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小 (机器人:修正重定向;整理源码) |
小 (机器人:自动替换格式) |
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| caption = <span style="font-family: Arial;">π</span>介子的[[夸克]]构成。 |
| caption = <span style="font-family: Arial;">π</span>介子的[[夸克]]构成。 |
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| num_types = 3 |
| num_types = 3 |
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| composition = <span style="font-family: Arial;">π</span><sup>+</sup>:u<font style="text-decoration: overline">d</font><br |
| composition = <span style="font-family: Arial;">π</span><sup>+</sup>:u<font style="text-decoration: overline">d</font><br><span style="font-family: Arial;">π</span><sup>0</sup>:d<font style="text-decoration: overline">d</font> / u<font style="text-decoration: overline">u</font><br><span style="font-family: Arial;">π</span><sup>−</sup>:d<font style="text-decoration: overline">u</font> |
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| family = [[玻色子]] |
| family = [[玻色子]] |
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| group = [[介子]] |
| group = [[介子]] |
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| discovered = |
| discovered = |
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| symbol = <span style="font-family: Arial;">π</span><sup>+</sup>、<span style="font-family: Arial;">π</span><sup>0</sup>和<span style="font-family: Arial;">π</span><sup>−</sup> |
| symbol = <span style="font-family: Arial;">π</span><sup>+</sup>、<span style="font-family: Arial;">π</span><sup>0</sup>和<span style="font-family: Arial;">π</span><sup>−</sup> |
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| mass = <span style="font-family: Arial;">π</span><sup>±</sup>:139.57018(35) [[電子伏特|MeV]]/[[光速|c]]<sup>2</sup><br |
| mass = <span style="font-family: Arial;">π</span><sup>±</sup>:139.57018(35) [[電子伏特|MeV]]/[[光速|c]]<sup>2</sup><br><span style="font-family: Arial;">π</span><sup>0</sup>:134.9766(6) [[電子伏特|MeV]]/[[光速|c]]<sup>2</sup> |
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|mean_lifetime = π</span><sup>±</sup>:2.6×10<sup>-8</sup>s |
|mean_lifetime = π</span><sup>±</sup>:2.6×10<sup>-8</sup>s |
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π</span><sup>0</sup>:8.4×10<sup>-17</sup>s |
π</span><sup>0</sup>:8.4×10<sup>-17</sup>s |
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| decay_time = <span style="font-family: Arial;">π</span><sup>±</sup>:2.6×10<sup>−8</sup>s,<span style="font-family: Arial;">π</span><sup>0</sup>:8.4×10<sup>−17</sup> |
| decay_time = <span style="font-family: Arial;">π</span><sup>±</sup>:2.6×10<sup>−8</sup>s,<span style="font-family: Arial;">π</span><sup>0</sup>:8.4×10<sup>−17</sup> |
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| decay_particle = |
| decay_particle = |
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| electric_charge = <span style="font-family: Arial;">π</span><sup>±</sup>:±[[元电荷|e]]<br |
| electric_charge = <span style="font-family: Arial;">π</span><sup>±</sup>:±[[元电荷|e]]<br><span style="font-family: Arial;">π</span><sup>0</sup>:0 |
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| color_charge = |
| color_charge = |
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| spin = 0 |
| spin = 0 |
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! class=unsortable|粒子名称 |
! class=unsortable|粒子名称 |
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! 粒子<br |
! 粒子<br>符号 |
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! 反粒子<br |
! 反粒子<br>符号 |
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! class=unsortable|夸克<br |
! class=unsortable|夸克<br>构成<ref name=PDGQuarkmodel>C. Amsler ''et al.''. (2008): [http://pdg.lbl.gov/2008/reviews/quarkmodrpp.pdf Quark Model]</ref> |
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! [[静止质量]] ([[電子伏特|MeV]]/[[光速|c]]<sup>2</sup>) |
! [[静止质量]] ([[電子伏特|MeV]]/[[光速|c]]<sup>2</sup>) |
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! width="50"|[[同位旋|I]]<sup>[[G宇称|G]]</sup> |
! width="50"|[[同位旋|I]]<sup>[[G宇称|G]]</sup> |