Extrapolating W -associated jet-production ratios at the LHC

Bern, Z.; Dixon, L. J.; Febres Cordero, F.; Höche, S.; Ita, H.; Kosower, D. A.; Maître, D.

doi:10.1103/PhysRevD.92.014008

Title: Extrapolating $W$ -associated jet-production ratios at the LHC

Abstract

Electroweak vector-boson production, accompanied by multiple jets, is an important background to searches for physics beyond the standard model. A precise and quantitative understanding of this process is helpful in constraining deviations from known physics. We study four key ratios in W + n -jet production at the LHC. We compute the ratio of cross sections for W + n - to W + (n-1)-jet production as a function of the minimum jet transverse momentum. We also study the ratio differentially, as a function of the W-boson transverse momentum; as a function of the scalar sum of the jet transverse energy, H$$jets\atop{T}$$; and as a function of certain jet transverse momenta. We show how to use such ratios to extrapolate differential cross sections to W + 6 -jet production at next-to-leading order, and we cross-check the method against a direct calculation at leading order. We predict the differential distribution in H$$jets\atop{T}$$ for W + 6 jets at next-to-leading order using such an extrapolation. We use the BlackHat software library together with SHERPA to perform the computations.

Authors:

Bern, Z. ^[1]; Dixon, L. J. ^[2]; Febres Cordero, F. ^[3]; Höche, S. ^[2]; Ita, H. ^[4]; Kosower, D. A. ^[5]; Maître, D. ^[6]

Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy
SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States)
Albert-Ludwigs-Univ. Freiburg, Freiburg (Germany); Univ. Simón Bolívar, Caracas (Venezuela)
Albert-Ludwigs-Univ. Freiburg, Freiburg (Germany)
Alternative Energies and Atomic Energy Commission (CEA), Saclay (France). Inst. de Physique Théorique
Univ. of Durham, Durham (United Kingdom). Dept. of Physics

Publication Date:: Tue Jul 07 00:00:00 EDT 2015

Research Org.:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

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

OSTI Identifier:: 1502952

Alternate Identifier(s):: OSTI ID: 1198676

Report Number(s):: SLAC-PUB-16144
Journal ID: ISSN 1550-7998; PRVDAQ

Grant/Contract Number:: AC02-76SF00515; SC0009937; AC02-05CH11231; ERC-AdG-8301; PHY-0705682; PITN-GA-2010-264564

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review. D, Particles, Fields, Gravitation and Cosmology

Additional Journal Information:: Journal Volume: 92; Journal Issue: 1; Journal ID: ISSN 1550-7998

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Bern, Z., Dixon, L. J., Febres Cordero, F., Höche, S., Ita, H., Kosower, D. A., and Maître, D. Extrapolating W -associated jet-production ratios at the LHC.  United States: N. p., 2015. 
Web.  doi:10.1103/PhysRevD.92.014008.

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                    Bern, Z., Dixon, L. J., Febres Cordero, F., Höche, S., Ita, H., Kosower, D. A., & Maître, D. Extrapolating W -associated jet-production ratios at the LHC.  United States.  https://doi.org/10.1103/PhysRevD.92.014008

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                    Bern, Z., Dixon, L. J., Febres Cordero, F., Höche, S., Ita, H., Kosower, D. A., and Maître, D. Tue .  
"Extrapolating W -associated jet-production ratios at the LHC".  United States.  https://doi.org/10.1103/PhysRevD.92.014008.  https://www.osti.gov/servlets/purl/1502952.

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@article{osti_1502952,

  title        = {Extrapolating W -associated jet-production ratios at the LHC},

  author       = {Bern, Z. and Dixon, L. J. and Febres Cordero, F. and Höche, S. and Ita, H. and Kosower, D. A. and Maître, D.},

  abstractNote = {Electroweak vector-boson production, accompanied by multiple jets, is an important background to searches for physics beyond the standard model. A precise and quantitative understanding of this process is helpful in constraining deviations from known physics. We study four key ratios in W + n -jet production at the LHC. We compute the ratio of cross sections for W + n - to W + (n-1)-jet production as a function of the minimum jet transverse momentum. We also study the ratio differentially, as a function of the W-boson transverse momentum; as a function of the scalar sum of the jet transverse energy, H$jets\atop{T}$; and as a function of certain jet transverse momenta. We show how to use such ratios to extrapolate differential cross sections to W + 6 -jet production at next-to-leading order, and we cross-check the method against a direct calculation at leading order. We predict the differential distribution in H$jets\atop{T}$ for W + 6 jets at next-to-leading order using such an extrapolation. We use the BlackHat software library together with SHERPA to perform the computations.},

  doi          = {10.1103/PhysRevD.92.014008},

  journal      = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},

  number       = 1,

  volume       = 92,

  place        = {United States},

  year         = {Tue Jul 07 00:00:00 EDT 2015},

  month        = {Tue Jul 07 00:00:00 EDT 2015}

}

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Works referencing / citing this record:

Aspects of perturbative QCD at a 100 TeV future hadron collider
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Höche, Stefan; Maierhoefer, Philipp; Moretti, Niccolo
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Measurements of $W^{\pm} Z$ production cross sections in $p p$ collisions at $\sqrt{s} = 8 TeV$ with the ATLAS detector and limits on anomalous gauge boson self-couplings

Journal Article Aad, G. ; Abbott, B. ; Abdallah, J. ; ... - Physical Review D

This paper presents measurements of W ± Z production in p p collisions at a center-of-mass energy of 8 TeV. The gauge bosons are reconstructed using their leptonic decay modes into electrons and muons. The data were collected in 2012 by the ATLAS experiment at the Large Hadron Collider and correspond to an integrated luminosity of 20.3 fb ^{- 1} . The measured inclusive cross section in the detector fiducial region is σ _{W ± Z} → _{ℓ ' ν ℓ ℓ}= 35.1 ± 0.9 ( stat ) ± 0.8 ( sys ) ± 0.8 ( lumi ) fbmore »« less
https://doi.org/10.1103/PhysRevD.93.092004

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Missing energy and jets for supersymmetry searches journal, February 2013

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Title: Extrapolating $W$ -associated jet-production ratios at the LHC

Using γ + jets production to calibrate the Standard Model $ Z\left( { \to v\bar{v}} \right) $ + jets background to new physics processes at the LHC
journal, October 2011

A measurement of the ratio of the production cross sections for $$W$$ W and $$Z$$ Z bosons in association with jets with the ATLAS detector
journal, December 2014

SHERPA 1. , a proof-of-concept version
journal, February 2004

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

Matching NLO QCD computations and parton shower simulations
journal, June 2002

One-loop amplitudes for e+e− to four partons
journal, March 1998

Multijet production in W, Z events at p colliders
journal, June 1989

Next-to-leading order $W + 5$ -jet production at the LHC
journal, July 2013

Giant QCD K-factors beyond NLO
journal, September 2010

On the production of a W and jets at hadron colliders
journal, June 1991

Search for new physics with jets and missing transverse momentum in pp collisions at $ \sqrt {s} = 7 $ TeV
journal, August 2011

Next-to-leading order QCD predictions for $Z$ , $γ^{*} + 3$ -jet distributions at the Tevatron
journal, October 2010

Merging H/W/Z + 0 and 1 jet at NLO with no merging scale: a path to parton shower + NNLO matching
journal, May 2013

Longitudinally-invariant k⊥-clustering algorithms for hadron-hadron collisions
journal, September 1993

Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
journal, September 2012

Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
journal, September 2012

ROOT — An object oriented data analysis framework
journal, April 1997

A hierarchical phase space generator for QCD antenna structures
journal, November 2002

FastJet user manual: (for version 3.0.2)
journal, March 2012

Multijet matrix elements and shower evolution in hadronic collisions: -jets as a case study
journal, June 2002

Search for supersymmetry in hadronic final states with missing transverse energy using the variables α T and b-quark multiplicity in pp collisions at $\sqrt{s} = 8\ \mathrm{TeV}$
journal, September 2013

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

$W + 3$ jet production at the Tevatron
journal, November 2009

Generalized unitarity at work: first NLO QCD results for hadronic W +3 jet production
journal, April 2009

Ratio of $W + N$ jets to $Z^{0} / γ^{*} + N$ jets versus N as a precision test of the standard model
journal, August 2003

Measurements of the $$W$$ W production cross sections in association with jets with the ATLAS detector
journal, February 2015

Associated production of a $W$ boson and one $b$ jet
journal, February 2009

QCD Matrix Elements + Parton Showers
journal, November 2001

Event generation with SHERPA 1.1
journal, February 2009

NLO QCD corrections to $W$ boson production with a massive $b$ -quark jet pair at the Fermilab Tevatron $p \bar{p}$ collider
journal, August 2006

Merging multi-leg NLO matrix elements with parton showers
journal, March 2013

Precise Predictions for $W + 3$ Jet Production at Hadron Colliders
journal, June 2009

Study of jets produced in association with a $W$ boson in $p p$ collisions at $\sqrt{s} = 7 TeV$ with the ATLAS detector
journal, May 2012

Search for Supersymmetry at the LHC in Events with Jets and Missing Transverse Energy
journal, November 2011

Colour decompositions of multi-quark one-loop QCD amplitudes
journal, February 2012

One-loop calculations in quantum field theory: From Feynman diagrams to unitarity cuts
journal, September 2012

Merging meets matching in MC@NLO
journal, December 2012

Correcting the Colour-Dipole Cascade Model with Fixed Order Matrix Elements
journal, May 2002

Precise predictions for $Z$ -boson $+ 4$ jet production at hadron colliders
journal, February 2012

$W + 3$ jet production at the LHC as a signal or background
journal, April 2010

Loop amplitudes in gauge theories: modern analytic approaches
journal, October 2011

Susy theories and QCD: numerical approaches
journal, October 2011

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journal, May 1985

Ntuples for NLO events at hadron colliders
journal, May 2014

Autofocusing searches in jets plus missing energy
journal, May 2011

A practical seedless infrared-safe cone jet algorithm
journal, May 2007

Scaling patterns for QCD jets
journal, October 2012

A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
journal, November 2004

Next-to-leading order $γ γ + 2 − jet$ production at the LHC
journal, September 2014

Comix, a new matrix element generator
journal, December 2008

Driving missing data at next-to-leading order
journal, December 2011

Charge asymmetry in W + jets production at the LHC
journal, June 2010

Parton distributions for the LHC
journal, July 2009

AMEGIC++ 1.0, A Matrix Element Generator In C++
journal, February 2002

Automated implementation of on-shell methods for one-loop amplitudes
journal, August 2008

Automating dipole subtraction for QCD NLO calculations
journal, December 2007

Erratum to “A general algorithm for calculating jet cross sections in NLO QCD” [Nucl. Phys. B 485 (1997) 291–419]
journal, January 1998

Precise Predictions for $W + 4$ -Jet Production at the Large Hadron Collider
journal, March 2011

Left-handed $W$ bosons at the LHC
journal, August 2011

Next-to-leading order QCD predictions for $W + 3$ -jet distributions at hadron colliders
journal, October 2009

One-loop corrections to two-quark three-gluon amplitudes
journal, March 1995

Missing energy and jets for supersymmetry searches
journal, February 2013

Jet production rates in association with W and Z bosons in pp collisions at $ \sqrt {s} = 7 {\text{TeV}} $
journal, January 2012

Four-Jet Production at the Large Hadron Collider at Next-to-Leading Order in QCD
journal, July 2012

Measurement of the production cross section for $Z / γ *$ in association with jets in $p p$ collisions at $\sqrt{s} = 7 TeV$ with the ATLAS detector
journal, February 2012

QCD matrix elements + parton showers. The NLO case
journal, April 2013

NNLOPS simulation of Higgs boson production
journal, October 2013

Next-to-leading order corrections to $W + 2$ jet and $Z + 2$ jet production at hadron colliders
journal, June 2002

Aspects of perturbative QCD at a 100 TeV future hadron collider
journal, August 2016

Next-to-leading order QCD predictions for top-quark pair production with up to three jets
journal, March 2017

Next-to-leading order QCD predictions for top-quark pair production with up to three jets
text, January 2017

Next-to-leading order QCD predictions for top-quark pair production with up to three jets
text, January 2016