Dalitz Plot Analysis of the Decay D+ --> K− [pi]+ [pi]+ PDF Download
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![Dalitz Plot Analysis of the Decay D+ --> K− [pi]+ [pi]+ PDF](https://books.google.com/books/content/images/frontcover/cAK6YgEACAAJ?fife=w150-h200)
Author: Daniel Podolsky
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Languages : en
Pages : 35
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![Dalitz Plot Analysis of the Decay D+ --> K− [pi]+ [pi]+ PDF](https://books.google.com/books/content/images/frontcover/cAK6YgEACAAJ?fife=w80-h100)
Author: Daniel Podolsky
Publisher:
ISBN:
Category :
Languages : en
Pages : 35
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![PRELIMINARY STUDY OF D0 ---] K PI PI0 DECAYS WITH DALITZ PLOTS. PDF](https://books.google.com/books/content/images/frontcover/SeGIDAEACAAJ?fife=w80-h100)
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Languages : en
Pages :
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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[sup 0][yields] K[pi][pi][sup 0] decays. Others in the CWG have studied mixing in the 2-body decay, D[sup 0][yields] 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[sup 0][yields] K[pi][pi][sup 0] 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[sup 0][yields] K[pi][pi][sup 0] 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.
![Time-dependent Dalitz-plot Analysis of the Charmless Decay B[superior 0] → K[superior 0][inferior S] [pi]+[pi] ̄at BaBar PDF](https://books.google.com/books/content/images/frontcover/YMMXswEACAAJ?fife=w80-h100)
Author:
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Category :
Languages : en
Pages : 182
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Author: Arnau Brossa Gonzalo
Publisher: Springer Nature
ISBN: 3031227530
Category : Science
Languages : en
Pages : 241
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Book Description
This book presents the latest results on the branching fraction and phase space distribution of B0 and Bs0 decays into final states including excited neutral charm mesons. This work represents four years of research, and the book describes in detail all the necessary steps and techniques required to perform a physics analysis of the data recorded by the LHCb experiment in the years 2016–2018. Although the results presented in this book represent the first measurement of such decays, the text is written in a manner accessible to Ph.D. students and early career researchers. Thus, all the contents included in this book are described in a pedagogical way, including technical details that would allow the results to be reproduced in future. In addition to the methodology used to perform these measurements, the book also includes a description of the theoretical background required to interpret the results presented, as well as a technical description of the LHCb detector, which provided the data sample used in this study.
Author:
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Languages : en
Pages : 17
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The author reports on a Dalitz plot analysis of B− → D+?−?− decays, based on a sample of about 383 million ?(4S) → B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. They find the total branching fraction of the three-body decay: ?(B− → D+ ?−?−) = (1.08 ± 0.01 ± 0.05) x 10−3. the masses and widths of D*2° and D*0°, the 2+ and 0+ c{bar u} P-wave states decaying to D+?−, are measured: m{sub D*2°} = (2460.4 ± 1.2 ± 1.2 ± 1.9) MeV/c2, ?{sub D*2°} = (41.8 ± 2.5 ± 2.1 ± 2.0) MeV, m{sub D*0°} = (2297 ± 8 ± 5 ± 19) MeV/c2 and ?{sub D*0°} = (273 ± 12 ± 17 ± 45) MeV. The stated errors reflect the statistical and systematic uncertainties, and the uncertainty related to the assumed composition of signal events and the theoretical model.
![Dalitz-plot Analysis of B0 -] Anti-D0 Pi Pi- PDF](https://books.google.com/books/content/images/frontcover/HpXKwQEACAAJ?fife=w80-h100)
Author:
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Category :
Languages : en
Pages : 15
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The authors report preliminary results from a study of the decay B° → {bar D}°??− using a data sample of 470.9 ± 2.8 million B{bar B} events collected with the BABAR detector at the?(4S) resonance. Using the Dalitz-plot analysis technique, they find contributions from the intermediate resonances D*2(2460)−, D*0(2400)−,?(770)° and f2(1270) as well as a?+?− S-wave term, a {bar D}°?− nonresonant S-wave term and a virtual D*(2010) amplitude. They measure the branching fractions of the contributing decays.
![Study of the Decay K/sup 0//sub L/. --]. Pi. E. Nu PDF](https://books.google.com/books/content/images/frontcover/yzkFwgEACAAJ?fife=w80-h100)
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Category :
Languages : en
Pages :
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Results are reported from a Dalitz plot analysis of 17750 K/sup 0//sub e3/ candidates obtained in an experiment designed to study both the semileptonic and 3.pi. decay modes of the K/sup 0//sub L/ with high efficiency across the Dalitz plot.
Author: Jelena Ili?
Publisher:
ISBN:
Category :
Languages : en
Pages : 230
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Author:
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ISBN:
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.
![Dalitz Plot Analysis of B+- --] Pi+-pi+-pi-+ Decays PDF](https://books.google.com/books/content/images/frontcover/1wJ9AQAACAAJ?fife=w80-h100)
Author:
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ISBN:
Category :
Languages : en
Pages : 16
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The authors present a Dalitz-plot analysis of charmless B{sup ±} decays to the final state [pi]{sup ±}[pi]{sup ±}[pi]{sup {-+}} using a sample of (465 ± 5) x 106 B{bar B} pairs collected by the BABAR experiment at √s = 10.58 GeV. They measure the branching fractions [Beta](B{sup ±} → [pi]{sup ±}[pi]{sup ±}[pi]{sup {-+}}) = (15.2 ± 0.6 ± 1.2 ± 0.4) x 10−6, [Beta](B{sup {+-}} → [rho]°(770)[pi]{sup {+-}}) = (8.1 {+-} 0.7 {+-} 1.2{sub -1.1}{sup +0.4}) x 10−6, [Beta](B{sup {+-}} → f2(1270)[pi]{sup {+-}}) = (1.57 {+-} 0.42 {+-} 0.16{sub -0.19}{sup +0.53}) x 10−6, and [Beta](B{sup {+-}} → [pi]{sup {+-}}[pi]{sup {+-}}[pi]{sup {-+}} nonresonant) = (5.3 {+-} 0.7 {+-} 0.6{sub -0.5}{sup +1.1}) x 10−6, where the uncertainties are statistical, systematic, and model-dependent, respectively. Measurements of branching fractions for the modes B{sup {+-}} → [rho]°(1450)[pi]{sup {+-}} and B{sup {+-}} → f0(1370)[pi]{sup {+-}} are also presented. They observe no significant direct CP asymmetries for the above modes, and there is no evidence for the decays B{sup {+-}} → f0(980)[pi]{sup {+-}}, B{sup {+-}} → [chi]{sub c0}[pi]{sup {+-}}, or B{sup {+-}} → [chi]{sub c2}[pi]{sup {+-}}.
