Matching coefficients in NRQCD to two-loop accuracy
| Title: | Matching coefficients in NRQCD to two-loop accuracy |
|---|---|
| Authors: | Gerlach, Marvin, Mishima, Go, Steinhauser, Matthias |
| Source: | Phys. Rev. D 100, 054016 (2019) |
| Publication Year: | 2019 |
| Collection: | High Energy Physics - Phenomenology |
| Subject Terms: | High Energy Physics - Phenomenology |
| More Details: | We consider the Lagrange density of non-relativistic Quantum Chromodynamics expanded up to order $1/m^2$, where $m$ is the heavy quark mass, and compute several matching coefficients up to two-loop order. Our results are building blocks for next-to-next-to-next-to-leading logarithmic and next-to-next-to-next-to-next-to-leading order corrections to the threshold production of top quark pairs and the decay of heavy quarkonia. We describe the techniques used for the calculation and provide analytic results for a general covariant gauge. Comment: 29 pages |
| Document Type: | Working Paper |
| DOI: | 10.1103/PhysRevD.100.054016 |
| Access URL: | http://arxiv.org/abs/1907.08227 |
| Accession Number: | edsarx.1907.08227 |
| Database: | arXiv |
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| Items | – Name: Title Label: Title Group: Ti Data: Matching coefficients in NRQCD to two-loop accuracy – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Gerlach%2C+Marvin%22">Gerlach, Marvin</searchLink><br /><searchLink fieldCode="AR" term="%22Mishima%2C+Go%22">Mishima, Go</searchLink><br /><searchLink fieldCode="AR" term="%22Steinhauser%2C+Matthias%22">Steinhauser, Matthias</searchLink> – Name: TitleSource Label: Source Group: Src Data: Phys. Rev. D 100, 054016 (2019) – Name: DatePubCY Label: Publication Year Group: Date Data: 2019 – Name: Subset Label: Collection Group: HoldingsInfo Data: High Energy Physics - Phenomenology – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22High+Energy+Physics+-+Phenomenology%22">High Energy Physics - Phenomenology</searchLink> – Name: Abstract Label: Description Group: Ab Data: We consider the Lagrange density of non-relativistic Quantum Chromodynamics expanded up to order $1/m^2$, where $m$ is the heavy quark mass, and compute several matching coefficients up to two-loop order. Our results are building blocks for next-to-next-to-next-to-leading logarithmic and next-to-next-to-next-to-next-to-leading order corrections to the threshold production of top quark pairs and the decay of heavy quarkonia. We describe the techniques used for the calculation and provide analytic results for a general covariant gauge.<br />Comment: 29 pages – Name: TypeDocument Label: Document Type Group: TypDoc Data: Working Paper – Name: DOI Label: DOI Group: ID Data: 10.1103/PhysRevD.100.054016 – Name: URL Label: Access URL Group: URL Data: <link linkTarget="URL" linkTerm="http://arxiv.org/abs/1907.08227" linkWindow="_blank">http://arxiv.org/abs/1907.08227</link> – Name: AN Label: Accession Number Group: ID Data: edsarx.1907.08227 |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1103/PhysRevD.100.054016 Subjects: – SubjectFull: High Energy Physics - Phenomenology Type: general Titles: – TitleFull: Matching coefficients in NRQCD to two-loop accuracy Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Gerlach, Marvin – PersonEntity: Name: NameFull: Mishima, Go – PersonEntity: Name: NameFull: Steinhauser, Matthias IsPartOfRelationships: – BibEntity: Dates: – D: 18 M: 07 Type: published Y: 2019 |
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