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| Author | : Hans-Joachim Wenzel |
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| Total Pages | : 126 |
| Release | : 1993 |
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| Total Pages | : 0 |
| Release | : 1993 |
| Genre | : |
| ISBN | : |
| Author | : Hans-Joachim Wenzel |
| Publisher | : |
| Total Pages | : 126 |
| Release | : 1993 |
| Genre | : |
| ISBN | : |
| Author | : Hans-Joachim Wenzel |
| Publisher | : |
| Total Pages | : 126 |
| Release | : 1993 |
| Genre | : |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 131 |
| Release | : 1993 |
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| Total Pages | : |
| Release | : 2005 |
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Measurements of the average b-hadron lifetime using inclusive B [yields] J/[psi]X events, the individual B[sub u] and B[sub d] lifetimes and their ratio using exclusive B [yields] [psi]K events, and the B[sub s] lifetime using semileptonic B[sub s] lifetime using semileptonic B[sub s] [yields] l[nu]D[sub 3]X events are presented. The results were obtained from a 21.3 pb[sup [minus]1] sample of [radical]s = 1.8 TeV [bar p]p collisions collected in 1992--93 at the Fermilab Tevatron collider and required the precise position measurements of the recently installed CDF silicon vertex detector.
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| Total Pages | : 994 |
| Release | : 1995 |
| Genre | : Aeronautics |
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| Total Pages | : 4 |
| Release | : 1995 |
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Two measurements of the lifetime of neutral and charged B mesons in p{bar p} collisions at √s = 1.8 TeV by the CDF experiment are presented. The first relies on the study of exclusive decays of the type B → [psi] K, the second on semileptonic decays of a B meson into a D° or a D. The combined results are [tau](B+) = 1.62 ± 0.09 ps, [tau](B0) = 1.60 ± 0.09 ps and [tau](B+)/[tau](B°) = 1.00 ± 0.07.
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| Release | : 2007 |
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The authors measure the mean lifetime, [tau] = 2/([Lambda]{sub L} + [Lambda]{sub H}), and the decay-width difference, [Delta][Lambda] = [Lambda]{sub L} - [Lambda]{sub H}, of the light and heavy mass eigenstates of the B{sub s}° meson, B{sub sL}° and B{sub sH}°, in B{sub s}° → J/[psi][phi] decays using 1.7 fb−1 of data collected with the CDF II detector at the Fermilab Tevatron p{bar p} collider. Assuming CP conservation, a good approximation for the B{sub s}° system in the standard model, they obtain [Delta][Lambda] = 0.076{sub -0.063}{sup +0.059}(stat.) ± 0.006(syst.) ps−1 and [tau] = 1.52 ± 0.04(stat.) ± 0.02(syst.) ps, the most precise measurements to date. The constraints on the weak phase and [Delta][Lambda] are consistent with CP conservation.
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| Total Pages | : 624 |
| Release | : 1994 |
| Genre | : Particles (Nuclear physics) |
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