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تسجيل مستخدم جديدLow-energy theorems for nucleon-nucleon scattering at $M_{pi}=450$ MeV
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We apply the low-energy theorems to analyze the recent lattice QCD results for the two-nucleon system at a pion mass of $M_pisimeq 450$ MeV obtained by the NPLQCD collaboration. We find that the binding energies of the deuteron and dineutron are inconsistent with the low-energy behavior of the corresponding phase shifts within the quoted uncertainties and vice versa. Using the binding energies of the deuteron and dineutron as input, we employ the low-energy theorems to predict the phase shifts and extract the scattering length and the effective range in the $^3S_1$ and $^1S_0$ channels. Our results for these quantities are consistent with those obtained by the NPLQCD collaboration from effective field theory analyses but are in conflict with their determination based on the effective-range approximation.
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The interactions between two octet baryons are studied at low energies using lattice QCD (LQCD) with larger-than-physical quark masses corresponding to a pion mass of $m_{pi}sim 450$ MeV and a kaon mass of $m_{K}sim 596$ MeV. The two-baryon systems t
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