M. Nielsen

activity

20052008

most cited

X (3872) \to J / ψ π^{+} π^{-}

and

X (3872) \to J / ψ π^{+} π^{-} π^{0}

decay widths from QCD sum rules

64 citations · 110 across the 4 of their papers we have counts for

collaborators

Showing 2008Show all

2 papers · 1 filter

hep-ph2008

Review and interpretation of the new heavy states discovered at the $B$ -factories

Marina Nielsen

I discuss some recent discoveries in the spectroscopy of the charmonium-like resonances, and some of their theoretical interpretations are reviewed.

hep-ph2008★ 46 cited

The meson $Z^{+} (4430)$ as a tetraquark state

M. E. Bracco, S. H. Lee, M. Nielsen +1

We test the validity of the QCD sum rules applied to the meson $Z^{+} (4430)$ , by considering a diquark-antidiquark type of current with $J^{P} = 0^{-}$ and with $J^{P} = 1^{-}$ . We find…

Review and interpretation of the new heavy states discovered at the B-factories

The meson Z+(4430) as a tetraquark state

Review and interpretation of the new heavy states discovered at the $B$ -factories

The meson $Z^{+} (4430)$ as a tetraquark state