Proceedings of XXIX International Symposium on Lattice Field Theory — PoS(Lattice 2011) 2012
DOI: 10.22323/1.139.0123
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Potentials between pairs of static-light mesons

Abstract: We give an update on our ongoing investigations of potentials between pairs of static-light mesons, B(r)B(0) and B(r)B(0), in N f = 2 Lattice QCD, in different spin and isospin channels. The question of attraction and repulsion is particularly interesting with respect to the X(3872) charmonium state and charged candidates such as the Z + (4430). We employ the nonperturbatively improved Sheikholeslami-Wohlert fermion and the Wilson gauge actions at two lattice spacings a ≈ 0.084 fm and a ≈ 0.077 fm with a pseud… Show more

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