We calculate the shape of the ππ and ¯ K N invariant mass distributions in the b → J/ψ π and b → J/ψ ¯ K N decays that are dominated by the (1405) resonance. The weak interaction part is the same for both processes and the hadronization into the different meson–baryon channels in the final state is given by symmetry arguments. The most important feature is the implementation of the meson–baryon...

We study d wave ππ scattering phase shift using a proper unitarization approach. It is verified that the f2(1270) resonance corresponds to a twin pole structure: one on the second sheet, another one on the third sheet. Also we find fair agreement on f2(1270) pole’s mass and width between our results and the PDG values. Besides, our analysis reveals the existence of a virtual state in this chann...

We study the first excited state of He in a microscopic {H + p,He + n} cluster model, including H and He distortions. The phenomenological S0 H+p scattering phase shift is well reproduced. We localize a complex pole of the S-matrix between the H+ p and He+n thresholds. The corresponding resonance parameters are Er = 93 keV position relative to H+p, and Γ = 390 keV width. A pole search is also p...

In sea-urchin eggs, once karyokinesis reaches metaphase or anaphase, the cleavage furrow can be formed even if the mitotic apparatus is destroyed (Swann & Mitchison, 1953) or removed (Hiramoto, 1956). A similar result was obtained in frog eggs (Kubota, 1966). In amphibian eggs a much longer time is available for performing experiments than in sea urchins as the furrow first appears at the anima...

The mass spectrum of the chargino–neutralino sector in the minimal supersymmetric standard model (MSSM) is calculated at the one-loop level, based on the complete set of one-loop diagrams. On-shell renormalization conditions are applied to determine the counterterms for the gaugino-mass-parameters M1,M2 and the Higgsino-mass parameter μ. The input is fixed in terms of three pole masses (two cha...

A synesthetic metaphor (e.g., sweet touch) is a metaphor that results from a combination of a modifier and a head, where both express different perceptual qualities. Most of the existing studies examine how the acceptability of synesthetic metaphors can be explained by the pairing of adjective modifier’s and head noun’s modalities. However, little attention has been given to cognitive effects e...

in this paper the control algorithm for controlled civil structures subjected to earthquake excitation is thoroughly investigated. the objective of this work is the control of structures by means of the pole placement algorithm, in order to improve their response against earthquake actions. successful application of the algorithm requires judicious placement of the closed-loop eigenvalues from ...

the mössbauer spectra of nanoferrite materials such as ni0.25mn0.75fe2o4, co0.5mn0.5fe2o4 and ni0.4co0.6fe2o4 have been reported and the above materials were prepared by sol-gel combustion method using metal nitrates as source material and polyvinyl alcohol(pva) as agglomeration reducing agent. as the structural, thermal and magnetic properties (vsm) of the above ferrites have been published al...