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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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-07-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP07(2025)273 |
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| Summary: | 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. |
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| ISSN: | 1029-8479 |