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Table 14.4 The Hadrons Baryon Number Strangeness Number Charm Mass (MeV/c) Мean Lifetime (s) Particle Name Anti- Main Decay Number Symbol particle Modes Spin B Mesons Pion 140 2.6 x 10 Self 135 8.4 X 10-17 2y 1.2 x 10* 8.9 x 10- 5.1 x 10-* Kaon K* K 494 K K. K 498 *, 2 498 ev, 3n", Eta Self 548 5 x 10-19 2y, Sa". e, K*, K°, K" + anything Charmed D* D 1870 1.0 x 10-12 1 D's D" 1865 4.1 x 10-15 Same as D* D D, 1968 5.0 X 10-15 Various 1 1 Bottom B's B 5279 1.6 x 10-12 Various B' 5279 1.5 x 10-12 Various J/Psi Upsilon J/ 3097 7.1 x 10- Various Self Y(1S) Self 9460 1.2 x 10 Various Bагyons Proton 938.3 Stable (?) 1 Neutron 939.6 886 pe 1 Lambda 1116 2.6 x 10-0 Sigmas 1189 8.0 x 10"11 1193 7.4 X 10 0 Ay 1197 1.5 x 10-10 Xi 1315 2.9 x 10-1o 1.6 x 10-0 0.82 x 10-10 AK", E 1322 Omega 1672 1 -3 Charmed 2286 2.0 x 10-1s Various 1 lambda Review of Particle Physics, K. Nakamura et al. (Particle Data Group), Journal of Physics G37, 075021 (2010)

Table 14.4 The Hadrons Baryon Number Strangeness Number Charm Mass (MeV/c) Мean Lifetime (s) Particle Name Anti- Main Decay Number Symbol particle Modes Spin B Mesons Pion 140 2.6 x 10 Self 135 8.4 X 10-17 2y 1.2 x 10* 8.9 x 10- 5.1 x 10-* Kaon K* K 494 K K. K 498 *, 2 498 ev, 3n", Eta Self 548 5 x 10-19 2y, Sa". e, K*, K°, K" + anything Charmed D* D 1870 1.0 x 10-12 1 D's D" 1865 4.1 x 10-15 Same as D* D D, 1968 5.0 X 10-15 Various 1 1 Bottom B's B 5279 1.6 x 10-12 Various B' 5279 1.5 x 10-12 Various J/Psi Upsilon J/ 3097 7.1 x 10- Various Self Y(1S) Self 9460 1.2 x 10 Various Bагyons Proton 938.3 Stable (?) 1 Neutron 939.6 886 pe 1 Lambda 1116 2.6 x 10-0 Sigmas 1189 8.0 x 10"11 1193 7.4 X 10 0 Ay 1197 1.5 x 10-10 Xi 1315 2.9 x 10-1o 1.6 x 10-0 0.82 x 10-10 AK", E 1322 Omega 1672 1 -3 Charmed 2286 2.0 x 10-1s Various 1 lambda Review of Particle Physics, K. Nakamura et al. (Particle Data Group), Journal of Physics G37, 075021 (2010)

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Use the values in Table of the mean lifetime for the J/Ψ and upsilon [ (1S)] mesons to determine their full-width Γ values. Compare your results with Γ for the charged pion, which has the longest lifetime of any meson.

Table 14.4 The Hadrons Baryon Number Strangeness Number Charm Mass (MeV/c) Мean Lifetime (s) Particle Name Anti- Main Decay Number Symbol particle Modes Spin B Mesons Pion 140 2.6 x 10 Self 135 8.4 X 10-17 2y 1.2 x 10* 8.9 x 10- 5.1 x 10-* Kaon K* K 494 K K. K 498 *, 2 498 ev, 3n", Eta Self 548 5 x 10-19 2y, Sa". e, K*, K°, K" + anything Charmed D* D 1870 1.0 x 10-12 1 D's D" 1865 4.1 x 10-15 Same as D* D D, 1968 5.0 X 10-15 Various 1 1 Bottom B's B 5279 1.6 x 10-12 Various B' 5279 1.5 x 10-12 Various J/Psi Upsilon J/ 3097 7.1 x 10- Various Self Y(1S) Self 9460 1.2 x 10 Various Bагyons Proton 938.3 Stable (?) 1 Neutron 939.6 886 pe 1 Lambda 1116 2.6 x 10-0 Sigmas 1189 8.0 x 10"11 1193 7.4 X 10 0 Ay 1197 1.5 x 10-10 Xi 1315 2.9 x 10-1o 1.6 x 10-0 0.82 x 10-10 AK", E 1322 Omega 1672 1 -3 Charmed 2286 2.0 x 10-1s Various 1 lambda Review of Particle Physics, K. Nakamura et al. (Particle Data Group), Journal of Physics G37, 075021 (2010)
Transcribed Image Text:Table 14.4 The Hadrons Baryon Number Strangeness Number Charm Mass (MeV/c) Мean Lifetime (s) Particle Name Anti- Main Decay Number Symbol particle Modes Spin B Mesons Pion 140 2.6 x 10 Self 135 8.4 X 10-17 2y 1.2 x 10* 8.9 x 10- 5.1 x 10-* Kaon K* K 494 K K. K 498 *, 2 498 ev, 3n", Eta Self 548 5 x 10-19 2y, Sa". e, K*, K°, K" + anything Charmed D* D 1870 1.0 x 10-12 1 D's D" 1865 4.1 x 10-15 Same as D* D D, 1968 5.0 X 10-15 Various 1 1 Bottom B's B 5279 1.6 x 10-12 Various B' 5279 1.5 x 10-12 Various J/Psi Upsilon J/ 3097 7.1 x 10- Various Self Y(1S) Self 9460 1.2 x 10 Various Bагyons Proton 938.3 Stable (?) 1 Neutron 939.6 886 pe 1 Lambda 1116 2.6 x 10-0 Sigmas 1189 8.0 x 10"11 1193 7.4 X 10 0 Ay 1197 1.5 x 10-10 Xi 1315 2.9 x 10-1o 1.6 x 10-0 0.82 x 10-10 AK", E 1322 Omega 1672 1 -3 Charmed 2286 2.0 x 10-1s Various 1 lambda Review of Particle Physics, K. Nakamura et al. (Particle Data Group), Journal of Physics G37, 075021 (2010)
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