Threshold expansion of massive coloured particle cross sections

M. Beneke; P. Falgari; S. Klein; C. Schwinn

doi:10.1016/j.nuclphysbps.2010.08.013

Threshold expansion of massive coloured particle cross sections

M. Beneke
, P. Falgari
, S. Klein
, C. Schwinn

RWTH Aachen University
University of Durham
Albert-Ludwigs-Universität Freiburg

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

12 Scopus citations

Abstract

Pair production of massive coloured particles in hadron collisions is accompanied by potentially large radiative corrections related to the suppression of soft gluon emission and enhanced Coulomb exchange near the production threshold. We recently developed a framework to sum both series of corrections for the partonic cross section using soft-collinear and non-relativistic effective theory. If it can be argued that the resummed cross section approximates the complete result over a significant kinematic range, an improvement of the hadronic cross section results, even when the production is not kinematically constrained to the threshold. This is discussed here for the case of top quark production.

Original language	English
Pages (from-to)	20-24
Number of pages	5
Journal	Nuclear Physics B (Proceedings Supplements)
Volume	205-206
Issue number	C
DOIs	https://doi.org/10.1016/j.nuclphysbps.2010.08.013
State	Published - Aug 2010
Externally published	Yes

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10.1016/j.nuclphysbps.2010.08.013

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title = "Threshold expansion of massive coloured particle cross sections",

abstract = "Pair production of massive coloured particles in hadron collisions is accompanied by potentially large radiative corrections related to the suppression of soft gluon emission and enhanced Coulomb exchange near the production threshold. We recently developed a framework to sum both series of corrections for the partonic cross section using soft-collinear and non-relativistic effective theory. If it can be argued that the resummed cross section approximates the complete result over a significant kinematic range, an improvement of the hadronic cross section results, even when the production is not kinematically constrained to the threshold. This is discussed here for the case of top quark production.",

author = "M. Beneke and P. Falgari and S. Klein and C. Schwinn",

note = "Funding Information: S.K. thanks S. Alekhin for useful discussions. This work has been supported in part by the DFG Sonderforschungsbereich/Transregio 9 “Comput-ergest{\"u}tzte Theoretische Teilchenphysik”.",

year = "2010",

month = aug,

doi = "10.1016/j.nuclphysbps.2010.08.013",

language = "English",

volume = "205-206",

pages = "20--24",

journal = "Nuclear Physics B (Proceedings Supplements)",

issn = "0920-5632",

publisher = "Elsevier BV",

number = "C",

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TY - JOUR

T1 - Threshold expansion of massive coloured particle cross sections

AU - Beneke, M.

AU - Falgari, P.

AU - Klein, S.

AU - Schwinn, C.

N1 - Funding Information: S.K. thanks S. Alekhin for useful discussions. This work has been supported in part by the DFG Sonderforschungsbereich/Transregio 9 “Comput-ergestützte Theoretische Teilchenphysik”.

PY - 2010/8

Y1 - 2010/8

N2 - Pair production of massive coloured particles in hadron collisions is accompanied by potentially large radiative corrections related to the suppression of soft gluon emission and enhanced Coulomb exchange near the production threshold. We recently developed a framework to sum both series of corrections for the partonic cross section using soft-collinear and non-relativistic effective theory. If it can be argued that the resummed cross section approximates the complete result over a significant kinematic range, an improvement of the hadronic cross section results, even when the production is not kinematically constrained to the threshold. This is discussed here for the case of top quark production.

AB - Pair production of massive coloured particles in hadron collisions is accompanied by potentially large radiative corrections related to the suppression of soft gluon emission and enhanced Coulomb exchange near the production threshold. We recently developed a framework to sum both series of corrections for the partonic cross section using soft-collinear and non-relativistic effective theory. If it can be argued that the resummed cross section approximates the complete result over a significant kinematic range, an improvement of the hadronic cross section results, even when the production is not kinematically constrained to the threshold. This is discussed here for the case of top quark production.

UR - https://www.scopus.com/pages/publications/78449233430

U2 - 10.1016/j.nuclphysbps.2010.08.013

DO - 10.1016/j.nuclphysbps.2010.08.013

M3 - Article

AN - SCOPUS:78449233430

SN - 0920-5632

VL - 205-206

SP - 20

EP - 24

JO - Nuclear Physics B (Proceedings Supplements)

JF - Nuclear Physics B (Proceedings Supplements)

IS - C

ER -

Threshold expansion of massive coloured particle cross sections

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