2011/05/30 by Zhi-Yong Zhou, Zhiguang Xiao · 1 citation
Physics and Astronomy · #hep-ph #hep-ex #nucl-th
paper · pdf · doi:10.1103/physrevd.84.034023
published as Phys.Rev.D84:034023,2011 · 9 pages, 1 figure
arxiv created 2011/05/30 · arxiv updated 2011/09/08
The hadron loop effect is conjectured to be important in understanding discrepancies between the observed states in experiments and the theoretical expectations of non-relativistic potential model. We present that, in an easily operable procedure, the hadron loop effect could shift the poles downwards to reduce the differences and provide better descriptions of both the masses and the total widths, at least, of the radial quantum number n=1 charmed and charmed-strange states. The 11P1-13P1 mixing phenomena could be naturally explained due to their couplings with common channels. The newly observed D states are also addressed, but there are still some problems remaining unclear.