Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Aleks Smolkovič"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-44 (2024)
Abstract The Froggatt-Nielsen (FN) mechanism, a prominent framework for explaining the observed flavor hierarchies, generically predicts the existence of an axion-like particle (ALP). This work examines a class of FN models based on ℤ N discrete sy
Externí odkaz:
https://doaj.org/article/a82549dd499744f5acbe3b8a9b8324a5
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 11, Pp 1-42 (2023)
Abstract Exclusive semileptonic b hadron decays (b → uℓν) serve as a sandbox for probing strong and electroweak interactions and for extracting the CKM element V ub . Instead, this work investigates their underexplored potential to reveal new sh
Externí odkaz:
https://doaj.org/article/37e2942a56e7469481ffdba677052b70
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 10, Pp 1-47 (2023)
Abstract We explore CP-violating (CPV) effects of heavy New Physics in flavour-changing quark dipole transitions, within the framework of Standard Model Effective Field Theory (SMEFT). First, we establish the relevant dimension six operators and cons
Externí odkaz:
https://doaj.org/article/c99e0e911ccf4dd5aac2c70dde06b9e9
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 5, Pp 1-66 (2023)
Abstract Rare b hadron decays are considered excellent probes of new semileptonic four-fermion interactions of microscopic origin. However, the same interactions also correct the high-mass Drell-Yan tails. In this work, we revisit the first statement
Externí odkaz:
https://doaj.org/article/12122af27dd04fafb539dc285a785eb4
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 2, Pp 1-7 (2022)
Externí odkaz:
https://doaj.org/article/2829f0d07c0c487f9fcfdf7eb39ba07b
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 10, Pp 1-8 (2020)
Abstract We show that the current values of $$R_K^\mathrm {exp}$$ R K exp and $$R_{K^*}^\mathrm {exp}$$ R K ∗ exp can be accommodated by allowing a nonzero New Physics coupling $$\delta C_9^{\mu \mu }$$ δ C 9 μ μ to be complex, both in the scena
Externí odkaz:
https://doaj.org/article/196765cce0aa4923a0335f2f4f85c013
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 2, Pp 1-21 (2020)
Abstract We analyze the prospects of probing the C P -odd i κ ˜ t ¯ γ $$ i\tilde{\kappa}\overline{t}\gamma $$ 5 th interaction at the LHC and its projected upgrades, the high-luminosity and high-energy LHC, directly using associated on-shell Higg
Externí odkaz:
https://doaj.org/article/f76b02f84c984255b5aeb8f77d6bb8f9
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 10, Pp 1-50 (2019)
Abstract We introduce two anomaly free versions of Froggatt-Nielsen (FN) models, based on either G FN = U(1)3 or G FN = U(1) horizontal symmetries, that generate the SM quark and lepton flavor structures. The structure of these “inverted” FN mode
Externí odkaz:
https://doaj.org/article/4b9cbe4f790a48a2ad4df3bc0dcf8140
Publikováno v:
Nuclear Physics B, Vol 964, Iss , Pp 115328- (2021)
We use machine learning (ML) and non-ML techniques to study optimized CP-odd observables, directly and maximally sensitive to the CP-odd iκ˜t¯γ5th interaction at the LHC and prospective future hadron colliders using the final state with a Higgs b
Externí odkaz:
https://doaj.org/article/f7a5cdf9d00b44608520532ce06d217a
Publikováno v:
Symmetry, Vol 13, Iss 7, p 1129 (2021)
We summarize our recent proposals for probing the CP-odd iκ˜t¯γ5th interaction at the LHC and its projected upgrades directly using associated on-shell Higgs boson and top quark or top quark pair production. We first recount how to construct a CP
Externí odkaz:
https://doaj.org/article/d8b9929d41e643949b8088585afd1fb0