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By Yue-Liang Wu

Professor Kuang-Chao Chou (also referred to as Guang-Zhao Zhou) is the previous President of chinese language Academy of Sciences. He has been elected because the Academician of chinese language Academy of Sciences, overseas affiliate of the U.S. nationwide Academy of Sciences, Fellow of the 3rd international Academy of technology, overseas Member of Soviet (Russian) Academy of Sciences, Czechoslovak Academy of Sciences, Bulgarian Academy of Sciences, Romania Academy of Sciences, Mongolian Academy of Sciences, the ecu Academy of Arts, Sciences and arts, Membre fondateur Academie Francophone d'Ingenieurs. He additionally served because the director of Institute of Theoretical Physics on the chinese language Academy of Sciences, the Dean of the technology university of Tsinghua college, the Chairman of the China organization for Sciences and expertise, the President of Pacific technology organization, vp of 3rd international Academy of Sciences. This quantity offers a suite of chosen papers written by means of Prof Chou. The papers are prepared into 4 components in line with the topic of analysis parts and the language of publishing journals. half I (in English) and half III (in chinese language) are papers on box theories, particle physics and nuclear physics, half II (in English) and half IV (in chinese language) are papers on statistical physics and condensed topic physics. From the printed papers, it illustrates and is obviously obtrusive how Prof Chou was once regularly on the frontiers of theoretical physics in numerous classes and performed artistic study works experimenting with preliminary rules and motivations, in addition to how he has pushed and labored in numerous key study instructions of theoretical physics, thinking about which he has made major contributions to numerous attention-grabbing study components and interdisciplinary fields.

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Selected Papers of K C Chou (20th Century Physics) (World Scientific Series 20th Century Physics)

Professor Kuang-Chao Chou (also referred to as Guang-Zhao Zhou) is the previous President of chinese language Academy of Sciences. He has been elected because the Academician of chinese language Academy of Sciences, overseas affiliate of the united states nationwide Academy of Sciences, Fellow of the 3rd international Academy of technological know-how, international Member of Soviet (Russian) Academy of Sciences, Czechoslovak Academy of Sciences, Bulgarian Academy of Sciences, Romania Academy of Sciences, Mongolian Academy of Sciences, the ecu Academy of Arts, Sciences and arts, Membre fondateur Academie Francophone d'Ingenieurs.

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Consequently in the new Gell-Mann theory the process of the decay of a 11'0 meson into two 1'-rays takes place only through a K interaction. If it is assumed that fJ interactions of baryons also have Gell-Mann's global symmetry. then we can obtain a few other selection rules. Consider. " It is clear that this Hamiltonian changes sign under the substitution (2). Thus the matrix elements for the fJ-decay of a 11'+ meson. that is through a virtual baryon-pair. cancel each other in pairs. These processes also are allowed only through a K interaction.

This symmetry property of the Gell-Mann theory provides us with selection rules for certain processes. Let us consider processes in which there are only 11' mesons and photons in the initial and final states. For every Feynman diagram there will be another diagram in which the lines of the inner baryons are replaced by the propagation lines of the baryons appearing in the right-hand sides of the substitution (2). For example. e •• by the lines proton lines are replaced by the lines of the baryon described by the field operator of an anti S --particle).

We now pose the problem of expressing M and N in terms of the operators R and J which we have introduced. For M this has already been done. It remains only to express the spatial polar vector K in terms of P and J. It can be shown that if Rx, By. , for example. [N, R 1 ,: if i;o' j). then K cannot be expressed in terms of J and P only so as to satisfy all the commutation relations for N. This means that if K is constructed from P and J alone, then [R, P lk and Jk are not the spatial components of a fourdimensional tensor of the second rank.

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