Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector
Entidad
UAM. Departamento de Física TeóricaEditor
Springer VerlagFecha de edición
2015-04-21Cita
10.1007/JHEP04(2015)117
Journal of High Energy Physics 2015.4 (2015): 117
ISSN
1126-6708 (print); 1029-8479 (online)DOI
10.1007/JHEP04(2015)117Financiado por
We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. 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, DNSRC and Lundbeck Foundation, Denmark; EPLANET, ERC and NSRF, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT and NSRF, Greece; RGC, Hong Kong SAR, China; ISF, MINERVA, GIF, I-CORE and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; BRF and RCN, Norway; MNiSW and NCN, Poland; GRICES and FCT, Portugal; MNE/IFA, Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MIZS, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United States of America. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN and the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (U.K.) and BNL (USA) and in the Tier-2 facilities worldwideProyecto
info:eu-repo/grantAgreement/EC/FP7/246806Versión del editor
http://dx.doi.org/10.1007/JHEP04(2015)117Materias
Hadron-Hadron Scattering; FísicaNota
Journal of High Energy Physics 2015.4 (2015): 117 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA)Derechos
© 2015, The Author(s)Resumen
Results of a search for H → ττ decays are presented, based on the full set of proton-proton collision data recorded by the ATLAS experiment at the LHC during 2011 and 2012. The data correspond to integrated luminosities of 4.5 fb−1 and 20.3 fb−1 at centre-of-mass energies of √s = 7 TeV and √s = 8 TeV respectively. All combinations of leptonic (τ→ℓνν¯ with ℓ = e, μ) and hadronic (τ → hadrons ν) tau decays are considered. An excess of events over the expected background from other Standard Model processes is found with an observed (expected) significance of 4.5 (3.4) standard deviations. This excess provides evidence for the direct coupling of the recently discovered Higgs boson to fermions. The measured signal strength, normalised to the Standard Model expectation, of μ = 1. 43− 0.37+ 0.43 is consistent with the predicted Yukawa coupling strength in the Standard Model
Lista de ficheros
Google Scholar:Aad, G.
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Terrón Cuadrado, Juan
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Peso Malagón, José del
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Glasman Kuguel, Claudia Beatriz
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Barreiro Alonso, Fernando
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ATLAS Collaboration
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Arnal, V.
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Cantero, J.
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De la torre, H.
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Llorente Merino, J.
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