Renormalization group evolution for the ΔS=1 effective Hamiltonian with Nf=2+1

• Main Authors: Lee, Weonjong., Adams, David H.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Science::Mathematics::Analysis
• Online Access: https://hdl.handle.net/10356/101196; http://hdl.handle.net/10220/18284
• Institution: Nanyang Technological University

We discuss the renormalization group (RG) evolution for the ΔS=1 operators in unquenched QCD with N f =3 (m u =m d =m s ) or, more generally, N f =2+1 (m u =m d ≠m s ) flavors. In particular, we focus on the specific problem of how to treat the singularities which show up only for N f =3 or N...