Third-order correction to top-quark pair production near threshold. Part I. Effective theory set-up and matching coefficients
Abstract This is the first in a series of two papers, in which we compute the third-order QCD corrections to top-antitop production near threshold in e + e − collisions. The present paper provides a detailed outline of the strategy of computation in the framework of non-relativistic effective theory...
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| Format: | Article |
| Language: | English |
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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)273 |
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| _version_ | 1849238032021979136 |
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| author | M. Beneke Y. Kiyo K. Schuller |
| author_facet | M. Beneke Y. Kiyo K. Schuller |
| author_sort | M. Beneke |
| collection | DOAJ |
| description | Abstract This is the first in a series of two papers, in which we compute the third-order QCD corrections to top-antitop production near threshold in e + e − collisions. The present paper provides a detailed outline of the strategy of computation in the framework of non-relativistic effective theory and the threshold expansion, applicable more generally to heavy-quark pair production near threshold. It summarizes matching coefficients and potentials relevant to the next-to-next-to-next-to-leading order and ends with the master formula for the computation of the third-order Green function. The master formula is evaluated in part II of the series. |
| format | Article |
| id | doaj-art-e9b5f90c22a743d696d7c3e3b594127c |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-e9b5f90c22a743d696d7c3e3b594127c2025-08-20T04:01:47ZengSpringerOpenJournal of High Energy Physics1029-84792025-07-012025716410.1007/JHEP07(2025)273Third-order correction to top-quark pair production near threshold. Part I. Effective theory set-up and matching coefficientsM. Beneke0Y. Kiyo1K. Schuller2Physik Department T31, Technische Universität MünchenDepartment of Physics, Juntendo UniversityInstitut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen UniversityAbstract This is the first in a series of two papers, in which we compute the third-order QCD corrections to top-antitop production near threshold in e + e − collisions. The present paper provides a detailed outline of the strategy of computation in the framework of non-relativistic effective theory and the threshold expansion, applicable more generally to heavy-quark pair production near threshold. It summarizes matching coefficients and potentials relevant to the next-to-next-to-next-to-leading order and ends with the master formula for the computation of the third-order Green function. The master formula is evaluated in part II of the series.https://doi.org/10.1007/JHEP07(2025)273Effective Field Theories of QCDHigher-Order Perturbative CalculationsTop Quark |
| spellingShingle | M. Beneke Y. Kiyo K. Schuller Third-order correction to top-quark pair production near threshold. Part I. Effective theory set-up and matching coefficients Journal of High Energy Physics Effective Field Theories of QCD Higher-Order Perturbative Calculations Top Quark |
| title | Third-order correction to top-quark pair production near threshold. Part I. Effective theory set-up and matching coefficients |
| title_full | Third-order correction to top-quark pair production near threshold. Part I. Effective theory set-up and matching coefficients |
| title_fullStr | Third-order correction to top-quark pair production near threshold. Part I. Effective theory set-up and matching coefficients |
| title_full_unstemmed | Third-order correction to top-quark pair production near threshold. Part I. Effective theory set-up and matching coefficients |
| title_short | Third-order correction to top-quark pair production near threshold. Part I. Effective theory set-up and matching coefficients |
| title_sort | third order correction to top quark pair production near threshold part i effective theory set up and matching coefficients |
| topic | Effective Field Theories of QCD Higher-Order Perturbative Calculations Top Quark |
| url | https://doi.org/10.1007/JHEP07(2025)273 |
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