The top-quark pair production cross section at next-to-next-to-leading logarithmic order

Martin Beneke; Pietro Falgari; Sebastian Klein; Christian Schwinn

The top-quark pair production cross section at next-to-next-to-leading logarithmic order

Martin Beneke
, Pietro Falgari
, Sebastian Klein
, Christian Schwinn

RWTH Aachen University
the University of Utrecht
Albert-Ludwigs-Universität Freiburg

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

We present predictions for the total tt- production cross section stt- at the Tevatron and LHC, which include the resummation of soft logarithms and Coulomb singularities through next-tonext- to-leading logarithmic order, and tt- bound-state contributions. Resummation effects amount to about 8% of the next-to-leading order result at Tevatron and about 3% at LHC with 7 TeV centre-of-mass energy. They lead to a significant reduction of the theoretical uncertainty. With m_t = 173.3GeV, we find σ_tt- ^Tevatron = 7.22 _-0.47-0.55^+0.31+0.71 pb σ_tt- ^LHC = 162.6_-7.5-14.7^+7.4+15.4 pb; in good agreement with the latest experimental measurements.

Original language	English
Article number	024
Journal	Proceedings of Science
Volume	26-30-September-2011
State	Published - 2011
Externally published	Yes
Event	10th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology), RADCOR 2011 - Mamallapuram, India Duration: 26 Sep 2011 → 30 Sep 2011

Cite this

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title = "The top-quark pair production cross section at next-to-next-to-leading logarithmic order",

abstract = "We present predictions for the total tt- production cross section stt- at the Tevatron and LHC, which include the resummation of soft logarithms and Coulomb singularities through next-tonext- to-leading logarithmic order, and tt- bound-state contributions. Resummation effects amount to about 8\% of the next-to-leading order result at Tevatron and about 3\% at LHC with 7 TeV centre-of-mass energy. They lead to a significant reduction of the theoretical uncertainty. With mt = 173.3GeV, we find σtt- Tevatron = 7.22 -0.47-0.55+0.31+0.71 pb σtt- LHC = 162.6-7.5-14.7+7.4+15.4 pb; in good agreement with the latest experimental measurements.",

author = "Martin Beneke and Pietro Falgari and Sebastian Klein and Christian Schwinn",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-Non Commercial-Share Alike Licence.; 10th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology), RADCOR 2011 ; Conference date: 26-09-2011 Through 30-09-2011",

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journal = "Proceedings of Science",

issn = "1824-8039",

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TY - JOUR

T1 - The top-quark pair production cross section at next-to-next-to-leading logarithmic order

AU - Beneke, Martin

AU - Falgari, Pietro

AU - Klein, Sebastian

AU - Schwinn, Christian

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-Non Commercial-Share Alike Licence.

PY - 2011

Y1 - 2011

N2 - We present predictions for the total tt- production cross section stt- at the Tevatron and LHC, which include the resummation of soft logarithms and Coulomb singularities through next-tonext- to-leading logarithmic order, and tt- bound-state contributions. Resummation effects amount to about 8% of the next-to-leading order result at Tevatron and about 3% at LHC with 7 TeV centre-of-mass energy. They lead to a significant reduction of the theoretical uncertainty. With mt = 173.3GeV, we find σtt- Tevatron = 7.22 -0.47-0.55+0.31+0.71 pb σtt- LHC = 162.6-7.5-14.7+7.4+15.4 pb; in good agreement with the latest experimental measurements.

AB - We present predictions for the total tt- production cross section stt- at the Tevatron and LHC, which include the resummation of soft logarithms and Coulomb singularities through next-tonext- to-leading logarithmic order, and tt- bound-state contributions. Resummation effects amount to about 8% of the next-to-leading order result at Tevatron and about 3% at LHC with 7 TeV centre-of-mass energy. They lead to a significant reduction of the theoretical uncertainty. With mt = 173.3GeV, we find σtt- Tevatron = 7.22 -0.47-0.55+0.31+0.71 pb σtt- LHC = 162.6-7.5-14.7+7.4+15.4 pb; in good agreement with the latest experimental measurements.

UR - https://www.scopus.com/pages/publications/85005893658

M3 - Conference article

AN - SCOPUS:85005893658

SN - 1824-8039

VL - 26-30-September-2011

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 024

T2 - 10th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology), RADCOR 2011

Y2 - 26 September 2011 through 30 September 2011

ER -

The top-quark pair production cross section at next-to-next-to-leading logarithmic order

Abstract

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