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ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (16 download)
Download or read book Time-integrated Measurements of the CKM Angle Gamma/phi3 in BABAR. written by and published by . This book was released on 2013 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (871 download)
Download or read book Measurements of the CKM Angle Phi3/gamma written by and published by . This book was released on 2007 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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].
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ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (16 download)
Download or read book Measurements of the CKM Angle Gamma with BaBar written by and published by . This book was released on 2013 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CKM Unitarity Angles Alpha (Phi(2)) And Gamma (Phi(3)). written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The author reports on the experimental studies of the CKM unitarity angles [alpha]([phi]2) and [gamma]([phi]3) with emphasis on recent measurements by the Bell and Babar experiments at the B-factory accelerators.
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Author : Max Arjen Baak
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ISBN 13 :
Total Pages : 215 pages
Book Rating : 4.:/5 (195 download)
Download or read book Measurement of CKM-angle [gamma] with Charmed B0 Meson Decays written by Max Arjen Baak and published by . This book was released on 2007 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (873 download)
Download or read book Measurements of the CKM Angle Gamma at BaBar written by and published by . This book was released on 2007 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : V. Tisserand
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ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (316 download)
Download or read book Measurement of the CKM-Angle Gamma at BaBar written by V. Tisserand and published by . This book was released on 2006 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present the results of the measurements employed by the BABAR Collaboration, to determine the value of the Cabibbo-Kobayashi-Maskawa (CKM) CP-violating phase {gamma} ({triple_bond} arg [-V{sub ud}V*{sub ub}/V{sub cd}V*{sub cb}]). These measurements are based on the studies performed with the charged B-decays B{sup -} {yields} {tilde D}{sup 0} K{sup -}, B{sup -} {yields} {tilde D}*{sup 0} K*{sup -}, where {tilde D}{sup 0} indicates either a D{sup 0} or a {bar D}{sup 0} meson. A sample of about 230 million B{bar B} pairs collected by the BABAR detector [1], at the PEP-II asymmetric-energy e{sup +}e{sup -} collider at SLAC, is used.
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ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (16 download)
Download or read book 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 published by . This book was released on 2008 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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}
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ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (16 download)
Download or read book Measurement of the CKM Angle Gammma With B-+ ---]D(*)[K0(S) Pi- Pi+]K(*)-+ Decays in BaBar written by and published by . This book was released on 2007 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Jean-Pierre Lees
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ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (316 download)
Download or read book Measurement of the CKM Angles Gamma And 2 Beta + Gamma at B Factories written by Jean-Pierre Lees and published by . This book was released on 2006 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: On behalf of the BABAR and Belle collaborations, the authors report on the measurement of the angle {gamma} and of the sum of angles 2{beta} + {gamma} of the Unitarity Triangle.
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ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (16 download)
Download or read book Improved Measurement of the CKM Angle Gamma in B-̂+ to D(̂*) K(̂*)-+Decays with a Dalitz Plot Analysis of D Decays to K_S0̂ Pi+ Pi- and K_S0̂ K+ K- written by and published by . This book was released on 2008 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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}
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ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (16 download)
Download or read book Measurement of the CKM Angles Alpha and Gamma at the BaBar Experiment written by and published by . This book was released on 2007 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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!?+?−?°.
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ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (893 download)
Download or read book Measurement of the CKM Angles at BaBar And Belle written by and published by . This book was released on 2007 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary goal of the BaBar and Belle experiments is to overconstrain the CKM Unitarity Triangle. Measurements of the angles of this triangle, known as [beta], [alpha], and [gamma] (or [phi]1, [phi]2, and [phi]3) give insight into the Standard Model description of CP violation in the quark sector. BaBar and Belle have recorded almost 1 ab−1 combined, and have measured [beta] to high precision. Measurements of [alpha] and [gamma] are less precise at present, but both experiments are rapidly accumulating data and developing new analysis techniques, and measurements of these angles will continue to provide useful constraints on the Standard Model description of CP violation in the years to come.
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ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (871 download)
Download or read book Measurement of the CKM Angle Gamma in B+- to D K+- Decays With the BaBar Detector written by and published by . This book was released on 2007 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Max Arjen Baak
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ISBN 13 :
Total Pages : 215 pages
Book Rating : 4.:/5 (5 download)
Download or read book Measurement of CKM-angle Γ with Charmed B0 Meson Decays written by Max Arjen Baak and published by . This book was released on 2007* with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roel Aaij
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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (124 download)
Download or read book Measurement of the CKM Angle Γ in B± → DK±and B± → Dπ±decays with D → K0Sh+h− written by Roel Aaij and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nicola Neri
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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (18 download)
Download or read book Measurement of the CKM Angle Γ with a D0 Dalitz Analysis of the B± -> D() K± Decays in BABAR written by Nicola Neri and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
