Search for flavor-changing neutral current interactions of the top quark mediated by a Higgs boson in proton-proton collisions at 13 TeV
Yazarlar (1)
Prof. Dr. Hasan OĞUL Sinop Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Physical Review D (Q1) | ||
| Dergi ISSN | 2470-0010 Dergi Bilgileri (2025) | ||
| Makale Dili | İngilizce | Basım Tarihi | 08-2025 |
| Cilt / Sayı / Sayfa | 112 / 3 / – | DOI | 10.1103/95q6-vvlp |
| Makale Linki | https://bura.brunel.ac.uk/handle/2438/32964 | ||
| UAK Araştırma Alanları |
Fen Bilimleri ve Matematik
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| Özet |
| A search for flavor-changing neutral current interactions of the top quark (𝑡) and the Higgs boson (𝐻) is presented. The search is based on proton-proton collision data collected in 2016–2018 at a center-of-mass energy of 13 TeV with the CMS detector at the LHC, and corresponding to an integrated luminosity of 138 fb⁻¹. Events containing a pair of leptons with the same-sign electric charge and at least one jet are considered. The results are used to constrain the branching fraction (ℬ) of the top quark decaying to a Higgs boson and an up (𝑢) or charm (𝑐) quark. No significant excess above the estimated background was found. The observed (expected) upper limits at a 95% confidence level are found to be 0.072% (0.059%) for ℬ(𝑡→𝐻𝑢) and 0.043% (0.062%) for ℬ(𝑡 →𝐻𝑐). These results are combined with two other searches performed by the CMS Collaboration for flavor-changing neutral current interactions of top quarks and Higgs bosons in final states where the Higgs boson decays to either a pair of photons or a pair of bottom quarks. The resulting observed (expected) upper limits at the 95% confidence level are 0.019% (0.027%) for ℬ(𝑡 →𝐻𝑢) and 0.037% (0.035%) for ℬ(𝑡 →𝐻𝑐). |
| Anahtar Kelimeler |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 3 |
| Scopus | 4 |
| Google Scholar | 14 |