نتایج جستجو برای: برهمکنشهایπ π
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Biological Electronic, Optical Properties, and Vibrational Analysis of 1-benzyl-4-formyl-1H-pyrrole 3carboxamide are studied by using a combination of DFT/B3LYP method and 6-311G (d, p) basis set. Optimized parameters of the title molecule are well-matched with the experiments. The NLO properties of 1-benzyl-4-formyl-1H-pyrrole 3carboxamide have been examined with the help of Polarizability...
We have measured the ratio R S = Γ(KS → π π(γ))/Γ(KS → π π) with the KLOE detector at the DAΦNE ee collider. This measurement is fully inclusive with respect to the ππγ final state. The sample of over 10 two-pion decays of tagged KS mesons allows a statistical error as low as ∼ 0.1% to be obtained. The accuracy is limited by systematic uncertainties, which are estimated primarily from data. We ...
We study the processes e+e−→2(π+π−)π0π0π0γ and 2(π+π−)π0π0ηγ in which an energetic photon is radiated from initial state. The data were collected with BABAR detector at SLAC. About 14 000 4700 events, respectively, are selected a sample corresponding to integrated luminosity of 469 fb−1. invariant mass hadronic final state defines effective e+e− center-of-mass energy. energies range threshold 4...
M. Ablikim a, M.N. Achasov i,1, S. Ahmed n, M. Albrecht d, A. Amoroso bc,be, F.F. An a, Q. An az,2, J.Z. Bai a, O. Bakina z, R. Baldini Ferroli t, Y. Ban ah, D.W. Bennett s, J.V. Bennett e, N. Berger y, M. Bertani t, D. Bettoni v, J.M. Bian ax, F. Bianchi bc,be, E. Boger z,3, I. Boyko z, R.A. Briere e, H. Cai bg, X. Cai a,2, O. Cakir ar, A. Calcaterra t, G.F. Cao a, S.A. Cetin as, J. Chai be, J...
a 0 (980)− f 0 (980) mixing in χ c1 → π 0 f 0 (980)→ π 0 π + π − and χ c1 → π 0 a 0 (980)→ π 0 π 0 η
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