1.8k citations · 15.8k across the 261 of their papers we have counts for
12 papers · 2 filters
m_pi and N_c dependence of resonances from Unitarized Chiral Perturbation Theory
G. Rios, C. Hanhart, J. R. Pelaez
We review our studies on the rho and sigma resonances properties derived from the Inverse Amplitude Method. In particular, we study the leading behavior of the resonances m…
Heavy quarkonium: progress, puzzles, and opportunities
N. Brambilla, S. Eidelman, B. K. Heltsley +64
A golden age for heavy quarkonium physics dawned a decade ago, initiated by the confluence of exciting advances in quantum chromodynamics (QCD) and an explosion of related experime…
Light meson mass dependence of the positive parity heavy-strange mesons
Martin Cleven, Feng-Kun Guo, Christoph Hanhart +1
We calculate the masses of the resonances D_{s0}^*(2317) and D_{s1}(2460) as well as their bottom partners as bound states of a kaon and a D^*- and B^*-meson, respectively, in unit…
Effect of charmed meson loops on charmonium transitions
Feng-Kun Guo, Christoph Hanhart, Gang Li +2
The effects of intermediate charmed mesons on charmonium transitions with the emission of one pion or eta are studied systematically. Based on a non-relativistic effective field th…
Extracting the light quark mass ratio m_u/m_d from bottomonia transitions
Feng-Kun Guo, Christoph Hanhart, Ulf-G. Meißner
We propose a new method to extract the light quark mass ratio using the bottomonia transitions. The decay amplitudes are dominated by the light quark…
Two- and three-body structure of the Y(4660)
P. Hagen, H. -W. Hammer, C. Hanhart
We study general features of three-meson bound states using the Y(4660) as an example. Here the Y(4660) is assumed to be either a two-body bound state of the f_0(980), itself a bou…