The nucleon-antinucleon interaction
نویسندگان
چکیده
منابع مشابه
Nucleon-antinucleon interaction from the Skyrme model.
We calculate the nucleon-antinucleon static potential in the Skyrme model using the product ansatz and including some finite NC (number of colors) corrections. The mid and long range part of the spin-spin and tensor force are correctly given in both iso-spin channels while the central interaction has insufficient mid-range attraction. This is a well known problem of the product ansatz that shou...
متن کاملNucleon-Antinucleon Interaction from the Skyrme Model: II
We calculate the full static interaction of a Skyrmion and an anti-Skyrmion as a function of separation and relative grooming. From this, using projection methods and Born-Oppenheimer mixing, we obtain the nucleon antinucleon interaction. We find agreement with the major features of the empirical interaction including the strong central attraction and the sharp onset of annihilation at about 1 fm.
متن کاملThe Antinucleon–nucleon Interaction at Low Energy: Annihilation Dynamics
The general properties of antiproton–proton annihilation at rest are presented, with special focus on the two-meson final states. The data exhibit remarkable dynamical selection rules: some allowed annihilation modes are suppressed by one order of magnitude with respect to modes of comparable phase-space. Various phenomenological analyses are reviewed, based on microscopic quark dynamics or sym...
متن کاملCoherent pion radiation from nucleon-antinucleon annihilation.
A unified picture of nucleon antinucleon annihilation into pions emerges from a classical description of the pion wave produced in annihilation and the subsequent quantization of that wave as a coherent state. When the constraints of energy-momentum and iso-spin conservation are imposed on the coherent state, the pion number distribution and charge ratios are found to be in excellent agreement ...
متن کاملNucleon-Antinucleon Interaction from the Skyrme Model: II. Beyond the Product Ansatz
We calculate the full static interaction of a Skyrmion and an anti-Skyrmion as a function of separation and relative grooming. From this, using projection methods and Born-Oppenheimer mixing, we obtain the nucleon antinucleon interaction. We find agreement with the major features of the empirical interaction including the strong central attraction and the sharp onset of annihilation at about 1 fm.
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 1984
ISSN: 0375-9474
DOI: 10.1016/0375-9474(84)90469-x