Measurement Of Cp Violating Asymmetries In Neutral B Meson Decays Into Three Kaons
DOWNLOAD
Download Measurement Of Cp Violating Asymmetries In Neutral B Meson Decays Into Three Kaons PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Measurement Of Cp Violating Asymmetries In Neutral B Meson Decays Into Three Kaons book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Measurements Of Cp Violating Asymmetries In Neutral B Meson Decays Into Three Kaons
DOWNLOAD
Author : Joshua M. Thompson
language : en
Publisher:
Release Date : 2008
Measurements Of Cp Violating Asymmetries In Neutral B Meson Decays Into Three Kaons written by Joshua M. Thompson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
Measurement Of Cp Violating Asymmetries In Neutral B Meson Decays Into Three Kaons
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2008
Measurement Of Cp Violating Asymmetries In Neutral B Meson Decays Into Three Kaons written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
The Standard Model (SM) of particle physics successfully describes all of the observed interactions of the fundamental particles (with the exception of non-zero neutrino mass). Despite this enormous success, the SM is widely viewed as an incomplete theory. For example, the size of the asymmetry between matter and antimatter is not nearly large enough to account for the abundance of matter observed throughout the universe. It is thus believed that as-yet-unknown physical phenomena must exist that introduce new asymmetries between matter and antimatter. In this thesis, by studying decays that happen only rarely in the SM, we make measurements of asymmetries between matter and antimatter that are potentially sensitive to the existence of processes beyond the SM. At the PEP-II asymmetric-energy B Factory at SLAC, electrons and positrons are collided at the [Upsilon](4S) resonance to create pairs of B mesons. The BABAR detector is used to measure the subsequent decay products. Using 383 million [Upsilon](4S) 2!B$\bar{B}$ decays, we study the decay B0 2!K+K-K0. In the SM, this decay is dominated by loop amplitudes. Asymmetries between matter and antimatter (CP asymmetries) are extracted by measuring the time-dependence of the complex amplitudes describing the B0 and $\bar{B}$0 decays as functions of their kinematics. The interference between decays with and without the mixing of neutral B mesons allows for the measurement of the angle [beta]eff, which is a measure of CP violation. We also measure the direct CP asymmetry ACP. Data samples reconstructed from three K0 modes (KS0 2![pi]+[pi]-, KS0 2![pi]0[pi]0, and KL0) are fit simultaneously. They find ACP = -0.015 ± 0.077 ± 0.053 and [beta]eff = 0.352 ± 0.076 ± 0.026 rad, corresponding to a CP violation significance of 4.8[sigma]. A second solution near [pi]/2-[beta]eff is disfavored with a significance of 4.5[sigma]. In a subsequent fit to the region with mK+K-> 1.1 GeV/c2, they find ACP = -0.054 ± 0.102 ± 0.060 and [beta]eff = 0.436 ± 0.087-0.031+0.055 rad, excluding the possibility that [beta]eff = 0 at 5.1[sigma]. They use the data with msub K+K-
Dalitz Plot Analysis Of Neutral B Meson Decays To Charged Kaon Charged Pion And Neutral Pion Final States
DOWNLOAD
Author : Zhitang Yu
language : en
Publisher:
Release Date : 2005
Dalitz Plot Analysis Of Neutral B Meson Decays To Charged Kaon Charged Pion And Neutral Pion Final States written by Zhitang Yu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
94 Electroweak Interactions And Unified Theories
DOWNLOAD
Author : J. Thanh Van Tran
language : en
Publisher: Atlantica Séguier Frontières
Release Date : 1994
94 Electroweak Interactions And Unified Theories written by J. Thanh Van Tran and has been published by Atlantica Séguier Frontières this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Electromagnetic interactions categories.
High Energy Physics Ichep 2000 Proceedings Of The 30th International Conference In 2 Volumes
DOWNLOAD
Author : Chong-sa Lim
language : en
Publisher: World Scientific
Release Date : 2001-04-30
High Energy Physics Ichep 2000 Proceedings Of The 30th International Conference In 2 Volumes written by Chong-sa Lim and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-04-30 with Science categories.
This book presents topics of major interest to the high energy physics community, as well as recent research results.
Particle Physics On The Eve Of Lhc Proceedings Of The 13th Lomonosov Conference On Elementary Particle Physics
DOWNLOAD
Author : Alexander I. Studenikin
language : en
Publisher: World Scientific
Release Date : 2009-01-05
Particle Physics On The Eve Of Lhc Proceedings Of The 13th Lomonosov Conference On Elementary Particle Physics written by Alexander I. Studenikin and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-01-05 with Science categories.
This proceedings volume is devoted to a wide variety of items, both in theory and experiment, of particle physics such as tests of the Standard Model and beyond, physics at the future accelerators, neutrino and astroparticle physics, heavy quark physics, non-perturbative QCD, quantum gravity effects and cosmology. It is important that the papers in this volume reveal the present status and new developments in the above-mentioned items on the eve of a new era that starts with the Large Hadron Collider (LHC).
The Measurement Of Cp Asymmetries And Branching Fractions In Neutral B Meson Decays To Charged Rhos And Pions Kaons With The Babar Detector
DOWNLOAD
Author : Ran Liu
language : en
Publisher:
Release Date : 2004
The Measurement Of Cp Asymmetries And Branching Fractions In Neutral B Meson Decays To Charged Rhos And Pions Kaons With The Babar Detector written by Ran Liu 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.
New Era For Cp Asymmetries Axions And Rare Decays Of Hadrons And Leptons
DOWNLOAD
Author : Ikaros I Bigi
language : en
Publisher: World Scientific
Release Date : 2021-07-14
New Era For Cp Asymmetries Axions And Rare Decays Of Hadrons And Leptons written by Ikaros I Bigi and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-07-14 with Science categories.
This book is dedicated to Lev Okun, who passed away in November 2015. He was a true pioneer in probing fundamental dynamics.The book has two objectives. First is to showcase Okun's impact for decades since 1963, when he published his remarkable book Weak Interaction of Elementary Particles. Second is to present the current progress of our scientific community in the studies of our Universe. New directions and possible future developments are discussed, often using the past as a guide. The authors mostly focus on CP asymmetries in the transitions of hadrons and leptons, but they also discuss their rare decays, and talk about axions and supersymmetry, and possible connections with dark matter, extra dimensions, baryogenesis and multiverse.This book is suitable for readers who know quantum mechanics and quantum field theories in general.
Time Dependent Cp Violation Measurements
DOWNLOAD
Author : Markus Röhrken
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-10-17
Time Dependent Cp Violation Measurements written by Markus Röhrken and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-17 with Science categories.
This thesis describes a high-quality, high-precision method for the data analysis of an interesting elementary particle reaction. The data was collected at the Japanese B-meson factory KEKB with the Belle detector, one of the most successful large-scale experiments worldwide. CP violation is a subtle quantum effect that makes the world look different when simultaneously left and right and matter and antimatter are exchanged. This being a prerequisite for our own world to have developed from the big bang, there are only a few experimental indications of such effects, and their detection requires very intricate techniques. The discovery of CP violation in B meson decays garnered Kobayashi and Maskawa, who had predicted these findings as early as 1973, the 2008 Nobel prize in physics. This thesis describes in great detail what are by far the best measurements of branching ratios and CP violation parameters in two special reactions with two charm mesons in the final state. It presents an in-depth but accessible overview of the theory, phenomenology, experimental setup, data collection, Monte Carlo simulations, (blind) statistical data analysis, and systematic uncertainty studies.
The Measurement Of Cp Asymmetries In The Three Body Charmless Decay Neutral B Meson Decays To Neutral Kaon S Neutral Kaon S Neutral Kaon S
DOWNLOAD
Author : Haleh K. Hadavand
language : en
Publisher:
Release Date : 2006
The Measurement Of Cp Asymmetries In The Three Body Charmless Decay Neutral B Meson Decays To Neutral Kaon S Neutral Kaon S Neutral Kaon S written by Haleh K. Hadavand and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
In this dissertation, a measurement of CP-violating effects in decays of neutral B mesons is presented. The data sample for this measurement consists of about 272 million {Upsilon}(4S) {yields} B{bar B} decays collected between 1999 and 2004 with the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} collider, located at the Stanford Linear Accelerator Center. One neutral B meson is fully reconstructed in the CP eigenstate B{sup 0} {yields} K{sub S}{sup 0} K{sub S}{sup 0} K{sub S}{sup 0}. The other B meson is determined to be either a B{sup 0} or a {bar B}{sup 0}, at the time of its decay, from the properties of its decay products. The proper time {Delta}t elapsed between the decay of the two mesons is determined by reconstructing their decay vertices, and by measuring the distance between them. A novel technique for determining the B vertex of the decay to the CP eigenstate B{sup 0} {yields} K{sub S}{sup 0} K{sub S}{sup 0} K{sub S}{sup 0} has been applied since the tracks in the final state do not originate from the B decay vertex. The time-dependent CP asymmetry amplitudes are determined by the distributions of {Delta}t in events with a reconstructed B meson in the CP eigenstate. The detector resolution and the b flavor tagging parameters are constrained by the {Delta}t distributions of events with a fully reconstructed flavor eigenstate. Because of the special topology of this decay, the detector resolution on {Delta}t must be checked for consistency with decays with tracks which originate from the B decay. From a maximum likelihood fit to the {Delta}t distributions of all selected events, the value of the CP violating asymmetries are measured to be S{sub 3K{sub S}{sup 0}} = -0.71{sub -0.32}{sup +0.38} {+-} 0.04 and C{sub 3K{sub S}{sup 0}} = -0.34{sub -0.25}{sup +0.28} {+-} 0.05. Fixing C = 0 we measure the time-dependent CP asymmetry amplitude sin 2{beta} = -S{sub 3K{sub S}{sup 0}} = 0.79{sub -0.36}{sup +0.39} {+-} 0.04. The value of sin 2{beta} is in agreement with Standard Model predictions.