Measurement Of The Ckm Angle Gamma In B0 To Anti D0 D0 K 0 With A Dalitz Analysis Of D0 To K S Pi Pi

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Measurement Of The Ckm Angle Gamma In B0 To Anti D0 D0 K 0 With A Dalitz Analysis Of D0 To K S Pi Pi

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Author :
language : en
Publisher:
Release Date : 2008

Measurement Of The Ckm Angle Gamma In B0 To Anti D0 D0 K 0 With A Dalitz Analysis Of D0 To K S Pi Pi 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 authors present a measurement of the angle? of the Unitarity Triangle with a Dalitz analysis of neutral D decays to K{sub S}??− from the processes B° → {bar D}°(D°)K*° ({bar B}° → D°({bar D}°){bar K}*°) with K*° → K+?− ({bar K}*° → K−?+). Using a sample of 371 x 106 B{bar B} pairs collected with the BABAR detector at PEP II, they measure the angle? as a function of r{sub S}, the magnitude of the average ratio between b → u and b → c amplitudes. Combining this result with the available information on r{sub S}, they obtain? = (162 ± 56){sup o} or (342 ± 56){sup o} and r{sub S}

Measurement Of The Ckm Angle Gammma With B D K0 S Pi Pi K Decays In Babar

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Author :
language : en
Publisher:
Release Date : 2007

Measurement Of The Ckm Angle Gammma With B D K0 S Pi Pi K Decays In Babar written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

We report on the measurement of the Cabibbo-Kobayashi-Maskawa angle? through a Dalitz analysis of neutral D decays to K-short?−? in the processes B{sup {minus_plus}} → D(*)K{sup {minus_plus}} and B{sup {minus_plus}} → DK*{sup {minus_plus}}, D* → D?°, D?, with the BaBar detector at the SLAC PEP-II e+e− asymmetric-energy collider.

Improved Measurement Of The Ckm Angle Gamma In B To D K Decays With A Dalitz Plot Analysis Of D Decays To K S0 Pi Pi And K S0 K K

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Author :
language : en
Publisher:
Release Date : 2008

Improved Measurement Of The Ckm Angle Gamma In B To D K Decays With A Dalitz Plot Analysis Of D Decays To K S0 Pi Pi And K S0 K K 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.

We report on an improved measurement of the Cabibbo-Kobayashi-Maskawa CP-violating phase? through a Dalitz plot analysis of neutral D meson decays to K{sub s}°??− and K{sub s}°K+K− produced in the processes B{sup {-+}} → DK{sup {-+}}, B{sup {-+}} → D* K{sup {-+}} with D* → D?°, D?, and B{sup {-+}} → DK*{sup {-+}} with K8{sup {-+}} → K{sub S}°?{sup {-+}}. Using a sample of 383 million B{bar B} pairs collected by the BABAR detector, we measure? = (76 ± 22 ± 5± 5){sup o} (mod 180{sup o}), where the first error is statistical, the second is the experimental systematic uncertainty and the third reflects the uncertainty on the description of the Dalitz plot distributions. The corresponding two standard deviation region is 29{sup o}

Measurement Of The Angle Gamma In B D 0 K Decays With The Dalitz Analysis Of D0 Ks Pi Pi

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Author :
language : en
Publisher:
Release Date : 2006

Measurement Of The Angle Gamma In B D 0 K Decays With The Dalitz Analysis Of D0 Ks Pi Pi written by 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.

Measurement Of Gamma In B To D K And B To D K Decays With A Dalitz Analysis Of D To Ks Pi Pi

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Author : J. C. Chen
language : en
Publisher:
Release Date : 2005

Measurement Of Gamma In B To D K And B To D K Decays With A Dalitz Analysis Of D To Ks Pi Pi written by J. C. Chen 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.

We present a measurement of the Cabibbo-Kobayashi-Maskawa CP-violating phase {gamma} with a Dalitz plot analysis of neutral D-meson decays to the K{sub S}{sup 0} {pi}{sup -}{pi}{sup +} final state from B{sup {-+}} {yields} D{sup (*)}K{sup {-+}} and B{sup {-+}} {yields} DK*{sup {-+}} decays, using a sample of 227 million B{bar B} pairs collected by the BABAR detector. We measure {gamma} = (67 {+-} 28 {+-} 13 {+-} 11){sup o}, where the first error is statistical, the second is the experimental systematic uncertainty and the third reflects the Dalitz model uncertainty. This result suffers from a two-fold ambiguity. The contribution to the Dalitz model uncertainty due to the description of the {pi}{pi} S-wave in D{sup 0} {yields} K{sub S}{sup 0}{pi}{sup -}{pi}{sup +}, evaluated using a K-matrix formalism, is found to be 3{sup o}.

Measurement Of Gamma In B To D K Decays With A Dalitz Analysis Of D To K0s Pi Pi

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Author :
language : en
Publisher:
Release Date : 2005

Measurement Of Gamma In B To D K Decays With A Dalitz Analysis Of D To K0s Pi Pi written by 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.

Measurement Of The Ckm Angle With A D0 Dalitz Analysis Of The B D K Decays In Babar

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Author : Nicola Neri
language : en
Publisher:
Release Date : 2005

Measurement Of The Ckm Angle With A D0 Dalitz Analysis Of The B D K Decays In Babar written by Nicola Neri 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.

Measurements Of The Ckm Angle Phi3 Gamma

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Author :
language : en
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Release Date : 2007

Measurements Of The Ckm Angle Phi3 Gamma written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

We present a review on the measurements of the CKM angle [gamma] ([phi]3)1 as performed by the BABAR and Belle experiments at the asymmetric-energy ee− B factories colliders PEP-II and KEKB. These measurements are using either charged or neutral B decays. For charged B decays the modes {tilde D}°K−, {tilde D}*°K−, and {tilde D}°K*− are employed, where {tilde D}° indicates either a D° or a {bar D}° meson. Direct CP violation is exploited. It is caused by interferences between V{sub ub} and V{sub cb} accessible transitions that generate asymmetries in the final states. For these decays various methods exist to enhance the sensitivity to the V{sub ub} transition, carrying the weak phase [gamma]. For neutral B decays, the modes D{sup (*){+-}}[pi]{sup {-+}} and D{sup {+-}}[rho]{sup {-+}} are used. In addition to the V{sub ub} and V{sub cb} interferences, these modes are sensitive to the B°-{bar B}° mixing, so that time dependent analyses are performed to extract sin(2[beta] + [gamma]). An alternative method would use the lower branching ratios decay modes {tilde D}{sup (*)0}{bar K}{sup (*)0} where much larger asymmetries are expected. The various available methods are mostly ''theoretically clean'' and always free of penguins diagrams. In some cases a high sensitivity to [gamma] is expected and large asymmetries may be seen. But these measurements are always experimentally difficult as one has to face with either low branching ratios, or small asymmetries, or additional technical/theoretical difficulties due to Dalitz/SU(3) and re-scattering models needed to treat/estimate nuisance parameters such as unknown strong phases and the relative magnitude of the amplitude of the interfering ''V{sub ub}'' transitions. Thus at the present time only a relatively limited precision on [gamma] can be extracted from these measurements. The current world average is [gamma] = (7826{sup +19}){sup o} [1]. For other methods and long term perspectives, as discussed in details, the reader is invited to consult the proceedings of the recent CKM workshop that was held in Nagoya (Japan) in December 2006 [2].

Measurement Of The Ckm Angles Alpha And Gamma At The Babar Experiment

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Author :
language : en
Publisher:
Release Date : 2007

Measurement Of The Ckm Angles Alpha And Gamma At The Babar Experiment written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

We present recent measurements of the CKM angles alpha and gamma using data collected by the BaBar detector at the PEP-II asymmetric-energy ee− collider at the Stanford Linear Accelerator Center. In addition to constraints on alpha from the decays B0 2!?+?−, B0 2!?+?− and B0 2!?+?−, we also report the first measurement of time-dependent CP asymmetries in the decay B0 2!a1+(1260)?−. We present measurements of gamma in B+ 2!D(*)0 K+ decays using a Dalitz analysis in the modes D° 2!Ks?+?− and D° 2!?+?−?°. We present recent measurements of the CKM angles alpha and gamma using data collected by the BaBar detector at the PEP-II asymmetric-energy e+e− collider at the Stanford Linear Accelerator Center. In addition to constraints on alpha from the decays B0 ->?+?−, B0 2!?+?− and B0 2!?+?−, we also report the first measurement of time-dependent CP asymmetries in the decay B0 2!a1+(1260)?−. We present measurements of gamma in B+ 2!D(*)0 K+ decays using a Dalitz analysis in the modes D° 2!Ks?+?− and D° 2!?+?−?°.

Measurement Of The Ckm Angle Gamma In B To D K Decays With The Babar Detector

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Author :
language : en
Publisher:
Release Date : 2007

Measurement Of The Ckm Angle Gamma In B To D K Decays With The Babar Detector written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

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.