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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:
 [1];  [2];  [3];  [2];  [4];  [5];  [6]
  1. Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States)
  3. Albert-Ludwigs-Univ. Freiburg, Freiburg (Germany); Univ. Simón Bolívar, Caracas (Venezuela)
  4. Albert-Ludwigs-Univ. Freiburg, Freiburg (Germany)
  5. Alternative Energies and Atomic Energy Commission (CEA), Saclay (France). Inst. de Physique Théorique
  6. Univ. of Durham, Durham (United Kingdom). Dept. of Physics
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
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.
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. doi:10.1103/PhysRevD.92.014008.
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. doi:10.1103/PhysRevD.92.014008. https://www.osti.gov/servlets/purl/1502952.
@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 = {2015},
month = {7}
}

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Works referenced in this record:

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

  • Ask, S.; Parker, M. A.; Sandova, T.
  • Journal of High Energy Physics, Vol. 2011, Issue 10
  • DOI: 10.1007/JHEP10(2011)058

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

  • Rubin, Mathieu; Salam, Gavin P.; Sapeta, Sebastian
  • Journal of High Energy Physics, Vol. 2010, Issue 9
  • DOI: 10.1007/JHEP09(2010)084

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

  • Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.
  • Journal of High Energy Physics, Vol. 2011, Issue 8
  • DOI: 10.1007/JHEP08(2011)155

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

  • Hamilton, Keith; Nason, Paolo; Oleari, Carlo
  • Journal of High Energy Physics, Vol. 2013, Issue 5
  • DOI: 10.1007/JHEP05(2013)082

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

  • Brun, Rene; Rademakers, Fons
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 389, Issue 1-2
  • DOI: 10.1016/S0168-9002(97)00048-X

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


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 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 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

  • Frederix, Rikkert; Frixione, Stefano
  • Journal of High Energy Physics, Vol. 2012, Issue 12
  • DOI: 10.1007/JHEP12(2012)061

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


W's, Z's and jets
journal, May 1985


Ntuples for NLO events at hadron colliders
journal, May 2014

  • Bern, Z.; Dixon, L. J.; Febres Cordero, F.
  • Computer Physics Communications, Vol. 185, Issue 5
  • DOI: 10.1016/j.cpc.2014.01.011

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

  • Gerwick, Erik; Plehn, Tilman; Schumann, Steffen
  • Journal of High Energy Physics, Vol. 2012, Issue 10
  • DOI: 10.1007/JHEP10(2012)162

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


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

  • Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.
  • Journal of High Energy Physics, Vol. 2012, Issue 1
  • DOI: 10.1007/JHEP01(2012)010

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


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

  • Höche, Stefan; Krauss, Frank; Schönherr, Marek
  • Journal of High Energy Physics, Vol. 2013, Issue 4
  • DOI: 10.1007/JHEP04(2013)027

NNLOPS simulation of Higgs boson production
journal, October 2013

  • Hamilton, Keith; Nason, Paolo; Re, Emanuele
  • Journal of High Energy Physics, Vol. 2013, Issue 10
  • DOI: 10.1007/JHEP10(2013)222

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