Four loop perturbative expansion for the lattice n vector model
Oct, 199529 pages
Published in:
- Nucl.Phys.B 455 (1995) 619-647
e-Print:
- hep-lat/9510015 [hep-lat]
Report number:
- IFUP-TH-28-95
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Abstract:
We compute the four-loop contributions to the -function and the anomalous dimension of the field for the -invariant -vector model. These results are used to compute the second analytic corrections to the correlation length and the general spin- susceptibility.Note:
- 29 pages, to appear in Nucl. Phys. B, latex, subeqnar, epsf styles needed, one figure, available also as postscript at <a href="http://www1.le.infn.it:8080/caraccio/95.html">this http URL</a> Report-no: IFUP-TH 28/95
- model: vector
- lattice field theory
- symmetry: O(N)
- renormalization: beta function
- correlation: length
- susceptibility
- correction: higher-order
- numerical calculations
- expansion 1/N
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