skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Differential distributions for t-channel single top-quark production and decay at next-to-next-to-leading order in QCD

Abstract

We present a detailed phenomenological study of the next-to-next-to-leading order (NNLO) QCD corrections for t-channel single top (anti-)quark production and its semi-leptonic decay at the CERN Large Hadron Collider (LHC). We find the NNLO corrections for the total inclusive rates at the LHC with different center of mass energies are generally smaller than the NLO corrections, indicative of improved convergence. However, they can be large for differential distributions, reaching a level of 10% or more in certain regions of the transverse momentum distributions of the top (anti-)quark and the pseudo-rapidity distributions of the leading jet in the event. In all cases the perturbative hard-scale uncertainties are greatly reduced after the NNLO corrections are included. We also show a comparison of the normalized parton-level distributions to recent data from the 8 TeV measurement of the ATLAS collaboration. The NNLO corrections tend to shift the theoretical predictions closer to the measured transverse momentum distribution of the top (anti)-quark. Importantly, for the LHC at 13 TeV, we present NNLO cross sections in a fiducial volume with decays of the top quark included.

Authors:
 [1];  [2];  [3]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Shanghai Jiao-Tong Univ., Shanghai (China)
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Zhejiang Univ., Hangzhou (China)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1421959
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2017; Journal Issue: 11; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; NLO Computations; QCD Phenomenology

Citation Formats

Berger, Edmond L., Gao, Jun, and Zhu, Hua Xing. Differential distributions for t-channel single top-quark production and decay at next-to-next-to-leading order in QCD. United States: N. p., 2017. Web. doi:10.1007/JHEP11(2017)158.
Berger, Edmond L., Gao, Jun, & Zhu, Hua Xing. Differential distributions for t-channel single top-quark production and decay at next-to-next-to-leading order in QCD. United States. doi:10.1007/JHEP11(2017)158.
Berger, Edmond L., Gao, Jun, and Zhu, Hua Xing. Fri . "Differential distributions for t-channel single top-quark production and decay at next-to-next-to-leading order in QCD". United States. doi:10.1007/JHEP11(2017)158. https://www.osti.gov/servlets/purl/1421959.
@article{osti_1421959,
title = {Differential distributions for t-channel single top-quark production and decay at next-to-next-to-leading order in QCD},
author = {Berger, Edmond L. and Gao, Jun and Zhu, Hua Xing},
abstractNote = {We present a detailed phenomenological study of the next-to-next-to-leading order (NNLO) QCD corrections for t-channel single top (anti-)quark production and its semi-leptonic decay at the CERN Large Hadron Collider (LHC). We find the NNLO corrections for the total inclusive rates at the LHC with different center of mass energies are generally smaller than the NLO corrections, indicative of improved convergence. However, they can be large for differential distributions, reaching a level of 10% or more in certain regions of the transverse momentum distributions of the top (anti-)quark and the pseudo-rapidity distributions of the leading jet in the event. In all cases the perturbative hard-scale uncertainties are greatly reduced after the NNLO corrections are included. We also show a comparison of the normalized parton-level distributions to recent data from the 8 TeV measurement of the ATLAS collaboration. The NNLO corrections tend to shift the theoretical predictions closer to the measured transverse momentum distribution of the top (anti)-quark. Importantly, for the LHC at 13 TeV, we present NNLO cross sections in a fiducial volume with decays of the top quark included.},
doi = {10.1007/JHEP11(2017)158},
journal = {Journal of High Energy Physics (Online)},
number = 11,
volume = 2017,
place = {United States},
year = {2017},
month = {11}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 17 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

The anti- k t jet clustering algorithm
journal, April 2008


How suppressed are the radiative interference effects in heavy unstable particle production?
journal, January 1994


Calculating QCD corrections to single top production in hadronic interactions
journal, February 1995


GoSam-2.0: a tool for automated one-loop calculations within the Standard Model and beyond
journal, August 2014


NNLO evolution of deep-inelastic structure functions: the non-singlet case
journal, February 2000


Two-loop QCD corrections to the heavy-to-light quark decay
journal, November 2008


Single-top t-channel production with off-shell and non-resonant effects
journal, October 2013


The quark beam function at two loops
journal, April 2014

  • Gaunt, Jonathan R.; Stahlhofen, Maximilian; Tackmann, Frank J.
  • Journal of High Energy Physics, Vol. 2014, Issue 4
  • DOI: 10.1007/JHEP04(2014)113

Order α2S contributions to the deep inelastic Wilson coefficient
journal, November 1991


An effective field theory for collinear and soft gluons: Heavy to light decays
journal, May 2001


APFEL: A PDF evolution library with QED corrections
journal, June 2014

  • Bertone, Valerio; Carrazza, Stefano; Rojo, Juan
  • Computer Physics Communications, Vol. 185, Issue 6
  • DOI: 10.1016/j.cpc.2014.03.007

Angular correlations in single-top-quark and W j j production at next-to-leading order
journal, November 2005


Observation of Electroweak Single Top-Quark Production
journal, August 2009


Observation of Single Top-Quark Production
journal, August 2009


A general algorithm for calculating jet cross sections in NLO QCD
journal, February 1997


$ O\left( {\alpha_s^2} \right) $ corrections to fully-differential top quark decays
journal, April 2013

  • Brucherseifer, Mathias; Caola, Fabrizio; Melnikov, Kirill
  • Journal of High Energy Physics, Vol. 2013, Issue 4
  • DOI: 10.1007/JHEP04(2013)059

Accurate QCD predictions for heavy-quark jets at the Tevatron and LHC
journal, July 2007


Next-to-leading order corrections to single top quark production and decay at the Fermilab Tevatron. II. t -channel process
journal, November 2005


Order-αs2 QCD corrections to the deep inelastic proton structure functions F2 and FL
journal, September 1992


Single top quark production as a window to physics beyond the standard model
journal, December 2000


Next-to-Leading-Order Predictions for t -Channel Single-Top Production at Hadron Colliders
journal, May 2009


Event generation with SHERPA 1.1
journal, February 2009


Single-top t-channel hadroproduction in the four-flavour scheme with POWHEG and aMC@NLO
journal, September 2012

  • Frederix, Rikkert; Re, Emanuele; Torrielli, Paolo
  • Journal of High Energy Physics, Vol. 2012, Issue 9
  • DOI: 10.1007/JHEP09(2012)130

Next-to-leading order corrections to Wt production and decay
journal, October 2005


N Jettiness: An Inclusive Event Shape to Veto Jets
journal, August 2010


Determination of the top-quark mass from hadro-production of single top-quarks
journal, December 2016


Single-top-quark production at hadron colliders
journal, October 1998


Fully differential single-top-quark cross section in next-to-leading order QCD
journal, September 2002


Parton distributions in the LHC era: MMHT 2014 PDFs
journal, May 2015


Measurement of the t -Channel Single Top Quark Production Cross Section in p p Collisions at s = 7 TeV
journal, August 2011


Single top-quark production and decay at next-to-leading order
journal, November 2004


On the NNLO QCD corrections to single-top production at the LHC
journal, September 2014


Toward a NNLO calculation of the <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mover accent="true"><mml:mi>B</mml:mi><mml:mo>¯</mml:mo></mml:mover><mml:mo>→</mml:mo><mml:msub><mml:mi>X</mml:mi><mml:mi>s</mml:mi></mml:msub><mml:mi>γ</mml:mi></mml:math> decay rate with a cut on photon energy: II. Two-loop result for the jet function
journal, June 2006


Order αs2 correction to the structure function F3(x, Q2) in deep inelastic neutrino-hadron scattering
journal, December 1992


Summing Sudakov logarithms in B X s γ in effective field theory
journal, December 2000


NNLO evolution of deep-inelastic structure functions: the singlet case
journal, November 2000


Comprehensive measurements of t -channel single top-quark production cross sections at s = 7 TeV with the ATLAS detector
journal, December 2014


Cross section measurement of t -channel single top quark production in pp collisions at s = 13 TeV
journal, September 2017


Final state QCD corrections to off-shell single top production in hadron collsions
journal, October 1996


Factorization and shape-function effects in inclusive B-meson decays
journal, November 2004


The zero-bin and mode factorization in quantum field theory
journal, October 2007


Shape function effects in B X s γ and B X u l ν ¯ decays
journal, August 2004


Two-loop QCD helicity amplitudes for (<mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mn>2</mml:mn><mml:mo>+</mml:mo><mml:mn>1</mml:mn></mml:math>)-jet production in deep inelastic scattering
journal, June 2009


NNLO corrections to inclusive semileptonic B decays in the shape-function region
journal, May 2009


Hard scattering factorization from effective field theory
journal, July 2002


Single-top-quark production via W -gluon fusion at next-to-leading order
journal, November 1997


Fully Differential Vector-Boson-Fusion Higgs Production at Next-to-Next-to-Leading Order
journal, August 2015


NLO single-top production matched with shower in POWHEG: s - and t -channel contributions
journal, September 2009


Single-top production in MC@NLO
journal, March 2006


Measurement of the t-channel single top-quark production cross section in pp collisions at <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>7</mml:mn><mml:mtext> TeV</mml:mtext></mml:math> with the ATLAS detector
journal, October 2012


Top near threshold: all αS corrections are trivial
journal, March 1994


Transforming differential equations of multi-loop Feynman integrals into canonical form
journal, April 2017


Understanding single-top-quark production and jets at hadron colliders
journal, December 2004


N-jettiness subtractions for NNLO QCD calculations
journal, September 2015

  • Gaunt, Jonathan R.; Stahlhofen, Maximilian; Tackmann, Frank J.
  • Journal of High Energy Physics, Vol. 2015, Issue 9
  • DOI: 10.1007/JHEP09(2015)058

Infrared factorization in inclusive B meson decays
journal, December 1994


Charm-Quark Production in Deep-Inelastic Neutrino Scattering at Next-to-Next-to-Leading Order in QCD
journal, May 2016


Extraction of V ub from inclusive B decays and the resummation of end point logarithms
journal, August 1996


Power corrections in the N -jettiness subtraction scheme
journal, March 2017

  • Boughezal, Radja; Liu, Xiaohui; Petriello, Frank
  • Journal of High Energy Physics, Vol. 2017, Issue 3
  • DOI: 10.1007/JHEP03(2017)160

Toward a NNLO calculation of the <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mover accent="true"><mml:mi>B</mml:mi><mml:mo>¯</mml:mo></mml:mover><mml:mo>→</mml:mo><mml:msub><mml:mi>X</mml:mi><mml:mi>s</mml:mi></mml:msub><mml:mi>γ</mml:mi></mml:math> decay rate with a cut on photon energy: I. Two-loop result for the soft function
journal, February 2006


Off-shell single-top production at NLO matched to parton showers
journal, June 2016

  • Frederix, R.; Frixione, S.; Papanastasiou, A. S.
  • Journal of High Energy Physics, Vol. 2016, Issue 6
  • DOI: 10.1007/JHEP06(2016)027

Higgs Boson Production via Vector-Boson Fusion at Next-to-Next-to-Leading Order in QCD
journal, July 2010


Soft-collinear factorization in effective field theory
journal, February 2002


Two-loop QCD correction to differential semi-leptonic decays in the shape-function region
journal, April 2009


Fully Differential QCD Corrections to Single Top Quark Final States
journal, October 2001

  • Harris, B. W.; Laenen, E.; Phaf, L.
  • International Journal of Modern Physics A, Vol. 16, Issue supp01a
  • DOI: 10.1142/S0217751X0100698X

    Works referencing / citing this record:

    Towards ultimate parton distributions at the high-luminosity LHC
    journal, November 2018