1998/09/30 by Shi-Lin Zhu · 5 citations
Physics and Astronomy · #Nuclear physics research studies #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #nucl-th
paper · pdf · doi:10.1103/physrevc.59.435
published as Phys.Rev.C59:435-441,1999 · Several references and discussion of final results added, final version to appear in Phys. Rev. C
arxiv created 1998/10/14 · openalex publication_date 1999/01/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We study the two point correlation function of two nucleon currents sandwiched between the vacuum and the rho meson state. The light cone QCD sum rules are derived for the \ensuremathρNN vector and tensor couplings simultaneously. The contribution from the excited states and the continuum is subtracted cleanly through the double Borel transform with respect to the two external momenta, p12, p22=(p\ensuremath-q)2. Our results are g_\ensuremathρ=2.5\ifmmode±\else\textpm\fi0.2, \ensuremathκ_\ensuremathρ=(8.0\ifmmode±\else\textpm\fi2.0), in good agreement with the values used in the nuclear forces.