Search for the Radiative Decays B-] Rho Gamma and B-]omega Gamma PDF Download
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![Search for the Radiative Decays B-] Rho Gamma and B-]omega Gamma PDF](https://books.google.com/books/content/images/frontcover/Pj7ZwQEACAAJ?fife=w150-h200)
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Languages : en
Pages : 7
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A search for the exclusive radiative decays B →?(770)? and B° →?(782)? is performed on a sample of about 84 million B{bar B} events collected by the BABAR detector at the PEP-II asymmetric-energy ee− storage ring. No significant signal is seen in any of the channels. We set upper limits on the branching fractions? of?(B° →?°?)
![Search for the Radiative Decays B-] Rho Gamma and B-]omega Gamma PDF](https://books.google.com/books/content/images/frontcover/Pj7ZwQEACAAJ?fife=w80-h100)
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Category :
Languages : en
Pages : 7
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Book Description
A search for the exclusive radiative decays B →?(770)? and B° →?(782)? is performed on a sample of about 84 million B{bar B} events collected by the BABAR detector at the PEP-II asymmetric-energy ee− storage ring. No significant signal is seen in any of the channels. We set upper limits on the branching fractions? of?(B° →?°?)
![SEARCH FOR THE EXCLUSIVE RADIATIVE DECAYS B ---] RHO GAMMA AND B0 ---] OMEGA GAMMA. PDF](https://books.google.com/books/content/images/frontcover/8B8BwgEACAAJ?fife=w80-h100)
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Category :
Languages : en
Pages : 17
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Book Description
A search for the exclusive radiative decays B →?(770)? and B° →?(782)? is performed on a sample of 84 million B{bar B} events collected by the BaBar detector at the PEP-II asymmetric ee− collider. No significant signal is seen in any of the channels. They set preliminary upper limits of?[B° →?°?]
![Search for Radiative Penguin Decays B[sup +] --] [rho][sup +] [gamma], B[sup 0] --] [rho][sup 0] [gamma], and B[sup 0] --] [omega] [gamma]. PDF](https://books.google.com/books/content/images/frontcover/UI7BjwEACAAJ?fife=w80-h100)
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Category :
Languages : en
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A search for the decays B --> [rho](770)[gamma] and B[sup 0] --> [omega](782)[gamma] is performed on a sample of 211 million [Upsilon](4S) --> B[bar B] events collected by the BABAR detector at the PEP-II asymmetric-energy e[sup +]e[sup -] storage ring. No evidence for the decays is seen. The authors set the following limits on the individual branching fractions B(B[sup +] --> [rho][sup +][gamma]) 1.8 x 10[sup -6], B(B[sup 0] -- [rho][sup 0][gamma]) 0.4 x 10[sup -6], and B(B[sup 0] -- [omega][gamma]) 1.0 x 10[sup -6] at the 90% confidence level (C.L.). They use the quark model to limit the combined branching fraction [bar B]B -- ([rho]/[omega])[gamma]
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Category :
Languages : en
Pages : 146
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The authors present the results of the search for the decays B°±} → [rho]°±}[gamma] (previously observed) and B° → [omega][gamma] (for which currently only an upper limit exists). Together with B → K*[gamma] decays, B → ([rho]/[omega])[gamma] allow us to measure the ratio of CKM-matrix elements.
Author: Timofei Piatenko
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ISBN:
Category : Electronic dissertations
Languages : en
Pages : 264
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![Measurements of B -] V Gamma Decays PDF](https://books.google.com/books/content/images/frontcover/tA-6AQAACAAJ?fife=w80-h100)
Author: Aaron Kevin Yarritu
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Languages : en
Pages :
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Observational evidence and theoretical motivation have led us to the conclusion that our current understanding of the universe is incomplete. While new physics is expected to exist above the electroweak scale, its influence can be detected by experiments that operate below this scale. The Babar experiment has recorded approximately 432 fb-1 of data at the center of mass energy of 10.58 GeV, which corresponds to the Y(4S) mass. One of the physics programs is studying radiative decays of the B meson. These decays primarily proceed through loop diagrams, and thus influences of new particles may be detectable. In this thesis, I present results of the measurements of the branching fractions, CP asymmetry, and isospin asymmetry of B -> K* gamma. Results are also presented for the measurements of the branching fractions of B -> rho(omega) gamma. Finally, a search for the decay of B -> phi gamma is given.
![Measurements of B -] V Gamma Decays PDF](https://books.google.com/books/content/images/frontcover/3dRBnQAACAAJ?fife=w80-h100)
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Category :
Languages : en
Pages : 217
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The standard model has been highly successful at describing current experimental data. However, extensions of the standard model predict particles that have masses at energy scales that are above the electroweak scale. The flavor-changing neutral current processes of the B meson are sensitive to the influences of these new physics contributions. These processes proceed through loop diagrams, thus allowing new physics to enter at the same order as the standard model. New physics may contribute to the enhancement or suppression of rate asymmetries or the decay rates of these processes. The transition B → V[gamma] (V = K*(892), [rho](770), [omega](782), [phi](1020)) represents radiative decays of the B meson that proceed through penguin processes. Hadronic uncertainties limit the theoretical accuracy of the prediction of the branching fractions. However, uncertainties, both theoretical and experimental, are much reduced when considering quantities involving ratios of branching fractions, such as CP or isospin asymmetries. The most dominant exclusive radiative b → s transition is B → K*[gamma]. We present the best measurements of the branching fractions, direct CP, and isospin asymmetries of B → K*[gamma]. The analogous b → d transitions are B → [rho][gamma] and B → [omega][gamma], which are suppressed by a factor of.
![Search for Radiative Penguin Decays B+ ---] Rho+ Gamma, B0 ---] Rho0 Gamma, And B0 ---] Omega Gamma PDF](https://books.google.com/books/content/images/frontcover/v8_TwQEACAAJ?fife=w80-h100)
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Category :
Languages : en
Pages : 3
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Book Description
A search for the decays B →?(770)? and B° →?(782) is performed on a sample of 211 million?(4S) → B{bar B} events collected by the BABAR detector at the PEP-II asymmetric-energy ee− storage ring. No evidence for the decays is seen. We set the following limits on the individual branching fractions?(B+ →?+?)
![The Radiative Decay B'-->b[gamma] PDF](https://books.google.com/books/content/images/frontcover/vHm8oQEACAAJ?fife=w80-h100)
Author: Markus Moser
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ISBN:
Category :
Languages : en
Pages : 51
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Author:
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ISBN:
Category :
Languages : en
Pages : 207
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This document describes the measurements of the branching fractions and isospin violations of the radiative electroweak penguin decays B 2!([rho]/[omega])[gamma] at the asymmetric-energy ee− PEP-II collider with the BABAR detector. Together with the previously measured branching fractions of the decays B 2!K*[gamma] the ratio of CKM-matrix elements.
