Empirical Parameterization of the K - \to Pi - Pi0 Pi0 Decay Dalitz Plot PDF Download
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Languages : en
Pages : 9
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Author:
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Category :
Languages : en
Pages : 9
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![Measurement of Dalitz-plot Slope Parameters for K+ → [pi]+ [pi]0 [pi]0 Decay PDF](https://books.google.com/books/content/images/frontcover/qFsetwAACAAJ?fife=w80-h100)
Author: V. Y. Batusov
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Category :
Languages : en
Pages : 7
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![Preliminary Study of D0 ---] K PI PI0 Decays with Dalitz Plots PDF](https://books.google.com/books/content/images/frontcover/uH1FAQAACAAJ?fife=w80-h100)
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Languages : en
Pages : 24
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Particle physicists study the smallest particles and most basic rules of their interactions in humankind's current scope. The Charm Analysis Working Group (CWG) of the BaBar Collaboration studies decays involving the charm quark. They currently study mixing in D decays, an interesting and poorly understood phenomenon in current physics models. We, as part of the CWG, investigated the plausibility of using Dalitz plots and the BaBar analysis framework to study mixing in Wrong Sign (WS) D° 2!K[pi][pi]° decays. Others in the CWG have studied mixing in the 2-body decay, D° 2!K[pi]. The 3-body decay analyzed with the RooFitDalitz analysis package and Dalitz plots provides more information and another way of separating Doubly Cabibbo Suppressed Decays (DCSD) from mixing--which share the same end products. Through doing many simulations, we have demonstrated the usefulness of this approach. We selected D° 2!K[pi][pi]° events from Simulation Production run No. 4 (SP4) and BaBar's run 1 and run 2. We made Dalitz plots with this data. Now that we better understand Dalitz plots and software, we plan to select WS D° 2!K[pi][pi]° events and perform rate fits as discussed in BaBar Analysis Document (BAD) No. 443, as well as fits for several different decay times and resonances, in order to further distinguish DCSD from mixing.
Author:
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Category :
Languages : en
Pages : 30
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The authors report a Dalitz-plot analysis of the charmless hadronic decays of neutral B mesons to K{sup ±}?{sup {-+}}?°. With a sample of (231.8 ± 2.6) x 106?(4S) → B{bar B} decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, they measure the magnitudes and phases of the intermediate resonant and nonresonant amplitudes for B° and {bar B}° decays and determine the corresponding CP-averaged branching fractions and charge asymmetries. The inclusive branching fraction and CP-violating charge asymmetry are measured to be?(B° → K?−?°) = (35.7{sub -1.5}{sup +2.6} ± 2.2) x 10−6, and?{sub CP} = -0.030{sub -0.051}{sup +0.045} ± 0.055 where the first errors are statistical and the second systematic. They observe the decay B° → K*°(892)?° with the branching fraction?(B° → K*°(892)?°) = (3.6{sub -0.8}{sup +0.7} ± 0.4) x 10−6. This measurement differs from zero by 5.6 standard deviations (including the systematic uncertainties). The selected sample also contains B° → {bar D}°?° decays where {bar D}° → K+?−, and they measure?(B° → {bar D}°?°) = (2.93 ± 0.17 {+-} 0.18) x 10−4.
![A Measurement of the Branching Ratio of the [pi]0 Dalitz Decay Using K[subscript]L [arrow] 3[pi]0 Decays from KTeV PDF](https://books.google.com/books/content/images/frontcover/hdJbNwAACAAJ?fife=w80-h100)
Author: Erin E. Abouzaid
Publisher:
ISBN:
Category : Kaons
Languages : en
Pages : 328
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Book Description
![B0 --] K+ Pi- Pi0 Dalitz Plot Analysis PDF](https://books.google.com/books/content/images/frontcover/cev8wQEACAAJ?fife=w80-h100)
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Category :
Languages : en
Pages : 5
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The authors present preliminary results on the Dalitz plot analysis of B° --> K?−?° decays. The data sample comprises 213 million?(4S) --> B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. They report measurements of the inclusive branching fraction, quasi-two-body fractions and CP-violating charge asymmetries for intermediate states including K*(892)+?− and?(770)−K+. Observations of B° decays to the K?S-wave intermediate states, K0*(1430)+?− and K0*(1430)°?°, are reported. Evidence of the decay B° --> K*(892)°?° is seen. They set upper limits at 90% confidence level on branching fractions of the nonresonant and other less significant intermediate states.
Author: Zhitang Yu
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Category :
Languages : en
Pages : 177
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Book Description
This thesis describes a Dalitz plot analysis of B{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0} decays. The data sample comprises 213 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at the Stanford Linear Accelerator Center in California (SLAC). Preliminary results are presented for measurements of the inclusive branching fraction, quasi-two-body fractions and CP-violating charge asymmetries for intermediate states including K*(892){sup +}{pi}{sup -} and {rho}(770){sup -}K{sup +}. Observations of B{sup 0} decays to the K{pi} S-wave intermediate states, K*{sub 0}(1430){sup +}{pi}{sup -} and K*{sub 0}(1430){sup 0}{pi}{sup 0}, are reported. Evidence of the decay B{sup 0} {yields} K*(892){sup 0}{pi}{sup 0} is seen. We set upper limits at 90% confidence level on branching fractions of the nonresonant and other less significant intermediate states.
![A Measurement of the Branching Ratio of the [pi]0 Dalitz Decay Using K(L) 2!3 [pi]0 Decays from KTeV. PDF](https://books.google.com/books/content/images/frontcover/8JtoAQAACAAJ?fife=w80-h100)
Author:
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Category :
Languages : en
Pages : 183
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The authors present a measurement of B([pi]0 2!e+e-[gamma])/B([pi]0 2![gamma][gamma]) using data taken in 1999 by the E832 KTeV experiment at Fermilab. The [pi]0s were produced by KL decays in flight that are fully reconstructed. They find 63,693 KL 2!3[pi]0 2![gamma][gamma] [gamma][gamma] e+e-[gamma] decays in KTeV data (an increase of a factor of ~ 20 in event statistics over previous experiments), and normalize to KL 2!3[pi]0 2!6[gamma], to extract B([pi]0 2!e+e-[gamma], me+e-> 15 MeV/c2
Author: A. A. Belʹkov
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Category :
Languages : en
Pages :
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Author: Lorenzo Bianchini
Publisher: Springer
ISBN: 331970494X
Category : Science
Languages : en
Pages : 374
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Book Description
This book presents more than 300 exercises, with guided solutions, on topics that span both the experimental and the theoretical aspects of particle physics. The exercises are organized by subject, covering kinematics, interactions of particles with matter, particle detectors, hadrons and resonances, electroweak interactions and flavor physics, statistics and data analysis, and accelerators and beam dynamics. Some 200 of the exercises, including 50 in multiple-choice format, derive from exams set by the Italian National Institute for Nuclear Research (INFN) over the past decade to select its scientific staff of experimental researchers. The remainder comprise problems taken from the undergraduate classes at ETH Zurich or inspired by classic textbooks. Whenever appropriate, in-depth information is provided on the source of the problem, and readers will also benefit from the inclusion of bibliographic details and short dissertations on particular topics. This book is an ideal complement to textbooks on experimental and theoretical particle physics and will enable students to evaluate their knowledge and preparedness for exams.
