16. Theory of theC-Meson
نویسندگان
چکیده
منابع مشابه
Large-Nc meson theory
We derive an effective Lagrangian for meson fields. This is done in the light-cone gauge for two-dimensional large-Nc QCD by using the bilocal auxiliary field method. The auxiliary fields are bilocal on light-cone space and their Fourier transformation determines the parton momentum distribution. As the first test of our method, the ’t Hooft equation is derived from the effective Lagrangian. E-...
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I discuss the theoretical status of the 'soft' pomeron and its place in describing generic diffractive processes. The role of perturbative QCD (pQCD) corrections is considered, in particular in the context of quasi-elastic vector meson production at high Q 2. In those processes where short distances are dominant, the 'hard' (pQCD) pomeron is expected to reveal itself, such a process may well be...
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We obtain an explicit method to compute the cd-index of the lattice of regions of an oriented matroid from the ab-index of the corresponding lattice of flats. Since the cd-index of the lattice of regions is a polynomial in the ring Z(c, 2d), we call it the c-2d-index. As an application we obtain a zonotopal analogue of a conjecture of Stanley: among all zonotopes the cubical lattice has the sma...
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I review the NLO QCD calculations of the branching ratio for B → Xsγ in the SM. Including the leading electromagnetic corrections, one obtaines BR(B → Xsγ) = (3.32±0.30)×10−4. Confronting theory with the newest data, an updated value for |Vts| is obtained: |Vts| = 0.037±0.007. Theoretical progress on the photon energy spectrum is also discussed. The inclusive FCNC semileptonic decays in the SM ...
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1. It was first suggested by Yukawa(1) that the to mesons are un stableand disintegrate spontaneously each into an electron and a neu trino.This assumption was added to his meson theory of nuclear forces in order to account for the beta-decay of the radioactive nuclei, which can then be considered as the virtual emission of a rueson by a nuelear particle and the subsequent decay of the meson. T...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics Supplement
سال: 1991
ISSN: 0375-9687
DOI: 10.1143/ptps.105.193