Rare top quark decays at a 100 TeV proton–proton collider: $$t \rightarrow bWZ$$ t→bWZ and $$t\rightarrow hc$$ t→hc
Abstract We investigate extremely rare top quark decays at a future proton–proton collider with centre-of-mass energy of 100 TeV. We focus on two decay modes: radiative decay with a Z boson, $$t \rightarrow b WZ$$ t→bWZ , and flavour-changing neutral decay with a Higgs boson, $$t \rightarrow h c$$ t...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-03-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-018-5701-8 |
| _version_ | 1811314670049427456 |
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| author | Andreas Papaefstathiou Gilberto Tetlalmatzi-Xolocotzi |
| author_facet | Andreas Papaefstathiou Gilberto Tetlalmatzi-Xolocotzi |
| author_sort | Andreas Papaefstathiou |
| collection | DOAJ |
| description | Abstract We investigate extremely rare top quark decays at a future proton–proton collider with centre-of-mass energy of 100 TeV. We focus on two decay modes: radiative decay with a Z boson, $$t \rightarrow b WZ$$ t→bWZ , and flavour-changing neutral decay with a Higgs boson, $$t \rightarrow h c$$ t→hc , the former being kinematically suppressed with a branching ratio of $${\mathscr {O}}(10^{-6})$$ O(10-6) (Altarelli et al., Phys Lett B 502:125–132, 2001), and the latter highly loop-suppressed, with a branching ratio of $${\mathscr {O}}(10^{-15})$$ O(10-15) (Aguilar-Saavedra, Acta Phys Polon B 35:2695–2710, 2004). We find that $$t \rightarrow b WZ$$ t→bWZ will be very challenging to observe in top quark pair production, even within well-motivated beyond-the-standard model scenarios. For the mode $$t\rightarrow h c$$ t→hc we find a stronger sensitivity than that obtained by any future LHC measurement by at least one order of magnitude. |
| first_indexed | 2024-04-13T11:16:31Z |
| format | Article |
| id | doaj.art-57e4dd26050b410d9a19c85f2325a026 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-04-13T11:16:31Z |
| publishDate | 2018-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-57e4dd26050b410d9a19c85f2325a0262022-12-22T02:48:58ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522018-03-017831810.1140/epjc/s10052-018-5701-8Rare top quark decays at a 100 TeV proton–proton collider: $$t \rightarrow bWZ$$ t→bWZ and $$t\rightarrow hc$$ t→hcAndreas Papaefstathiou0Gilberto Tetlalmatzi-Xolocotzi1Institute for Theoretical Physics Amsterdam and Delta Institute for Theoretical Physics, University of AmsterdamNikhef, Theory GroupAbstract We investigate extremely rare top quark decays at a future proton–proton collider with centre-of-mass energy of 100 TeV. We focus on two decay modes: radiative decay with a Z boson, $$t \rightarrow b WZ$$ t→bWZ , and flavour-changing neutral decay with a Higgs boson, $$t \rightarrow h c$$ t→hc , the former being kinematically suppressed with a branching ratio of $${\mathscr {O}}(10^{-6})$$ O(10-6) (Altarelli et al., Phys Lett B 502:125–132, 2001), and the latter highly loop-suppressed, with a branching ratio of $${\mathscr {O}}(10^{-15})$$ O(10-15) (Aguilar-Saavedra, Acta Phys Polon B 35:2695–2710, 2004). We find that $$t \rightarrow b WZ$$ t→bWZ will be very challenging to observe in top quark pair production, even within well-motivated beyond-the-standard model scenarios. For the mode $$t\rightarrow h c$$ t→hc we find a stronger sensitivity than that obtained by any future LHC measurement by at least one order of magnitude.http://link.springer.com/article/10.1140/epjc/s10052-018-5701-8 |
| spellingShingle | Andreas Papaefstathiou Gilberto Tetlalmatzi-Xolocotzi Rare top quark decays at a 100 TeV proton–proton collider: $$t \rightarrow bWZ$$ t→bWZ and $$t\rightarrow hc$$ t→hc European Physical Journal C: Particles and Fields |
| title | Rare top quark decays at a 100 TeV proton–proton collider: $$t \rightarrow bWZ$$ t→bWZ and $$t\rightarrow hc$$ t→hc |
| title_full | Rare top quark decays at a 100 TeV proton–proton collider: $$t \rightarrow bWZ$$ t→bWZ and $$t\rightarrow hc$$ t→hc |
| title_fullStr | Rare top quark decays at a 100 TeV proton–proton collider: $$t \rightarrow bWZ$$ t→bWZ and $$t\rightarrow hc$$ t→hc |
| title_full_unstemmed | Rare top quark decays at a 100 TeV proton–proton collider: $$t \rightarrow bWZ$$ t→bWZ and $$t\rightarrow hc$$ t→hc |
| title_short | Rare top quark decays at a 100 TeV proton–proton collider: $$t \rightarrow bWZ$$ t→bWZ and $$t\rightarrow hc$$ t→hc |
| title_sort | rare top quark decays at a 100 tev proton proton collider t rightarrow bwz t bwz and t rightarrow hc t hc |
| url | http://link.springer.com/article/10.1140/epjc/s10052-018-5701-8 |
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