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Search for single v...
Search for single vector-like B quark production and decay via B â bH(b(b)over-bar) in pp collisions at âs=13 TeV with the ATLAS detector
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- Aad, G. (författare)
- Univ Calif Berkeley, Berkeley, CA USA.;IThemba Labs, Western Cape, South Africa.;Univ Cadi Ayyad, Fac Sci Semlalia, LPHEA Marrakech, Marrakech, Morocco.;Aix Marseille Univ, CPPM, CNRS, IN2P3, Marseille, France.;Univ Nova Lisboa, Dep Fis, Caparica, Portugal.;Univ Nova Lisboa, CEFITEC Fac Ciencias & Tecnol, Caparica, Portugal.
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- Lund-Jensen, Bengt (författare)
- KTH,Partikel- och astropartikelfysik
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- Ohm, Christian (författare)
- KTH,Partikel- och astropartikelfysik
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- Ripellino, Giulia (författare)
- KTH,Partikel- och astropartikelfysik
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- Shaheen, Rabia (författare)
- KTH,Partikel- och astropartikelfysik
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- Shope, David R. (författare)
- KTH,Partikel- och astropartikelfysik
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- Strandberg, Jonas (författare)
- KTH,Partikel- och astropartikelfysik
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- Zwalinski, L. (författare)
- CERN, Geneva, Switzerland.
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Univ Calif Berkeley, Berkeley, CA USA;IThemba Labs, Western Cape, South Africa.;Univ Cadi Ayyad, Fac Sci Semlalia, LPHEA Marrakech, Marrakech, Morocco.;Aix Marseille Univ, CPPM, CNRS, IN2P3, Marseille, France.;Univ Nova Lisboa, Dep Fis, Caparica, Portugal.;Univ Nova Lisboa, CEFITEC Fac Ciencias & Tecnol, Caparica, Portugal. Partikel- och astropartikelfysik (creator_code:org_t)
- Springer Nature, 2023
- 2023
- Engelska.
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Ingår i: Journal of High Energy Physics (JHEP). - : Springer Nature. - 1126-6708 .- 1029-8479. ; 2023:11
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- A search is presented for single production of a vector-like B quark decaying into a Standard Model b-quark and a Standard Model Higgs boson, which decays into a b (b) over bar pair. The search is carried out in 139 fb(-1) of root s = 13 TeV proton-proton collision data collected by the ATLAS detector at the LHC between 2015 and 2018. No significant deviation from the Standard Model background prediction is observed, and mass-dependent exclusion limits at the 95% confidence level are set on the resonance production cross-section in several theoretical scenarios determined by the couplings c(W), c(Z) and c(H) between the B quark and the Standard Model W, Z and Higgs bosons, respectively. For a vector-like B occurring as an isospin singlet, the search excludes values of c(W) greater than 0.45 for a B resonance mass (m(B)) between 1.0 and 1.2 TeV. For 1.2 TeV < m(B <) 2.0 TeV, c(W) values larger than 0.50-0.65 are excluded. If the B occurs as part of a (B, Y) doublet, the smallest excluded c(Z) coupling values range between 0.3 and 0.5 across the investigated resonance mass range 1.0 TeV < m(B) < 2.0 TeV.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Nyckelord
- Vector-Like Quarks
- Beyond Standard Model
- Exotics
- Hadron-Hadron Scattering
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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