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Determination of the mass of the LambdaLambda dibaryon by the method of QCD sum rules | | S. A. Larin
; V. A. Matveev
; A. A. Ovchinnikov
; A. A. Pivovarov
; | | Date: |
5 May 2004 | | Journal: | Sov.J.Nucl.Phys. 44 (1986) 690; Yad.Fiz. 44 (1986) 1066-1074 | | Subject: | hep-ph | | Abstract: | The method of QCD sum rules is used to calculate the mass of a hypothetical stable dihyperon H with the quantum numbers of two Lambda hyperons, whose existence was predicted by R.L. Jaffe [Phys. Rev. Lett. 31, 195, 617(E) (1977)] in the framework of the MIT quark-bag model. Within the accuracy of the method of QCD sum rules, which in the present case is 20%, the results obtained here agree with those of Jaffe. However, the method of sum rules does not make it possible to determine whether the mass of the dihyperon H lies above or below the Lambda Lambda threshold (i.e., whether H is stable). | | Source: | arXiv, hep-ph/0405035 | | Services: | Forum | Review | PDF | Favorites | |
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