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Languages : en
Pages : 4
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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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Languages : en
Pages : 4
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Book Description
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.
![Measurement of the B[sup+] and B[sup 0] Lifetimes at CDF. PDF](https://books.google.com/books/content/images/frontcover/7wjYjwEACAAJ?fife=w80-h100)
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Languages : en
Pages :
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Two measurements of the lifetime of neutral and charged B mesons in p[bar p] collisions at[radical]s= 1.8 TeV by the CDF experiment are presented. The first relies on the study of exclusive decays of the type B[yields][psi] K, the second on semileptonic decays of a B meson into a D[degrees] or a D. The combined results are[tau](B[sup+])= 1.62[+-] 0.09 ps, [tau](B[sub 0])= 1.60[+-] 0.09 ps and[tau](B[sup+])/[tau](B[sup 0])= 1.00[+-] 0.07.
Author: Stefan Bernard Gromoll
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Languages : en
Pages : 120
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Category :
Languages : en
Pages : 75
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Lifetime measurements for B0 and B+ are presented using semileptonic decays of B mesons from 360 pb-1 of data collected by CDF's lepton plus displaced track trigger. The decays B 2!l[nu]DX, where D is either D +, D0, or D* +, are partially reconstructed from a muon or electron, a displaced track, and a fully reconstructed charm meson. The B 0 and B+ lifetimes are obtained from an unbinned maximum-likelihood fit to the proper decay length distributions. The measured lifetimes are [tau]B 0 = 1.527 ± 0.012(stat.) ± 0.023(syst.)ps and [tau]B + = 1.629 ± 0.013(stat.) ± 0.025(syst.)ps.
![Measurement of the B and B° Meson Lifetimes Using Exclusive B 2![psi]K Decays at CDF. PDF](https://books.google.com/books/content/images/frontcover/D_yvAQAACAAJ?fife=w80-h100)
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Languages : en
Pages : 5
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The authors present recent CDF measurements of [tau], [tau]°, and [tau]/[tau]° using exclusive B 2![psi]K decays, where B = B+ or B°, [psi] = J/[psi] or [psi](2S), and K = K+, K*(892)°, K{sub S}°, or K*(892)+. The precision of these results is less than 10% and is nearly identical to that previously reported at LEP.
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Languages : en
Pages :
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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.
Author: Catherine Vander Velde
Publisher: World Scientific
ISBN: 9814547700
Category :
Languages : en
Pages : 1042
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Category :
Languages : en
Pages : 11
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The lifetimes of the B− and {bar B}° mesons are measured using the partially reconstructed semileptonic decays in the CDF experiment.
Author: Zygmunt Ajduk
Publisher: World Scientific
ISBN: 9814547107
Category :
Languages : en
Pages : 1878
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Book Description
The 28th conference from the Rochester series was the major high energy physics conference in 1996. Volume one contains short reports on new theoretical and experimental results. Volume two consists of the review talks presented in the plenary sessions.
Author: Teresa Rodrigo
Publisher: World Scientific
ISBN: 9814548847
Category :
Languages : en
Pages : 340
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Book Description
This meeting discussed the experimental results and theoretical aspects in the field of high energy physics, with special reference to the top quark observation, heavy flavor physics and symmetry-breaking mechanisms. The major topics are developed in a series of course lectures.
