Renormalons in the energy-energy correlator
Abstract The energy-energy correlator (EEC) is an observable of wide interest for collider physics and Standard Model measurements, due to both its simple theoretical description in terms of the energy-momentum tensor and its novel features for experimental studies. Significant progress has been mad...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-10-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP10(2023)187 |
| _version_ | 1827045784974000128 |
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| author | Stella T. Schindler Iain W. Stewart Zhiquan Sun |
| author_facet | Stella T. Schindler Iain W. Stewart Zhiquan Sun |
| author_sort | Stella T. Schindler |
| collection | DOAJ |
| description | Abstract The energy-energy correlator (EEC) is an observable of wide interest for collider physics and Standard Model measurements, due to both its simple theoretical description in terms of the energy-momentum tensor and its novel features for experimental studies. Significant progress has been made in both applications and higher-order perturbative predictions for the EEC. Here, we analyze the nature of the asymptotic perturbative series for the EEC by determining its analytic form in Borel space under the bubble-sum approximation. This result provides information on the leading and subleading nonperturbative power corrections through renormalon poles. We improve the perturbative convergence of the MS ¯ $$ \overline{\textrm{MS}} $$ series for the EEC by removing its leading renormalon using an MSR scheme, which is independent of the bubble-sum approximation. Using the leading MSR scheme power correction determined by fits to thrust, we find good agreement with EEC OPAL data already at O $$ \mathcal{O} $$ ( α s 2 $$ {\alpha}_s^2 $$ ). |
| first_indexed | 2024-03-08T10:17:38Z |
| format | Article |
| id | doaj.art-4af1ddfd32764b46b36150635e6f025f |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2025-02-18T14:28:43Z |
| publishDate | 2023-10-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-4af1ddfd32764b46b36150635e6f025f2024-10-28T08:02:17ZengSpringerOpenJournal of High Energy Physics1029-84792023-10-0120231012610.1007/JHEP10(2023)187Renormalons in the energy-energy correlatorStella T. Schindler0Iain W. Stewart1Zhiquan Sun2Center for Theoretical Physics, Massachusetts Institute of TechnologyCenter for Theoretical Physics, Massachusetts Institute of TechnologyCenter for Theoretical Physics, Massachusetts Institute of TechnologyAbstract The energy-energy correlator (EEC) is an observable of wide interest for collider physics and Standard Model measurements, due to both its simple theoretical description in terms of the energy-momentum tensor and its novel features for experimental studies. Significant progress has been made in both applications and higher-order perturbative predictions for the EEC. Here, we analyze the nature of the asymptotic perturbative series for the EEC by determining its analytic form in Borel space under the bubble-sum approximation. This result provides information on the leading and subleading nonperturbative power corrections through renormalon poles. We improve the perturbative convergence of the MS ¯ $$ \overline{\textrm{MS}} $$ series for the EEC by removing its leading renormalon using an MSR scheme, which is independent of the bubble-sum approximation. Using the leading MSR scheme power correction determined by fits to thrust, we find good agreement with EEC OPAL data already at O $$ \mathcal{O} $$ ( α s 2 $$ {\alpha}_s^2 $$ ).https://doi.org/10.1007/JHEP10(2023)187Effective Field Theories of QCDNonperturbative EffectsRenormalization Group |
| spellingShingle | Stella T. Schindler Iain W. Stewart Zhiquan Sun Renormalons in the energy-energy correlator Journal of High Energy Physics Effective Field Theories of QCD Nonperturbative Effects Renormalization Group |
| title | Renormalons in the energy-energy correlator |
| title_full | Renormalons in the energy-energy correlator |
| title_fullStr | Renormalons in the energy-energy correlator |
| title_full_unstemmed | Renormalons in the energy-energy correlator |
| title_short | Renormalons in the energy-energy correlator |
| title_sort | renormalons in the energy energy correlator |
| topic | Effective Field Theories of QCD Nonperturbative Effects Renormalization Group |
| url | https://doi.org/10.1007/JHEP10(2023)187 |
| work_keys_str_mv | AT stellatschindler renormalonsintheenergyenergycorrelator AT iainwstewart renormalonsintheenergyenergycorrelator AT zhiquansun renormalonsintheenergyenergycorrelator |