Search for the Standard Model Higgs boson decaying into b¯b produced in association with top quarks decaying hadronically in pp collisions at √s = 8 TeV with the ATLAS detector
Entity
UAM. Departamento de Física TeóricaPublisher
Springer Verlag; SISSADate
2016-05-27Citation
10.1007/JHEP05(2016)160
Journal of High Energy Physics 2016.5 (2016): 160
ISSN
1029-8479 (online); 1126-6708 (print)DOI
10.1007/JHEP05(2016)160Funded by
We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, HGF, and MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF, I-CORE and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW and NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia and NRC KI, Russian Federation; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZS, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, the Canada Council, CANARIE, CRC, Compute Canada, FQRNT, and the Ontario Innovation Trust, Canada; EPLANET, ERC, FP7, Horizon 2020 and Marie Sklodowska-Curie Actions, European Union; Investissements d’Avenir Labex and Idex, ANR, Région Auvergne and Fondation Partager le Savoir, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co- financed by EU-ESF and the Greek NSRF; BSF, GIF and Minerva, Israel; BRF, Norway; the Royal Society and Leverhulme Trust, United KingdomProject
info:eu-repo/grantAgreement/EC/FP7/246806Editor's Version
http://dx.doi.org/10.1007/JHEP05(2016)160Subjects
Hadron-hadron scattering (experiments); FísicaNote
Journal of High Energy Physics 2016.5 (2016): 160 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA)Artículo escrito por un elevado número de autores, sólo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiera, y los autores pertenecientes a la UAM
Rights
© 2016, The Author(s)Abstract
A search for Higgs boson production in association with a pair of top quarks (ttH¯ ) is performed, where the Higgs boson decays to b ¯b, and both top quarks decay hadronically. The data used correspond to an integrated luminosity of 20.3 fb−1 of pp collisions at √ s = 8 TeV collected with the ATLAS detector at the Large Hadron Collider. The search selects events with at least six energetic jets and uses a boosted decision tree algorithm to discriminate between signal and Standard Model background. The dominant multijet background is estimated using a dedicated data-driven technique. For a Higgs boson mass of 125 GeV, an upper limit of 6.4 (5.4) times the Standard Model cross section is observed (expected) at 95% confidence level. The best-fit value for the signal strength is µ = 1.6±2.6 times the Standard Model expectation for mH = 125 GeV. Combining all ttH¯ searches carried out by ATLAS at √ s = 8 and 7 TeV, an observed (expected) upper limit of 3.1 (1.4) times the Standard Model expectation is obtained at 95% confidence level, with a signal strength µ = 1.7 ± 0.8
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Google Scholar:ATLAS Collaboration
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Aad, G.
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Barreiro Alonso, Fernando
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Cantero, J.
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De la Torre, H.
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Peso Malagón, José del
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Glasman Kuguel, Claudia Beatriz
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Llorente Merino, J.
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Terrón Cuadrado, Juan
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