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dc.date.accessioned | 2019-08-15T16:14:02Z | |
dc.date.available | 2019-08-15T16:14:02Z | |
dc.date.issued | 2015-04-24 | |
dc.identifier.uri | http://sedici.unlp.edu.ar/handle/10915/79211 | |
dc.description.abstract | A search for a massive W' gauge boson decaying to a top quark and a bottom quark is performed with the ATLAS detector in pp collisions at the LHC. The dataset was taken at a centre-of-mass energy of √s = 8 TeV and corresponds to 20.3 fb−1 of integrated luminosity. This analysis is done in the hadronic decay mode of the top quark, where novel jet substructure techniques are used to identify jets from high-momentum top quarks. This allows for a search for high-mass W' bosons in the range 1.5–3.0 TeV. b-tagging is used to identify jets originating from b-quarks. The data are consistent with Standard Model background-only expectations, and upper limits at 95% confidence level are set on the W' → tb cross section times branching ratio ranging from 0.16 pb to 0.33 pb for left-handed W' bosons, and ranging from 0.10 pb to 0.21 pb for W' bosons with purely righthanded couplings. Upper limits at 95% confidence level are set on the W'-boson coupling to tb as a function of the W' mass using an effective field theory approach, which is independent of details of particular models predicting a W' boson. | en |
dc.language | en | es |
dc.subject | W' gauge boson | es |
dc.subject | top quark | es |
dc.subject | bottom quark | es |
dc.subject | ATLAS detector | es |
dc.title | Search for W' → tb→ qqbb decays in pp collisions at √s = 8 TeV with the ATLAS detector | en |
dc.type | Articulo | es |
sedici.identifier.other | https://doi.org/10.1140/epjc/s10052-015-3372-2 | |
sedici.identifier.issn | 1434-6052 | es |
sedici.creator.person | Alconada Verzini, María Josefina | es |
sedici.creator.person | Alonso, Francisco | es |
sedici.creator.person | Anduaga, Xabier Sebastián | es |
sedici.creator.person | Dova, María Teresa | es |
sedici.creator.person | Monticelli, Fernando Gabriel | es |
sedici.creator.person | Wahlberg, Hernán Pablo | es |
sedici.creator.person | The ATLAS Collaboration | es |
sedici.subject.materias | Ciencias Exactas | es |
sedici.subject.materias | Física | es |
sedici.description.fulltext | true | es |
mods.originInfo.place | Facultad de Ciencias Exactas | es |
sedici.subtype | Articulo | es |
sedici.rights.license | Creative Commons Attribution 4.0 International (CC BY 4.0) | |
sedici.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
sedici.description.peerReview | peer-review | es |
sedici.relation.journalTitle | The European Physical Journal C | es |
sedici.relation.journalVolumeAndIssue | vol. 75, no. 4 | es |