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The BABAR detector, at the PEP-II asymmetric B Factory at SLAC collected a sample of 32 million BBbar pairs whilst operating at energies near the Upsilon(4S) resonance between October 1999 and May 2001. An study of time-dependent…

High Energy Physics - Experiment · Physics 2010-11-23 James Weatherall

In perturbative QCD approach, based on the first order of isospin symmetry breaking, we study the direct $CP$ violation in the decay of $\bar{B}_s^0\to\rho(\omega )K^{*0}\to {\pi^+}{\pi^-}K^{*0}$. An interesting mechanism is applied to…

High Energy Physics - Phenomenology · Physics 2021-10-26 Sheng-Tao Li , Gang Lü

Relative branching fractions of B^0_d,s -> h^+ h^'- decays (where h, h' = K or pi) and the direct CP asymmetry A_CP in the B^0_d -> K^+ pi^- mode are measured with 179 +- 11 pb^-1 of data collected at sqrt{s} = 1.96 TeV using the CDF II…

High Energy Physics - Experiment · Physics 2012-11-14 Andreas Warburton

We present a search for direct CP violation in B+- -> J/psi K+- and B+- -> psi(2S) K+- decays. In a sample of 9.7 million B meson pairs collected with the CLEO detector, we have fully reconstructed 534 B+- -> J/psi K+- and 120 B+- ->…

High Energy Physics - Experiment · Physics 2010-04-08 G. Bonvicini

We give a brief review of direct $CP$ violation effects in charmless $B$ decays, both at the inclusive and at the exclusive level. It is emphasized that typical exclusive final states are composed of 2--4 $K$ or $\pi$'s, hence particle…

High Energy Physics - Phenomenology · Physics 2015-06-25 George W. S. Hou

Using 22.7M BBbar events collected with the BABAR detector at SLAC, we present preliminary measurements of the branching fractions for charmless hadronic decays of B mesons into two-body, quasi two-body and three-body final states with…

High Energy Physics - Experiment · Physics 2007-05-23 Marcella Bona

Using a sample of 227 million $\Upsilon(4S) \to B \bar{B}$ events collected with the $BABAR$ detector at the PEP-II $B$ Factory in 1999--2004, we study $B^- \to D^0 K^*(892)^-$ decays where $K^{*-} \to K^0_S \pi^-$ and $D^0 \to K^-\pi^+,…

High Energy Physics - Experiment · Physics 2009-09-29 B. Aubert , BABAR Collaboration

We present the first results on the Dalitz-plot structure and improved measurements of the time-dependent CP-violation parameters of the process $B^0 \rightarrow K^0_S K^0_S K^0_S$ obtained using $468\times10^{6}$ $B\bar{B}$ decays…

High Energy Physics - Experiment · Physics 2019-08-18 The BABAR Collaboration , J. P. Lees

We report on a measurement of CP-violating asymmetries (Acp) in the Cabibbo-suppressed D0 --> pi+ pi- and D0 --> K+K- decays reconstructed in a data sample corresponding to 5.9 fb-1 of integrated luminosity collected by the upgraded…

High Energy Physics - Experiment · Physics 2013-05-30 CDF Collaboration , T. Aaltonen

The NA48/2 result, based on the data collected during the 2003 run, on direct CP violation in $K^{\pm}\to\pi^{\pm}\pi^0\pi^0$ decay is presented. The main goal of the experiment is to reach a sensitivity at level of $10^{-4}$ in the…

High Energy Physics - Experiment · Physics 2007-05-23 G. Lamanna

Recent studies of hadronic -meson decays are reported. Some experimental searches of CP-symmetry violation using model independent methods are presented. An importance of unitarity constraints in construction of phenomenological models of…

High Energy Physics - Phenomenology · Physics 2014-11-07 Leonard Lesniak

We present preliminary measurements of the CP asymmetry parameters in B^0 -> K^0_S K^0_S K^0_S decays, reconstructing two of the K^0_S into pi^+pi^- and one into pi^0pi^0. In a sample of 227M $B\bar B$ pairs collected by the BABAR detector…

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

We present a novel dynamics for generating sizable CP-violating asymmetries in the decays of charged $B^\mp\to \pi^\mp \omega, \pi^\mp\rho^0, \pi^0\rho^\mp$, and in $\bar{B^0}(B^0)\to\pi^\mp\rho^\pm$. The dynamics for the necessary…

High Energy Physics - Phenomenology · Physics 2009-11-10 Saul Barshay , Georg Kreyerhoff , Lalit M. Sehgal

Using a sample of 232 million Upsilon(4S) --> B Bbar events collected with the BABAR detector at the PEP-II B Factory in 1999-2004, we study B- --> D0 K*(892)- decays where K*- --> KS pi- and D0 --> K-pi+, K-pi+pi0, K-pi+pi+pi- (non-CP…

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

We study B+- -- > K+-K+K- decays using the QCD factorization model with final state interactions between K+ and K- mesons taken into account. The parameters of the model are fitted to the data of the BABAR and LHCb collaborations. We…

High Energy Physics - Phenomenology · Physics 2024-05-29 L. Lesniak , P. Zenczykowski

We discuss several aspects of direct CP asymmetries in B decays, which are very useful in spite of hadronic uncertainties in asymmetry calculations. 1) Asymmetries in decays to $D^{(*)}K^{(*)}$, $\pi^+\pi^-, \rho^+\rho^-$, providing…

High Energy Physics - Phenomenology · Physics 2008-11-26 Michael Gronau

A large CP asymmetry predicted recently in the framework of the QCD factorization model for the B+- --> K+- K+ K- decays in the range of the K+ K- invariant masses above the phi(1020) resonance has been confirmed by the LHCb Collaboration.…

High Energy Physics - Phenomenology · Physics 2014-09-17 Leonard Lesniak , Piotr Zenczykowski

We search for CP violation in Cabibbo-suppressed charged D meson decays by measuring the difference between the CP violating asymmetries for the Cabibbo-suppressed decays D+ -> K+K-pi+ and the Cabibbo-favored decays Ds -> K+K-pi+ in the…

High Energy Physics - Experiment · Physics 2015-05-30 Belle Collaboration , M. Starič , H. Aihara , K. Arinstein , D. M. Asner , T. Aushev , A. M. Bakich , A. Bay , V. Bhardwaj , B. Bhuyan , A. Bozek , M. Bračko , T. E. Browder , 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 , B. Golob , J. Haba , K. Hayasaka , Y. Horii , Y. Hoshi , W. -S. Hou , Y. B. Hsiung , T. Iijima , K. Inami , A. Ishikawa , R. Itoh , M. Iwabuchi , Y. Iwasaki , T. Iwashita , T. Julius , J. H. Kang , T. Kawasaki , C. Kiesling , H. J. Kim , H. O. Kim , J. B. Kim , K. T. Kim , M. J. Kim , Y. J. Kim , K. Kinoshita , B. R. Ko , N. Kobayashi , S. Koblitz , P. Kodyš , S. Korpar , P. Križan , T. Kumita , Y. -J. Kwon , J. S. Lange , S. -H. Lee , J. Li , Y. Li , J. Libby , C. Liu , Z. Q. Liu , R. Louvot , S. McOnie , K. Miyabayashi , H. Miyata , Y. Miyazaki , G. B. Mohanty , E. Nakano , Z. Natkaniec , S. Nishida , O. Nitoh , T. Nozaki , T. Ohshima , S. Okuno , S. L. Olsen , G. Pakhlova , H. K. Park , K. S. Park , R. Pestotnik , M. Petrič , L. E. Piilonen , M. Röhrken , S. Ryu , H. Sahoo , K. Sakai , Y. Sakai , T. Sanuki , O. Schneider , C. Schwanda , A. J. Schwartz , O. Seon , M. E. Sevior , V. Shebalin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , B. Shwartz , F. Simon , P. Smerkol , Y. -S. Sohn , A. Sokolov , S. Stanič , M. Sumihama , K. Sumisawa , G. Tatishvili , Y. Teramoto , K. Trabelsi , M. Uchida , S. Uehara , T. Uglov , Y. Unno , S. Uno , P. Urquijo , G. Varner , A. Vossen , C. H. Wang , M. -Z. Wang , M. Watanabe , Y. Watanabe , K. M. Williams , E. Won , B. D. Yabsley , Y. Yamashita , C. Z. Yuan , C. C. Zhang , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc

We study the possibility of measuring nonstandard CP violation effects through Dalitz plot analysis in B^\pm -> D_s^\pm D^0 pi^0 decays. The accuracy in the extraction of CP violating phases is analyzed by performing a Monte Carlo…

High Energy Physics - Phenomenology · Physics 2009-11-10 L. Epele , D. Gomez Dumm , R. Mendez-Galain , A. Szynkman

We present the results of a time-dependent Dalitz plot analysis of B0 --> pi+ pi- pi0 decays based on a 414/fb data sample that contains 449 x 10^6 BB pairs. The data was collected on the Upsilon(4S) resonance with the Belle detector at the…

High Energy Physics - Experiment · Physics 2008-11-26 The Belle Collaboration , A. Kusaka , C. C. Wang