An Infrared Renormalization Group Limit Cycle in QCD

Details An Infrared Renormalization Group Limit Cycle in QCD An Infrared Renormalization Group Limit Cycle in QCD

2003-09-11

arxiv.org/abs/nucl-th/0309030v2

Physics

Nuclear Physics

Nuclear Theory

Talk given by Eric Braaten at Few-Body 17, June 2003, Durham, NC, USA, 3 pages, 1 figure, uses espcrc1.sty, new abstract

Scientific paper

We conjecture that QCD can be tuned to an infrared limit cycle in the three-nucleon system by adjusting the up and down quark masses to critical values at which the binding energies of the deuteron and its spin-singlet partner are tuned to zero. At the critical point, the triton would have infinitely many arbitrarily-shallow excited states with the ratio of the binding energies of successive states approaching a universal constant close to 515.

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