1) neutral pseudo-scalar meson
中性赝标介子
1.
Then we depict electromagnetic decay effective theory of three neutral pseudo-scalar mesons ofπ~0﹑ηandη~* ( 958) respectively by the modified operator.
电磁相互作用拉氏密度量算子应满足的厄密性和规范不变性基本要求,同时还应满足Lorentz标量算子特性,而“传统”电磁衰变有效理论虽满足上述条件但不能同时很好地描述多个中性赝标介子电磁衰变成双光子的问题。
2) pseudoscalar meson
赝标介子
1.
The wavefunctions of light pseudoscalar mesons (π, K, η and η ) and the semileptonic transitions of heavy mesons (B, Bs, D and Ds) into them are analysed in detail within the Bethe-Sal-peter formalism.
在Bethe-Salpeter理论框架下,讨论轻赝标介子（π、K、η和η’）的波函数,求解重赝标介于（B、B1、D和D1）到这些轻赝标介子的跃迁。
3) pseudo-scalar meson theory
赝标量介子理论
4) light-heave pseudoscalar mesons scattering
轻赝标介子-重赝标介子散射
5) pseudovector meson
赝矢量介子
6) neutral meson
中性介子
1.
The Measurement of energetic photon produced in intermediate energy and relativistic energy heavy ion collisions provides opportunities for investigating many interesting and sophisticated problems such as properties of nuclear matter under extreme condition, bremsstrahlung, neutral meson production both below and above the production threshold in free nucleonnucleon collision.
高能光子探测为研究中高能重离子碰撞的许多重要问题如核物质性质、韧致辐射、阈下和阈上中性介子产生等提供了机遇。
补充资料：中性
1.谓不表示性别。 2.化学上指既不呈酸性又不呈碱性的性质，如纯水的性质。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条