期刊
PHYSICAL REVIEW D
卷 94, 期 12, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.94.125026
关键词
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资金
- U.S. National Science Foundation [NSF-PHY-16-1620628]
- Division Of Physics
- Direct For Mathematical & Physical Scien [1620628, 1316617] Funding Source: National Science Foundation
We investigate whether the six-loop beta function of the lambda phi(4)(4) theory exhibits evidence for an ultraviolet zero. As part of our analysis, we calculate and analyze Pade approximants to this beta function. Extending our earlier results at the five-loop level, we find that in the range of lambda where the perturbative calculation of the six-loop beta function is reliable, the theory does not exhibit robust evidence for an ultraviolet zero.
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