Related papers: Recent CP violation results from Belle

CP violation in the B meson system: recent experimental results

Recent experimental results on CP violation in the study of B meson decays are reviewed. The emphasis is put on the recent measurements of the CP parameter sin2beta by the BABAR and BELLE experiments at asymmetric B factories, which…

High Energy Physics - Experiment · Physics 2007-05-23 Gautier Hamel de Monchenault

Measurements of the CKM angle \phi_1(\beta) at the B Factories

In this proceeding, we report the recent measurements of the CKM angle \phi_1(\beta) using large data samples collected by the Belle and BaBar experiments. The experiments have collected more than 1 billion B anti-B pairs of data sample at…

High Energy Physics - Experiment · Physics 2019-08-14 H. Sahoo

Measurements of time-dependent CP violation in $B^0 \to \omega K_S^0$, $f_0(980) K_S^0$, $K_S^0 \pi^0$ and $K^+ K^- K_S^0$ decays

We present measurements of time-dependent CP asymmetries in $B^0 \to \omega K_S^0$, $f_0 (980) K_S^0$, $K_S^0 \pi^0$ and $K^+ K^- K_S^0$ based on a sample of 535 $\times 10^6$ $B\bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance with…

High Energy Physics - Experiment · Physics 2012-08-27 Belle Collaboration

Charge-Parity violation in charm decays at Belle

Using the full data sample collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider, we present CP violation in charm decays. The $D^0-\bar{D}^0$ mixing parameter $y_{CP}$ and indirect CP violation parameter…

High Energy Physics - Experiment · Physics 2019-08-13 B. R. Ko

Time-Dependent CP-Violating Asymmetries in b -> s qbar q Transitions

We present new measurements of CP-violation parameters in B0 -> phiK0, K+K-Ks, f0(980)Ks, eta'Ks, omegaKs and Kspi0 decays based on a sample of 275 x 10^6 BBbar pairs collected at the Upsilon(4S) resonance with the Belle detector at the…

High Energy Physics - Experiment · Physics 2008-11-26 The Belle Collaboration , K. -F. Chen

Evidence for Direct CP Violation in $B^\pm \to \eta h^\pm$ and Observation of $B^0 \to \eta K^0$

We report measurements of the branching fractions and CP asymmetries for B^+- -> eta h^+- (h = K or pi) and the observation of the decay B^0 -> eta K^0 from the final data sample of 772x10^6 BBbar pairs collected with the Belle detector at…

High Energy Physics - Experiment · Physics 2019-08-13 C. -T. Hoi , P. Chang

Measurements of the CKM angle phi_1/beta from Belle and BaBar

We report recent measurements of the CKM angle phi_1/beta using large data samples collected by the Belle and BaBar experiments at the e^+ e^- asymmetric-energy colliders.

High Energy Physics - Experiment · Physics 2008-07-04 K. Vervink

Time-Dependent CP Asymmetries in B0 -> Ks pi0 gamma transitions

We report measurements of CP violation parameters in B0->Ks pi0 gamma transitions based on a data sample of 535x10^6 BB pairs collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. One neutral B meson is fully…

High Energy Physics - Experiment · Physics 2008-11-26 The Belle Collaboration , Y. Ushiroda , K. Sumisawa

First observation of CP violation and improved measurement of the branching fraction and polarization of B0 -> D*+ D*- decays

We report the measurement of the branching fraction, the polarization, and the parameters of the time-dependent CP violation in B0 -> D*+ D*- decays using a data sample of 772 million BB pairs, collected at the Y(4S) resonance with the…

High Energy Physics - Experiment · Physics 2012-10-24 Belle Collaboration , B. Kronenbitter , I. Adachi , H. Aihara , K. Arinstein , D. M. Asner , T. Aushev , T. Aziz , A. M. Bakich , M. Barrett , K. Belous , V. Bhardwaj , B. Bhuyan , A. Bondar , A. Bozek , M. Bračko , O. Brovchenko , T. E. Browder , V. Chekelian , A. Chen , P. Chen , B. G. Cheon , R. Chistov , I. -S. Cho , K. Cho , Y. Choi , J. Dalseno , Z. Doležal , Z. Drásal , A. Drutskoy , S. Eidelman , S. Esen , J. E. Fast , M. Feindt , V. Gaur , N. Gabyshev , Y. M. Goh , J. Haba , H. Hayashii , Y. Horii , Y. Hoshi , W. -S. Hou , Y. B. Hsiung , T. Iijima , K. Inami , A. Ishikawa , R. Itoh , M. Iwabuchi , Y. Iwasaki , T. Julius , J. H. Kang , P. Kapusta , T. Kawasaki , C. Kiesling , H. J. Kim , H. O. Kim , J. B. Kim , J. H. Kim , K. T. Kim , M. J. Kim , Y. J. Kim , K. Kinoshita , B. R. Ko , S. Koblitz , P. Kodyš , S. Korpar , R. T. Kouzes , P. Križan , P. Krokovny , T. Kuhr , R. Kumar , T. Kumita , Y. -J. Kwon , S. -H. Lee , J. Li , Y. Li , J. Libby , Y. Liu , Z. Q. Liu , D. Liventsev , R. Louvot , S. McOnie , K. Miyabayashi , H. Miyata , R. Mizuk , G. B. Mohanty , D. Mohapatra , A. Moll , E. Nakano , M. Nakao , S. Neubauer , C. Ng , S. Nishida , K. Nishimura , O. Nitoh , T. Ohshima , S. Okuno , S. L. Olsen , Y. Onuki , H. Ozaki , P. Pakhlov , G. Pakhlova , C. W. Park , H. Park , H. K. Park , R. Pestotnik , M. Petrič , L. E. Piilonen , M. Prim , M. Ritter , M. Röhrken , S. Ryu , H. Sahoo , Y. Sakai , S. Sandilya , L. Santelj , T. Sanuki , O. Schneider , C. Schwanda , A. J. Schwartz , K. Senyo , M. E. Sevior , M. Shapkin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , A. Sibidanov , F. Simon , P. Smerkol , Y. -S. Sohn , A. Sokolov , E. Solovieva , S. Stanič , M. Starič , M. Sumihama , K. Sumisawa , T. Sumiyoshi , G. Tatishvili , Y. Teramoto , K. Trabelsi , T. Tsuboyama , M. Uchida , S. Uehara , T. Uglov , Y. Unno , S. Uno , Y. Usov , P. Vanhoefer , G. Varner , K. E. Varvell , V. Vorobyev , C. H. Wang , P. Wang , Y. Watanabe , K. M. Williams , E. Won , B. D. Yabsley , J. Yamaoka , Y. Yamashita , D. Zander , V. Zhilich , V. Zhulanov , A. Zupanc

Observation of Mixing-induced CP Violation in the Neutral B Meson System

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

CP violation in $D^0 \rightarrow K_S^0 K_S^0$ decay at Belle

We report the preliminary measurement of the $CP$ asymmetry of the $D^0 \rightarrow K^0_S K^0_S$ decay, which is consistent with no $CP$ violation and improves the uncertainty with respect to the previous measurement of this quantity by…

High Energy Physics - Experiment · Physics 2017-11-29 N. Dash

Time-Dependent CP Asymmetries in B0 -> Ks Pi0 gamma transition

We present measurements of CP-violation parameters in b -> s gamma transitions based on a sample of 386x10^6 BB pairs collected at the Y(4S) resonance with the Belle detector at the KEKB energy-asymmetric e+e- collider. One neutral B meson…

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

Measurement of CP-Violating Parameters in $B\to \eta^\prime K$ Decays

We present measurements of CP-violating parameters in $B^0(\bar{B}{}^0) \to \eta^\prime K_S^0$ and $B^{\pm} \to \eta' K^{\pm}$ decays based on a 41.8 fb$^{-1}$ data sample collected at the $\Upsilon(4S)$ resonance with the Belle detector at…

High Energy Physics - Experiment · Physics 2010-03-26 K. F. Chen , K. Hara

Search for CP Violation in Charm at $e^+e^-$ colliders

In this proceeding, I discuss results from the BaBar and Belle collaborations for searches of direct CP violation in the singly Cabibbo-suppressed decay $\D^\pm\to K^+K^-\pi^\pm$ from $e^+e^-$ annihilation data collected at a center-of-mass…

High Energy Physics - Experiment · Physics 2019-08-14 Ryan Mackenzie White

Study of time-dependent CP-violation in $B^0 \to J/\psi ~\pi^0$ decay

We report a measurement of CP asymmetry parameters in the $b \to c\bar{c}d$-transition-induced decays $B^0(\bar{B^0}) \to J/\psi pi^0$. The analysis is based on a 140 fb$^{-1}$ data sample accumulated at the $\Upsilon(4S)$ resonance by the…

High Energy Physics - Experiment · Physics 2009-09-29 K. Abe , the Belle Collaboration

Search for CP violation in D^0 -> pi^0 pi^0 decays

We search for CP violation in neutral charm meson decays using a data sample with an integrated luminosity of 966 fb^-1 collected with the Belle detector at the KEKB e+e- asymmetric-energy collider. The asymmetry obtained in the rate of D^0…

High Energy Physics - Experiment · Physics 2014-07-16 N. K. Nisar , K. Trabelsi , G. B. Mohanty , T. Aziz , A. Abdesselam , I. Adachi , H. Aihara , K. Arinstein , D. M. Asner , V. Aulchenko , T. Aushev , R. Ayad , S. Bahinipati , A. M. Bakich , A. Bala , V. Bansal , P. Behera , K. Belous , V. Bhardwaj , A. Bobrov , G. Bonvicini , A. Bozek , M. Bračko , T. E. Browder , D. Červenkov , B. G. Cheon , K. Chilikin , K. Cho , V. Chobanova , Y. Choi , D. Cinabro , J. Dalseno , M. Danilov , Z. Doležal , Z. Drásal , A. Drutskoy , D. Dutta , K. Dutta , S. Eidelman , D. Epifanov , H. Farhat , J. E. Fast , T. Ferber , V. Gaur , N. Gabyshev , S. Ganguly , A. Garmash , Y. M. Goh , B. Golob , T. Hara , H. Hayashii , X. H. He , Y. Hoshi , W. -S. Hou , T. Iijima , A. Ishikawa , R. Itoh , Y. Iwasaki , T. Iwashita , J. H. Kang , T. Kawasaki , C. Kiesling , D. Y. Kim , J. B. Kim , J. H. Kim , M. J. Kim , Y. J. Kim , K. Kinoshita , B. R. Ko , P. Kodyš , S. Korpar , P. Križan , P. Krokovny , T. Kuhr , R. Kumar , A. Kuzmin , Y. -J. Kwon , J. S. Lange , S. -H. Lee , L. Li Gioi , J. Libby , D. Liventsev , P. Lukin , B. Macek , D. Matvienko , K. Miyabayashi , H. Miyata , R. Mizuk , A. Moll , R. Mussa , E. Nakano , M. Nakao , M. Nayak , E. Nedelkovska , O. Nitoh , S. Ogawa , S. Okuno , P. Pakhlov , G. Pakhlova , H. Park , H. K. Park , T. K. Pedlar , T. Peng , R. Pestotnik , M. Petrič , L. E. Piilonen , E. Ribežl , M. Ritter , M. Röhrken , A. Rostomyan , Y. Sakai , S. Sandilya , L. Santelj , T. Sanuki , Y. Sato , O. Schneider , G. Schnell , C. Schwanda , A. J. Schwartz , D. Semmler , K. Senyo , O. Seon , M. E. Sevior , M. Shapkin , V. Shebalin , T. -A. Shibata , J. -G. Shiu , B. Shwartz , F. Simon , Y. -S. Sohn , A. Sokolov , E. Solovieva , S. Stanič , M. Starič , M. Steder , J. Stypula , T. Sumiyoshi , G. Tatishvili , Y. Teramoto , M. Uchida , T. Uglov , S. Uno , P. Urquijo , Y. Usov , S. E. Vahsen , C. Van Hulse , P. Vanhoefer , G. Varner , K. E. Varvell , M. N. Wagner , C. H. Wang , M. -Z. Wang , P. Wang , Y. Watanabe , K. M. Williams , E. Won , J. Yamaoka , Y. Yamashita , S. Yashchenko , Y. Yook , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc

Measurement of CP asymmetries in $B^0 \to K^0\pi^0$ decays

We report measurements of CP violation parameters in $B^0 \to K^0 \pi^0$ decays based on a data sample of $657 \times 10^6 B\bar{B}$ pairs collected with the Belle detector at the KEKB $e^+ e^-$ asymmetric-energy collider. We use $B^0 \to…

High Energy Physics - Experiment · Physics 2019-08-13 M. Fujikawa , Y. Yusa

Observation of Large CP Violation in the Neutral B Meson System

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

Search for $C\!P$ violation using $T$-odd correlations in $D_{(s)}^{+}\to K^{+} K^{-}\pi^{+}\pi^{0}$, $D_{(s)}^{+}\to K^{+} \pi^{-}\pi^{+}\pi^{0}$, and $D^{+}\to K^{-}\pi^{+}\pi^{+}\pi^{0}$ decays

We search for $C\!P$ violation using $T$-odd correlations in five $D_{(s)}^{+}$ and $D_{(s)}^{-}$ four-body decays. Our analysis is based on 980 $\rm fb^{-1}$ of data collected by the Belle detector at the KEKB energy-asymmetric $e^+e^-$…

High Energy Physics - Experiment · Physics 2023-05-23 Belle Collaboration , L. K. Li , A. J. Schwartz , E. Won , K. Kinoshita , I. Adachi , H. Aihara , S. Al Said , D. M. Asner , V. Aulchenko , T. Aushev , V. Babu , Sw. Banerjee , P. Behera , K. Belous , J. Bennett , M. Bessner , T. Bilka , D. Biswas , A. Bobrov , D. Bodrov , G. Bonvicini , J. Borah , M. Bračko , P. Branchini , A. Budano , D. Červenkov , M. -C. Chang , B. G. Cheon , H. E. Cho , K. Cho , S. -K. Choi , Y. Choi , S. Choudhury , D. Cinabro , J. Cochran , S. Das , G. De Nardo , G. De Pietro , R. Dhamija , F. Di Capua , J. Dingfelder , Z. Doležal , T. V. Dong , S. Dubey , D. Epifanov , A. Frey , B. G. Fulsom , V. Gaur , A. Giri , P. Goldenzweig , G. Gong , E. Graziani , D. Greenwald , T. Gu , Y. Guan , K. Gudkova , C. Hadjivasiliou , T. Hara , K. Hayasaka , H. Hayashii , D. Herrmann , W. -S. Hou , C. -L. Hsu , N. Ipsita , A. Ishikawa , R. Itoh , M. Iwasaki , W. W. Jacobs , E. -J. Jang , Q. P. Ji , S. Jia , Y. Jin , K. K. Joo , J. Kahn , A. B. Kaliyar , C. Kiesling , C. H. Kim , D. Y. Kim , K. -H. Kim , Y. J. Kim , Y. -K. Kim , H. Kindo , P. Kodyš , A. Korobov , S. Korpar , E. Kovalenko , P. Križan , P. Krokovny , M. Kumar , R. Kumar , K. Kumara , Y. -J. Kwon , Y. T. Lai , T. Lam , S. C. Lee , Y. Li , J. Libby , K. Lieret , Y. -R. Lin , D. Liventsev , Y. Ma , M. Masuda , T. Matsuda , D. Matvienko , S. K. Maurya , F. Meier , M. Merola , F. Metzner , R. Mizuk , G. B. Mohanty , M. Nakao , D. Narwal , Z. Natkaniec , A. Natochii , L. Nayak , N. K. Nisar , S. Nishida , S. Ogawa , H. Ono , P. Oskin , G. Pakhlova , S. Pardi , H. Park , J. Park , S. -H. Park , A. Passeri , S. Patra , S. Paul , R. Pestotnik , L. E. Piilonen , T. Podobnik , E. Prencipe , M. T. Prim , G. Russo , S. Sandilya , A. Sangal , L. Santelj , V. Savinov , G. Schnell , C. Schwanda , Y. Seino , M. E. Sevior , W. Shan , M. Shapkin , C. Sharma , J. -G. Shiu , B. Shwartz , E. Solovieva , M. Starič , Z. S. Stottler , M. Sumihama , M. Takizawa , K. Tanida , F. Tenchini , M. Uchida , T. Uglov , Y. Unno , K. Uno , S. Uno , G. Varner , K. E. Varvell , A. Vinokurova , D. Wang , E. Wang , X. L. Wang , S. Watanuki , O. Werbycka , X. Xu , B. D. Yabsley , W. Yan , S. B. Yang , J. H. Yin , Y. Yook , Z. P. Zhang , V. Zhilich , V. Zhukova

Measurement of Vub at Belle

Results on two inclusive Vub measurements at Belle are presented. We also present a new measurement of the branching fraction for Ds->phi pi. A data sample of 78.1fb^-1 accumulated using the Belle detector at the KEKB asymmetric e^+e^-…

High Energy Physics - Experiment · Physics 2007-05-23 A. Limosani