Zobrazeno 1 - 10
of 220
pro vyhledávání: '"Fulvia De Fazio"'
Autor:
Andrzej J. Buras, Fulvia De Fazio
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 3, Pp 1-21 (2023)
Abstract Motivated by the improved results from the HPQCD lattice collaboration on the hadronic matrix elements entering ∆M s,d in B s , d 0 − B ¯ s , d 0 $$ {B}_{s,d}^0-{\overline{B}}_{s,d}^0 $$ mixings and the increase of the experimental bran
Externí odkaz:
https://doaj.org/article/c0991238d1454d3885ea28f0b93e760a
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-31 (2021)
Abstract We perform a detailed analysis of flavour changing neutral current processes in the charm sector in the context of 331 models. As pointed out recently, in the case of Z′ contributions in these models there are no new free parameters beyond
Externí odkaz:
https://doaj.org/article/88cb595962d64bc589a92b59779520b2
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 2, Pp 1-37 (2020)
Abstract We consider scenarios with a heavy Z′ gauge boson with flavour non-universal quark and lepton couplings with the goal to illustrate how the cancellation of gauge anomalies generated by the presence of an additional U(1)′ gauge symmetry w
Externí odkaz:
https://doaj.org/article/d3975b24e72d440b968ad5c56c78ad1d
Publikováno v:
Particles, Vol 3, Iss 1, Pp 145-163 (2020)
Anomalies recently observed in semileptonic b → c ℓ - ν ¯ ℓ and b → s ℓ + ℓ - transitions point to violation of Lepton Flavour Universality. Strategies for new analyses of different modes are required, in particular for the modes induce
Externí odkaz:
https://doaj.org/article/a89b7a5967144db7ac3df6a075529435
Publikováno v:
Physics Letters B, Vol 760, Iss C, Pp 335-340 (2016)
We study a set of exclusive decay modes of the Standard Model Higgs boson into a vector meson and a dilepton pair: h→Vℓ+ℓ−, with V=ϒ,J/ψ,ϕ, and ℓ=μ,τ, determining the decay rates, the dilepton mass spectra and the V longitudinal helici
Externí odkaz:
https://doaj.org/article/cf29cc2e30ac43caac3de7b965a0715a
Autor:
Andrzej J. Buras, Fulvia De Fazio
Publikováno v:
Journal of High Energy Physics
Motivated by the improved results from the HPQCD lattice collaboration on the hadronic matrix elements entering $\Delta M_{s,d}$ in $B_{s,d}^0-\bar B_{s,d}^0$ mixings and the increase of the experimental branching ratio for $B_s\to\mu^+\mu^-$, we upd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19e6beece9a842d2a8c9e2d545b29af0
http://arxiv.org/abs/2301.02649
http://arxiv.org/abs/2301.02649
Publikováno v:
Physical Review D. 106
Publikováno v:
Physical Review D. 104
The increasing number of flavour anomalies calls for the investigation of new processes where tensions similar to the observed ones could emerge. Observables sensitive to physics beyond the Standard Model need to be identified. We discuss the inclusi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9f807f17bdda15770b408c5e6bede49
http://arxiv.org/abs/2111.10116
http://arxiv.org/abs/2111.10116
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-31 (2021)
Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-31 (2021)
We perform a detailed analysis of flavour changing neutral current processes in the charm sector in the context of 331 models. As pointed out recently, in the case of Z′ contributions in these models there are no new free parameters beyond those al