منابع مشابه
Vibrationally resolved decay width of interatomic Coulombic decay in HeNe.
We investigate the ionization of HeNe from below the He 1s3p excitation to the He ionization threshold. We observe HeNe+ ions with an enhancement by more than a factor of 60 when the He side couples resonantly to the radiation field. These ions are an experimental proof of a two-center resonant photoionization mechanism predicted by Najjari et al. [Phys. Rev. Lett. 105, 153002 (2010)]. Furtherm...
متن کاملHiggs decay width in multiscalar doublet models
We show that there are regions of parameter space in multiscalar doublet models where, in the first few hundred inverse femtobarns of data, the new charged and neutral scalars are not directly observable at the LHC and yet the Higgs decay rate to b b is changed significantly from its standard model value. For a light Higgs with a mass less than 140 GeV, this can cause a large change in the numb...
متن کاملTheoretical determination of ηb’s electromagnetic decay width
First evidence of ηb was given in 2001 by ALEPH [1]. The search for ηb is done in the decay channel into two photons. One candidate event is found in the six–charged particle final state and none in the four–charged particle final state, giving the upper limits: Γ(ηb → γγ) × BR(ηb → 4 charged particles) < 48 eV , Γ(ηb → γγ) × BR(ηb → 6 charged particles) < 132 eV . This observation was the main...
متن کاملElectroweak corrections to the toponium decay width
We discuss one-loop electroweak corrections to the decay width of toponium. We calculate the energy-level shifts by expanding around the solution of the Bethe-Salpeter equation in the instantaneous approximation, in analogy with the positronium case. We show that first-order electroweak effects are suppressed by at least four powers of the strong coupling constant, and are therefore negligible ...
متن کاملNarrow width of a glueball decay into two mesons
The widths of a glueball decay to two pions or kaons are analyzed in the pQCD framework. Our results show that the glueball ground state has small branching ratio for two-meson decay mode, which is around 10−2. The predicted values are consistent with the data of ξ → ππ,KK if ξ particle is a 2++ glueball. Applicability of pQCD to the glueball decay and comparison with χcJ decay are also discuss...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review C
سال: 2016
ISSN: 2469-9985,2469-9993
DOI: 10.1103/physrevc.94.014003