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Languages : en
Pages : 4
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The prospects for measuring the angle with present day B factories are examined. A number of approaches are discussed with reference to recent preliminary measurements based on a data sample of approximately 88 million B{bar B} pairs collected by the BaBar detector at the PEP-II asymmetric B Factory at SLAC.
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Category :
Languages : en
Pages : 4
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Book Description
The prospects for measuring the angle with present day B factories are examined. A number of approaches are discussed with reference to recent preliminary measurements based on a data sample of approximately 88 million B{bar B} pairs collected by the BaBar detector at the PEP-II asymmetric B Factory at SLAC.
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Languages : en
Pages : 8
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We report on the measurement of the CKM angle [gamma] in B{sup {+-}} → DK{sup {+-}} decays with the BABAR detector. A general overview of different methods of analysis and a critical discussion of the most sensitive methods are presented here.
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Languages : en
Pages : 5
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Author:
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Category :
Languages : en
Pages : 4
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We present a short review of the measurements of the CKM angle [gamma] performed by the BABAR experiment. We focus on methods using charged B decays, which give a direct access to [gamma] and provide the best constraints so far.
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Category :
Languages : en
Pages : 12
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Languages : en
Pages : 10
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Measuring the angle [gamma] is an important part of over-constraining the Unitarity Triangle to test Standard Model predictions. There are a number of methods to measure [gamma], and we present results on the progress made in measuring [gamma] with B meson decays, using data collected with the BABAR detector at the PEP-II asymmetric energy ee− collider at SLAC.
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Languages : en
Pages : 4
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We present a feasibility study for a new analysis for extracting the angle of the Unitarity Triangle from the study of the neutral B meson decays. We reconstruct the decay channel B° → {bar D}°K*° with the K*° → K?− and the {bar D}° → K{sub S}?+?− using a D° Dalitz analysis technique. The sensitivity to the angle comes from the interference of the b → c and b → u processes contributing to the same final state and by the fact that the B°({bar B}°) can be unambiguously identified through the sign of electric charge of the kaon from K*°({bar K}*°) decay. The impact of the result of such analysis is evaluated for the actual BaBar statistics.
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Languages : en
Pages : 4
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The recent experimental results on CP violation related to the angles of the Cabibbo-Kobayashi-Maskawa (CKM) unitarity triangle 2[beta] + [gamma] are summarized in these proceedings. These results are obtained with approximately 232 million [Upsilon](4S) → B{bar B} events collected with the BABAR detector at the PEP-II asymmetric-energy B-factory at SLAC. Using the measurements on time-dependent CP asymmetries in B° → D{sup (*){-+}} [pi]{sup {-+}} and B° → D{sup {-+}}[rho]{sup {+-}} decays and theoretical assumptions, one finds.
![Studying B --] S Gamma at BABAR Using a Fully Inclusive Method PDF](https://books.google.com/books/content/images/frontcover/hq4RDAEACAAJ?fife=w80-h100)
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Languages : en
Pages :
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The b [yields] s[gamma] decay represents a possible electromagnetic ''loop'' penguin decay of the B meson. This FCNC process is of high theoretical interest because various scenarios of new physics are expected to have contributions at the same (one loop) level as the Standard Model. The large sample of B[bar B] meson decays collected by the BaBar experiment makes a precision measurement of this rare decay possible. In conjunction with Standard Model predictions at the 10% level, it brings new physics effects into the realm of detection--or seriously constrains models that could predict them. A fully inclusive technique is presented to study the b [yields] s[gamma] transition as a function of photon energy, using 88.5 [+-] 1.0 x 10[sup 6] B[bar B] meson decays collected by the BaBar experiment in the years 2000 to 2002. The expected statistical and systematic uncertainties have been fully determined which enables first comparisons with theoretical predictions and other experimental results. It also lays the basis for the determination of the inclusive branching fraction [Beta](B [yields] X[sub s][gamma]) and the measurement of the photon energy spectrum.
![Studying [b to S Gamma] at BaBar Using a Fully Inclusive Method PDF](https://books.google.com/books/content/images/frontcover/FuE9AQAAIAAJ?fife=w80-h100)
Author: Ruth Elisabeth Schmitz
Publisher:
ISBN:
Category : Particles (Nuclear physics)
Languages : en
Pages : 538
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