Towards an Understanding of the New Charm and Charm-Strange Mesons

Abstract

The observation of the D_{sJ}^*(2317), D_{sJ}(2460), and SELEX D^*_{sJ}(2632) states with properties differing considerably from what was expected has led to a renewed interest in hadron spectroscopy. In addition to these states, non-strange partners of the D_{sJ} states have also been observed. Understanding the D_0^* and D_1' states can provide important insights into the D_{sJ} states. In this contribution I examine quark model predictions for the D_0^* and D_1' states and discuss experimental measurements that can shed light on them. I find that these states are well described as the broad, j=1/2 non-strange charmed P-wave mesons. In the latter part of this writeup I discuss the c bar{s} possibilities for the SELEX D^*_{sJ}(2632) and measurements that can shed light on it.

Talk presented at the 1st Meeting of the APS Topical Group on Hadronic Physics (Fermilab, Oct 24-26, 2004). 4 pages uses jpconf

References in corpus (7)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Excited Charmed Mesons: Observations, Analyses and Puzzles
• Mass of D*_sJ(2317) and Coupled Channel Effect
• The coupled-channel analysis of the D and D_s mesons
• On the mass differences between the scalar and pseudoscalar heavy-light mesons
• Options for the SELEX state D$_{s\J}^+(2632)$
• A note on possible interpretations for the $D_{SJ}^{+}(2632)$ observed by SELEX

Cited by in corpus (4)

• Dynamics and Decay of Heavy-Light Hadrons
• Properties of the Charmed P-wave Mesons
• Open-charm meson spectroscopy
• Theoretical Overview: The New Mesons