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Related papers: CP Violation Results from B Decays at BaBar

200 papers

We report on a preliminary measurement of time-dependent CP-violating asymmetries in B0 --> J/psi K0S and B0 --> psi(2S) K0S decays recorded by the BABAR detector at the PEP-II asymmetric B Factory at SLAC. The data sample consisted of 9.0…

High Energy Physics - Experiment · Physics 2010-11-23 Yury G. Kolomensky

We present preliminary measurements of branching fractions and CP-asymmetry parameters in two- and three-body charmless hadronic B decays. The available data sample consists of 227 million Upsilon(4S) B decays collected with the BABAR…

High Energy Physics - Experiment · Physics 2017-08-23 Markus Cristinziani

BaBar has found $A_{\rm CP}(\tau^- \to \nu K_S\pi^- [\geq \pi^0]) = (-0.36 \pm 0.23 \pm 0.11)%$ with 2.8 $\sigma$ difference with SM prediction $A_{\rm CP}(\tau^- \to \nu K_S\pi^-) = (0.36 \pm 0.01)%$ based on $K^0 - \bar K^0$ oscillation.…

High Energy Physics - Phenomenology · Physics 2012-10-11 I. I. Bigi

A new and simple procedure to measure the angle $\gamma$ from $B^{\pm} \to \pi^{\pm}\pi^+\pi^-$ and $B^{\pm} \to K^{\pm}\pi^+\pi^-$ decays using SU(3) symmetry is presented. It is based on a full Dalitz plot analysis of these decays. All…

High Energy Physics - Phenomenology · Physics 2010-11-23 R. E. Blanco , C. Gobel , R. Mendez-Galain

This paper describes the determination of the direct CP observables R_cp and A_cp, related to the CKM angle gamma, using B- to D0 K- decays in 1.0 inverse fb of data collected with the CDF II detector. This is the first measurement of these…

High Energy Physics - Experiment · Physics 2019-08-13 Karen Gibson

We present the measurement, performed by the BABAR Collaboration, of the weak phase alpha from the time dependent CP asymmetries in B0--> a_1(1260)+- pi-+ decays. The model error induced by penguin contributions to the B0 --> a_1(1260)+-…

High Energy Physics - Experiment · Physics 2019-08-13 Simone Stracka

We present a measurement of the branching fraction and time-dependent CP violation parameters in B0 --> a_1^+-(1260) pi^-+ decays. The results are obtained from the final data sample containing 772x10^6 BBbar pairs collected at the…

High Energy Physics - Experiment · Physics 2013-01-29 Belle Collaboration , J. Dalseno , I. Adachi , H. Aihara , D. M. Asner , V. Aulchenko , T. Aushev , A. M. Bakich , A. Bay , K. Belous , B. Bhuyan , A. Bozek , M. Bračko , O. Brovchenko , T. E. Browder , V. Chekelian , A. Chen , P. Chen , B. G. Cheon , K. Chilikin , R. Chistov , I. -S. Cho , K. Cho , Y. Choi , Z. Doležal , Z. Drásal , S. Eidelman , J. E. Fast , V. Gaur , N. Gabyshev , A. Garmash , Y. M. Goh , H. Hayashii , Y. Horii , Y. Hoshi , W. -S. Hou , Y. B. Hsiung , H. J. Hyun , T. Iijima , K. Inami , A. Ishikawa , R. Itoh , M. Iwabuchi , Y. Iwasaki , T. Iwashita , T. Julius , J. H. Kang , C. Kiesling , H. O. Kim , J. B. Kim , Y. J. Kim , K. Kinoshita , B. R. Ko , S. Koblitz , P. Kodyš , S. Korpar , P. Križan , P. Krokovny , B. Kronenbitter , T. Kuhr , T. Kumita , Y. -J. Kwon , S. -H. Lee , J. Li , J. Libby , C. Liu , Z. Q. Liu , R. Louvot , J. MacNaughton , D. Matvienko , S. McOnie , K. Miyabayashi , H. Miyata , Y. Miyazaki , G. B. Mohanty , D. Mohapatra , A. Moll , N. Muramatsu , M. Nakao , Z. Natkaniec , E. Nedelkovska , C. Ng , S. Nishida , K. Nishimura , O. Nitoh , S. Ogawa , T. Ohshima , S. Okuno , P. Pakhlov , G. Pakhlova , C. W. Park , H. K. Park , T. K. Pedlar , R. Pestotnik , M. Petrič , L. E. Piilonen , M. Prim , K. Prothmann , M. Ritter , M. Röhrken , H. Sahoo , Y. Sakai , T. Sanuki , O. Schneider , C. Schwanda , A. J. Schwartz , K. Senyo , O. Seon , M. E. Sevior , M. Shapkin , V. Shebalin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , A. Sibidanov , F. Simon , P. Smerkol , Y. -S. Sohn , E. Solovieva , M. Starič , M. Sumihama , T. Sumiyoshi , G. Tatishvili , Y. Teramoto , K. Trabelsi , M. Uchida , S. Uehara , Y. Unno , S. Uno , P. Urquijo , Y. Usov , P. Vanhoefer , G. Varner , C. H. Wang , P. Wang , M. Watanabe , Y. Watanabe , K. M. Williams , E. Won , B. D. Yabsley , Y. Yamashita , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc

We present branching fraction and CP asymmetry measurements as well as angular studies of B to phi phi K decays using 464 x 10^6 BBbar events collected by the BaBar experiment. The branching fractions are measured in the phi phi invariant…

High Energy Physics - Experiment · Physics 2011-08-04 The BABAR Collaboration , J. P. Lees

Proceedings of CKM 2012, the 7th International Workshop on the CKM Unitarity Triangle, University of Cincinnati, USA, 28 September - 2 October 2012.

High Energy Physics - Experiment · Physics 2013-01-16 Tomonari S. Miyashita

We review the present status of CP violation in the standard model. Subsequently we make an excursion in the future in order to see what we could expect in this field in this and the next decade. We present various strategies for the…

High Energy Physics - Phenomenology · Physics 2009-09-25 A. J. Buras

We present an analysis of the decays B0 -> K*0 gamma and B+ -> K*+ gamma using a sample of 383 million BBbar events collected with the BaBar detector at the PEP2 asymmetric energy B factory. We measure the branching fractions BF[B0 -> K*0…

High Energy Physics - Experiment · Physics 2010-04-12 The BABAR Collaboration , B. Aubert

We present the new and updated $BABAR$ measurements of CP-violation studies for many $b\to s $ penguin decay modes. We report the first observation of mixing-induced CP-violation in $B^0 \to \eta ^{'} K^0$ with a significance (including…

High Energy Physics - Experiment · Physics 2007-10-17 BaBar Collaboration , Nitesh Soni

We update the profile of the CKM matrix. The apex (rhobar,etabar) of the Unitarity Triangle is given by means of a global fit. We propose to include therein sin2alpha from the CP-violating asymmetries in B0->rho+rho-, using isospin to…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. Charles , A. Hocker , H. Lacker , S. Laplace , F. R. Le Diberder , J. Malcles , J. Ocariz , M. Pivk , L. Roos

Using a data sample of 62 million \FourS\to B\Bbar decays collected between 1999 and 2001 by the BaBar detector at the PEP2 asymmetric-energy B Factory at SLAC we study events in which one neutral B meson is fully reconstructed in a final…

High Energy Physics - Experiment · Physics 2009-09-29 Gerhard Raven

We present preliminary measurements of the CP asymmetry parameters and CP content in B0 --> K+K-K0L decays, with B0 --> phi K0L events excluded. In a sample of 227 M B bar B pairs collected by the BaBar detector at the PEP-II B Factory at…

High Energy Physics - Experiment · Physics 2007-05-23 B. Aubert , BABAR Collaboration

We present a preliminary measurement of the time-dependent CP asymmetries in decays of neutral B mesons to the final states D*pi using approximately 82 million BBbar events collected by the BaBar experiment at the PEPII storage ring. Events…

High Energy Physics - Experiment · Physics 2007-05-23 The BABAR Collaboration , B. Aubert

We search for the decays B0->rho0rho0, B0->rho0f0, and B0->f0f0 in a sample of about 384 million Upsilon(4S)->BBbar decays collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at SLAC. We find evidence for…

High Energy Physics - Experiment · Physics 2010-03-19 The BABAR Collaboration , B. Aubert

BABAR results are presented for B -> Xs gamma decays, including branching fraction and photon spectrum measurements from both a fully inclusive analysis and a semi-inclusive analysis that reconstructs 38 distinct final states for Xs.

High Energy Physics - Experiment · Physics 2019-08-13 Jack L. Ritchie

We report on the initial measurements of the angle gamma and the sum of angles 2 beta + gamma of the Unitarity Triangle. When compared with indirect information on the value of gamma from other measurements of CKM parameters, the…

High Energy Physics - Experiment · Physics 2007-05-23 Justin Albert

We review the subject of CP violation in the $B$ meson system within the Standard Model of CP violation, which is based on a complex phase in the Cabibbo-Kobayashi-Maskawa (CKM) matrix. Three kinds of CP nonconservation are studied: In…

High Energy Physics - Phenomenology · Physics 2007-05-23 Michael Gronau