Non-resonant and electroweak NNLO correction to the e + e − top anti-top threshold

M. Beneke; A. Maier; T. Rauh; P. Ruiz-Femenía

doi:10.1007/JHEP02(2018)125

Non-resonant and electroweak NNLO correction to the e ⁺ e ⁻ top anti-top threshold

M. Beneke, A. Maier, T. Rauh, P. Ruiz-Femenía

Chair of Theoretical Elementary Particle Physics

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

We determine the NNLO electroweak correction to the e⁺e⁻→ bb¯ W⁺W⁻X production cross section near the top-pair production threshold. The calculation includes non-resonant production of the final state as well as electroweak effects in resonant top anti-top pair production with non-relativistic resummation, and elevates the theoretical prediction to NNNLO QCD plus NNLO electroweak accuracy. We then study the impact of the new contributions on the top-pair threshold scan at a future lepton collider.

Original language	English
Article number	125
Journal	Journal of High Energy Physics
Volume	2018
Issue number	2
DOIs	https://doi.org/10.1007/JHEP02(2018)125
State	Published - 1 Feb 2018

Keywords

Effective Field Theories
Heavy Quark Physics
Perturbative QCD
Quark Masses and SM Parameters

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10.1007/JHEP02(2018)125

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abstract = "We determine the NNLO electroweak correction to the e+e−→ bb¯ W+W−X production cross section near the top-pair production threshold. The calculation includes non-resonant production of the final state as well as electroweak effects in resonant top anti-top pair production with non-relativistic resummation, and elevates the theoretical prediction to NNNLO QCD plus NNLO electroweak accuracy. We then study the impact of the new contributions on the top-pair threshold scan at a future lepton collider.",

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AU - Beneke, M.

AU - Maier, A.

AU - Rauh, T.

AU - Ruiz-Femenía, P.

PY - 2018/2/1

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N2 - We determine the NNLO electroweak correction to the e+e−→ bb¯ W+W−X production cross section near the top-pair production threshold. The calculation includes non-resonant production of the final state as well as electroweak effects in resonant top anti-top pair production with non-relativistic resummation, and elevates the theoretical prediction to NNNLO QCD plus NNLO electroweak accuracy. We then study the impact of the new contributions on the top-pair threshold scan at a future lepton collider.

AB - We determine the NNLO electroweak correction to the e+e−→ bb¯ W+W−X production cross section near the top-pair production threshold. The calculation includes non-resonant production of the final state as well as electroweak effects in resonant top anti-top pair production with non-relativistic resummation, and elevates the theoretical prediction to NNNLO QCD plus NNLO electroweak accuracy. We then study the impact of the new contributions on the top-pair threshold scan at a future lepton collider.

KW - Effective Field Theories

KW - Heavy Quark Physics

KW - Perturbative QCD

KW - Quark Masses and SM Parameters

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JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 2

M1 - 125

ER -

Non-resonant and electroweak NNLO correction to the e ⁺ e ⁻ top anti-top threshold

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Keywords

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