Determination of the mass of the. lambda lambda. dibaryon by the method of QCD sum rules

Journal Article · Wed Oct 01 04:00:00 EDT 1986 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:6640469

Larin, S A; Matveev, V A; Ovchinnikov, A A; Pivovarov, A A

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).

• Research Organization: Institute of Nuclear Research, USSR Academy of Sciences
• OSTI ID: 6640469
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 44:4; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BOUND STATE
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
FIELD THEORIES
HADRONS
HYPERONS
LAMBDA BARYONS
LAMBDA PARTICLES
MASS
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
STRANGE PARTICLES
SUM RULES