A Lattice Study of the Glue in the Nucleon

R. Horsley , R. Millo , Y. Nakamura , H. Perlt , D. Pleiter , P. E. L. Rakow , G. Schierholz , A. Schiller

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F. Winter J. M. Zanotti

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classification ✦ hep-lat hep-phnucl-th

keywords methodnucleonactionadditionalcalculatechromo-electricchromo-magneticcomponents

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By introducing an additional operator into the action and using the Feynman-Hellmann theorem we describe a method to determine both the quark line connected and disconnected terms of matrix elements. As an illustration of the method we calculate the gluon contribution (chromo-electric and chromo-magnetic components) to the nucleon mass.

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A Lattice Study of the Glue in the Nucleon

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