Measurements Of Cp Violating Asymmetries And Branching Fractions In B Meson Decays To Eta K

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Measurements Of Cp Violating Asymmetries And Branching Fractions In B Meson Decays To Eta K

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Author :
language : en
Publisher:
Release Date : 2003

Measurements Of Cp Violating Asymmetries And Branching Fractions In B Meson Decays To Eta K written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

From Quarks To Black Holes Progress In Understanding The Logic Of Nature Proceedings Of The International School Of Subnuclear Physics

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Author : Antonino Zichichi
language : en
Publisher: World Scientific
Release Date : 2005-06-16

From Quarks To Black Holes Progress In Understanding The Logic Of Nature Proceedings Of The International School Of Subnuclear Physics written by Antonino Zichichi and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-06-16 with Science categories.

This volume is a unique report on the frontiers of subnuclear physics presented by global specialists in a clear and rigorous style.The question of Lattice QCD is presented by R D Kenway, and that of Quark-Gluon Plasma Physics by F Karsch. Quantum Field theory is discussed by R G Dijkgraff, and the status of Local Supersymmetry by M J Duff. Detailed analysis of Supersymmetry in Nuclei is made by F Iachello, and that of Inflation, Dark Matter and Dark Energy by E W Kolb. Compactified dimensions are outlined by I Antoniadis, Horizons in the quantization of the gravitational force by Nobel Laureate G 't Hooft, as also are Neutrino Oscillations by G Fogli and Fundamental Constants by H Fritzsch. The experimental data from BNL and Babar are presented by T W Ludlum and M A Giorgi, those from Fermilab and Hera by Parke and G Wolf. The status at CERN is given by L Maiani for the LHC and by W-D Schlatter for the non-LHC experiments. Highlights from Gran Sasso are presented by A Bettini. This volume also contains reports by a selected group of “new talents” on various topics in the field of subnuclear physics.The proceedings have been selected for coverage in:• Index to Scientific & Technical Proceedings® (ISTP® / ISI Proceedings)• Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings)• CC Proceedings — Engineering & Physical Sciences

Branching Fraction And P Violation Charge Asymmetry Measurements For B Meson Decays To Eta K Eta Pi Eta K Eta Pi Omega K And Omega Pi

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Author :
language : en
Publisher:
Release Date : 2007

Branching Fraction And P Violation Charge Asymmetry Measurements For B Meson Decays To Eta K Eta Pi Eta K Eta Pi Omega K And Omega Pi written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

Cp Violating Asymmetries In Eta Prime K And Direct Cp Violation Searches With Babar In Charmless Hadronic B Meson Decays

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Author :
language : en
Publisher:
Release Date : 2004

Cp Violating Asymmetries In Eta Prime K And Direct Cp Violation Searches With Babar In Charmless Hadronic B Meson Decays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

We present preliminary results of the measurement of branching fractions and CP violating asymmetries in B meson decays to [eta][prime]K and [phi]K*. We update also the results of the direct CP violation searches with BABAR in charmless hadronic B meson decays.

Measurements Of Branching Fraction And Cp Violation Inb Meson Rare Decays To Final States Containing Eta Or Eta Mesons In The Babar Experiment At Slac

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Author :
language : en
Publisher:
Release Date : 2007

Measurements Of Branching Fraction And Cp Violation Inb Meson Rare Decays To Final States Containing Eta Or Eta Mesons In The Babar Experiment At Slac written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

Note that the main goal of this thesis work is the measurement of the branching fractions, charge asymmetry, and Time-Dependent CP Violation in [eta]'K° mode. All other measurements are reported here for completion because they are connected by similar physics arguments. They are part of the Milan analysis activity, done by undergraduate students. They should not be considered as done in this thesis work. The measurements of the two body-modes [eta][eta], [eta][phi], and [eta]'[phi] are used to determine a theoretical bound based on SU(3) flavor symmetry for the difference between SM prediction and the experimental measurements of CP violation parameters in b → s loop-dominated modes. In general for this estimation we need to measure the branching fractions (or upper limits) of neutral B decays to two-body modes with [eta]', [eta], [phi], [omega], [pi]°, K°, K*° [13, 14, 15, 16]. There is an important issue related to the branching fractions of [eta]'K (charged and neutral) modes. Since the discover of B → [eta]'K in 1997 [17] with high branching fraction (higher than expected), it was found that the corresponding mode with [eta] is suppressed. This fact was pointed out by Lipkin in 1991 [18]. In particular, using arguments concerning the [eta]-[eta]' mixing angle and the parity of K or K* we can say that [eta]'K and [eta]K* are enhanced, while [eta]K and [eta]'K* are suppressed. This scheme is experimentally verified. The branching fraction of all these modes are already measured, but the B° → [eta]K°. So it is important to measure also this mode to complete the scenario. Finally we report on the measurements of the radiative modes B → [eta]'K[gamma] and of the three-body mode B → [eta]'[eta]'K. Both cases are good candidates to manifest effects due to NP in CP violations [19, 20]. For all measurements we use an unbinned maximum likelihood fit to extract the number of signal yields and CP parameters. To perform these fits we have developed a flexible program in C++ language, called MiFit, which has taken a consistent part of the work described in this thesis. This program is used in all Milan analyses. All these measurements have been presented in conferences and published in Physical Review Letters or Physics Review D (Rapid Communication). These measurements are official BABAR results, approved by the Collaboration. The thesis is structured in eight chapters. In the first chapter we describe the CP violation and how it is explained in the SM. We give the theoretical description of the modes studied in this thesis. We report also the latest main results for the CP violation. In the second chapter we describe the BABAR detector with a description of each sub-detector. In the third chapter we describe the software used by the collaboration, in particular the code used in the events reconstruction, which is described in the fourth chapter. In the fifth chapter we describe the software used to selected the events and the MiFit program. After that, in the sixth chapter we show the discriminating variables used for the events selection and how the selection is done. In the last two chapters we report the analyses and results of the branching fractions and charge asymmetries measurements and the time-dependent CP asymmetries analysis of the mode B° → [eta]'K°, respectively.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1994

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Aeronautics categories.

Nuclear Science Abstracts

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Author :
language : en
Publisher:
Release Date : 1967

Nuclear Science Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Nuclear energy categories.

NSA is a comprehensive collection of international nuclear science and technology literature for the period 1948 through 1976, pre-dating the prestigious INIS database, which began in 1970. NSA existed as a printed product (Volumes 1-33) initially, created by DOE's predecessor, the U.S. Atomic Energy Commission (AEC). NSA includes citations to scientific and technical reports from the AEC, the U.S. Energy Research and Development Administration and its contractors, plus other agencies and international organizations, universities, and industrial and research organizations. References to books, conference proceedings, papers, patents, dissertations, engineering drawings, and journal articles from worldwide sources are also included. Abstracts and full text are provided if available.

Physics Briefs

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Author :
language : en
Publisher:
Release Date : 1991

Physics Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Physics categories.

Measurements Of Branching Fractions And Cp Violating Asymmetries In B Meson Decays To The Charmless Two Body States K Sup 0 Pi K Bar Sup 0 K Sup And K Sup 0 K Bar Sup 0

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Author :
language : en
Publisher:
Release Date : 2004

Measurements Of Branching Fractions And Cp Violating Asymmetries In B Meson Decays To The Charmless Two Body States K Sup 0 Pi K Bar Sup 0 K Sup And K Sup 0 K Bar Sup 0 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

The authors present preliminary measurements of the branching fraction and the CP-violating charge asymmetry in the B[sup +] --> K[sup 0][pi][sup +] decay, and a preliminary measurement of the branching fraction of the B[sup 0] --> K[sup 0][bar K][sup 0] decay. No evidence of direct CP violation in the B[sup +] --> K[sup 0][pi][sup +] mode is observed. The B[sup 0] --> K[sup 0][bar K][sup 0] measurement constitutes the first observation of this decay channel: the probability of obtaining the result assuming the null-signal hypothesis is 3.4 x 10[sup -6]. The authors have also searched for the B[sup +] --> [bar K][sup 0]K[sup +] decay and set an upper limit on its branching fraction at 2.35 x 10[sup -6] at the 90% C.L. The branching-fraction measurements reported here are consistent with previous measurements of the same quantities, but are extracted from a data sample larger by a factor of 2.6.

Energy Research Abstracts

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Author :
language : en
Publisher:
Release Date : 1980

Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Power resources categories.