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Title: Precise predictions for same-sign W-boson scattering at the LHC

Abstract

Vector-boson scattering processes are of great importance for the current run-II and future runs of the Large Hadron Collider. The presence of triple and quartic gauge couplings in the process gives access to the gauge sector of the Standard Model (SM) and possible new-physics contributions there. To test any new-physics hypothesis, sound knowledge of the SM contributions is necessary, with a precision which at least matches the experimental uncertainties of existing and forthcoming measurements. In this article we present a detailed study of the vector-boson scattering process with two positively-charged leptons and missing transverse momentum in the final state. In particular, we first carry out a systematic comparison of the various approximations that are usually performed for this kind of process against the complete calculation, at LO and NLO QCD accuracy. Such a study is performed both in the usual fiducial region used by experimental collaborations and in a more inclusive phase space, where the differences among the various approximations lead to more sizeable effects. Afterwards, we turn to predictions matched to parton showers, at LO and NLO: we show that on the one hand, the inclusion of NLO QCD corrections leads to more stable predictions, but on the othermore » hand the details of the matching and of the parton-shower programs cause differences which are considerably larger than those observed at fixed order, even in the experimental fiducial region. We conclude with recommendations for experimental studies of vector-boson scattering processes.« less

Authors:
 [1];  [2];  [3]; ORCiD logo [2];  [4];  [5];  [6];  [7];  [8];  [9];  [10];  [2];  [10];  [11];  [12];  [13];  [14];  [14];  [4];  [15] more »;  [14];  [16];  [17];  [12] « less
  1. INFN, Turin (Italy)
  2. Univ. Würzburg, Wurzburg (Germany)
  3. Univ. Siegen, Siegen (Germany)
  4. Albert-Ludwigs-Univ. Freiburg, Freiburg (Germany)
  5. Technische Univ. München, Garching (Germany)
  6. Univ. and INFN, Milan (Italy)
  7. Univ. di Pavia, Pavia (Italy); IBM Italia s.p.a. Circonvallazione Idroscalo, Segrate (Italy)
  8. Univ. of Tübingen, Tubingen (Germany)
  9. Univ. Zurich, Zurich (Switzerland)
  10. INFN, Turin (Italy); Univ. di Torino, Turin (Italy)
  11. Univ. of Vienna, Vienna (Austria)
  12. Karlsruhe Institute of Technology (KIT), Karlsruhe (Germany)
  13. Univ. di Pavia, Pavia (Italy)
  14. DESY Theory Group, Hamburg (Germany)
  15. Sorbonne Univ. et CNRS, Paris (France)
  16. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  17. Nikhef, Amsterdam (Netherlands)
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Org.:
USDOE
OSTI Identifier:
1544010
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 78; Journal Issue: 8; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Physics

Citation Formats

Ballestrero, Alessandro, Biedermann, Benedikt, Brass, Simon, Denner, Ansgar, Dittmaier, Stefan, Frederix, Rikkert, Govoni, Pietro, Grossi, Michele, Jäger, Barbara, Karlberg, Alexander, Maina, Ezio, Pellen, Mathieu, Pelliccioli, Giovanni, Plätzer, Simon, Rauch, Michael, Rebuzzi, Daniela, Reuter, Jürgen, Rothe, Vincent, Schwan, Christopher, Shao, Hua -Sheng, Stienemeier, Pascal, Zanderighi, Giulia, Zaro, Marco, and Zeppenfeld, Dieter. Precise predictions for same-sign W-boson scattering at the LHC. United States: N. p., 2018. Web. doi:10.1140/epjc/s10052-018-6136-y.
Ballestrero, Alessandro, Biedermann, Benedikt, Brass, Simon, Denner, Ansgar, Dittmaier, Stefan, Frederix, Rikkert, Govoni, Pietro, Grossi, Michele, Jäger, Barbara, Karlberg, Alexander, Maina, Ezio, Pellen, Mathieu, Pelliccioli, Giovanni, Plätzer, Simon, Rauch, Michael, Rebuzzi, Daniela, Reuter, Jürgen, Rothe, Vincent, Schwan, Christopher, Shao, Hua -Sheng, Stienemeier, Pascal, Zanderighi, Giulia, Zaro, Marco, & Zeppenfeld, Dieter. Precise predictions for same-sign W-boson scattering at the LHC. United States. doi:10.1140/epjc/s10052-018-6136-y.
Ballestrero, Alessandro, Biedermann, Benedikt, Brass, Simon, Denner, Ansgar, Dittmaier, Stefan, Frederix, Rikkert, Govoni, Pietro, Grossi, Michele, Jäger, Barbara, Karlberg, Alexander, Maina, Ezio, Pellen, Mathieu, Pelliccioli, Giovanni, Plätzer, Simon, Rauch, Michael, Rebuzzi, Daniela, Reuter, Jürgen, Rothe, Vincent, Schwan, Christopher, Shao, Hua -Sheng, Stienemeier, Pascal, Zanderighi, Giulia, Zaro, Marco, and Zeppenfeld, Dieter. Wed . "Precise predictions for same-sign W-boson scattering at the LHC". United States. doi:10.1140/epjc/s10052-018-6136-y. https://www.osti.gov/servlets/purl/1544010.
@article{osti_1544010,
title = {Precise predictions for same-sign W-boson scattering at the LHC},
author = {Ballestrero, Alessandro and Biedermann, Benedikt and Brass, Simon and Denner, Ansgar and Dittmaier, Stefan and Frederix, Rikkert and Govoni, Pietro and Grossi, Michele and Jäger, Barbara and Karlberg, Alexander and Maina, Ezio and Pellen, Mathieu and Pelliccioli, Giovanni and Plätzer, Simon and Rauch, Michael and Rebuzzi, Daniela and Reuter, Jürgen and Rothe, Vincent and Schwan, Christopher and Shao, Hua -Sheng and Stienemeier, Pascal and Zanderighi, Giulia and Zaro, Marco and Zeppenfeld, Dieter},
abstractNote = {Vector-boson scattering processes are of great importance for the current run-II and future runs of the Large Hadron Collider. The presence of triple and quartic gauge couplings in the process gives access to the gauge sector of the Standard Model (SM) and possible new-physics contributions there. To test any new-physics hypothesis, sound knowledge of the SM contributions is necessary, with a precision which at least matches the experimental uncertainties of existing and forthcoming measurements. In this article we present a detailed study of the vector-boson scattering process with two positively-charged leptons and missing transverse momentum in the final state. In particular, we first carry out a systematic comparison of the various approximations that are usually performed for this kind of process against the complete calculation, at LO and NLO QCD accuracy. Such a study is performed both in the usual fiducial region used by experimental collaborations and in a more inclusive phase space, where the differences among the various approximations lead to more sizeable effects. Afterwards, we turn to predictions matched to parton showers, at LO and NLO: we show that on the one hand, the inclusion of NLO QCD corrections leads to more stable predictions, but on the other hand the details of the matching and of the parton-shower programs cause differences which are considerably larger than those observed at fixed order, even in the experimental fiducial region. We conclude with recommendations for experimental studies of vector-boson scattering processes.},
doi = {10.1140/epjc/s10052-018-6136-y},
journal = {European Physical Journal. C, Particles and Fields},
number = 8,
volume = 78,
place = {United States},
year = {2018},
month = {8}
}

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Works referenced in this record:

Next-to-leading order QCD corrections to W + W production via vector-boson fusion
journal, July 2006


Next-to-leading order QCD corrections to Z boson pair production via vector-boson fusion
journal, June 2006


Next-to-leading-order QCD corrections to W + Z and W Z production via vector-boson fusion
journal, April 2007


Next-to-leading order QCD corrections to W + W + j j and W W j j production via weak-boson fusion
journal, August 2009


NLO corrections to electroweak and QCD production of W+W+ plus two jets in the POWHEG BOX
journal, November 2011

  • Jäger, Barbara; Zanderighi, Giulia
  • Journal of High Energy Physics, Vol. 2011, Issue 11
  • DOI: 10.1007/JHEP11(2011)055

Next-to-leading order QCD corrections to W + W + jj production in vector-boson fusion at the LHC
journal, December 2012


Next-to-leading order QCD predictions for W + W + jj production at the LHC
journal, December 2010

  • Melia, Tom; Melnikov, Kirill; Röntsch, Raoul
  • Journal of High Energy Physics, Vol. 2010, Issue 12
  • DOI: 10.1007/JHEP12(2010)053

W + W + plus dijet production in the POWHEG BOX
journal, June 2011


Next-to-leading order QCD corrections to W + W + and W W production in association with two jets
journal, March 2014


QCD corrections to electroweak l ν l jj and l + l jj production
journal, May 2004


Complete NLO corrections to W+W+ scattering and its irreducible background at the LHC
journal, October 2017

  • Biedermann, Benedikt; Denner, Ansgar; Pellen, Mathieu
  • Journal of High Energy Physics, Vol. 2017, Issue 10
  • DOI: 10.1007/JHEP10(2017)124

Luminosities for vector-boson-vector-boson scattering at high energy colliders
journal, June 1996


Logarithmic electroweak corrections to e + e → ν e bar nu e W + W
journal, March 2007


The effective W approximation
journal, January 1985


WW physics at future colliders
journal, August 1986


Production of very massive Higgs bosons
journal, March 1984


PHANTOM: A Monte Carlo event generator for six parton final states at high energy colliders
journal, March 2009

  • Ballestrero, Alessandro; Belhouari, Aissa; Bevilacqua, Giuseppe
  • Computer Physics Communications, Vol. 180, Issue 3
  • DOI: 10.1016/j.cpc.2008.10.005

Predictions for all processes e+e− → fermions + γ
journal, November 1999


Electroweak corrections to charged-current fermion processes: Technical details and further results
journal, September 2005


The complex-mass scheme for perturbative calculations with unstable particles
journal, October 2006


A new method for helicity calculations
journal, May 1995


Complete lowest-order calculations for four-lepton final states in electron-positron collisions
journal, January 1985


A new algorithm for adaptive multidimensional integration
journal, May 1978


WHIZARD—simulating multi-particle processes at LHC and ILC
journal, September 2011


QCD in the color-flow representation
journal, October 2012


NLO QCD predictions for off-shell t t ¯ $$ t\overline{t} $$ and t t ¯ H $$ t\overline{t}H $$ production and decay at a linear collider
journal, December 2016

  • Nejad, Bijan Chokoufé; Kilian, Wolfgang; Lindert, Jonas M.
  • Journal of High Energy Physics, Vol. 2016, Issue 12
  • DOI: 10.1007/JHEP12(2016)075

Three-jet cross sections to next-to-leading order
journal, May 1996


A general approach to jet cross sections in QCD
journal, December 1997


Scattering Amplitudes with Open Loops
journal, March 2012


Recursive generation of one-loop amplitudes in the Standard Model
journal, April 2013


R E C O L A—REcursive Computation of One-Loop Amplitudes
journal, May 2017


Automation of NLO processes and decays and POWHEG matching in WHIZARD
journal, October 2016


Resonances and unitarity in weak boson scattering at the LHC
journal, November 2008


High-energy vector boson scattering after the Higgs boson discovery
journal, May 2015


Vector-boson scattering at the LHC
conference, July 2018

  • Schwan, Christopher
  • Proceedings of 13th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology) — PoS(RADCOR2017)
  • DOI: 10.22323/1.290.0081

Lusifer: a LUcid approach to SIx-FERmion production
journal, October 2002


Collier: A fortran-based complex one-loop library in extended regularizations
journal, March 2017


Electroweak radiative corrections to e+e−→WW→4 fermions in double-pole approximation — the RacoonWW approach
journal, October 2000


Non-factorizable photonic corrections to resonant production and decay of many unstable particles
journal, March 2016


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


Matching NLO QCD computations with parton shower simulations: the POWHEG method
journal, November 2007


A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX
journal, June 2010

  • Alioli, Simone; Nason, Paolo; Oleari, Carlo
  • Journal of High Energy Physics, Vol. 2010, Issue 6
  • DOI: 10.1007/JHEP06(2010)043

Vbfnlo: A parton level Monte Carlo for processes with electroweak bosons
journal, September 2009


The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
journal, July 2014

  • Alwall, J.; Frederix, R.; Frixione, S.
  • Journal of High Energy Physics, Vol. 2014, Issue 7
  • DOI: 10.1007/JHEP07(2014)079

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


Automation of next-to-leading order computations in QCD: the FKS subtraction
journal, October 2009


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

Reducing full one-loop amplitudes to scalar integrals at the integrand level
journal, February 2007


Integrand reduction of one-loop scattering amplitudes through Laurent series expansion
journal, June 2012

  • Mastrolia, Pierpaolo; Mirabella, Edoardo; Peraro, Tiziano
  • Journal of High Energy Physics, Vol. 2012, Issue 6
  • DOI: 10.1007/JHEP06(2012)095

One-loop corrections for e+e− annihilation into μ+μ− in the Weinberg model
journal, November 1979


A simple formula for reducing Feynman diagrams to scalar integrals
journal, July 1991


Reduction schemes for one-loop tensor integrals
journal, January 2006


Automation of one-loop QCD computations
journal, May 2011

  • Hirschi, Valentin; Frederix, Rikkert; Frixione, Stefano
  • Journal of High Energy Physics, Vol. 2011, Issue 5
  • DOI: 10.1007/JHEP05(2011)044

CutTools : a program implementing the OPP reduction method to compute one-loop amplitudes
journal, March 2008

  • Ossola, Giovanni; Papadopoulos, Costas G.; Pittau, Roberto
  • Journal of High Energy Physics, Vol. 2008, Issue 03
  • DOI: 10.1088/1126-6708/2008/03/042

Ninja: Automated integrand reduction via Laurent expansion for one-loop amplitudes
journal, October 2014


Tensor integrand reduction via Laurent expansion
journal, June 2016

  • Hirschi, Valentin; Peraro, Tiziano
  • Journal of High Energy Physics, Vol. 2016, Issue 6
  • DOI: 10.1007/JHEP06(2016)060

Four-lepton production at hadron colliders: aMC@NLO predictions with theoretical uncertainties
journal, February 2012

  • Frederix, Rikkert; Frixione, Stefano; Hirschi, Valentin
  • Journal of High Energy Physics, Vol. 2012, Issue 2
  • DOI: 10.1007/JHEP02(2012)099

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


A general approach to photon radiation off fermions
journal, January 2000


NLO QCD corrections to off-shell top-antitop production with leptonic decays in association with a Higgs boson at the LHC
journal, November 2015


Higgs production in association with off-shell top-antitop pairs at NLO EW and QCD at the LHC
journal, February 2017

  • Denner, Ansgar; Lang, Jean-Nicolas; Pellen, Mathieu
  • Journal of High Energy Physics, Vol. 2017, Issue 2
  • DOI: 10.1007/JHEP02(2017)053

Large Electroweak Corrections to Vector-Boson Scattering at the Large Hadron Collider
journal, June 2017


All electroweak four-fermion processes in electron-positron collisions
journal, August 1994


Parton distributions for the LHC run II
journal, April 2015

  • Ball, Richard D.; Bertone, Valerio; Carrazza, Stefano
  • Journal of High Energy Physics, Vol. 2015, Issue 4
  • DOI: 10.1007/JHEP04(2015)040

LHAPDF6: parton density access in the LHC precision era
journal, March 2015


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


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


Off-shell production of top-antitop pairs in the lepton+jets channel at NLO QCD
journal, February 2018


An introduction to PYTHIA 8.2
journal, June 2015

  • Sjöstrand, Torbjörn; Ask, Stefan; Christiansen, Jesper R.
  • Computer Physics Communications, Vol. 191
  • DOI: 10.1016/j.cpc.2015.01.024

Dipole showers and automated NLO matching in Herwig++
journal, November 2012


A proposal for a standard interface between Monte Carlo tools and one-loop programs
journal, September 2010


Update of the Binoth Les Houches Accord for a standard interface between Monte Carlo tools and one-loop programs
journal, February 2014


Tuning PYTHIA 8.1: the Monash 2013 tune
journal, August 2014


Automatic spin-entangled decays of heavy resonances in Monte Carlo simulations
journal, March 2013

  • Artoisenet, Pierre; Frederix, Rikkert; Mattelaer, Olivier
  • Journal of High Energy Physics, Vol. 2013, Issue 3
  • DOI: 10.1007/JHEP03(2013)015

A standard format for Les Houches Event Files
journal, February 2007

  • Alwall, J.; Ballestrero, A.; Bartalini, P.
  • Computer Physics Communications, Vol. 176, Issue 4
  • DOI: 10.1016/j.cpc.2006.11.010

Electroweak production of two jets in association with a Z boson in proton–proton collisions at $$\sqrt{s}= $$ s = 13 $$\,\text {TeV}$$ TeV
journal, July 2018


Herwig++ physics and manual
journal, November 2008


Next-to-leading order QCD corrections to electroweak Zjj production in the POWHEG BOX
journal, September 2012

  • Jäger, Barbara; Schneider, Steven; Zanderighi, Giulia
  • Journal of High Energy Physics, Vol. 2012, Issue 9
  • DOI: 10.1007/JHEP09(2012)083

Electroweak W+W− jj prodution at NLO in QCD matched with parton shower in the POWHEG-BOX
journal, April 2013

  • Jäger, Barbara; Zanderighi, Giulia
  • Journal of High Energy Physics, Vol. 2013, Issue 4
  • DOI: 10.1007/JHEP04(2013)024

Electroweak ZZjj production in the Standard Model and beyond in the POWHEG-BOX V2
journal, March 2014

  • Jäger, Barbara; Karlberg, Alexander; Zanderighi, Giulia
  • Journal of High Energy Physics, Vol. 2014, Issue 3
  • DOI: 10.1007/JHEP03(2014)141

Parton shower effects on W and Z production via vector boson fusion at NLO QCD
journal, April 2013

  • Schissler, Franziska; Zeppenfeld, Dieter
  • Journal of High Energy Physics, Vol. 2013, Issue 4
  • DOI: 10.1007/JHEP04(2013)057

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


Second-order QCD effects in Higgs boson production through vector boson fusion
journal, June 2018


Top-pair production at the LHC through NNLO QCD and NLO EW
journal, October 2017

  • Czakon, Michał; Heymes, David; Mitov, Alexander
  • Journal of High Energy Physics, Vol. 2017, Issue 10
  • DOI: 10.1007/JHEP10(2017)186

Precise predictions for $$V+$$ V + jets dark matter backgrounds
journal, December 2017


    Works referencing / citing this record:

    Precise predictions for same-sign W-boson scattering at the LHC
    text, January 2018

    • Ballestrero, Alessandro; Biedermann, Benedikt; Brass, Simon
    • Deutsches Elektronen-Synchrotron, DESY, Hamburg
    • DOI: 10.3204/pubdb-2018-03280

    Parallel adaptive Monte Carlo integration with the event generator WHIZARD
    journal, April 2019