pith. sign in

arxiv: 1410.0137 · v1 · pith:3K7M3AYSnew · submitted 2014-10-01 · ✦ hep-ph

bar D^*D^*₀ and bar B^*B^*₀ (1^--) molecules at N2LO from QSSR

classification ✦ hep-ph
keywords qssrmoleculesn2loresultsb-factorycandidatescannotcondensates
0
0 comments X
read the original abstract

We estimate the $\bar D^*D^*_0$ and $\bar B^*B^*_0(1^--)$ molecules masses and couplings using QCD spectral sum rules (QSSR)known perturbatively to N2LO of PT series and including the contributions of non-perturabtive condensates up to the dimension-eight. Our results improve earlier LO results obtained from QSSR in the current literature. We obtain $M_{D^*D^*_0} = 5244(228)$ MeV which is heavier than the experimental candidates Y(4260); Y(4360); Y(4660) suggesting that they cannot be pure molecule states. We predict $M_{B^*B^*_0}= 11920(159)$ MeV to be tested in B-factory experiments.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.