Study of the excited 1(-) charm and charm-strange mesons

doi:http://dx.doi.org/10.1140/epjc/s10052-017-4865-y

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	Study of the excited 1(-) charm and charm-strange mesons
	Chang, CH; Li, Q; Jiang, Y; Wang, TH; Yuan, H; Wang, GL; Li, Q (reprint author), Harbin Inst Technol, Harbin 150001, Peoples R China.
刊名	EUROPEAN PHYSICAL JOURNAL C
	2017
卷号	77 期号:5 页码:297
DOI	http://dx.doi.org/10.1140/epjc/s10052-017-4865-y
英文摘要	We give a systematical study on the recently reported excited charm and charm-strange mesons with potential 1(-) spin-parity, including the D-s1(2700)(+), D(2860)(+), D-1(2600)(0), D(2650), D(2680)(0) and D-s1 (2760)(0). The main strong decay properties are obtained in the framework of Bethe-Salpeter (BS) methods. Our results reveal that the two 1(-) charm-strange mesons can be well described by the further 2(3)S(1)-1(3)D(1) mixing scheme with a mixing angle of (8.7(-3.2)(+3.9))degrees. The predicted decay ratio B(DK)/B(D K) for D-s1(2860) is 0.62(-0.12)(+0.22). D(2600)(0) can also be explained as the 23S1 predominant state with a mixing angle of -(7.5(-3.3)(+4.0))degrees. Considering the mass range, D(2650)(0) and D-1(2680)(0) are more likely to be the 2(3)S(1) predominant states, although the total widths under the two 2(3)S(1) and 1(3)D(1) assignments have no great conflict with the current experimental data. The calculated width for the LHCb D-1(2760)(0) seems to be about 100 MeV larger than the experimental measurement if taking it as 1(3)D(1) or 1(3)D(1) dominant state c (u) over bar. The comparisons with other calculations and several important decay ratios are also presented. For the identification of these 1(-) charm mesons, further experimental information, such as B(D pi)/B(D*pi), is necessary.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/22059]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Li, Q (reprint author), Harbin Inst Technol, Harbin 150001, Peoples R China.
推荐引用方式 GB/T 7714	Chang, CH,Li, Q,Jiang, Y,et al. Study of the excited 1(-) charm and charm-strange mesons[J]. EUROPEAN PHYSICAL JOURNAL C,2017,77(5):297.
APA	Chang, CH.,Li, Q.,Jiang, Y.,Wang, TH.,Yuan, H.,...&Li, Q .(2017).Study of the excited 1(-) charm and charm-strange mesons.EUROPEAN PHYSICAL JOURNAL C,77(5),297.
MLA	Chang, CH,et al."Study of the excited 1(-) charm and charm-strange mesons".EUROPEAN PHYSICAL JOURNAL C 77.5(2017):297.