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-17cac3d9dfb24de5bb506357cbcff18c2022-12-22T01:53:02ZengSpringerOpenJournal of High Energy Physics1029-84792020-09-012020912210.1007/JHEP09(2020)143N-jettiness beam functions at N3LOMarkus A. Ebert0Bernhard Mistlberger1Gherardo Vita2Center for Theoretical Physics, Massachusetts Institute of TechnologySLAC National Accelerator Laboratory, Stanford UniversityCenter for Theoretical Physics, Massachusetts Institute of TechnologyAbstract 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.http://link.springer.com/article/10.1007/JHEP09(2020)143Perturbative QCDResummation |
| spellingShingle | Markus A. Ebert Bernhard Mistlberger Gherardo Vita N-jettiness beam functions at N3LO Journal of High Energy Physics Perturbative QCD Resummation |
| 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 |
| topic | Perturbative QCD Resummation |
| url | http://link.springer.com/article/10.1007/JHEP09(2020)143 |
| work_keys_str_mv | AT markusaebert njettinessbeamfunctionsatn3lo AT bernhardmistlberger njettinessbeamfunctionsatn3lo AT gherardovita njettinessbeamfunctionsatn3lo |