NNLL top-antitop production at threshold

Maximilian Stahlhofen; André H. Hoang

doi:10.22323/1.145.0025

NNLL top-antitop production at threshold

Maximilian Stahlhofen (Korresp. Autor*in), André H. Hoang

Teilchenphysik

Veröffentlichungen: Beitrag in Fachzeitschrift › Meeting Abstract/Conference Paper

Abstract

We present an update to the NNLL RG-improved QCD prediction of top-antitop production in electron-positron annihilation at threshold. It includes for the first time a complete NNLL resummation of ultrasoft logarithms, which are dominant at this order and give a sizable correction. The renormalization scale dependence of the total resonance cross section decreases substantially compared to earlier predictions, where the ultrasoft logarithms were included only partially.

Originalsprache	Englisch
Aufsatznummer	025
Seitenumfang	8
Fachzeitschrift	Proceedings of Science (PoS)
Jahrgang	2011
Ausgabenummer	145
DOIs	https://doi.org/10.22323/1.145.0025
Publikationsstatus	Veröffentlicht - 2011
Veranstaltung	10th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology) - Mamallapuram, Indien Dauer: 26 Sept. 2011 → 30 Sept. 2011

ÖFOS 2012

103034 Teilchenphysik

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10.22323/1.145.0025

http://arxiv.org/abs/1111.4486v2

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http://arxiv.org/abs/1111.4486v2

Zitationsweisen

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abstract = "We present an update to the NNLL RG-improved QCD prediction of top-antitop production in electron-positron annihilation at threshold. It includes for the first time a complete NNLL resummation of ultrasoft logarithms, which are dominant at this order and give a sizable correction. The renormalization scale dependence of the total resonance cross section decreases substantially compared to earlier predictions, where the ultrasoft logarithms were included only partially.",

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AB - We present an update to the NNLL RG-improved QCD prediction of top-antitop production in electron-positron annihilation at threshold. It includes for the first time a complete NNLL resummation of ultrasoft logarithms, which are dominant at this order and give a sizable correction. The renormalization scale dependence of the total resonance cross section decreases substantially compared to earlier predictions, where the ultrasoft logarithms were included only partially.

UR - http://arxiv.org/abs/1111.4486v2

U2 - 10.22323/1.145.0025

DO - 10.22323/1.145.0025

M3 - Meeting abstract/Conference paper

SN - 1824-8039

VL - 2011

JO - Proceedings of Science (PoS)

JF - Proceedings of Science (PoS)

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T2 - 10th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology)

Y2 - 26 September 2011 through 30 September 2011

ER -

NNLL top-antitop production at threshold

Abstract

ÖFOS 2012

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