Abstract:
A search for Higgs-boson pair production in the bbbb final state is carried out with 3.2 fb-1 of proton-proton collision data collected at s=13 TeV with the ATLAS detector. The data are consistent with the estimated background and are used to set upper limits on the production cross section of Higgs-boson pairs times branching ratio to bbbb for both nonresonant and resonant production. In the case of resonant production of Kaluza-Klein gravitons within the Randall-Sundrum model, upper limits in the 24 to 91 fb range are obtained for masses between 600 and 3000 GeV, at the 95% confidence level. The production cross section times branching ratio for nonresonant Higgs-boson pairs is also constrained to be less than 1.22 pb, at the 95% confidence level. © 2016 CERN.
Referencias:
- Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC (2012) Phys. Lett. B, 716, p. 1. , ATLAS Collaboration
- Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC (2012) Phys. Lett. B, 716, p. 30. , CMS Collaboration
- Agashe, K., Davoudiasl, H., Perez, G., Soni, A., Warped gravitons at the LHC and beyond (2007) Phys. Rev. D, 76, p. 036006
- Fitzpatrick, L., Kaplan, J., Randall, L., Wang, L.-T., Searching for the Kaluza-Klein graviton in bulk RS models J. High Energy Phys., 2007 (9), p. 013
- Branco, G.C., Ferreira, P.M., Lavoura, L., Rebelo, M.N., Sher, M., Silva, J.P., Theory and phenomenology of two-Higgs-doublet models (2012) Phys. Rep., 516, p. 1
- Kribs, G.D., Martin, A., Enhanced di-Higgs production through light colored scalars (2012) Phys. Rev. D, 86, p. 095023
- Gröber, R., Mühlleitner, M., Composite Higgs boson pair production at the LHC J. High Energy Phys., 2011 (6), p. 020
- Contino, R., Ghezzi, M., Moretti, M., Panico, G., Piccinini, F., Wulzer, A., Anomalous couplings in double Higgs production J. High Energy Phys., 2012 (8), p. 154
- Search for Higgs boson pair production in the (Equation presented) final state from pp collisions at (Equation presented) with the ATLAS detector (2015) Eur. Phys. J. C, 75, p. 412. , ATLAS Collaboration
- Search for resonant pair production of Higgs bosons decaying to two bottom quark-antiquark pairs in proton-proton collisions at 8 TeV (2015) Phys. Lett. B, 749, p. 560. , CMS Collaboration
- Searches for Higgs boson pair production in the (Equation presented), (Equation presented), (Equation presented), (Equation presented) channels with the ATLAS detector (2015) Phys. Rev. D, 92, p. 092004. , ATLAS Collaboration
- Searches for a heavy scalar boson H decaying to a pair of 125 GeV Higgs bosons hh or for a heavy pseudoscalar boson A decaying to Zh, in the final states with h to tautau (2016) Phys. Lett. B, 755, p. 217. , CMS Collaboration
- Search for Higgs Boson Pair Production in the (Equation presented) Final State using (Equation presented) Collision Data at (Equation presented) from the ATLAS Detector (2015) Phys. Rev. Lett., 114, p. 081802. , ATLAS Collaboration
- Search for two Higgs bosons in final states containing two photons and two bottom quarks Phys. Rev. D, , CMS Collaboration, arXiv:1603.06896 [(to be published)]
- The ATLAS Experiment at the CERN Large Hadron Collider (2008) J. Instrum., 3, p. S08003. , ATLAS Collaboration
- (2010), http://cds.cern.ch/record/1291633, ATLAS Collaboration, Report No. ATLAS-TDR-19; (2012) ATLAS Insertable B-Layer Technical Design Report Addendum, , http://cds.cern.ch/record/1451888, ATLAS Collaboration, Report No. ATLAS-TDR-19-ADD-1
- Improved luminosity determination in pp collisions at (Equation presented) using the ATLAS detector at the LHC (2013) Eur. Phys. J. C, 73, p. 2518. , ATLAS Collaboration
- Performance of b-jet identification in the ATLAS experiment (2016) J. Instrum., 11, p. P04008. , ATLAS Collaboration
- Alwall, J., Frederix, R., Frixione, S., Hirschi, V., Maltoni, F., Mattelaer, O., Shao, H.-S., Zaro, M., The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations J. High Energy Phys., 2014 (7), p. 079
- Ball, R.D., Parton distributions with LHC data (2013) Nucl. Phys., B867, p. 244
- Sjöstrand, T., Mrenna, S., Skands, P.Z., A brief introduction to PYTHIA 8.1 (2008) Comput. Phys. Commun., 178, p. 852
- (2014), http://cds.cern.ch/record/1966419, ATLAS Collaboration, Report No. ATL-PHYS-PUB-2014-021; Lai, H.-L., Guzzi, M., Huston, J., Li, Z., Nadolsky, P.M., Pumplin, J., Yuan, C.-P., New parton distributions for collider physics (2010) Phys. Rev. D, 82, p. 074024
- Bahr, M., Herwig++ Physics and Manual (2008) Eur. Phys. J. C, 58, p. 639
- Nadolsky, P.M., Lai, H.-L., Cao, Q.-H., Huston, J., Pumplin, J., Stump, D., Tung, W.-K., Yuan, C.-P., Implications of CTEQ global analysis for collider observables (2008) Phys. Rev. D, 78, p. 013004
- Gieseke, S., Rohr, C., Siodmok, A., Colour reconnections in Herwig++ (2012) Eur. Phys. J. C, 72, p. 2225
- Dawson, S., Dittmaier, S., Spira, M., Neutral Higgs boson pair production at hadron colliders: QCD corrections (1998) Phys. Rev. D, 58, p. 115012
- Plehn, T., Spira, M., Zerwas, P., Pair production of neutral Higgs particles in gluon-gluon collisions (1996) Nucl. Phys., B479, p. 46
- Plehn, T., Spira, M., Zerwas, P., (1998) Nucl. Phys., B531, p. 655E
- Current Recommendations for Di-Higgs Cross-sections, , http://twiki.cern.ch/twiki/bin/view/LHCPhysics/LHCHXSWG, LHC Higgs Cross Section Working Group
- Sjöstrand, T., Mrenna, S., Skands, P.Z., PYTHIA 6.4 Physics and Manual J. High Energy Phys., 2006 (5), p. 026
- Skands, P.Z., Tuning Monte Carlo generators: The Perugia tunes (2010) Phys. Rev. D, 82, p. 074018
- 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
- Lange, D.J., The EvtGen particle decay simulation package (2001) Nucl. Instrum. Methods Phys. Res., Sect. A, 462, p. 152
- Agostinelli, S., GEANT4: A simulation toolkit (2003) Nucl. Instrum. Methods Phys. Res., Sect. A, 506, p. 250
- The ATLAS Simulation Infrastructure (2010) Eur. Phys. J. C, 70, p. 823. , ATLAS Collaboration
- Cacciari, M., Salam, G.P., Soyez, G., The anti-kt jet clustering algorithm J. High Energy Phys., 2008 (4), p. 063
- Jet energy measurement with the ATLAS detector in proton-proton collisions at (Equation presented) (2013) Eur. Phys. J. C, 73, p. 2304. , ATLAS Collaboration
- (2014), http://cds.cern.ch/record/1700870, ATLAS Collaboration, Report No. ATLASCONF-2014-018; Krohn, D., Thaler, J., Wang, L.-T., Jet Trimming J. High Energy Phys., 2010 (2), p. 084
- Ellis, S.D., Soper, D.E., Successive combination jet algorithm for hadron collisions (1993) Phys. Rev. D, 48, p. 3160
- (2015), http://cds.cern.ch/record/2042155, ATLAS Collaboration, Report No. ATL-PHYS-PUB-2015-035; Cacciari, M., Salam, G.P., Pileup subtraction using jet areas (2008) Phys. Lett. B, 659, p. 119
- (2015), http://cds.cern.ch/record/2037697, ATLAS Collaboration, Report No. ATLPHYS-PUB-2015-022; Muon reconstruction performance of the ATLAS detector in proton-proton collision data at (Equation presented) (2016) Eur. Phys. J. C, 76, p. 292. , ATLAS Collaboration
- (2015), http://cds.cern.ch/record/2037613, ATLAS Collaboration, Report No. ATL-PHYS-PUB-2015-015; Jet energy measurement and its systematic uncertainty in proton-proton collisions at (Equation presented) with the ATLAS detector (2015) Eur. Phys. J. C, 75, p. 17. , ATLAS Collaboration
- (2014), http://cdsweb.cern.ch/record/1664335, ATLAS Collaboration, Report No. ATLAS-CONF-2014-004; Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at (Equation presented) (2016) Eur. Phys. J. C, 76, p. 154. , ATLAS Collaboration
- (2015), http://cds.cern.ch/record/2041461, ATLAS Collaboration, Report No. ATL-PHYS-PUB-2015-033; Search for strong gravity in multijet final states produced in pp collisions at (Equation presented) using the ATLAS detector at the LHC J. High Energy Phys., 2016 (3), p. 026. , ATLAS Collaboration
- Cowan, G., Cranmer, K., Gross, E., Vitells, O., Asymptotic formulae for likelihood-based tests of new physics (2011) Eur. Phys. J. C, 71, p. 1554
- Cowan, G., Cranmer, K., Gross, E., Vitells, O., (2013) Eur. Phys. J. C, 73, p. 2501E
- Gross, E., Vitells, O., Trial factors or the look elsewhere effect in high energy physics (2010) Eur. Phys. J. C, 70, p. 525
- Read, A.L., Presentation of search results: The CL(s) technique (2002) J. Phys. G, 28, p. 2693
- ATLAS Computing Acknowledgements 2016-2017, , http://cds.cern.ch/record/2202407, ATLAS Collaboration
Citas:
---------- APA ----------
(2016)
. Search for pair production of Higgs bosons in the bbbb final state using proton-proton collisions at √s =13 TeV with the ATLAS detector. Physical Review D, 94(5).
http://dx.doi.org/10.1103/PhysRevD.94.052002---------- CHICAGO ----------
Aaboud, M.
"Search for pair production of Higgs bosons in the bbbb final state using proton-proton collisions at √s =13 TeV with the ATLAS detector"
. Physical Review D 94, no. 5
(2016).
http://dx.doi.org/10.1103/PhysRevD.94.052002---------- MLA ----------
Aaboud, M.
"Search for pair production of Higgs bosons in the bbbb final state using proton-proton collisions at √s =13 TeV with the ATLAS detector"
. Physical Review D, vol. 94, no. 5, 2016.
http://dx.doi.org/10.1103/PhysRevD.94.052002---------- VANCOUVER ----------
Aaboud, M. Search for pair production of Higgs bosons in the bbbb final state using proton-proton collisions at √s =13 TeV with the ATLAS detector. Phy. Rev. D. 2016;94(5).
http://dx.doi.org/10.1103/PhysRevD.94.052002