当前位置: X-MOL 学术Phys. Rev. D › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Decay processes of a pseudoscalarD(2900)
Physical Review D ( IF 5 ) Pub Date : 2021-12-03 , DOI: 10.1103/physrevd.104.116002
Brenda B. Malabarba 1 , K. P. Khemchandani 2 , A. Martínez Torres 1
Affiliation  

We study the decay properties of a D(2900) state, with spin parity 0, whose existence was proposed in an earlier study of the DKK¯ and coupled-channel system. It was found in the former work that a D meson appears with a mass of about 2900 MeV from the three-body dynamics while the charmless subsystem of the pseudoscalar mesons forms the f0(980) resonance. Motivated by the recent experimental investigations of D mesons around 3000 MeV, we now study the two-body decays of D(2900). We find that the nature of the said state sets the main decay channels to be D*π, Ds*K¯ and Ds0*(2317)K¯. It turns out that decay width to the last one is the largest, making the Ds0*(2317)K¯ system to be the most favorable one to look for a signal of D(2900). We compare the decay properties of our state with those of the D-meson states, proposed within quark models, near 3000 MeV. We hope that our findings and discussions can be useful for the future experimental investigations of charm mesons around 3000 MeV.

中文翻译:

伪标量D(2900)的衰减过程

我们研究了一个的衰减特性 D(2900) 状态,自旋奇偶校验 0-,其存在是在较早的研究中提出的 D¯和耦合通道系统。在之前的工作中发现,D 从三体动力学中,介子的质量约为 2900 MeV,而伪标量介子的无魅力子系统形成了 F0(980)谐振。受到最近的实验研究的启发D 大约 3000 MeV 的介子,我们现在研究二体衰变 D(2900). 我们发现所述状态的性质将主要衰减通道设置为D*π, D*¯D0*(2317)¯. 事实证明,到最后一个的衰减宽度最大,使得D0*(2317)¯ 系统是最有利于寻找信号的系统 D(2900). 我们将我们状态的衰减特性与D-介子态,在夸克模型中提出,接近 3000 MeV。我们希望我们的发现和讨论对未来 3000 MeV 左右的粲介子的实验研究有用。
更新日期:2021-12-03
down
wechat
bug