A Method of Renormalization for Unstable Particles
نویسندگان
چکیده
منابع مشابه
On the Field Renormalization Constant for Unstable Particles
A recently proposed normalization condition for the imaginary part of the selfenergy of an unstable particle is shown to lead to a closed expression for the field renormalization constant Z. In turn, the exact expression for Z is necessary, in some important cases, in order to avoid power-like infrared divergences in high orders of perturbation theory. In the same examples, the width plays the ...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1957
ISSN: 0033-068X
DOI: 10.1143/ptp.17.30