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Monte Carlo Calculation of Phase Shift in Four Dimensional O(4) $phi^4$ Theory | | Jun Nishimura
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26 Jul 1992 | | Journal: | Phys. Lett. B294 (1992) 375-379 | | Subject: | hep-lat hep-th | | Abstract: | The phase shift of the O(4) symmetric $phi^4$ theory in the symmetric phase is calculated numerically using the relation between phase shift and energy levels of two-particle states recently derived by Lüscher. The results agree with the prediction of perturbation theory. A practical difficulty of the method for a reliable extraction of the phase shift for large momenta due to the necessity of a precise determination of excited two-particle energy levels is pointed out. | | Source: | arXiv, hep-lat/9207028 | | Services: | Forum | Review | PDF | Favorites | |
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