Progesterone
发表于 2025-3-25 06:28:16
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忧伤
发表于 2025-3-25 09:53:48
Renormalization Theory,rangian or the Hamiltonian is not necessarily trivial, we first review the scattering theory in non-relativistic quantum mechanics. The formal system discussed here has many similarities with the S-matrix theory based on the reduction formula given in the previous chapter.
托运
发表于 2025-3-25 12:04:10
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Engaging
发表于 2025-3-25 16:06:56
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不能仁慈
发表于 2025-3-25 21:17:13
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花束
发表于 2025-3-26 01:28:10
,-Matrix,e particles is included in the S-matrix. It is the most fundamental quantity in elementary particle physics. Although the S-matrix can in principle be determined if the Lagrangian density is known, it is hard to compute in practice. Here we will discuss how to compute the S-matrix using perturbation
扩音器
发表于 2025-3-26 07:00:29
Discrete Symmetries,ion laws hold in both classical and quantum theories. In contrast, discrete symmetries such as space inversion and charge conjugation are specific to quantum theory, where there are several kinds of conservation law that do not arise classically. Since physically observable quantities always vary co
后来
发表于 2025-3-26 10:23:45
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确认
发表于 2025-3-26 16:19:15
Renormalization Theory,erpretation is called a renormalization theory. The basic idea of such a formalism is to specify a way of separating the Lagrangian density into the free part and the interaction part. This grouping is related to the definition of the interaction picture. We call the interaction picture defined by t
不适
发表于 2025-3-26 20:26:07
Classification of Hadrons and Models,ing of hadrons, and in this chapter, we shall turn to a more phenomenological discussion about such issues, including the group-theoretical classification of hadrons, the quark model, the parton model, and so on.