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4 papers · 2 filters
1/N_c Corrections in Meson-Baryon Scattering
Herry J. Kwee, Richard F. Lebed
Corrections to meson/ground-state baryon scattering amplitudes in the 1/N_c expansion of QCD have previously been shown to be controlled by the t-channel difference |I_t - J_t| of…
pi N --> Multi-pi N Scattering in the 1/N_c Expansion
Herry J. Kwee, Richard F. Lebed
We extend the 1/N_c expansion meson-baryon scattering formalism to cases in which the final state contains more than two particles. We first show that the leading-order large N_c p…
Deeply virtual Compton scattering beyond next-to-leading order: the flavor singlet case
K. Kumericki, D. Müller, K. Passek-Kumericki +1
We study radiative corrections to deeply virtual Compton scattering in the kinematics of HERA collider experiments to next--to--leading and next--to--next--to--leading order. In th…
The Large N_c Baryon-Meson I_t = J_t Rule Holds for Three Flavors
Richard F. Lebed
It has long been known that nonstrange baryon-meson scattering in the 1/N_c expansion of QCD greatly simplifies when expressed in terms of t-channel exchanges: The leading-order am…