Two Aspects of One Loop Structure: Unitarity Delay in the Standard Model and Modular Invariance in String Theory
- Stanford Univ., Stanford, CA (United States)
We study two aspects of one loop structures in quantum field theories which describe two different areas of particle physics: the one loop unitarity behavior of the Standard Model of electroweak interactions and modular invariance of string model theory. Loop expansion has its importance in that it contains quantum fluctuations due to all physical states in the theory. Therefore, by studying the various models to one loop, we can understand how the contents of the theory can contribute to physically measurable quantities and how the consistency at quantum level restricts the physical states of the theory, as well.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC02-76SF00515;
- OSTI ID:
- 1454052
- Report Number(s):
- SLAC-R--349
- Country of Publication:
- United States
- Language:
- English
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