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题名: Study of the excited 1(-) charm and charm-strange mesons
作者: Li, Q ;  Jiang, Y ;  Wang, TH ;  Yuan, H ;  Wang, GL ;  Chang, CH
刊名: EUROPEAN PHYSICAL JOURNAL C
出版日期: 2017
卷号: 77, 期号:5, 页码:297
学科分类: Physics
DOI: http://dx.doi.org/10.1140/epjc/s10052-017-4865-y
通讯作者: Li, Q (reprint author), Harbin Inst Technol, Harbin 150001, Peoples R China.
文章类型: Article
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(D*K)/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.
类目[WOS]: Physics, Particles & Fields
关键词[WOS]: BETHE-SALPETER METHOD ;  P-WAVE MESONS ;  STRONG DECAYS ;  HEAVY-QUARK ;  B-C ;  EQUATION ;  CONSTANTS
项目资助者: National Natural Science Foundation of China (NSFC) [114050-37, 11575048, 11505039, 11447601, 11535002, 11675239] ;  PIRS of HIT [T201405, A201409, B201506]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/22059
Appears in Collections:理论物理所2017年知识产出_期刊论文

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Recommended Citation:
Li, Q,Jiang, Y,Wang, TH,et al. Study of the excited 1(-) charm and charm-strange mesons[J]. EUROPEAN PHYSICAL JOURNAL C,2017,77(5):297.
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