English
Related papers

Related papers: Results on \phi 2 from e+e- colliders

200 papers

We report the observation of decays B0->D_s(*)+pi- and B0->D_s(*)-K+ in a sample of 230*10^6 Upsilon(4S)->BBbar events recorded with the BaBar detector at the PEP-II asymmetric-energy e+e- storage ring. We measure the branching fractions…

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

The BABAR collaboration measurements of the B -> pipi, B -> rhopi and B -> rhorho decays are presented. New results, from a 113 fb-1 data sample, on the time-dependent CP asymmetries of the longitudinally polarized component of the B0 ->…

High Energy Physics - Experiment · Physics 2007-05-23 Lydia Roos

We report a measurement of the $B^0\rightarrow\psi(2S)\pi^0$ branching fraction based on the full $\Upsilon(4S)$ data set of $772\times10^{6}$ $B\bar{B}$ pairs collected by the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider.…

High Energy Physics - Experiment · Physics 2016-03-02 V. Chobanova , J. Dalseno , C. Kiesling , A. Abdesselam , I. Adachi , H. Aihara , D. M. Asner , T. Aushev , R. Ayad , V. Babu , I. Badhrees , S. Bahinipati , A. M. Bakich , E. Barberio , P. Behera , V. Bhardwaj , B. Bhuyan , J. Biswal , A. Bobrov , A. Bozek , M. Bračko , T. E. Browder , D. Červenkov , V. Chekelian , A. Chen , B. G. Cheon , R. Chistov , K. Cho , Y. Choi , D. Cinabro , N. Dash , Z. Doležal , Z. Drásal , A. Drutskoy , S. Eidelman , H. Farhat , J. E. Fast , T. Ferber , B. G. Fulsom , V. Gaur , N. Gabyshev , A. Garmash , R. Gillard , Y. M. Goh , P. Goldenzweig , B. Golob , O. Grzymkowska , J. Haba , T. Hara , K. Hayasaka , H. Hayashii , W. -S. Hou , T. Iijima , K. Inami , A. Ishikawa , Y. Iwasaki , I. Jaegle , H. B. Jeon , D. Joffe , K. K. Joo , T. Julius , E. Kato , P. Katrenko , T. Kawasaki , D. Y. Kim , H. J. Kim , J. B. Kim , K. T. Kim , M. J. Kim , S. H. Kim , Y. J. Kim , K. Kinoshita , P. Kodyš , S. Korpar , P. Križan , P. Krokovny , T. Kuhr , R. Kumar , T. Kumita , A. Kuzmin , Y. -J. Kwon , I. S. Lee , H. Li , L. Li , Y. Li , L. Li Gioi , J. Libby , D. Liventsev , M. Masuda , D. Matvienko , H. Miyata , R. Mizuk , G. B. Mohanty , S. Mohanty , A. Moll , H. K. Moon , T. Mori , R. Mussa , E. Nakano , M. Nakao , T. Nanut , Z. Natkaniec , M. Nayak , N. K. Nisar , S. Nishida , S. Ogawa , P. Pakhlov , G. Pakhlova , B. Pal , C. W. Park , H. Park , S. Paul , T. K. Pedlar , R. Pestotnik , M. Petrič , L. E. Piilonen , C. Pulvermacher , J. Rauch , E. Ribežl , M. Ritter , S. Ryu , H. Sahoo , Y. Sakai , S. Sandilya , T. Sanuki , V. Savinov , T. Schlüter , O. Schneider , G. Schnell , C. Schwanda , A. J. Schwartz , Y. Seino , K. Senyo , O. Seon , M. E. Sevior , V. Shebalin , T. -A. Shibata , J. -G. Shiu , B. Shwartz , F. Simon , J. B. Singh , Y. -S. Sohn , A. Sokolov , E. Solovieva , M. Starič , J. Stypula , M. Sumihama , K. Sumisawa , T. Sumiyoshi , U. Tamponi , Y. Teramoto , K. Trabelsi , M. Uchida , S. Uehara , T. Uglov , Y. Unno , S. Uno , P. Urquijo , Y. Usov , C. Van Hulse , P. Vanhoefer , G. Varner , A. Vinokurova , V. Vorobyev , M. N. Wagner , C. H. Wang , M. -Z. Wang , P. Wang , X. L. Wang , M. Watanabe , Y. Watanabe , K. M. Williams , E. Won , J. Yamaoka , S. Yashchenko , H. Ye , J. Yelton , C. Z. Yuan , Y. Yusa , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc

We study the baryonic charmonium decays of B mesons, B+ to etac K+ and B+ to J/psi K+, where the etac and J/psi subsequently decay into a p pbar or Lambda Lambdabar pair. We measure the J/psi to p pbar, Lambda Lambdabar anisotropy…

High Energy Physics - Experiment · Physics 2019-08-14 C. -H. Wu , M. -Z. Wang

Results on a number of rare hadronic B decays are presented. A data sample of $29.1 {\rm fb}^{-1}$ accumulated using the Belle detector at the KEKB asymmetric $e^+e^-$ collider operating at the $\Upsilon(4S)$ resonance is used.

High Energy Physics - Experiment · Physics 2007-05-23 T. J. Gershon

We present preliminary results of searches for exclusive $B^0$ decays to $\pi^+\pi^-\pi^0$ among 22.7 million $b\bar{b}$ pairs collected by the BABAR experiment from electron-positron collisions near the $\Upsilon(4S)$ resonance. We measure…

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

We report results on time-dependent CP asymmetries in $B \to D^{*\mp}\pi^{\pm}$ decays based on a data sample containing 657 {\times} $10^6$ $B\bar{B}$ pairs collected with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider…

High Energy Physics - Experiment · Physics 2019-08-13 S. Bahinipati , K. Trabelsi , K. Kinoshita

We present a measurement of the time-dependent CP-violating asymmetries in neutral B decays to the $\pi^+\pi^-$ CP eigenstate, and an updated measurement of the charge asymmetry in $B^0\to K^+\pi^-$ decays. In a sample of 33 million…

High Energy Physics - Experiment · Physics 2008-11-26 The BABAR Collaboration , H. Aubert

We present the first measurement of decay amplitudes in B -> phi K^* and measurements of branching fractions in B -> phi K^{(*)} decays based on 78.1 fb^{-1} of data recorded at the Upsilon(4S) resonance with the Belle detector at the KEKB…

High Energy Physics - Experiment · Physics 2008-11-26 K. -F. Chen , A. Bozek

We search for the decay B0 -> rho0 rho0 in a data sample of about 227 million Upsilon(4S)-> BBbar decays collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at SLAC. We find no significant signal and set an upper…

High Energy Physics - Experiment · Physics 2008-11-26 The BABAR Collaboration , B. Aubert et al

We measure the time-dependent CP asymmetry parameters in B0 --> K+ K- K0 based on a data sample of approximately 227 million B-meson pairs recorded at the Upsilon(4S) resonance with the BaBar detector at the PEP-II B-meson Factory at SLAC.…

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

We present preliminary measurements of the cross sections for e+e- --> KS KL pi0 and KS KL pi0 pi0 obtained using the technique of Initial State Radiation with 469 fb^-1 of e+e- collision data collected with the BABAR detector at or near…

High Energy Physics - Experiment · Physics 2016-11-28 Wolfgang Gradl

Recent results from BaBar and Belle experiments on $B \bar B$ mixing and $\sin 2\phi_1$ are presented. Accuracy of $\Delta m_d$ measurements has reached 1.2%. Higher order effects within the Standard Model or possible new physics effect…

High Energy Physics - Experiment · Physics 2010-11-23 Kazuo Abe

We present a preliminary measurement of CP-violating parameters S and C from fits of the time-dependence of B0 meson decays to eta' K0. The data were recorded with the BaBar detector at PEP-II and correspond to 227 * 10^6 B-Bbar pairs…

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

We present a measurement of the CP-violating asymmetry in rho+rho- decays using 535 million BBbar pairs collected with the Belle detector at the KEKB e+e- collider. We measure CP-violating coefficients A = 0.16 +- 0.21(stat) +- 0.07 (syst)…

High Energy Physics - Experiment · Physics 2019-08-14 A. Somov , A. J. Schwartz

We report the first observation of CP-violating asymmetries in B0 --> pi+pi- decays based on a 140 fb-1 data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We reconstruct…

High Energy Physics - Experiment · Physics 2019-08-14 K. Abe

We present measurements of branching fractions and charge asymmetries for seven B-meson decays with an eta, eta' or omega meson in the final state. The data sample corresponds to 89 million BBbar pairs produced from e+e- annihilation at the…

High Energy Physics - Experiment · Physics 2008-11-26 The BABAR Collaboration , B. Aubert

I review results related to the CKM angle $\phi_1$($\beta$). These results include recent measurements of CP-violation from the BaBar and Belle experiments in $b\to c \bar{c} s$, $b\to c \bar{c} d$ and $b\to s q \bar{q}$ processes.

High Energy Physics - Experiment · Physics 2010-11-23 T. E. Browder

We report an improved measurement of the partial-rate CP asymmetry in B+ => K0pi+ and B- => K0bar pi- decays. The analysis is based on a data sample of 85 million BBbar pairs collected at the Upsilon(4S) resonance with the Belle detector at…

High Energy Physics - Experiment · Physics 2008-11-26 Y. Unno , K. Suzuki

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