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Related papers: CP violation in B0 -> pi+ pi- decay

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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 updated measurements of branching fractions and CP-violating asymmetries for neutral B meson decays to two-body final states of charged pions and kaons. The results are obtained from a data sample of about 60 million Y(4S) to BB…

High Energy Physics - Experiment · Physics 2007-05-23 P. D. Dauncey

We present preliminary results of improved measurements of the CP-violating asymmetries and branching fractions in the decays B0 -> pi+ pi-, B0 -> K+ pi-, B0 -> pi0 pi0, and B0 -> K0 pi0. This update includes all data taken at the Y(4S)…

High Energy Physics - Experiment · Physics 2008-07-31 The BABAR Collaboration , B. Aubert

We present an improved measurement of the standard model CP violation parameter sin2phi_1 (also known as sin2beta) based on a sample of 85 times 10^6 B Bbar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB…

High Energy Physics - Experiment · Physics 2007-05-23 The Belle Collaboration , K. Abe

We present a measurement of the Standard Model CP violation parameter sin 2phi_1 based on a 29.1 fb^{-1} data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. One neutral B…

High Energy Physics - Experiment · Physics 2010-05-28 K. Abe , The Belle Collaboration

We report a measurement of the CP violation parameters in b->c anti-c d decays. Mixing-induced CP violation involving this transition is studied using a sample of B0->J/psi pi0, D*+D*- and D*+-D-+ decays with a data set accumulated at the…

High Energy Physics - Experiment · Physics 2017-08-23 T. Aushev

We present preliminary measurements of direct and indirect CP-violating asymmetries in the decays of neutral B mesons to pi+pi-pi0 and K+-pi-+pi0 final states dominated by the rho+- resonance, using a time-dependent maximum likelihood…

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

This report describes an observation of mixing-induced CP violation and a measurement of the CP violation parameter, sin(2phi_1), with the Belle detector at the KEKB asymmetric e+e- collider. Using a data sample of 29.1 fb-1 recorded on the…

High Energy Physics - Experiment · Physics 2008-11-26 Belle Collaboration , K. Abe

We report improved measurements of time-dependent CP violation parameters for B^0(\bar{B}^0) -> psi(2S) K_S. This analysis is based on a data sample of 657x10^6 BBbar pairs collected at the Y(4S) resonance with the Belle detector at the…

High Energy Physics - Experiment · Physics 2019-08-13 H. Sahoo , T. E. Browder , K. Trabelsi

We search for $CP$ violation in the charged charm meson decay $D^{+}\to\pi^{+}\pi^{0}$, based on a data sample corresponding to an integrated luminosity of $\rm 921~fb^{-1}$ collected by the Belle experiment at the KEKB $e^{+}e^{-}$…

High Energy Physics - Experiment · Physics 2018-03-07 Belle Collaboration , V. Babu , K. Trabelsi , G. B. Mohanty , T. Aziz , D. Greenwald , I. Adachi , H. Aihara , S. Al Said , D. M. Asner , H. Atmacan , R. Ayad , I. Badhrees , S. Bahinipati , A. M. Bakich , V. Bansal , P. Behera , M. Berger , V. Bhardwaj , J. Biswal , A. Bobrov , A. Bozek , M. Bračko , T. E. Browder , D. Červenkov , A. Chen , B. G. Cheon , K. Chilikin , K. Cho , Y. Choi , S. Choudhury , D. Cinabro , N. Dash , S. Di Carlo , Z. Doležal , Z. Drásal , D. Dutta , S. Eidelman , D. Epifanov , J. E. Fast , T. Ferber , B. G. Fulsom , V. Gaur , N. Gabyshev , A. Garmash , M. Gelb , P. Goldenzweig , B. Golob , Y. Guan , E. Guido , J. Haba , K. Hayasaka , H. Hayashii , M. T. Hedges , T. Horiguchi , W. -S. Hou , K. Inami , A. Ishikawa , R. Itoh , M. Iwasaki , W. W. Jacobs , H. B. Jeon , S. Jia , Y. Jin , D. Joffe , K. K. Joo , T. Julius , A. B. Kaliyar , J. H. Kang , K. H. Kang , G. Karyan , P. Katrenko , T. Kawasaki , C. Kiesling , D. Y. Kim , H. J. Kim , J. B. Kim , K. T. Kim , S. H. Kim , Y. J. Kim , K. Kinoshita , P. Kodyš , S. Korpar , D. Kotchetkov , P. Križan , R. Kroeger , P. Krokovny , T. Kuhr , R. Kulasiri , R. Kumar , A. Kuzmin , Y. -J. Kwon , J. S. Lange , L. K. Li , L. Li Gioi , J. Libby , D. Liventsev , M. Lubej , T. Luo , M. Masuda , T. Matsuda , D. Matvienko , M. Merola , K. Miyabayashi , H. Miyata , R. Mizuk , T. Mori , M. Mrvar , E. Nakano , M. Nakao , T. Nanut , K. J. Nath , Z. Natkaniec , M. Nayak , M. Niiyama , N. K. Nisar , S. Nishida , S. Ogawa , S. Okuno , H. Ono , Y. Ono , W. Ostrowicz , P. Pakhlov , G. Pakhlova , B. Pal , S. Pardi , C. S. Park , H. Park , S. Paul , R. Pestotnik , L. E. Piilonen , V. Popov , K. Prasanth , C. Pulvermacher , J. Rauch , P. K. Resmi , M. Ritter , A. Rostomyan , Y. Sakai , M. Salehi , S. Sandilya , L. Santelj , T. Sanuki , V. Savinov , O. Schneider , G. Schnell , C. Schwanda , A. J. Schwartz , Y. Seino , K. Senyo , O. Seon , I. S. Seong , M. E. Sevior , V. Shebalin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , B. Shwartz , F. Simon , A. Sokolov , E. Solovieva , S. Stanič , M. Starič , J. F. Strube , M. Sumihama , T. Sumiyoshi , M. Takizawa , U. Tamponi , K. Tanida , F. Tenchini , M. Uchida , T. Uglov , Y. Unno , S. Uno , P. Urquijo , Y. Usov , S. E. Vahsen , C. Van Hulse , G. Varner , K. E. Varvell , E. Waheed , B. Wang , C. H. Wang , M. -Z. Wang , P. Wang , Y. Watanabe , E. Widmann , E. Won , H. Yamamoto , Y. Yamashita , H. Ye , C. Z. Yuan , Y. Yusa , S. Zakharov , Z. P. Zhang , V. Zhilich , V. Zhukova , V. Zhulanov , A. Zupanc

CP violation in $B\to J/\psi K^*$ decays is studied using an angular analysis in a data sample of 253 fb$^{-1}$ recorded with the Belle detector at the KEKB $e^+e^-$ collider. The flavor separated measurements of the decay amplitudes…

High Energy Physics - Experiment · Physics 2019-08-14 R. Itoh , Y. Onuki

We present preliminary measurements of the CP asymmetries and branching fractions for B -> pi pi and B -> K pi decays. A total of 347 million BBbar events collected by the BABAR detector at the PEP-II asymmetric-energy e+e- collider at SLAC…

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

We present updated measurements of the CP-violating parameters S_pipi and C_pipi in B0 -> pi+pi- decays. Using a sample of 227 million Y(4S) -> BBbar decays collected with the BaBar detector at the PEP-II asymmetric-energy e+e- collider at…

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

We present a measurement of CP-violation parameters in the b->sq q penguin transitions (q=s,u,d) based on a 78/fb data sample collected at the Y(4S) resonance with the Belle detector at the KEKB energy-asymmetric e+e- collider. One neutral…

High Energy Physics - Experiment · Physics 2010-04-06 K. Abe

We present a measurement of the time-dependent CP asymmetry for the neutral B-meson decay B0 --> Phi K0. We use a sample of approximately 114 million B-meson pairs taken at the Upsilon(4S) resonance with the BaBar detector at the PEP-II…

High Energy Physics - Experiment · Physics 2016-08-31 B. Aubert , BABAR Collaboration

We report the recent measurements of $B^0\to J/\psi\pi^0$ and other CP violation modes based on the data collected by the Belle experiment at the KEKB collider. The CP asymmetry parameters for the decay $B^0\to J/\psi\pi^0$ have previously…

High Energy Physics - Experiment · Physics 2018-11-27 Bilas Pal

We present a measurement of the time-dependent CP asymmetry for the neutral B-meson decay into the CP = +1 final state Ks pi0 pi0, with Ks -> pi+ pi-. We use a sample of approximately 227 million B-meson pairs recorded at the Upsilon(4S)…

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

We report measurements of the branching fractions and direct CP asymmetries (A_{CP}) for B->K pi, pi pi and KK decays (but not pi^0 pi^0) based on the final data sample of 772x10^6 B B-bar pairs collected at the Upsilon(4S) resonance with…

High Energy Physics - Experiment · Physics 2013-05-03 Y. -T. Duh , T. -Y. Wu , P. Chang , G. B. Mohanty , Y. Unno , I. Adachi , H. Aihara , D. M. Asner , V. Aulchenko , T. Aushev , T. Aziz , A. M. Bakich , B. Bhuyan , M. Bischofberger , A. Bondar , G. Bonvicini , A. Bozek , M. Bracko , T. E. Browder , Y. Chao , V. Chekelian , A. Chen , P. Chen , B. G. Cheon , I. -S. Cho , K. Cho , V. Chobanova , Y. Choi , Z. Dolezal , A. Drutskoy , D. Dutta , S. Eidelman , H. Farhat , J. E. Fast , A. Frey , V. Gaur , R. Gillard , Y. M. Goh , B. Golob , J. Haba , K. Hayasaka , H. Hayashii , Y. Horii , Y. Hoshi , W. -S. Hou , Y. B. Hsiung , H. J. Hyun , T. Iijima , A. Ishikawa , T. Julius , J. H. Kang , P. Kapusta , T. Kawasaki , H. J. Kim , H. O. Kim , J. H. Kim , M. J. Kim , Y. J. Kim , K. Kinoshita , B. R. Ko , P. Kodys , S. Korpar , P. Krizan , P. Krokovny , T. Kuhr , R. Kumar , T. Kumita , A. Kuzmin , Y. -J. Kwon , S. -H. Lee , Y. Li , J. Libby , C. Liu , Y. Liu , K. Miyabayashi , H. Miyata , R. Mizuk , T. Mori , N. Muramatsu , E. Nakano , M. Nakao , C. Ng , S. Nishida , K. Nishimura , O. Nitoh , S. Ogawa , T. Ohshima , S. Okuno , G. Pakhlova , H. Park , H. K. Park , T. K. Pedlar , R. Pestotnik , M. Petric , L. E. Piilonen , M. Prim , M. Ritter , M. Rohrken , S. Ryu , H. Sahoo , Y. Sakai , S. Sandilya , D. Santel , Y. Sato , O. Schneider , C. Schwanda , K. Senyo , M. E. Sevior , M. Shapkin , V. Shebalin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , B. Shwartz , A. Sibidanov , F. Simon , P. Smerkol , Y. -S. Sohn , A. Sokolov , E. Solovieva , M. Staric , M. Sumihama , T. Sumiyoshi , G. Tatishvili , Y. Teramoto , K. Trabelsi , M. Uchida , S. Uehara , S. Uno , P. Vanhoefer , G. Varner , A. Vinokurova , C. H. Wang , M. -Z. Wang , M. Watanabe , K. M. Williams , E. Won , B. D. Yabsley , Y. Yamashita , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc

We measure the branching fraction and $CP$ violation asymmetry in the decay $B^{0}\to \pi^{0}\pi^{0}$, using a data sample of $752\times 10^{6}$ $B\bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB…

High Energy Physics - Experiment · Physics 2017-12-13 The Belle Collaboration , T. Julius , M. E. Sevior , G. B. Mohanty , I. Adachi , H. Aihara , S. Al Said , D. M. Asner , V. Aulchenko , T. Aushev , R. Ayad , V. Babu , I. Badhrees , A. M. Bakich , V. Bansal , E. Barberio , M. Barrett , M. Berger , V. Bhardwaj , B. Bhuyan , J. Biswal , T. Bloomfield , A. Bobrov , A. Bondar , G. Bonvicini , A. Bozek , M. Bračko , T. E. Browder , D. Červenkov , M. -C. Chang , Y. Chao , V. Chekelian , A. Chen , B. G. Cheon , K. Chilikin , K. Cho , Y. Choi , D. Cinabro , N. Dash , S. Di Carlo , Z. Doležal , D. Dossett , Z. Drásal , D. Dutta , S. Eidelman , H. Farhat , J. E. Fast , T. Ferber , B. G. Fulsom , V. Gaur , N. Gabyshev , A. Garmash , R. Gillard , P. Goldenzweig , J. Haba , T. Hara , K. Hayasaka , H. Hayashii , W. -S. Hou , C. -L. Hsu , T. Iijima , K. Inami , A. Ishikawa , R. Itoh , Y. Iwasaki , W. W. Jacobs , I. Jaegle , Y. Jin , D. Joffe , K. K. Joo , J. Kahn , G. Karyan , P. Katrenko , T. Kawasaki , C. Kiesling , 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 , D. Kotchetkov , P. Križan , P. Krokovny , T. Kuhr , R. Kulasiri , A. Kuzmin , Y. -J. Kwon , J. S. Lange , I. S. Lee , C. H. Li , L. Li , Y. Li , L. Li Gioi , J. Libby , D. Liventsev , T. Luo , J. MacNaughton , M. Masuda , T. Matsuda , M. Merola , K. Miyabayashi , H. Miyata , R. Mizuk , H. K. Moon , T. Mori , R. Mussa , E. Nakano , M. Nakao , T. Nanut , K. J. Nath , Z. Natkaniec , M. Nayak , N. K. Nisar , S. Nishida , S. Ogawa , H. Ono , P. Pakhlov , G. Pakhlova , B. Pal , S. Pardi , C. -S. Park , H. Park , L. Pesántez , R. Pestotnik , L. E. Piilonen , C. Pulvermacher , M. Ritter , H. Sahoo , Y. Sakai , M. Salehi , S. Sandilya , L. Santelj , T. Sanuki , Y. Sato , V. Savinov , O. Schneider , G. Schnell , C. Schwanda , A. J. Schwartz , Y. Seino , K. Senyo , V. Shebalin , T. -A. Shibata , J. -G. Shiu , B. Shwartz , A. Sokolov , E. Solovieva , M. Starič , T. Sumiyoshi , U. Tamponi , K. Tanida , F. Tenchini , K. Trabelsi , M. Uchida , S. Uehara , T. Uglov , Y. Unno , S. Uno , P. Urquijo , Y. Usov , C. Van Hulse , G. Varner , K. E. Varvell , A. Vossen , E. Waheed , C. H. Wang , M. -Z. Wang , P. Wang , M. Watanabe , Y. Watanabe , E. Widmann , K. M. Williams , E. Won , Y. Yamashita , H. Ye , C. Z. Yuan , Y. Yusa , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc