Probing top quark FCNC tq gamma and tqZ couplings at future electron-proton colliders

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dc.authorid0000-0002-9016-138Xen_US
dc.authorid0000-0001-8782-4608en_US
dc.authorid0000-0001-5963-8306en_US
dc.authorid0000-0003-1570-0344en_US
dc.contributor.authorÇakır, Orhan
dc.contributor.authorYılmaz, Ali
dc.contributor.authorÇakır, İlkay Türk
dc.contributor.authorŞenol, Abdülkadir
dc.contributor.authorDenizli, Haluk
dc.date.accessioned2021-06-23T19:51:26Z
dc.date.available2021-06-23T19:51:26Z
dc.date.issued2019
dc.departmentBAİBÜ, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.description.abstractThe top quark flavor changing neutral current (FCNC) processes are extremely suppressed within the Standard Model (SM) of particle physics. However, they could be enhanced in a new physics model Beyond the Standard Model (BSM). The top quark FCNC interactions would be a good test of new physics at present and future colliders. Within the framework of the BSM models, these interactions can be described by an effective Lagrangian. In this work, we study tq gamma and tqZ effective FCNC interaction vertices through the process e(-) p -> e(-) Wq + X at future electron proton colliders, projected as Large Hadron electron Collider (LHeC) and Future Circular Collider-hadron electron (FCC-he). The cross sections for the signal have been calculated for different values of parameters lambda q for tq gamma vertices and K-q for tqZ vertices. Taking into account the relevant background we estimate the attainable range of signal parameters as a function of the integrated luminosity and present contour plots of couplings for different significance levels including detector simulation. We find the sensitivities to the branching ratios (BR(t -> q gamma) = 7.5 x 10(-6), BR(t -> qZ) = 3.5 x 10(-5)) and (BR(t -> q gamma) = 8.5 x 10(-7), BR(t -> qZ) = 6.0 x 10(-6)) for an integrated luminosity of 2 ab(-1) at LHeC and FCC-he, respectively. (C) 2019 The Authors. Published by Elsevier B.V.en_US
dc.identifier.doi10.1016/j.nuclphysb.2019.114640
dc.identifier.issn0550-3213
dc.identifier.issn1873-1562
dc.identifier.scopus2-s2.0-85065896658en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1016/j.nuclphysb.2019.114640
dc.identifier.urihttps://hdl.handle.net/20.500.12491/9986
dc.identifier.volume944en_US
dc.identifier.wosWOS:000474194500008en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorŞenol, Abdülkadir
dc.institutionauthorDenizli, Haluk
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofNuclear Physics Ben_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectFCNCen_US
dc.titleProbing top quark FCNC tq gamma and tqZ couplings at future electron-proton collidersen_US
dc.typeArticleen_US

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