نتایج جستجو برای: kaon
تعداد نتایج: 2504 فیلتر نتایج به سال:
The modifications of kaon properties in pion matter are investigated. In isotopically symmetric pionic matter the kaon mass (energy) does not change in lowest order chiral perturbation theory which describes the interaction between pseudoscalar mesons. At non-vanishing isovector densities the in-medium corrections to the kaon mass are found to be quite small, i.e. less than three MeV. However, ...
We describe possible kaon physics goals to achieve with a high luminosity Φ−factory. We motivate the relevance to improve the present bounds on CPT kaon physics quantities. Also, the interferometer machine Φ−factory is useful to study CP violating/conserving effects in kaon decays. Thus we investigate K → 3π amplitudes: charge asymmetries are interesting in charged kaon decays. In the case of n...
We discuss the role of kaon-nucleon and nucleon-nucleon correlations in kaon condensation in dense matter. Correlations raise the threshold density for kaon condensation, possibly to densities higher than those encountered in stable neutron stars.
In this overview, I discuss some of the open issues in Kaon physics. After briefly touching on lattice calculations of Kaon dynamics and tests of CPT, my main focus of attention is on ǫ ′ /ǫ and on constraints on the CKM model. The impact of rare K-decays and of experiments with B-mesons for addressing the issue of CP-violation is also discussed. The importance of looking for signals of flavor-...
In a one-pion plus one-kaon exchange model, we calculate the kaon production cross sections in nucleon-nucleon, nucleon-delta and delta-delta interactions. We find that this model describes reasonably well the experimental data on kaon production in the proton-proton interaction. Near the kaon production threshold, the cross section obtained from this model is smaller than that from the linear ...
We present measurements of three-dimensional correlation functions of like-sign, low-transverse-momentum kaon pairs from √ s NN = 200 GeV Au + Au collisions. A Cartesian surface-spherical harmonic decomposition technique was used to extract the kaon source function. The latter was found to have a three-dimensional Gaussian shape and can be adequately reproduced by Therminator event-generator si...
We review recent progress in calculating kaon spectrum, pseudoscalar meson decay constants, B K , ε ¡ £ ¢ ε, K ¤ ππ matrix elements, kaon semileptonic form factors, and moments of kaon distribution amplitudes on the lattice. We also address the issue of how best to improve the staggered fermion formulation for the action and operators.
We review recent progress in calculating kaon spectrum, pseudoscalar meson decay constants, B K , ε ′ /ε, K → ππ matrix elements, kaon semileptonic form factors, and moments of kaon distribution amplitudes on the lattice. We also address the issue of how best to improve the staggered fermion formulation for the action and operators.
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