Cornering sgluons with four-top-quark events

Autor: Benjamin Fuks, Mark D. Goodsell, Luc Darmé
Přispěvatelé: Laboratoire de Physique Théorique et Hautes Energies (LPTHE), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), Laboratoire de Physique Théorique et Hautes Energies ( LPTHE ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Centre National de la Recherche Scientifique ( CNRS )
Rok vydání: 2018
Předmět:
Quark
Nuclear and High Energy Physics
Particle physics
Top quark
color: octet
Physics beyond the Standard Model
Hadron
Scalar (mathematics)
FOS: Physical sciences
01 natural sciences
High Energy Physics - Experiment
Standard Model
High Energy Physics - Experiment (hep-ex)
High Energy Physics - Phenomenology (hep-ph)
[ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex]
jet: multiple production
0103 physical sciences
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
010306 general physics
Physics
Large Hadron Collider
new physics
010308 nuclear & particles physics
High Energy Physics::Phenomenology
Supersymmetry
lcsh:QC1-999
Automatic Keywords
High Energy Physics - Phenomenology
gaugino: Dirac
pair production
CERN LHC Coll
[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
top: multiple production
[ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
High Energy Physics::Experiment
hadron
supersymmetry
lcsh:Physics
resonance: production
Zdroj: Physics Letters B, Vol 784, Iss, Pp 223-228 (2018)
Physics Letters B
Physics Letters B, Elsevier, 2018, 784, pp.223-228. ⟨10.1016/j.physletb.2018.08.001⟩
Phys.Lett.B
Phys.Lett.B, 2018, 784, pp.223-228. ⟨10.1016/j.physletb.2018.08.001⟩
Physics Letters
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2018.08.001
Popis: The existence of colour-octet scalar states, often dubbed sgluons, is predicted in many extensions of the Standard Model of particle physics, such as supersymmetric realisations featuring Dirac gauginos. Such states have a large pair-production rate at hadron colliders and mainly decay into pairs of jets and top quarks. Consequently, they represent a primary target for experimental searches for new resonances in the multijet and multitop channels at the Large Hadron Collider. Adopting a phenomenologically-motivated simplified model, we reinterpret the results of a recent experimental search for the four-top-quark Standard Model signal, from which we constrain the sgluon mass to be larger than about 1.06 TeV. We additionally consider how modifications of the existing four-top-quark studies could enhance our ability to unravel the presence of scalar octets in data.
Comment: 8 pages, 4 figures. References added, matches published version
Databáze: OpenAIRE
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