Multichannel calculation of the very narrow Ds0 *(2317) and the very broad D0 *(2300-2400)

Abstract

Multichannel calculation of the very narrow D * s0 (2317) and the very broad D * 0 (2300-2400

Higher excitations of theDandDsmesons

“…[13,14], while in [19] (the second paper) these two resonances are considered as the same 1 3 D 1 state with J P ¼ 1 À . These new data are extremely important for the theory to better understand the q " Q dynamics and test predictions made in a large variety of models [15][16][17][18][19][20][21][22][23][24][25], some of which were made long ago [15,16]. For low-lying states, the theoretical predictions are mostly in agreement with experiment within 20-50 MeV accuracy, although the parameters used may be very different.…”

“…The quantum numbers and decay modes of the new resonances were intensely discussed in a large number of recent studies [7][8][9][10][11][12][13][14] and also before in [15][16][17][18][19][20][21][22][23][24][25]. For D Ã s1 ð2710Þ the quantum numbers J P ¼ 1 À were assigned [4,7], although the analysis in Ref.…”

“…The relatively narrow resonance D sJ ð2860Þ with À ¼ 48 AE 3ðstatÞ MeV is mostly considered as the L ¼ 2 state with J P ¼ 3 À [8][9][10], while in Ref. [25] the resonance with close values of the mass and width has the quantum numbers J P ¼ 0 þ . The wide resonance D sJ ð3040Þ is mostly assumed to be the 2P state with J P ¼ 1 þ [11].…”

“…It has become understood that the dynamics of the D sJ ð1PÞ multiplet is different for the states with the total angular momentum of the s quark j s ¼ 1=2 and j s ¼ 3=2 [21][22][23][24][25] and the bispinor structure of the D s ð1PÞ wave function (w.f.) and the w.f.…”

D sJ (2317) meson production at RHIC

“…In [3], a coupled-channel quark model has been used to study the production of a two-quark D sJ (2317) meson and its radial excitations in hadronic reactions. Production of D sJ (2317) in relativistic heavy ion collisions has also been studied [4].…”