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Higgsy
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Does anyone know any good references for discussion of ##\overline{MS}## theory in phi^4 theory?
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I think it is discussed in "Critical Properties of phi^4 theories" By H.Kleinert and V Schulte-Frohlinde.Higgsy said:Does anyone know any good references for discussion of ##\overline{MS}## theory in phi^4 theory?
The notation "##\overline{MS}##" stands for the modified minimal subtraction scheme, which is a method used in theoretical physics to renormalize divergent quantities in quantum field theories.
The modified minimal subtraction scheme differs from other renormalization schemes in the way it treats the ultraviolet divergences. It subtracts the pole terms in the dimensional regularization method and then modifies the remaining terms to remove the dependence on the renormalization scale.
The modified minimal subtraction scheme is commonly used in scalar theory references because it is a relatively simple and efficient method for handling divergences in quantum field theories. It also has the advantage of producing physically meaningful results that are independent of the renormalization scale.
While the modified minimal subtraction scheme is widely used, it does have some limitations. It may not be suitable for all types of calculations and can sometimes lead to unphysical results. In addition, it is not always straightforward to implement and may require additional calculations to improve accuracy.
The modified minimal subtraction scheme does not change the predictions of scalar theory, but rather provides a method for handling divergences and improving the accuracy of calculations. It allows for a consistent and systematic approach to renormalization, which in turn leads to more reliable predictions. However, the choice of renormalization scheme can affect the numerical values of the predicted quantities.