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dc.contributor.author
Alvarez, Ezequiel  
dc.contributor.author
Estevez, Mariel  
dc.date.available
2019-03-26T19:11:54Z  
dc.date.issued
2017-08  
dc.identifier.citation
Alvarez, Ezequiel; Estevez, Mariel; tt¯bb¯ as a probe of new physics at the LHC; American Physical Society; Physical Review D; 96; 3; 8-2017; 1-28  
dc.identifier.issn
0556-2821  
dc.identifier.uri
http://hdl.handle.net/11336/72563  
dc.description.abstract
We study the ttbb final state at the LHC as a probe of new physics that couples mainly to the third generation of quarks. We analyze new physics simplified models with resonances of spin-0, -1 and -2. The sensitivity of the final states ttbb, tttt, bbbb and tt on each of these models is used to identify an important region in parameter space that is still not excluded and where ttbb is the most sensitive final state. We indicate possible experimental hints and discuss potential issues of observables that rely mainly on Monte Carlo predictions. A new observable is proposed that, at the price of requiring more statistics, reduces the impact of Monte Carlo predictions. We use preliminary 13 TeV results to give a raw estimate on the discovery reach and propose simple improvements on the observables.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
American Physical Society  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/  
dc.subject
Top  
dc.subject
Bottom  
dc.subject
Lhc  
dc.subject
Third Generation  
dc.subject.classification
Astronomía  
dc.subject.classification
Ciencias Físicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
tt¯bb¯ as a probe of new physics at the LHC  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2019-03-26T13:56:08Z  
dc.identifier.eissn
2470-0029  
dc.journal.volume
96  
dc.journal.number
3  
dc.journal.pagination
1-28  
dc.journal.pais
Estados Unidos  
dc.journal.ciudad
Oak Ridge  
dc.description.fil
Fil: Alvarez, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina  
dc.description.fil
Fil: Estevez, Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina  
dc.journal.title
Physical Review D  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.96.035016  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1103/PhysRevD.96.035016  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1701.04427