5 papers
Flavor Symmetry Breaking in the 1/N Expansion
Jin Dai, Roger Dashen, Elizabeth Jenkins +1
The breaking of flavor SU(3) symmetry in the axial couplings and magnetic moments of baryons is analyzed in the expansion. A simple meson loop graph which is known to be of…
Spin-Flavor Structure of Large N Baryons
Roger Dashen, Elizabeth Jenkins, Aneesh V. Manohar
The spin-flavor structure of large N baryons is described in the 1/N expansion of QCD using quark operators. The complete set of quark operator identities is obtained, and used to…
The 1/N Expansion for Baryons
Roger Dashen, Elizabeth Jenkins, Aneesh V. Manohar
A systematic expansion in 1/N is constructed for baryons in QCD. Predictions of the 1/N expansion at leading and subleading order for baryon axial current coupling constant ratios…
1/N Corrections to the Baryon Axial Currents in QCD
Roger Dashen, Aneesh V. Manohar
We prove that the 1/N corrections to the baryon axial current matrix elements are proportional to their lowest order values. This implies that the first correction to axial current…
Baryon-Pion Couplings from Large-N QCD
Roger Dashen, Aneesh V. Manohar
We derive a set of consistency conditions for the pion-baryon coupling constants in the large-N limit of QCD. The consistency conditions have a unique solution which are precisely…