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Table 14.4 The Hadrons Baryon Surangeness Number Charm Number Main Decay Symbol particle (MeV/e) Lifesime (s) Modes Particle Ami- Mass Mean Number Name Spin Mesons 26 x 10 84 x 10-17 2y Pion 140 Self 135 K- K A' 'r. 2 Kaon K* 494 1.2 x 10 1 K K 8.9 x 10-11 KI x 10 498 1 498 1 Eta Self 548 5x 10- 2y, S. D- 1.0 x 10 12 , K, K, K* + anything Charmed 1870 1 D's D 1866 4.1 x 10 Same as D+ D 1968 50 x 10-1 Varikous 1 Bonom B's B 5279 Various B 1.6 x 10-12 1.5 x 10-12 7.1 x 10- 5279 Various Self 3097 Various Upsilon Y(IS) Self 9460 1.2 x 10- Various Baryons Proon 9883 Stable (?) 1 Neutron 989.6 886 1 Lambda A. 1116 26 x 10- pr. 1 -1 Σ 8.0 x 10-11 pa", ** 7.4 x 10 1.5 x 10 1189 -1 1193 Ay Σ 1197 Xi 1315 29 x 10 A -2 1322 1.6 х 10 " Omega 1672 0.82 x 10 10 AK, E -3 Charmed lambda 2286 20 x 10 1 Various Review of Particle Physics, K. Nakamura et al. (Paricle Dara Group). Journal of Physia G37, 075021 (2010) - - . S .

Table 14.4 The Hadrons Baryon Surangeness Number Charm Number Main Decay Symbol particle (MeV/e) Lifesime (s) Modes Particle Ami- Mass Mean Number Name Spin Mesons 26 x 10 84 x 10-17 2y Pion 140 Self 135 K- K A' 'r. 2 Kaon K* 494 1.2 x 10 1 K K 8.9 x 10-11 KI x 10 498 1 498 1 Eta Self 548 5x 10- 2y, S. D- 1.0 x 10 12 , K, K, K* + anything Charmed 1870 1 D's D 1866 4.1 x 10 Same as D+ D 1968 50 x 10-1 Varikous 1 Bonom B's B 5279 Various B 1.6 x 10-12 1.5 x 10-12 7.1 x 10- 5279 Various Self 3097 Various Upsilon Y(IS) Self 9460 1.2 x 10- Various Baryons Proon 9883 Stable (?) 1 Neutron 989.6 886 1 Lambda A. 1116 26 x 10- pr. 1 -1 Σ 8.0 x 10-11 pa", ** 7.4 x 10 1.5 x 10 1189 -1 1193 Ay Σ 1197 Xi 1315 29 x 10 A -2 1322 1.6 х 10 " Omega 1672 0.82 x 10 10 AK, E -3 Charmed lambda 2286 20 x 10 1 Various Review of Particle Physics, K. Nakamura et al. (Paricle Dara Group). Journal of Physia G37, 075021 (2010) - - . S .

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Explain the unusually short lifetime of the ∑0 relative to the other hyperons (baryons with nonzero strangeness numbers) shown in Table

Table 14.4 The Hadrons Baryon Surangeness Number Charm Number Main Decay Symbol particle (MeV/e) Lifesime (s) Modes Particle Ami- Mass Mean Number Name Spin Mesons 26 x 10 84 x 10-17 2y Pion 140 Self 135 K- K A' 'r. 2 Kaon K* 494 1.2 x 10 1 K K 8.9 x 10-11 KI x 10 498 1 498 1 Eta Self 548 5x 10- 2y, S. D- 1.0 x 10 12 , K, K, K* + anything Charmed 1870 1 D's D 1866 4.1 x 10 Same as D+ D 1968 50 x 10-1 Varikous 1 Bonom B's B 5279 Various B 1.6 x 10-12 1.5 x 10-12 7.1 x 10- 5279 Various Self 3097 Various Upsilon Y(IS) Self 9460 1.2 x 10- Various Baryons Proon 9883 Stable (?) 1 Neutron 989.6 886 1 Lambda A. 1116 26 x 10- pr. 1 -1 Σ 8.0 x 10-11 pa", ** 7.4 x 10 1.5 x 10 1189 -1 1193 Ay Σ 1197 Xi 1315 29 x 10 A -2 1322 1.6 х 10 " Omega 1672 0.82 x 10 10 AK, E -3 Charmed lambda 2286 20 x 10 1 Various Review of Particle Physics, K. Nakamura et al. (Paricle Dara Group). Journal of Physia G37, 075021 (2010) - - . S .
Transcribed Image Text:Table 14.4 The Hadrons Baryon Surangeness Number Charm Number Main Decay Symbol particle (MeV/e) Lifesime (s) Modes Particle Ami- Mass Mean Number Name Spin Mesons 26 x 10 84 x 10-17 2y Pion 140 Self 135 K- K A' 'r. 2 Kaon K* 494 1.2 x 10 1 K K 8.9 x 10-11 KI x 10 498 1 498 1 Eta Self 548 5x 10- 2y, S. D- 1.0 x 10 12 , K, K, K* + anything Charmed 1870 1 D's D 1866 4.1 x 10 Same as D+ D 1968 50 x 10-1 Varikous 1 Bonom B's B 5279 Various B 1.6 x 10-12 1.5 x 10-12 7.1 x 10- 5279 Various Self 3097 Various Upsilon Y(IS) Self 9460 1.2 x 10- Various Baryons Proon 9883 Stable (?) 1 Neutron 989.6 886 1 Lambda A. 1116 26 x 10- pr. 1 -1 Σ 8.0 x 10-11 pa", ** 7.4 x 10 1.5 x 10 1189 -1 1193 Ay Σ 1197 Xi 1315 29 x 10 A -2 1322 1.6 х 10 " Omega 1672 0.82 x 10 10 AK, E -3 Charmed lambda 2286 20 x 10 1 Various Review of Particle Physics, K. Nakamura et al. (Paricle Dara Group). Journal of Physia G37, 075021 (2010) - - . S .
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