Precision DIS thrust predictions for HERA and EIC
Abstract We present predictions for the DIS 1-jettiness event shape τ 1 b $$ {\tau}_1^b $$ , or DIS thrust, using the framework of Soft Collinear Effective Theory (SCET) for factorization, resummation of large logarithms, and rigorous treatment of nonperturbative power corrections, matched to fixed-...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-07-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP07(2025)240 |
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| author | June-Haak Ee Daekyoung Kang Christopher Lee Iain W. Stewart |
| author_facet | June-Haak Ee Daekyoung Kang Christopher Lee Iain W. Stewart |
| author_sort | June-Haak Ee |
| collection | DOAJ |
| description | Abstract We present predictions for the DIS 1-jettiness event shape τ 1 b $$ {\tau}_1^b $$ , or DIS thrust, using the framework of Soft Collinear Effective Theory (SCET) for factorization, resummation of large logarithms, and rigorous treatment of nonperturbative power corrections, matched to fixed-order QCD away from the resummation region. Our predictions reach next-to-next-to-next-to-leading-logarithmic (N3LL) accuracy in resummed perturbation theory, matched to O $$ \mathcal{O} $$ ( α s 2 $$ {\alpha}_s^2 $$ ) fixed-order QCD calculations obtained using the program NLOJet++. We include a rigorous treatment of hadronization corrections, which are universal across different event shapes and kinematic variables x and Q at leading power, and supplement them with a systematic scheme to remove O $$ \mathcal{O} $$ (ΛQCD) renormalon ambiguities in their definition. The framework of SCET allows us to connect smoothly the nonperturbative, resummation, and fixed-order regions, whose relative importance varies with x and Q, and to rigorously estimate theoretical uncertainties, across a broad range of x and Q covering existing experimental results from HERA as well as expected new measurements from the upcoming Electron- Ion-Collider (EIC). Our predictions will serve as an important benchmark for the EIC program, enabling the precise determination of the QCD strong coupling α s and the universal nonperturbative first moment parameter Ω1. |
| format | Article |
| id | doaj-art-2b79f9ec4ce541fe944634d487faf0e3 |
| institution | DOAJ |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | SpringerOpen |
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| series | Journal of High Energy Physics |
| spelling | doaj-art-2b79f9ec4ce541fe944634d487faf0e32025-08-20T03:04:16ZengSpringerOpenJournal of High Energy Physics1029-84792025-07-012025716510.1007/JHEP07(2025)240Precision DIS thrust predictions for HERA and EICJune-Haak Ee0Daekyoung Kang1Christopher Lee2Iain W. Stewart3Theoretical Division, Los Alamos National LaboratoryKey Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan UniversityTheoretical Division, Los Alamos National LaboratoryCenter for Theoretical Physics, Massachusetts Institute of TechnologyAbstract We present predictions for the DIS 1-jettiness event shape τ 1 b $$ {\tau}_1^b $$ , or DIS thrust, using the framework of Soft Collinear Effective Theory (SCET) for factorization, resummation of large logarithms, and rigorous treatment of nonperturbative power corrections, matched to fixed-order QCD away from the resummation region. Our predictions reach next-to-next-to-next-to-leading-logarithmic (N3LL) accuracy in resummed perturbation theory, matched to O $$ \mathcal{O} $$ ( α s 2 $$ {\alpha}_s^2 $$ ) fixed-order QCD calculations obtained using the program NLOJet++. We include a rigorous treatment of hadronization corrections, which are universal across different event shapes and kinematic variables x and Q at leading power, and supplement them with a systematic scheme to remove O $$ \mathcal{O} $$ (ΛQCD) renormalon ambiguities in their definition. The framework of SCET allows us to connect smoothly the nonperturbative, resummation, and fixed-order regions, whose relative importance varies with x and Q, and to rigorously estimate theoretical uncertainties, across a broad range of x and Q covering existing experimental results from HERA as well as expected new measurements from the upcoming Electron- Ion-Collider (EIC). Our predictions will serve as an important benchmark for the EIC program, enabling the precise determination of the QCD strong coupling α s and the universal nonperturbative first moment parameter Ω1.https://doi.org/10.1007/JHEP07(2025)240The Strong CouplingFactorizationRenormalization GroupResummation |
| spellingShingle | June-Haak Ee Daekyoung Kang Christopher Lee Iain W. Stewart Precision DIS thrust predictions for HERA and EIC Journal of High Energy Physics The Strong Coupling Factorization Renormalization Group Resummation |
| title | Precision DIS thrust predictions for HERA and EIC |
| title_full | Precision DIS thrust predictions for HERA and EIC |
| title_fullStr | Precision DIS thrust predictions for HERA and EIC |
| title_full_unstemmed | Precision DIS thrust predictions for HERA and EIC |
| title_short | Precision DIS thrust predictions for HERA and EIC |
| title_sort | precision dis thrust predictions for hera and eic |
| topic | The Strong Coupling Factorization Renormalization Group Resummation |
| url | https://doi.org/10.1007/JHEP07(2025)240 |
| work_keys_str_mv | AT junehaakee precisiondisthrustpredictionsforheraandeic AT daekyoungkang precisiondisthrustpredictionsforheraandeic AT christopherlee precisiondisthrustpredictionsforheraandeic AT iainwstewart precisiondisthrustpredictionsforheraandeic |