NNLL resummation for squark and gluino production at the LHC

Wim Beenakker; Christoph Borschensky; Michael Krämer; Anna Kulesza; Eric Laenen; Vincent Theeuwes; Silja Thewes

NNLL resummation for squark and gluino production at the LHC

Wim Beenakker
, Christoph Borschensky
, Michael Krämer
, Anna Kulesza
, Eric Laenen
, Vincent Theeuwes
, Silja Thewes

Sub String Theory, Cosmology and Elementary Particles

Research output: Other contribution › Other research output

Abstract

We perform the resummation of soft-gluon emissions for squark and gluino production at next- to-next-to-leading-logarithmic (NNLL) accuracy. We include also the one-loop hard matching coefficients as well as Coulomb corrections to second order, using Mellin-moment methods. We study the characteristics of this resummation in detail for a centre-of-mass (CM) energy of 8 TeV at the LHC, and for squark and gluino masses up to 2.5 TeV. We find significant enhancing effects for all four processes of squark- and gluino-pair production. Scale dependence is generally reduced compared to NLL resummation, except for gluino-pair production where we find a moderate enhancement.

Original language	English
Publication status	Published - 11 Apr 2014

Bibliographical note

23 pages, 6 figures; added one table and modified figure 1

Keywords

hep-ph

Cite this

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title = "NNLL resummation for squark and gluino production at the LHC",

abstract = "We perform the resummation of soft-gluon emissions for squark and gluino production at next- to-next-to-leading-logarithmic (NNLL) accuracy. We include also the one-loop hard matching coefficients as well as Coulomb corrections to second order, using Mellin-moment methods. We study the characteristics of this resummation in detail for a centre-of-mass (CM) energy of 8 TeV at the LHC, and for squark and gluino masses up to 2.5 TeV. We find significant enhancing effects for all four processes of squark- and gluino-pair production. Scale dependence is generally reduced compared to NLL resummation, except for gluino-pair production where we find a moderate enhancement.",

keywords = "hep-ph",

author = "Wim Beenakker and Christoph Borschensky and Michael Kr{\"a}mer and Anna Kulesza and Eric Laenen and Vincent Theeuwes and Silja Thewes",

note = "23 pages, 6 figures; added one table and modified figure 1",

year = "2014",

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TY - GEN

T1 - NNLL resummation for squark and gluino production at the LHC

AU - Beenakker, Wim

AU - Borschensky, Christoph

AU - Krämer, Michael

AU - Kulesza, Anna

AU - Laenen, Eric

AU - Theeuwes, Vincent

AU - Thewes, Silja

N1 - 23 pages, 6 figures; added one table and modified figure 1

PY - 2014/4/11

Y1 - 2014/4/11

N2 - We perform the resummation of soft-gluon emissions for squark and gluino production at next- to-next-to-leading-logarithmic (NNLL) accuracy. We include also the one-loop hard matching coefficients as well as Coulomb corrections to second order, using Mellin-moment methods. We study the characteristics of this resummation in detail for a centre-of-mass (CM) energy of 8 TeV at the LHC, and for squark and gluino masses up to 2.5 TeV. We find significant enhancing effects for all four processes of squark- and gluino-pair production. Scale dependence is generally reduced compared to NLL resummation, except for gluino-pair production where we find a moderate enhancement.

AB - We perform the resummation of soft-gluon emissions for squark and gluino production at next- to-next-to-leading-logarithmic (NNLL) accuracy. We include also the one-loop hard matching coefficients as well as Coulomb corrections to second order, using Mellin-moment methods. We study the characteristics of this resummation in detail for a centre-of-mass (CM) energy of 8 TeV at the LHC, and for squark and gluino masses up to 2.5 TeV. We find significant enhancing effects for all four processes of squark- and gluino-pair production. Scale dependence is generally reduced compared to NLL resummation, except for gluino-pair production where we find a moderate enhancement.

KW - hep-ph

M3 - Other contribution

ER -

NNLL resummation for squark and gluino production at the LHC

Abstract

Bibliographical note

Keywords

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