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

doi:10.1007/JHEP11(2017)158

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:

Berger, Edmond L. ^[1]; Gao, Jun ^[2]; Zhu, Hua Xing ^[3]

Argonne National Lab. (ANL), Argonne, IL (United States)
Shanghai Jiao-Tong Univ., Shanghai (China)
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Zhejiang Univ., Hangzhou (China)

Publication Date:: 2017-11-24

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

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.

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                    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.

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                    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.

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@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}

}

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DOI: 10.1007/JHEP11(2017)158

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Off-shell single-top-quark production in the Standard Model Effective Field Theory
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Soft-gluon corrections in top-quark production
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International Journal of Modern Physics A, Vol. 33, Issue 25
DOI: 10.1142/s0217751x18300211

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

Abstract

Citation Formats

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

Fiducial, total and differential cross-section measurements of t-channel single top-quark production in pp collisions at 8 TeV using data collected by the ATLAS detector journal, August 2017

The quark beam function at two loops journal, April 2014

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

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

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

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

HatHor for single top-quark production: Updated predictions and uncertainty estimates for single top-quark production in hadronic collisions journal, June 2015

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

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

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

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

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

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

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

Single-top t-channel production with off-shell and non-resonant effects text, January 2013

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

Precise predictions for single-top production: the impact of EW corrections and QCD shower on the t-channel signature journal, September 2019

Precise predictions for single-top production: the impact of EW corrections and QCD shower on the t-channel signature journal, September 2019

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

Model-independent constraints on the CKM matrix elements |Vtb|, |Vts| and |Vtd| journal, March 2019

Off-shell single-top-quark production in the Standard Model Effective Field Theory journal, June 2019

Next-to-leading order QCD corrections for single top-quark production in association with two jets journal, January 2020

NNLO QCD corrections to the polarized top quark decay t ( ↑ ) → X b + W + journal, May 2018

Probing anomalous W t b couplings at the LHC in single t -channel top quark production journal, September 2018

Higher Order Corrections to Spin Correlations in Top Quark Pair Production at the LHC journal, August 2019

The NNLO QCD soft function for 1-jettiness journal, March 2018

Soft-gluon corrections in top-quark production journal, September 2018

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

Fiducial, total and differential cross-section measurements of t-channel single top-quark production in pp collisions at 8 TeV using data collected by the ATLAS detector
journal, August 2017

The quark beam function at two loops
journal, April 2014

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

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

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

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

HatHor for single top-quark production: Updated predictions and uncertainty estimates for single top-quark production in hadronic collisions
journal, June 2015

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 $\sqrt{s} = 7 TeV$
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

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

Summing Sudakov logarithms in $\vec{B} X_{s} γ$ 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 $\sqrt{s} = 7 TeV$ with the ATLAS detector
journal, December 2014

Cross section measurement of t -channel single top quark production in pp collisions at $\sqrt{s} = 13 TeV$
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 $\vec{B} X_{s} γ$ and $\vec{B} X_{u} l \bar{ν}$ decays
journal, August 2004

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

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

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

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

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

Single-top t-channel production with off-shell and non-resonant effects
text, January 2013

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

Precise predictions for single-top production: the impact of EW corrections and QCD shower on the t-channel signature
journal, September 2019

Precise predictions for single-top production: the impact of EW corrections and QCD shower on the t-channel signature
journal, September 2019

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

Model-independent constraints on the CKM matrix elements |Vtb|, |Vts| and |Vtd|
journal, March 2019

Off-shell single-top-quark production in the Standard Model Effective Field Theory
journal, June 2019

Next-to-leading order QCD corrections for single top-quark production in association with two jets
journal, January 2020

NNLO QCD corrections to the polarized top quark decay $t (↑) \to X_{b} + W^{+}$
journal, May 2018

Probing anomalous $W t b$ couplings at the LHC in single $t$ -channel top quark production
journal, September 2018

Higher Order Corrections to Spin Correlations in Top Quark Pair Production at the LHC
journal, August 2019

The NNLO QCD soft function for 1-jettiness
journal, March 2018

Soft-gluon corrections in top-quark production
journal, September 2018