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Book Measurements of Beta in B Decays to Charm and Charmonium at BaBar

Download or read book Measurements of Beta in B Decays to Charm and Charmonium at BaBar written by and published by . This book was released on 2007 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this article we will review recent BABAR measurements of Unitarity Triangle angle [beta] in B meson decays to charm and charmonium.

Book B Decays to Open And Hidden Charm at BaBar

Download or read book B Decays to Open And Hidden Charm at BaBar written by S. Ricciardi and published by . This book was released on 2005 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: A wealth of new measurements of hadronic B decays to open charm and charmonium have been performed on the data sample collected by the BaBar experiment at the PEP-II e{sup +}e{sup -} B-factory. We report the first measurement of the rates for inclusive charm production separately for charged and neutral B mesons. Combining measurements of the decay rate of B{sup 0} {yields} D*{sub s}{sup +}D*{sup -} obtained with a partial reconstruction technique and the complete reconstruction of B{sup 0} {yields} D*{sub s}{sup +}D*{sup -} with D{sub s}{sup +} {yields} {phi}{pi}{sup +}, we obtain the most precise measurement of {Beta}(D{sub s}{sup +} {yields} {phi}{pi}{sup +}). We present an update of the measurements of the branching fractions of exclusive B decays to J/{psi}, {psi}(2S), {chi}{sub c1}, {chi}{sub c2} and a kaon or a K*. In addition, we show preliminary results on exclusive decay rates to final states with baryons, or newly-discovered particles, such as D*{sub sJ}(2317), D{sub sJ}(2460){sup +}, and the X(3872).

Book B Decays to Charm and Charmonium States in BABAR

Download or read book B Decays to Charm and Charmonium States in BABAR written by S. Grancagnolo and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent measurements in exclusive hadronic B decays to states with charm are presented, including a review of the B {yields} D{sub sJ}D{sup (*)} decays, and a study of the B{sup -} {yields} J/{psi} K{sup -} {pi}{sup +}{pi}{sup -} decay looking for charmonium resonances. New results are shown on the search of the B{sup 0} {yields} D{sub s}{sup +} {rho}{sup -} and B{sup 0} {yields} J/{psi}{gamma} decays. These analysis are based on the 1999-2003 dataset collected by the BABAR experiment at the PEP-II e{sup +}e{sup -} storage ring at the Stanford Linear Accelerator Center.

Book Hadronic B Decays to Charm and Charmonium With the BaBar Experiment

Download or read book Hadronic B Decays to Charm and Charmonium With the BaBar Experiment written by and published by . This book was released on 2008 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Measurement of CP Violation Parameters in B Quark Decays to Charm Anticharm Down Quarks  Exclusive Decays at the BABAR Experiment

Download or read book Measurement of CP Violation Parameters in B Quark Decays to Charm Anticharm Down Quarks Exclusive Decays at the BABAR Experiment written by and published by . This book was released on 2003 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The BABAR experiment at SLAC provides an opportunity for measurement of CP violation in B decays. A measurement of time-dependent CP violating asymmetries using exclusive B meson decays where the b quark decays to c{bar c}d (including B° 2!D*D*− and B° 2!D*{sup ±}D{sup {-+}} decays) is presented here. This is the first measurement of CP violation in a mode sensitive to the Unitarity Triangle parameter sin2[beta] outside of decays containing charmonium. It provides a comparison to measurements of sin2[beta] using b 2!c{bar c}s, and permits an observation into potential new physics sources of CP violation, such as supersymmetry, via differences between these measurements and those of B° 2!J/[psi] K{sub S}° as statistics of reconstructed neutral B decays to D{sup (*)+} D{sup (*)-} increase. The measured value of the time-dependent CP violating asymmetries are: S = 0.38 ± 0.88(stat) ± 0.12(syst) and C = -0.30 ± 0.50(stat) ± 0.13(syst) for B° 2!D*− D; S = -0.43 ± 1.41(stat) ± 0.23(syst) and C = 0.53 ± 0.74(stat) ± 0.15(syst) for B° 2!D*+ D−; and S = -0.05 ± 0.45(stat) ± 0.05(syst) and C = 0.12 ± 0.30(stat) {+-} 0.05(syst) for B° 2!D*− D+; where S corresponds to CP violation in the interference of mixing and decay and C corresponds to CP violation in decay.

Book B Meson Decays to Open Charm and Charmonium at BABAR

Download or read book B Meson Decays to Open Charm and Charmonium at BABAR written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Since it began recording data in 1999, the BaBar detector at the SLAC B Factory has collected nearly 90 million B meson pairs. Using this sample, they are able to make precise measurements of B decays to open charm and charmonium. In particular, they have measured the rates for B [yields] D[bar D]K, for the color-suppressed modes B[sup 0] [yields] D[sup 0][pi][sup 0], B[sup 0] [yields] D[sup 0][eta], and B[sup 0] [yields] D[sup 0][omega], for B[sup +] [yields] [chi][sub c][sup 0]K[sup +], and for B[sup 0] [yields] D(*)[sub s][sup +] D*[sup -]. They have also begun preparations for a measurement of the CKM angle [gamma] by studying the modes B[sup +] [yields] D[sup 0]K[sup +], B[sup 0] [yields] D(*)[sub s][sup +] [pi][sup -], and B[sup 0] [yields] D(*)[sub s][sup +] K[sup -].

Book B Decays to Hadronic States with Charm Charmonium in BABAR

Download or read book B Decays to Hadronic States with Charm Charmonium in BABAR written by and published by . This book was released on 2003 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper the studies of three different B decays to hadronic states are presented. These results are based on 1999-2003 dataset collected by the BABAR experiment at the PEP-II ee− storage ring at the Stanford Linear Accelerator Center. The measurements are the hadronic branching fraction of B 2!J/[Psi]p{bar {Lambda}}, B° 2!J/[Psi]p{bar p}, B° 2!D*{sup {+-}} D{sup {-+}}, and the direct CP-asymmetry in B° 2!D°(CP)K− channels.

Book Babar

    Book Details:
  • Author : P. Grenier
  • Publisher :
  • Release : 2006
  • ISBN :
  • Pages : 4 pages

Download or read book Babar written by P. Grenier and published by . This book was released on 2006 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present measurements of time-dependent CP asymmetries of neutral B decays to several charm and charmonium final states. Data have been collected with the BABAR detector at the PEP-II storage ring at the Stanford Linear Accelerator Center. In the absence of penguin contribution, the Standard Model predicts the time-dependent CP asymmetry parameters S and C are to be {eta}{sub CP} sin(2{beta}) and 0, respectively.

Book Measurement of Inclusive and Exclusive B Decays to Charmonium with BaBar

Download or read book Measurement of Inclusive and Exclusive B Decays to Charmonium with BaBar written by and published by . This book was released on 2000 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using 8.5M BB events recorded by the BABAR detector the yield of inclusive J[psi], the branching ratios of [psi](2S) and x{sub c} are presented. Combining the charmonium state with either a K{sup +-}, K{sub s}°, K*{sup +-} exclusive B decays are reconstructed and their branching ratios determined. Using the fully reconstructed decays, both the B° B{sup +-} masses and their difference is measured. Finally the contributions of CP even and odd amplitudes in the decay B → J/[psi] K* are determined from an angular analysis.

Book B Decays to Charm and Charmonium States in BABAR

Download or read book B Decays to Charm and Charmonium States in BABAR written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Hadronic B Decays to Open Charm at the BaBar Experiment

Download or read book Hadronic B Decays to Open Charm at the BaBar Experiment written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using about 23M B{bar B} events collected in 1999-2000 with the BABAR detector, they report on the decays B 2!D(*){bar D}(*)K and B° 2!D*D*−. The branching fractions of the low background decay modes B° 2!D*− D(*)°K are determined to be [Beta](B° 2!D*− D°K+) = (2.8 ± 0.7 ± 0.5) x 10−3 and [Beta](B° 2!D*−D*°K+) = (6.8 ± 1.7 ± 1.7) x 10−3, where the first error quoted is statistical and the second systematic. Observation of a significant number of candidates in the color-suppressed decay mode B+ 2!D*+D*− K+ is reported with a branching fraction [Beta](B+ 2!D*+D*− K+) = (3.4 ± 1.6 ± 0.9) x 10−3. Decays of the type B 2!D(*){bar D}(*) can be used to provide a measurement of the parameter sin2[beta] of the Unitarity Triangle. For this decay mode they measure a branching fraction of [Beta](B° 2!D*+D*−) = (8.0 ± 1.6 ± 1.2) x 10−4.

Book Measurements of Sin2beta at BaBar with Charmonium and Penguin Decays

Download or read book Measurements of Sin2beta at BaBar with Charmonium and Penguin Decays written by Katherine A. George and published by . This book was released on 2005 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: This article summarizes measurements of time-dependent CP asymmetries in decays of neutral B mesons to charmonium, open-charm and gluonic penguin-dominated charmless final states. Unless otherwise stated, these measurements are based on a sample of approximately 230 million {Upsilon}(4S) {yields} B{bar B} decays collected by the BABAR detector at the PEP-II asymmetric-energy B-factory.

Book B Meson Decays to Open Charm and Charmonium at BABAR

Download or read book B Meson Decays to Open Charm and Charmonium at BABAR written by E. Varnes and published by . This book was released on 2003 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since it began recording data in 1999, the BaBar detector at the SLAC B Factory has collected nearly 90 million B meson pairs. Using this sample, they are able to make precise measurements of B decays to open charm and charmonium. In particular, they have measured the rates for B {yields} D{bar D}K, for the color-suppressed modes B{sup 0} {yields} D{sup 0}{pi}{sup 0}, B{sup 0} {yields} D{sup 0}{eta}, and B{sup 0} {yields} D{sup 0}{omega}, for B{sup +} {yields} {chi}{sub c}{sup 0}K{sup +}, and for B{sup 0} {yields} D(*){sub s}{sup +} D*{sup -}. They have also begun preparations for a measurement of the CKM angle {gamma} by studying the modes B{sup +} {yields} D{sup 0}K{sup +}, B{sup 0} {yields} D(*){sub s}{sup +} {pi}{sup -}, and B{sup 0} {yields} D(*){sub s}{sup +} K{sup -}.

Book Measurement of Exclusive B Decays to Charmonium and K Or K  Branching Fractions with the BaBar Detector

Download or read book Measurement of Exclusive B Decays to Charmonium and K Or K Branching Fractions with the BaBar Detector written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report preliminary results on the measurement of branching fractions of exclusive decays of neutral and charged B mesons into two-body final states containing a charmonium state and a light strange meson. The charmonium mesons considered are J/[psi], [psi](2S) and [chi][sub c1], and the light mesons are either K or K*. They use a sample of about 124 million B[bar B] events collected with the BABAR detector at the PEP-II storage ring at the Stanford Linear Accelerator Center.

Book B Decays to Charm States at BABAR

Download or read book B Decays to Charm States at BABAR written by and published by . This book was released on 2004 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper recent results in the field of B meson decays to states containing charm are presented. These analyses are based on the 1999-2003 dataset collected by the BABAR experiment at the PEP-II ee− storage ring at the Stanford Linear Accelerator Center. Special attention is devoted to B decays to final states containing D mesons. In addition a few new results from B decays to charmonium states are reported.

Book Exclusive B Decays to Charmonium Final States

Download or read book Exclusive B Decays to Charmonium Final States written by and published by . This book was released on 2000 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report on exclusive decays of B mesons into final states containing charmonium using data collected with the BABAR detector at the PEP-II storage rings. The charmonium states considered here are J/[psi], [psi](2S), and [chi]{sub c1}. Branching fractions for several exclusive final states, a measurement of the decay amplitudes for the B° 2!J/[psi] K* decay, and measurements of the B° and B masses are presented. All of the results we present here are preliminary.

Book Study of B Decays to Charmonium at BaBar

Download or read book Study of B Decays to Charmonium at BaBar written by and published by . This book was released on 2002 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using 22.7 million BB events recorded with the BABAR detector, the inclusive branching fractions for the production of J/[psi], [psi](2S) and [chi]{sub c} in B decays are presented. Combining the charmonium state with a K{sup {+-}}, K°, K*{sup {+-}}, K*° or [pi]°, B decays are reconstructed exclusively and branching fractions are determined. A preliminary study is also presented for the B → [eta]{sub c}K decay mode.