A Measurement of the Average Lifetime of B Hadrons Using Vertex Reconstruction PDF Download
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Author: David Robert Muller
Publisher:
ISBN:
Category : Hadrons
Languages : en
Pages : 486
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Author: David Robert Muller
Publisher:
ISBN:
Category : Hadrons
Languages : en
Pages : 486
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Book Description
![A Measurement of the Average Lifetime of [beta] Hadrons Using Vertex Reconstruction PDF](https://books.google.com/books/content/images/frontcover/n3gfAQAAMAAJ?fife=w80-h100)
Author: David Robert Muller
Publisher:
ISBN:
Category : Hadrons
Languages : en
Pages : 234
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Author: Sumit Sen
Publisher:
ISBN:
Category :
Languages : en
Pages : 280
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![Measurement of the Average Lifetime of B-hadrons Produced in P[bar P] Collisions At[radical] PDF](https://books.google.com/books/content/images/frontcover/lZbAjwEACAAJ?fife=w80-h100)
Author:
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ISBN:
Category :
Languages : en
Pages :
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The average b-hadron lifetime has been measured using a high statistics sample of[ital B][r-arrow][ital J]/[psi][Chi] decays recorded with the Collider Detector at Fermilab. We use a sample with an integrated luminosity of[approx] 90[ital pb][sup -1] recorded during the 1994-95 running period. The decay vertices of[approx] 62656 inclusive[ital J]/[psi][r-arrow][mu][sup+][mu][sup -] candidates have been reconstructed using information from a silicon vertex-detector. The measured[ital B]lifetime, which is the average over all b-hadrons produced in[ital p][ital[anti p]] collisions at[radical]s= 1.8 TeV weighted by their branching ratios into[ital J]/[psi], is 1.524[+-] 0.015 ([ital stat])[sup+0.035][sub -0.026] ([ital sys]) ps. The precision of this measurement is significantly improved compared to the inclusive lifetime measurement published previously using[approx] 10[ital pb][sup -1].
Author: Sheldon Stone
Publisher: World Scientific
ISBN: 9789810218362
Category : Science
Languages : en
Pages : 676
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Book Description
This 2nd edition is an extensive update of "B Decays?. The revisions are necessary because of the extensive amount of new data and new theoretical ideas. This book reviews what is known about b-quark decays and also looks at what can be learned in the future.The importance of this research area is increasing, as evidenced by the approval of the luminosity upgrade for CESR and the asymmetric B factories at SLAC and KEK, and the possibility of experiments at hadron colliders.The key experimental observations made thus far, measurement of the lifetimes of the different B species, B0-B0 mixing, the discovery of ?Penguin? mediated decays, and the extraction of the CKM matrix elements Vub and Vcb from semileptonic decays, as well as more mundane results, are described in great detail by the experimentalists who have been closely involved with making the measurements. Theoretical progress in understanding b-quark decays using HQET and lattice gauge techniques are described by theorists who have developed and used these techniques.Synthesizing the experimental and theoretical information, several articles discuss the implications for the ?Standard Model? and how further tests can be done using measurements of CP violation in the B system.
Author: Allen Christopher Caldwell
Publisher:
ISBN:
Category :
Languages : en
Pages : 414
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Author:
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ISBN:
Category :
Languages : en
Pages : 10
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The average B hadron lifetime was measured using data collected with the SLD detector at the SLC in 1993. From a sample of -50,000 Z° events, a sample enriched in Z° → b{bar b} was selected by applying an impact parameter tag. The lifetime was extracted from the decay length distribution of inclusive vertices reconstructed in three dimensions. A binned maximum likelihood method yielded an average B hadron lifetime of?{sub B} = 1.577±0.032(stat.)±0.046(syst.) ps.
Author:
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ISBN:
Category :
Languages : en
Pages :
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Author: Catherine Vander Velde
Publisher: World Scientific
ISBN: 9814547700
Category :
Languages : en
Pages : 1042
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Author: Harry N. Nelson
Publisher:
ISBN:
Category :
Languages : en
Pages : 202
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