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Search for flavour-...
Search for flavour-changing neutral tqH interactions with H → γγ in pp collisions at √s = 13 TeV using the ATLAS detector
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- Aad, G. (author)
- Aix Marseille Univ, CPPM, CNRS IN2P3, Marseille, France
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- Bergeås Kuutmann, Elin, 1980- (author)
- Uppsala universitet,Högenergifysik
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- Brenner, Richard (author)
- Uppsala universitet,Högenergifysik
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- Dimitriadi, Christina (author)
- Uppsala universitet,Högenergifysik,Univ Bonn, Phys Inst, Bonn, Germany
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- Ekelöf, Tord (author)
- Uppsala universitet,FREIA
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- Ellajosyula, Venugopal (author)
- Uppsala universitet,Högenergifysik
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- Ellert, Mattias (author)
- Uppsala universitet,Högenergifysik
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- Ferrari, Arnaud, 1973- (author)
- Uppsala universitet,Högenergifysik
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- Gonzalez Suarez, Rebeca (author)
- Uppsala universitet,Högenergifysik
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- Mathisen, Thomas (author)
- Uppsala universitet,Högenergifysik
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- Mullier, Geoffrey (author)
- Uppsala universitet,Högenergifysik
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- Ripellino, Giulia (author)
- Uppsala universitet,Högenergifysik
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- Steentoft, Jonas (author)
- Uppsala universitet,Högenergifysik
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- Sunneborn Gudnadottir, Olga (author)
- Uppsala universitet,Högenergifysik
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- Zwalinski, L. (author)
- CERN, CH-1211 Geneva 23, Switzerland
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(creator_code:org_t)
- Springer, 2023
- 2023
- English.
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In: Journal of High Energy Physics (JHEP). - : Springer. - 1126-6708 .- 1029-8479. ; 2023:12
- Related links:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- A search for flavour-changing neutral interactions involving the top quark, the Higgs boson and an up-type quark q (q = c, u) is presented. The proton-proton collision data set used, with an integrated luminosity of 139 fb−1, was collected at √s = 13 TeV by the ATLAS experiment at the Large Hadron Collider. Both the decay process t → qH in tt¯ production and the production process pp → tH, with the Higgs boson decaying into two photons, are investigated. No significant excess is observed and upper limits are set on the t → cH and the t → uH branching ratios of 4.3 × 10−4 and 3.8 × 10−4, respectively, at the 95% confidence level, while the expected limits in the absence of signal are 4.7 × 10−4 and 3.9 × 10−4. Combining this search with ATLAS searches in the H → τ+τ− and H → bb¯ final states yields observed (expected) upper limits on the t → cH branching ratio of 5.8 × 10−4 (3.0 × 10−4) at the 95% confidence level. The corresponding observed (expected) upper limit on the t → uH branching ratio is 4.0 × 10−4 (2.4 × 10−4).
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Keyword
- Flavour Changing Neutral Currents
- Hadron-Hadron Scattering
- Higgs Physics
- Top Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
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Aad, G.
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Bergeås Kuutmann ...
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Brenner, Richard
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Dimitriadi, Chri ...
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Ekelöf, Tord
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Ellajosyula, Ven ...
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Ellert, Mattias
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Ferrari, Arnaud, ...
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Gonzalez Suarez, ...
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Mathisen, Thomas
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Mullier, Geoffre ...
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Ripellino, Giuli ...
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Steentoft, Jonas
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Sunneborn Gudnad ...
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Zwalinski, L.
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Subatomic Physic ...
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Uppsala University