Search for single production of a vectorlike T quark decaying into a Higgs boson and top quark with fully hadronic final states using the ATLAS detector

ATLAS Collaboration ; García Pascual, Juan Antonio (Universidad de Zaragoza)

Resumen: A search is made for a vectorlike T quark decaying into a Higgs boson and a top quark in 13 TeV protonproton collisions using the ATLAS detector at the Large Hadron Collider with a data sample corresponding to an integrated luminosity of 139 fb−1. The Higgs-boson and top-quark candidates are identified in the all-hadronic decay mode, where H → bb¯ and t → bW → bqq¯0 are reconstructed as large-radius jets. The candidate Higgs boson, top quark, and associated B hadrons are identified using tagging algorithms. No significant excess is observed above the background, so limits are set on the production cross section of a singlet T quark at 95% confidence level, depending on the mass mT and coupling κT of the vectorlike T quark to Standard Model particles. In the considered mass range between 1.0 and 2.3 TeV, the upper limit on the allowed coupling value

Idioma: Inglés

DOI: 10.1103/PhysRevD.105.092012

Año: 2022

Publicado en: Physical Review D 105, 9 (2022), 092012 [34 pp.]
ISSN: 2470-0010

Factor impacto JCR: 5.0 (2022)

Categ. JCR: PHYSICS, PARTICLES & FIELDS rank: 7 / 29 = 0.241 (2022) - Q1 - T1
Categ. JCR: ASTRONOMY & ASTROPHYSICS rank: 15 / 69 = 0.217 (2022) - Q1 - T1

Factor impacto CITESCORE: 9.2 - Physics and Astronomy (Q1)

Factor impacto SCIMAGO: 1.639 - Physics and Astronomy (miscellaneous) (Q1) - Nuclear and High Energy Physics (Q1)

Tipo y forma: Article (Published version)

Área (Departamento): Área Física Atóm.Molec.y Nucl. (Dpto. Física Teórica)