Author: David Mattill StromPublisher:
ISBN:
Category :
Languages : en
Pages : 402
Book Description
Measurement of the D0 Lifetime
Author: David Mattill StromA Measurement of the D0 Lifetime
Author: TASSO CollaborationMeasurement of the B-d0 Lifetime Using B-d0 to J/psi K0-S Decays at Dzero
Author: Precise Measurement of D0, D− and D−s Meson Lifetimes
Author: Danilo Ljubisav PušeljićPublisher:
ISBN:
Category :
Languages : en
Pages : 120
Book Description
Measurement of the D*(sup)0 Meson Lifetime
Author: A Precise Measurement of the B0(s) Lifetime
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 7
Book Description
The authors report a measurement of the B{sub s}° lifetime in the semileptonic decay channel B{sub s}° → D{sub s}−??X (and its charge conjugate), using approximately 0.4 fb−1 of data collected with the D0 detector during 2002-2004. They have reconstructed 5176 D{sub s}−?+ signal events, where the D{sub s}− is identified via the decay D{sub s}° →??−, followed by? → K+K−. Using these events, they have measured the B{sub s}° lifetime to be?(B{sub s}°) = 1.398 ± 0.044 (stat){sub -0.025}{sup +0.028}(syst) ps. This is the most precise measurement of the B{sub s}° lifetime to date.
A Measurement of the Do Lifetime
Author: TASSO CollaborationMeasurement of D0 Lifetime with the BaBar Detector
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 183
Book Description
This work is the result of the researchers carried out during a three years Ph. D. period in the BABAR experiment. The first chapter consists in an introduction to the theoretical aspects of the D° meson lifetime determination and CP violation parameters, as well as an overview of the CP violation in the B sector, which is the main topic of the experiment. The description of the experimental apparatus follows with particular attention to the Silicon Vertex Tracker detector, the most critical detector for the determination of decay vertices and thus of lifetimes and time dependent CP violation asymmetries. In the fourth chapter the operation and running of the vertex detector is described, as a result from the experience as Operation Manager of the SVT, with particular attention to the safety of the device and the data quality assurance. The last chapter is dedicated to the determination of the D° meson lifetime with the BABAR detector, which is the main data analysis carried out by the candidate. The analysis is characterized by the selection of an extremely pure sample of D° mesons for which the decay flight length and proper time is reconstructed. The description of the unbinned maximum likelihood fit follows, as well as the discussion of the possible sources of systematic uncertainties. In the appendix is also presented a preliminary study of a possible development regarding the determination of mixing and CP violation parameters for the D° meson.
A Measurement of the 0b Lifetime at the D0 Experiment
Author: Marcus Philip LewinExcited State Lifetime Measurements
Author: J DemasPublisher: Elsevier
ISBN: 0323157548
Category : Science
Languages : en
Pages : 289
Book Description
Excited State Lifetime Measurements attempts to assist in clarifying and unifying the many characteristics and definitions of excited state lifetime measurements. The contents of this book are derived from a series of lectures presented to a research group in the University of New Mexico in 1967. The relevance as well as the methods and measurements of data treatment of excited state lifetimes are featured in this book. The first three chapters provide a brief discussion on concepts and applications of excited state lifetime measurements. Experimental methods and systems are also introduced in these chapters. Chapter 4 delves into more complex systems (serial decay kinetics and resonance energy transfer) while Chapter 5 focuses on the method of least squares fitting, its uses, and misuses. Chapters 6 to 8 mainly discuss the convolution integral and its different applications while Chapter 9 gives a more detailed presentation of instrumentation. The last two chapters discuss special errors and approaches to new methodologies regarding the study of the excited state lifetime measurements. The book will be useful to students and scientists including analytical chemists, photochemists, photobiologists, spectroscopists, and physicists.