出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:We determine mass and flavour content of h and h0 states using Nf = 2+1+1 Wilson twisted mass lattice QCD. We describe how those flavour singlet states need to be treated in this lattice formulation. Results are presented for two values of the lattice spacing, a 0.08 fm and a 0.09 fm, with a range of light quark masses corresponding to values of the pion mass from 270 to 500 MeV and fixed bare strange and charm quark mass values.