$\gamma N \to \Delta$ transition form factors in Quenched and $N_F=2$ QCD

A. Tsapalis (Univ. of Cyprus); Boston Univ.); C. Alexandrou (Univ. of Cyprus); H. Neff (Univ. of Athens; J. W. Negele (MIT); K. Schilling (Univ. of Wuppertal); Ph. de Forcrand (CERN & ETH Zurich); Th. Lippert (Univ. of Wuppertal); W. Schroers (MIT)

arxiv: hep-lat/0309041 · v1 · submitted 2003-09-10 · ✦ hep-lat

γ N to Delta transition form factors in Quenched and N_F=2 QCD

C. Alexandrou (Univ. of Cyprus) , Ph. de Forcrand (CERN & ETH Zurich) , Th. Lippert (Univ. of Wuppertal) , H. Neff (Univ. of Athens , Boston Univ.) , J. W. Negele (MIT) , K. Schilling (Univ. of Wuppertal) , W. Schroers (MIT)

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A. Tsapalis (Univ. of Cyprus)

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classification ✦ hep-lat

keywords deltagammaquadrupolequenchedtransitionamplitudescalculationscoulomb

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Calculations of the magnetic dipole, electric quadrupole and Coulomb quadrupole amplitudes for the transition $\gamma N\to \Delta$ are presented both in quenched QCD and with two flavours of degenerate dynamical quarks.

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γ N to Delta transition form factors in Quenched and N_F=2 QCD

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