منابع مشابه
Color chiral solitons
We discuss specific features of color chiral solitons (asymptotics, possibility of confainment and quantization) at an example of isolated SU(2) color skyrmions, i.e. skyrmions in a background field which is the vacuum field forming the gluon condensate. Introduction In low energy QCD the idea of flavor Skyrmions [1, 2, 4, 5] was quite fruitful. Color chiral solitons and skyrmions were studied ...
متن کاملof Chiral Perturbation Theory
BES II data for J/Ψ → K * (890)Kπ reveal a strong κ peak in the Kπ S-wave near threshold. Both magnitude and phase are determined in slices of Kπ mass by interferences with strong K 0 (1430), K 1 (1270) and K 1 (1400) signals. The phase variation with mass agrees within errors with LASS data for Kπ elastic scattering. A combined fit is presented to both BES and LASS data. The fit uses a Breit-W...
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The system of coupled nonlinear evolution equations describing gap solitons is shown to be approximately equivalent in the neighborhood of the soliton solution to the massive Thirring model. The equivalence is then used for construction of the perturbation theory for gap solitons based on the RiemannHilbert problem. The value of deviation of the initial condition from the gap soliton shape serv...
متن کاملChiral Perturbation Theory
Abstract. The charged kaon decay channel K l3γ allows for studies of direct CP violation, possibly due to non-standard mechanisms, with the help of T -odd correlation variables. In order to be able to extract a CP -violating signal from experiment, it is necessary to understand all possible Standard Model phases that also produce T -odd asymmetries. We complement earlier studies by considering ...
متن کاملApplied Chiral Perturbation Theory
I consider some selected topics in chiral perturbation theory (CHPT) as probed at colliders such as DAΦNE. Emphasis is put on processes involving pions in the isospin zero S-wave which require multi-loop calculations. These include the scalar form factor of the pion, two–photon fusion into pion pairs and Kl4–decays. The physics of the chiral anomaly is briefly touched upon INVITED LECTURE SUMME...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2009
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2008.05.023