Constraints on the off-shell Higgs boson signal strength in the high-mass ZZ and WW final states with the ATLAS detector

. 2015 ; 75 (7) : 335. [epub] 20150717

Status PubMed-not-MEDLINE Jazyk angličtina Země Francie Médium print-electronic

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/pmid26213488

Measurements of the ZZ and WW final states in the mass range above the [Formula: see text] and [Formula: see text] thresholds provide a unique opportunity to measure the off-shell coupling strength of the Higgs boson. This paper presents constraints on the off-shell Higgs boson event yields normalised to the Standard Model prediction (signal strength) in the [Formula: see text], [Formula: see text] and [Formula: see text] final states. The result is based on pp collision data collected by the ATLAS experiment at the LHC, corresponding to an integrated luminosity of 20.3 fb[Formula: see text] at a collision energy of [Formula: see text] TeV. Using the [Formula: see text] method, the observed 95 [Formula: see text] confidence level (CL) upper limit on the off-shell signal strength is in the range 5.1-8.6, with an expected range of 6.7-11.0. In each case the range is determined by varying the unknown [Formula: see text] and [Formula: see text] background K-factor from higher-order quantum chromodynamics corrections between half and twice the value of the known signal K-factor. Assuming the relevant Higgs boson couplings are independent of the energy scale of the Higgs boson production, a combination with the on-shell measurements yields an observed (expected) 95 [Formula: see text] CL upper limit on [Formula: see text] in the range 4.5-7.5 (6.5-11.2) using the same variations of the background K-factor. Assuming that the unknown [Formula: see text] background K-factor is equal to the signal K-factor, this translates into an observed (expected) 95 [Formula: see text] CL upper limit on the Higgs boson total width of 22.7 (33.0) MeV.

2 Physikalisches Institut Georg August Universität Göttingen Germany

2 Physikalisches Institut Justus Liebig Universität Giessen Giessen Germany

Albert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics University of Bern Bern Switzerland

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Budker Institute of Nuclear Physics SB RAS Novosibirsk Russia

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Zobrazit více v PubMed

ATLAS Collaboration, Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC. Phys. Lett. B 716, 1 (2012). arXiv:1207.7214 [hep-ex]

CMS Collaboration, Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC. Phys. Lett. B 716, 30 (2012). arXiv:1207.7235 [hep-ex] PubMed

ATLAS Collaboration, Measurements of Higgs boson production and couplings in diboson final states with the ATLAS detector at the LHC. Phys. Lett. B 726, 88 (2013). arXiv:1307.1427 [hep-ex]

CMS Collaboration, Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 PubMed PMC

ATLAS Collaboration, Evidence for the spin-0 nature of the Higgs boson using ATLAS data. Phys. Lett. B 726, 120 (2013). arXiv:1307.1432 [hep-ex]

CMS Collaboration, Constraints on the spin-parity and anomalous HVV couplings of the Higgs boson in proton collisions at 7 and 8 TeV. arXiv:1411.3441 [hep-ex]

Kauer N, Passarino G. Inadequacy of zero-width approximation for a light Higgs boson signal. JHEP. 2012;08:116. doi: 10.1007/JHEP08(2012)116. DOI

Caola F, Melnikov K. Constraining the Higgs boson width with ZZ production at the LHC. Phys. Rev. D. 2013;88:054024. doi: 10.1103/PhysRevD.88.054024. DOI

Campbell JM, Ellis RK, Williams C. Bounding the Higgs width at the LHC using full analytic results for DOI

Campbell JM, Ellis RK, Williams C. Bounding the Higgs width at the LHC: complementary results from DOI

ATLAS Collaboration, Measurement of the Higgs boson mass from the

Englert C, Spannowsky M. Limitations and opportunities of off-shell coupling measurements. Phys. Rev. D. 2014;90:053003. doi: 10.1103/PhysRevD.90.053003. DOI

Cacciapaglia G, Deandrea A, La Rochelle GD, Flament J-B. Higgs couplings: disentangling new physics with off-shell measurements. Phys. Rev. Lett. 2014;113:201802. doi: 10.1103/PhysRevLett.113.201802. PubMed DOI

A. Azatov, C. Grojean, A. Paul, E. Salvioni, Taming the off-shell Higgs boson. JETP 147(3) (2015). arXiv:1406.6338 [hep-ph]

M. Ghezzi, G. Passarino, S. Uccirati, Bounding the Higgs width using effective field theory. PoS LL2014, 072 (2014). arXiv:1405.1925 [hep-ph]

M. Buschmann, D. Goncalves, S. Kuttimalai, M. Schonherr, F. Krauss et al., Mass effects in the Higgs-gluon coupling: boosted vs off-shell production. JHEP 2, 38 (2015). doi:10.1007/JHEP02(2015)038. arXiv:1410.5806 [hep-ph]

Gainer JS, Lykken J, Matchev KT, Mrenna S, Park M. Beyond geolocating: constraining higher dimensional operators in DOI

C. Englert, Y. Soreq, M. Spannowsky, Off-shell Higgs coupling measurements in BSM scenarios. JHEP 5, 145 (2015). doi:10.1007/JHEP05(2015)145. arXiv:1410.5440 [hep-ph]

Collaboration CMS. Constraints on the Higgs boson width from off-shell production and decay to DOI

ATLAS Collaboration, Search for invisible decays of a Higgs boson produced in association with a Z boson in ATLAS. Phys. Rev. Lett. 112, 201802 (2014). arXiv:1402.3244 [hep-ex]

CMS collaboration, Search for invisible decays of Higgs bosons in the vector boson fusion and associated ZH production modes. Eur. Phys. J. C 74, 2980 (2014). arXiv:1404.1344 [hep-ex] PubMed PMC

ATLAS Collaboration, The ATLAS experiment at the CERN Large Hadron Collider. JINST 3, S08003 (2008)

LHC Higgs Cross Section Working Group, S. Heinemeyer, C. Mariotti, G. Passarino, R. Tanaka (eds.), Handbook of LHC Higgs Cross Sections: 3. Higgs Properties. arXiv:1307.1347 [hep-ph]

H.E. Logan, Hiding a Higgs width enhancement from off-shell

Passarino G. Higgs CAT. Eur. Phys. J. C. 2014;74:2866. doi: 10.1140/epjc/s10052-014-2866-7. DOI

Agostinelli S, et al. Geant4, a simulation toolkit. Nucl. Instrum. Methods A. 2003;506:250. doi: 10.1016/S0168-9002(03)01368-8. DOI

ATLAS Collaboration, The ATLAS simulation infrastructure. Eur. Phys. J. C 70, 823 (2010). arXiv:1005.4568 [hep-ph]

Kauer N. Interference effects for H DOI

Sjostrand T, Mrenna S, Skands PZ, Brief A. Introduction to PYTHIA 8.1. Comput. Phys. Commun. 2008;178:852–867. doi: 10.1016/j.cpc.2008.01.036. DOI

Cascioli F, et al. Precise Higgs-background predictions: merging NLO QCD and squared quark-loop corrections to four-lepton + 0,1 jet production. JHEP. 2014;01:046. doi: 10.1007/JHEP01(2014)046. DOI

T. Gleisberg et al., Event generation with SHERPA 1.1. JHEP 02, 007 (2009). arXiv:0811.4622 [hep-ph]

Cascioli F, Maierhöfer P, Pozzorini S. Scattering amplitudes with open loops. Phys. Rev. Lett. 2012;108:111601. doi: 10.1103/PhysRevLett.108.111601. PubMed DOI

A. Denner, S. Dittmaier, L. Hofer, COLLIER – a fortran-library for one-loop integrals. PoS LL2014, 071 (2014). arXiv:1407.0087 [hep-ph]

Gao J, et al. The CT10 NNLO global analysis of QCD. Phys. Rev. D. 2014;89:033009. doi: 10.1103/PhysRevD.89.033009. DOI

Martin A, Stirling W, Thorne R, Watt G. Parton distributions for the LHC. Eur. Phys. J. C. 2009;63:189–285. doi: 10.1140/epjc/s10052-009-1072-5. DOI

Bonvini M, Caola F, Forte S, Melnikov K, Ridolfi G. Signal-background interference effects for DOI

Alwall J, et al. The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations. JHEP. 2014;07:079. doi: 10.1007/JHEP07(2014)079. DOI

A. Ballestrero, A. Belhouari, G. Bevilacqua, V. Kashkan, E. Maina, PHANTOM: a Monte Carlo event generator for six parton final states at high energy colliders. Comput. Phys. Commun. 180, 401–417 (2009). arXiv:0801.3359 [hep-ph]. (extended by the authors to include the production of the VBF

LHC Higgs Cross Section Working Group, S. Dittmaier, C. Mariotti, G. Passarino, R. Tanaka (eds.), Handbook of LHC Higgs Cross Sections: 2. Differential Distributions, CERN-2012-002 (CERN, Geneva, 2012). arXiv:1201.3084 [hep-ph]

J. Pumplin et al., New generation of parton distributions with uncertainties from global QCD analysis. JHEP 07, 012 (2002). arXiv:hep-ph/0201195

T. Sjostrand et al., PYTHIA 6.4 physics and manual. JHEP 05, 026 (2006)

Melia T, Nason P, Röntsch R, Zanderighi G. W DOI

Cascioli F, et al. ZZ production at hadron colliders in NNLO QCD. Phys. Lett. B. 2014;735:311. doi: 10.1016/j.physletb.2014.06.056. DOI

Gehrmann T, et al. PubMed DOI

Bierweiler A, Kasprzik T, Kühn JH. Vector-boson pair production at the LHC to DOI

Baglio J, Ninh LD, Weber MM. Massive gauge boson pair production at the LHC: a next-to-leading order story. Phys. Rev. D. 2013;88:113005. doi: 10.1103/PhysRevD.88.113005. DOI

Gieseke S, Kasprzik T, Kühn JH. Vector-boson pair production and electroweak corrections in HERWIG DOI

Alioli S, Moch S-O, Uwer P. Hadronic top-quark pair-production with one jet and parton showering. JHEP. 2012;1201:137. doi: 10.1007/JHEP01(2012)137. DOI

Alioli S, Nason P, Oleari C, Re E. NLO single-top production matched with shower in POWHEG: s- and t-channel contributions. JHEP. 2009;0909:111. doi: 10.1088/1126-6708/2009/09/111. DOI

B.P. Kersevan, E. Richter-Was, The Monte Carlo event generator AcerMC version 2.0 with interfaces to PYTHIA 6.2 and HERWIG 6.5. arXiv:hep-ph/0405247

M. Czakon, A. Mitov, Top

N. Kidonakis, Next-to-next-to-leading logarithm resummation for PubMed

N. Kidonakis, Next-to-next-to-leading-order collinear and soft gluon corrections for

N. Kidonakis, Two-loop soft anomalous dimensions for single top quark associated production with a

ATLAS Collaboration, Measurements of Higgs boson production and couplings in the four-lepton channel in pp collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector. Phys. Rev. D 91, 012006 (2015). arXiv:1408.5191 [hep-ex]

ATLAS Collaboration, Calibration of

ATLAS Collaboration, Calibration of the performance of

ATLAS Collaboration, Observation and measurement of Higgs boson decays to

Corcella G, et al. HERWIG 6: an event generator for hadron emission reactions with interfering gluons (including supersymmetric processes) JHEP. 2001;01:010. doi: 10.1088/1126-6708/2001/01/010. DOI

Lai H-L, et al. New parton distributions for collider physics. Phys. Rev. D. 2010;82:074024. doi: 10.1103/PhysRevD.82.074024. DOI

Ball RD, et al. Impact of heavy quark masses on parton distributions and LHC phenomenology. Nucl. Phys. B. 2011;849:296. doi: 10.1016/j.nuclphysb.2011.03.021. DOI

M. Botje et al., The PDF4LHC working group interim recommendations. arXiv:1101.0538 [hep-ph]

ATLAS Collaboration, Improved luminosity determination in PubMed PMC

Cowan G, Cranmer K, Gross E, Vitells O. Asymptotic formulae for likelihood-based tests of new physics. Eur. Phys. J. C. 2011;71:1554. doi: 10.1140/epjc/s10052-011-1554-0. DOI

Read AL. Presentation of search results: the CL DOI

ATLAS Collaboration, Combined search for the Standard Model Higgs boson in

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