シグマ粒子
シグマ
リスト
[JP = 1⁄2+
[クォーク |
I | JP | Q (e) | S | C | B' | T | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
シグマ[1] | uus | 1,189.37 ± 0.07 | 1 | 1⁄2+ | +1 | ?1 | 0 | 0 | 0 | 8.018 ± 0.026 × 10?11 | p+ + n0 + | |
シグマ[2] | usd | 1,192.642 ± 0.024 | 1 | 1⁄2+ | 0 | ?1 | 0 | 0 | 0 | 7.4 ± 0.7 × 10?20 | ||
シグマ[3] | dds | 1,197.449 ± 0.030 | 1 | 1⁄2+ | ?1 | ?1 | 0 | 0 | 0 | 1.479 ± 0.011 × 10?10 | n0 + | |
チャームシグマ[4] | uuc | 2,454.02 ± 0.18 | 1 | 1⁄2 + | +2 | 0 | +1 | 0 | 0 | 3.0 ± 0.4 × 10?22[a] | ||
チャームシグマ[4] | udc | 2,452.9 ± 0.4 | 1 | 1⁄2 + | +1 | 0 | +1 | 0 | 0 | >1.4 × 10?22[a] | ||
チャームシグマ[4] | ddc | 2,453.76 ± 0.18 | 1 | 1⁄2 + | 0 | 0 | +1 | 0 | 0 | 3.0 ± 0.5 × 10?22[a] | ||
ボトムシグマ[5] | uub | 5,807.8+3.7 ?3.9 |
1 | 1⁄2 + | +1 | 0 | 0 | ?1 | 0 | |||
ボトムシグマ† | udb | Unknown | 1 | 1⁄2 + | 0 | 0 | 0 | ?1 | 0 | |||
ボトムシグマ[5] | ddb | 5,815.2 ± 2.7 | 1 | 1⁄2 + | ?1 | 0 | 0 | ?1 | 0 | |||
トップシグマ† | uut | ? | 1 | 1⁄2 + | +2 | 0 | 0 | 0 | +1 | ? | ? | |
トップシグマ† | udt | ? | 1 | 1⁄2 + | +1 | 0 | 0 | 0 | +1 | ? | ? | |
トップシグマ† | ddt | ? | 1 | 1⁄2 + | 0 | 0 | 0 | 0 | +1 | ? | ? |
† ^ Particle currently unobserved, but predicted by the standard model.
[a] ^ PDG reports the resonance width (
[b] ^ The specific values of the name has not been decided yet, but will likely be close to
b(5810).
JP = 3⁄2+
[クォーク |
I | JP | Q (e) | S | C | B' | T | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
シグマ[6] | uus | 1,382.8 ± 0.4 | 1 | 3⁄2+ | +1 | ?1 | 0 | 0 | 0 | 1.84 ± 0.04 × 10?23[c] | ||
シグマ[6] | uds | 1,383.7 ± 1.0 | 1 | 3⁄2+ | 0 | ?1 | 0 | 0 | 0 | 1.8 ± 0.3 × 10?23[c] | ||
シグマ[6] | dds | 1,387.2 ± 0.5 | 1 | 3⁄2+ | ?1 | ?1 | 0 | 0 | 0 | 1.67 ± 0.09 × 10?23[c] | ||
チャームシグマ[7] | uub | 2,518.4 ± 0.6 | 1 | 3⁄2 + | +2 | 0 | +1 | 0 | 0 | 4.4 ± 0.6 × 10?23[c] | ||
チャームシグマ[7] | udc | 2,517.5 ± 2.3 | 1 | 3⁄2 + | +1 | 0 | +1 | 0 | 0 | >3.9 × 10?23[c] | ||
チャームシグマ[7] | ddc | 2,518.0 ± 0.5 | 1 | 3⁄2 + | 0 | 0 | +1 | 0 | 0 | 4.1 ± 0.5 × 10?23[c] | ||
ボトムシグマ† | uub | 1 | 3⁄2 + | +1 | 0 | 0 | ?1 | 0 | ||||
ボトムシグマ† | udb | 1 | 3⁄2 + | 0 | 0 | 0 | ?1 | 0 | ||||
ボトムシグマ† | ddb | 1 | 3⁄2 + | ?1 | 0 | 0 | ?1 | 0 | ||||
トップシグマ† | uut | ? | 1 | 3⁄2 + | +2 | 0 | 0 | 0 | +1 | ? | ? | |
トップシグマ† | udt | ? | 1 | 3⁄2 + | +1 | 0 | 0 | 0 | +1 | ? | ? | |
トップシグマ† | ddt | ? | 1 | 3⁄2 + | 0 | 0 | 0 | 0 | +1 | ? | ? |
出典
[- ^ C.Amsler et al. (2008): Particle listings ?
Σ +
- ^ C.Amsler et al. (2008): Particle listings ?
Σ 0
- ^ C.Amsler et al. (2008): Particle listings ?
Σ −
- ^ a b c C.Amsler et al. (2008): Particle listings ?
Σ
c(2455) - ^ a b T. Aaltonen et al. (2007a)
- ^ a b c C.Amsler et al. (2008): Particle listings ?
Σ (1385) - ^ a b c C.Amsler et al. (2008): Particle listings ?
Σ
c(2520)
外部 リンク
[- C.Amsler et al. (2008). “Review of Particle Physics”. Physics Letters B (Particle Data Group) 667 (1): 1. doi:10.1016/j.physletb.2008.07.018.
- J. G. Körner, M. Krämer, and D. Pirjol (1994). “Heavy Baryons”. Progress in Particle and Nuclear Physic 33: 787–868. doi:10.1016/0146-6410(94)90053-1. arXiv:hep-ph/9406359.
- T. Aaltonen et al. (2007a). “First Observation of Heavy Baryons Bottom Sigma and Bottom Sigma*”. Physical Review Letters (Collider Detector at Fermilab Collaboration) 99: 202001. doi:10.1103/PhysRevLett.99.202001. arXiv:0706.3868.