Novel flavour-changing neutral currents in the top quark sector [PDF]
25 pages, 9 ...
Maria Ramos +2 more
exaly +7 more sources
Flavour-changing neutral currents and leptophobic Z′ gauge bosons [PDF]
11 pages, LaTeX, no ...
David London
exaly +4 more sources
Scalar flavour-changing neutral currents in the large-tan(β) limit [PDF]
22 pages, Latex, 6 figures; v3: minor misprints corrected with respect to the published ...
Alessandra Retico, Gino Isidori
exaly +4 more sources
A search for flavour-changing neutral currents in b decay at petra
A study of the reaction e+e− → μ+μ−+ anything at a mean centre of mass energy of ≈35 GeV has been carried out to investigate the possible flavour-changing neutral current decay of the b quark. An upper limit of 0.7% at 95% CL has been placed on the branching ratio for this process.
Hugh McCann, Y Totsuka, I P Duerdoth
exaly +7 more sources
Flavour changing neutral currents, weak-scale scalars and rare top decays [PDF]
(some wording changed, and several references added) 13 pages, 2 figures included, uses harvmac.tex and epsf.tex, UCSD/PTH 93 ...
Martin Savage
exaly +3 more sources
Effects of terrestrial mirror fermions on flavour changing neutral currents
Abstract Effects of flavour changing neutral currents induced by mirror fermion contamination in ordinary fermions are investigated, especially on the K L − K S mass difference. It is shown that the effect is safely suppressed as far as “ordinary”-“mirror” mixings are sufficiently small (≲10 −2 –10 −3 ).
Katsuji Yamamoto, Isao Umemura
exaly +2 more sources
Spontaneous CP phases and flavour changing neutral currents in the left–right symmetric model [PDF]
LaTex File, 31 pages, no figures. Minor grammatical changes. References updated and one added.
Carlos Quimbay, Yeinzon Rodríguez
exaly +3 more sources
Natural suppression of flavour-changing neutral currents in supersymmetric gauge theories
Abstract Induced flavour-changing neutral currents (FCNC) in supersymmetric unified theories are investigated both in models with the standard SU(2)L × U(1) gauge symmetry and in models with an extra Ũ(1) gauge symmetry. Supersymmetric extension of the natural flavour conservation laws for neutral currents is obtained by adding a condition regarding ...
T Inami, C S Lim
exaly +2 more sources
Constraining flavour changing neutral currents with B→μ+μ−
Abstract We discuss the standard model prediction for the decay B→μ+μ−. We also look at this decay in models with two-Higgs doublets with and without the discrete symmetries that prevent FCNCs occuring at tree-level.
Martin Savage
exaly +2 more sources
Problems with the Breitenlohner-Maison γ5-scheme in flavour changing neutral currents
Abstract We calculate the flavour changing neutral current (FCNC) decay Z → Q q at one-loop order using two different γ 5 -prescriptions, namely the Breitenlohner-Maison-'t Hooft-Veltman (BM) γ 5 -scheme and a naively anticommuting γ 5 . The results obtained in the two schemes differ from one another.
H Grotch, K Schilcher, A Barroso
exaly +2 more sources

