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Abstract:

This paper presents a measurement of the W boson production cross section and the W + /W − cross-section ratio, both in association with jets, in proton-proton collisions at s=8 TeV with the ATLAS experiment at the Large Hadron Collider. The measurement is performed in final states containing one electron and missing transverse momentum using data corresponding to an integrated luminosity of 20.2 fb −1 . Differential cross sections for events with at least one or two jets are presented for a range of observables, including jet transverse momenta and rapidities, the scalar sum of transverse momenta of the visible particles and the missing transverse momentum in the event, and the transverse momentum of the W boson. For a subset of the observables, the differential cross sections of positively and negatively charged W bosons are measured separately. In the cross-section ratio of W + /W − the dominant systematic uncertainties cancel out, improving the measurement precision by up to a factor of nine. The observables and ratios selected for this paper provide valuable input for the up quark, down quark, and gluon parton distribution functions of the proton.[Figure not available: see fulltext.]. © 2018, The Author(s).

Registro:

Documento: Artículo
Título:Measurement of differential cross sections and W + /W − cross-section ratios for W boson production in association with jets at √s=8 TeV with the ATLAS detector
Autor:Aaboud, M. et al.
Este artículo contiene 2881 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2881 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:Hadron-Hadron scattering (experiments)
Año:2018
Volumen:2018
Número:5
DOI: http://dx.doi.org/10.1007/JHEP05(2018)077
Título revista:Journal of High Energy Physics
Título revista abreviado:J. High Energy Phys.
ISSN:11266708
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2018_n5_p_Aaboud

Referencias:

  • Berger, C.F., Next-to-leading order QCD predictions for W + 3-jet distributions at hadron colliders (2009) Phys. Rev., 500. , [] [INSPIRE]
  • Berger, C.F., Precise predictions for W + 4 jet production at the Large Hadron Collider (2011) Phys. Rev. Lett., 106. , [] [INSPIRE]
  • Bern, Z., Next-to-leading order W + 5-jet production at the LHC (2013) Phys. Rev., 500. , [] [INSPIRE]
  • Boughezal, R., W -boson production in association with a jet at next-to-next-to-leading order in perturbative QCD (2015) Phys. Rev. Lett., 115. , [] [INSPIRE]
  • Gehrmann-De Ridder, A., Precise QCD predictions for the production of a Z boson in association with a hadronic jet (2016) Phys. Rev. Lett., 117. , [] [INSPIRE]
  • Hamilton, K., Nason, P., Zanderighi, G., MINLO: Multi-Scale Improved NLO (2012) JHEP, 10, p. 155. , [] [INSPIRE]
  • Frederix, R., Frixione, S., Merging meets matching in MC@NLO (2012) JHEP, 12, p. 061. , [] [INSPIRE]
  • Alwall, J., The automated computation of tree-level and next-to-leading order differential cross sections and their matching to parton shower simulations (2014) JHEP, 7, p. 079. , [] [INSPIRE]
  • Höche, S., Prestel, S., The midpoint between dipole and parton showers (2015) Eur. Phys. J., 100, p. 461. , [] [INSPIRE]
  • Giele, W.T., Kosower, D.A., Skands, P.Z., A simple shower and matching algorithm (2008) Phys. Rev., 500. , [] [INSPIRE]
  • Measurements of the W production cross sections in association with jets with the ATLAS detector (2015) Eur. Phys. J. C, 75, p. 82. , INSPIRE
  • Study of jets produced in association with a W boson in pp collisions at √s = 7 TeV with the ATLAS detector (2012) Phys. Rev. D, 85. , [INSPIRE]
  • Measurement of the differential cross sections for the associated production of a W boson and jets in proton-proton collisions at √s = 13 TeV (2017) Phys. Rev. D, 96. , [INSPIRE]
  • Measurements of differential cross sections for associated production of a W boson and jets in proton-proton collisions at √s = 8 TeV (2017) Phys. Rev. D, 95. , INSPIRE
  • Differential cross section measurements for the production of a W boson in association with jets in proton-proton collisions at √s = 7 TeV (2015) Phys. Lett. B, 741, p. 12. , INSPIRE
  • Measurement of forward W and Z boson production in association with jets in proton-proton collisions at √s = 8 TeV (2016) JHEP, 5, p. 131. , [INSPIRE]
  • Abe, F., Measurement of jet multiplicity in W events produced in p p ¯ collisions at √s = 1.8 TeV (1993) Phys. Rev. Lett, 70, p. 4042. , INSPIRE
  • Aaltonen, T., Measurement of the cross section for W − boson production in association with jets in p p ¯ collisions at √s = 1.96 TeV (2008) Phys. Rev. D, 77, p. 011108. , [INSPIRE]
  • Abazov, V.M., Studies of W boson plus jets production in p p ¯ collisions at √s = 1.96 TeV (2013) Phys. Rev. D, 88. , INSPIRE
  • Abazov, V.M., Measurements of inclusive W +jets production rates as a function of jet transverse momentum in p p ¯ collisions at √s = 1.96 TeV (2011) Phys. Lett. B, 705, p. 200. , INSPIRE
  • Measurements of electroweak W jj production and constraints on anomalous gauge couplings with the ATLAS detector (2017) Eur. Phys. J. C, 77, p. 474. , INSPIRE
  • Measurement of W boson angular distributions in events with high transverse momentum jets at √s = 8 TeV using the ATLAS detector (2017) Phys. Lett. B, 765, p. 132. , INSPIRE
  • Measurement of the production of a W boson in association with a charm quark in pp collisions at √s = 7 TeV with the ATLAS detector (2014) JHEP, 5, p. 068. , INSPIRE
  • Measurement of the cross-section for W boson production in association with b-jets in pp collisions at √s = 7 TeV with the ATLAS detector (2013) JHEP 06, , INSPIRE
  • Measurement of the production cross section of a W boson in association with two b jets in pp collisions at √s = 8 TeV (2017) Eur. Phys. J. C, 77, p. 92. , INSPIRE
  • Measurement of associated W + charm production in pp collisions at √s = 7 TeV (2014) JHEP, 2, p. 013. , INSPIRE
  • Measurement of forward t t ¯, W + b b ¯ and W + c c ¯ production in pp collisions at √s = 8 TeV (2017) Phys. Lett. B, 767, p. 110. , [INSPIRE]
  • Study of W boson production in association with beauty and charm (2015) Phys. Rev. D, 92. , INSPIRE
  • Measurement of the W charge asymmetry in the W → μν decay mode in pp collisions at √s = 7 TeV with the ATLAS detector (2011) Phys. Lett. B, 701, p. 31. , INSPIRE
  • Malik, S.A., Watt, G., Ratios of W and Z cross sections at large boson p T as a constraint on PDFs and background to new physics (2014) JHEP, 2, p. 025. , [INSPIRE]
  • Dulat, S., New parton distribution functions from a global analysis of quantum chromodynamics (2016) Phys. Rev., 500. , [] [INSPIRE]
  • The ATLAS experiment at the CERN Large Hadron Collider (2008) JINST, , 3 S08003 [INSPIRE]
  • The ATLAS simulation infrastructure (2010) Eur. Phys. J. C, 70, p. 823. , INSPIRE
  • Agostinelli, S., GEANT4 — a simulation toolkit (2003) Nucl. Instrum. Meth. A, 506, p. 250. , INSPIRE
  • Mangano, M.L., ALPGEN, a generator for hard multiparton processes in hadronic collisions (2003) JHEP, 7, p. 001. , [hep-ph/0206293] [INSPIRE]
  • Gleisberg, T., Event generation with SHERPA 1.1 (2009) JHEP, 2. , [INSPIRE]
  • Hoeche, S., Krauss, F., Schonherr, M., Siegert, F., QCD matrix elements + parton showers: The NLO case (2013) JHEP, 4, p. 027. , [] [INSPIRE]
  • Sjöstrand, T., Mrenna, S., Skands, P.Z., PYTHIA 6.4 physics and manual (2006) JHEP, 5. , [INSPIRE]
  • Skands, P.Z., Tuning Monte Carlo generators: the Perugia tunes (2010) Phys. Rev., 500. , [] [INSPIRE]
  • Golonka, P., Was, Z., PHOTOS Monte Carlo: A precision tool for QED corrections in Z and W decays (2006) Eur. Phys. J. C, 45, p. 97. , INSPIRE
  • Jadach, S., Was, Z., Decker, R., Kuhn, J.H., The τ decay library TAUOLA: Version 2.4 (1993) Comput. Phys. Commun., 76, p. 361. , [INSPIRE]
  • Pumplin, J., New generation of parton distributions with uncertainties from global QCD analysis (2002) JHEP 07, , INSPIRE
  • Beenakker, W., Squark and gluino hadroproduction (2011) Int. J. Mod. Phys., A 26, p. 2637. , [] [INSPIRE]
  • Catani, S., Krauss, F., Kuhn, R., Webber, B.R., QCD matrix elements + parton showers (2001) JHEP, 11. , [INSPIRE]
  • Yennie, D.R., Frautschi, S.C., Suura, H., The infrared divergence phenomena and high-energy processes (1961) Annals Phys., 13, p. 379. , [INSPIRE]
  • Lai, H.-L., New parton distributions for collider physics (2010) Phys. Rev., 500. , [] [INSPIRE]
  • Frixione, S., Nason, P., Oleari, C., Matching NLO QCD computations with Parton Shower simulations: the POWHEG method (2007) JHEP, 11, p. 070. , [] [INSPIRE]
  • Corcella, G., HERWIG 6: An Event generator for hadron emission reactions with interfering gluons (including supersymmetric processes) (2001) JHEP, , [INSPIRE]
  • New ATLAS event generator tunes to 2010 data (2011) ATL-PHYS-PUB-2011-008
  • Catani, S., Vector boson production at hadron colliders: a fully exclusive QCD calculation at NNLO (2009) Phys. Rev. Lett., 103. , [] [INSPIRE]
  • Catani, S., Grazzini, M., An NNLO subtraction formalism in hadron collisions and its application to Higgs boson production at the LHC (2007) Phys. Rev. Lett, 98, p. 222002. , [hep-ph/0703012] [INSPIRE]
  • Martin, A.D., Stirling, W.J., Thorne, R.S., Watt, G., Parton distributions for the LHC (2009) Eur. Phys. J., 100, p. 189. , [] [INSPIRE]
  • Cacciari, M., Top-pair production at hadron colliders with next-to-next-to-leading logarithmic soft-gluon resummation (2012) Phys. Lett., B 710, p. 612. , [] [INSPIRE]
  • Beneke, M., Falgari, P., Klein, S., Schwinn, C., Hadronic top-quark pair production with NNLL threshold resummation (2012) Nucl. Phys., B 855, p. 695. , [] [INSPIRE]
  • Bärnreuther, P., Czakon, M., Mitov, A., Percent level precision physics at the Tevatron: First genuine NNLO QCD corrections to q q ¯ → t t ¯ + X (2012) Phys. Rev. Lett., 109, p. 132001. , [INSPIRE]
  • Czakon, M., Mitov, A., NNLO corrections to top-pair production at hadron colliders: the all-fermionic scattering channels (2012) JHEP, 12, p. 054. , [] [INSPIRE]
  • Czakon, M., Mitov, A., NNLO corrections to top pair production at hadron colliders: the quark-gluon reaction (2013) JHEP, 1, p. 080. , [] [INSPIRE]
  • Czakon, M., Fiedler, P., Mitov, A., Total top-quark pair-production cross section at hadron colliders through O(α S 4 ) (2013) Phys. Rev. Lett., 110, p. 252004. , [INSPIRE]
  • Czakon, M., Mitov, A., Top++: a program for the calculation of the top-pair cross-section at hadron colliders (2014) Comput. Phys. Commun., 185, p. 2930. , [] [INSPIRE]
  • Kidonakis, N., NNLL resummation for s-channel single top quark production (2010) Phys. Rev., 500. , [] [INSPIRE]
  • Kidonakis, N., Next-to-next-to-leading-order collinear and soft gluon corrections for t-channel single top quark production (2011) Phys. Rev., 500. , [] [INSPIRE]
  • Kidonakis, N., Two-loop soft anomalous dimensions for single top quark associated production with a W − or H − (2010) Phys. Rev., 500. , [] [INSPIRE]
  • Campbell, J.M., Ellis, R.K., Williams, C., Vector boson pair production at the LHC (2011) JHEP, 7, p. 018. , [] [INSPIRE]
  • Sjöstrand, T., Mrenna, S., Skands, P.Z., A brief introduction to PYTHIA 8 (2008) Comput. Phys. Commun, 178, p. 852. , INSPIRE
  • Luminosity determination in pp collisions at √s = 8 TeV using the ATLAS detector at the LHC (2016) Eur. Phys. J. C, 76, p. 653. , INSPIRE
  • LHC proton-proton collision data (2012) Eur. Phys. J. C, 77 (2017), p. 195. , INSPIRE
  • Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1 (2017) Eur. Phys. J. C, 77, p. 490. , INSPIRE
  • Measurement of the isolated di-photon cross-section in pp collisions at √s = 7 TeV with the ATLAS detector (2012) Phys. Rev. D, 85. , [INSPIRE]
  • Cacciari, M., Salam, G.P., Soyez, G., The anti-k t jet clustering algorithm (2008) JHEP, 4, p. 063. , [INSPIRE]
  • Cacciari, M., Salam, G.P., Soyez, G., FastJet user manual (2012) Eur. Phys. J., 100, p. 1896. , [] [INSPIRE]
  • Barillari, T., (2008) Local hadronic calibration, , ATL-LARG-PUB-2009-001-2
  • Monte Carlo calibration and combination of in-situ measurements of jet energy scale, jet energy resolution and jet mass in ATLAS (2015) ATLAS-CONF-2015-037
  • (2015) Data-driven determination of the energy scale and resolution of jets reconstructed in the ATLAS calorimeters using dijet and multijet events at √s = 8 TeV, , ATLAS-CONF-2015-017
  • Determination of the jet energy scale and resolution at ATLAS using Z/γ-jet events in data at √s = 8 TeV (2015) ATLAS-CONF-2015-057
  • Performance of pile-up mitigation techniques for jets in pp collisions at √s = 8 TeV using the ATLAS detector (2016) Eur. Phys. J. C, 76, p. 581. , INSPIRE
  • (2015) Jet global sequential corrections with the ATLAS detector in proton-proton collisions at √s = 8 TeV, , ATLAS-CONF-2015-002
  • Characterisation and mitigation of beam-induced backgrounds observed in the ATLAS detector during the 2011 proton-proton run, 2013 JINST, , 8 P07004 [INSPIRE]
  • Tagging and suppression of pileup jets with the ATLAS detector (2014) ATLAS-CONF-2014-018
  • Performance of b-jet identification in the ATLAS experiment (2016) JINST, 11, p. P04008. , [INSPIRE]
  • Performance of algorithms that reconstruct missing transverse momentum in √s = 8 TeV proton-proton collisions in the ATLAS detector (2017) Eur. Phys. J. C, 77, p. 241. , INSPIRE
  • Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data (2016) Eur. Phys. J. C, 76, p. 666. , INSPIRE
  • Reconstruction of hadronic decay products of τ leptons with the ATLAS experiment (2016) Eur. Phys. J. C, 76, p. 295. , INSPIRE
  • Measurement of the muon reconstruction performance of the ATLAS detector using 2011 and 2012 LHC proton-proton collision data (2014) Eur. Phys. J. C, 74, p. 3130. , INSPIRE
  • Measurements of top-quark pair differential cross-sections in the lepton+jets channel in pp collisions at √s = 8 TeV using the ATLAS detector (2016) Eur. Phys. J. C, 76, p. 538. , [INSPIRE]
  • D’Agostini, G., A multidimensional unfolding method based on Bayes’ theorem (1995) Nucl. Instrum. Meth., A 362, p. 487. , [INSPIRE]
  • D’Agostini, G., Improved Iterative Bayesian Unfolding
  • Calibration of b-tagging using dileptonic top pair events in a combinatorial likelihood approach with the ATLAS experiment (2014) ATLAS-CONF-2014-004
  • Calibration of the performance of b-tagging for c and light-flavour jets in the 2012 ATLAS data (2014) ATLAS-CONF-2014-046
  • Electron and photon energy calibration with the ATLAS detector using LHC Run 1 data (2014) Eur. Phys. J. C, 74, p. 3071. , INSPIRE
  • Precision measurement and interpretation of inclusive W + , W − and Z/γ production cross sections with the ATLAS detector (2017) Eur. Phys. J. C, 77, p. 367. , [INSPIRE]
  • Multi-boson simulation for 13 TeV ATLAS analyses (2017) ATL-PHYS-PUB-2017-005
  • ATLAS simulation of boson plus jets processes in Run 2 (2017) ATL-PHYS-PUB-2017-006
  • Frixione, S., Webber, B.R., Matching NLO QCD computations and parton shower simulations (2002) JHEP, 6. , [INSPIRE]
  • Alcaraz Maestre, J., The SM and NLO Multileg and SM MC Working Groups: Summary Report, , INSPIRE
  • Campbell, J.M., Ellis, R.K., An update on vector boson pair production at hadron colliders (1999) Phys. Rev. D, 60, p. 113006. , INSPIRE
  • Campbell, J.M., Ellis, R.K., Rainwater, D.L., Next-to-leading order QCD predictions for W + 2 jet and Z + 2 jet production at the CERN LHC (2003) Phys. Rev. D, 68, p. 094021. , [hep-ph/0308195] [INSPIRE]
  • Abramowicz, H., Combination of measurements of inclusive deep inelastic e ± p scattering cross sections and QCD analysis of HERA data (2015) Eur. Phys. J. C, 75, p. 580. , INSPIRE
  • Ball, R.D., Parton distributions with LHC data (2013) Nucl. Phys., B 867, p. 244. , [] [INSPIRE]
  • Kallweit, S., NLO QCD+EW predictions for V + jets including off-shell vector-boson decays and multijet merging (2016) JHEP, 4, p. 021. , [] [INSPIRE]
  • Sjöstrand, T., An introduction to PYTHIA 8.2 (2015) Comput. Phys. Commun, 191, p. 159. , INSPIRE
  • Measurement of the Z/γ boson transverse momentum distribution in pp collisions at √s = 7 TeV with the ATLAS detector (2014) JHEP, 9, p. 145. , INSPIRE
  • Butterworth, J.M., Forshaw, J.R., Seymour, M.H., Multiparton interactions in photoproduction at HERA (1996) Z. Phys. C, 72, p. 637. , [hep-ph/9601371] [INSPIRE]
  • Measurement of the transverse momentum and ϕ η distributions of Drell-Yan lepton pairs in proton-proton collisions at √s = 8 TeV with the ATLAS detector (2016) Eur. Phys. J. C, 76, p. 291. , [INSPIRE]
  • Forte, S., Watt, G., Progress in the determination of the partonic structure of the proton (2013) Ann. Rev. Nucl. Part. Sci., 63, p. 291. , [] [INSPIRE]
  • Gehrmann-De Ridder, A., The NNLO QCD corrections to Z boson production at large transverse momentum (2016) JHEP, 7, p. 133. , [] [INSPIRE]
  • https://hepdata.net; ATLAS computing acknowledgements (2016) ATL-GEN-PUB-2016-002

Citas:

---------- APA ----------
(2018) . Measurement of differential cross sections and W + /W − cross-section ratios for W boson production in association with jets at √s=8 TeV with the ATLAS detector. Journal of High Energy Physics, 2018(5).
http://dx.doi.org/10.1007/JHEP05(2018)077
---------- CHICAGO ----------
Aaboud, M. "Measurement of differential cross sections and W + /W − cross-section ratios for W boson production in association with jets at √s=8 TeV with the ATLAS detector" . Journal of High Energy Physics 2018, no. 5 (2018).
http://dx.doi.org/10.1007/JHEP05(2018)077
---------- MLA ----------
Aaboud, M. "Measurement of differential cross sections and W + /W − cross-section ratios for W boson production in association with jets at √s=8 TeV with the ATLAS detector" . Journal of High Energy Physics, vol. 2018, no. 5, 2018.
http://dx.doi.org/10.1007/JHEP05(2018)077
---------- VANCOUVER ----------
Aaboud, M. Measurement of differential cross sections and W + /W − cross-section ratios for W boson production in association with jets at √s=8 TeV with the ATLAS detector. J. High Energy Phys. 2018;2018(5).
http://dx.doi.org/10.1007/JHEP05(2018)077