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Related papers: Results on CP Violation from Belle

200 papers

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 a measurement of time-dependent $CP$ violation in $B^0 \to K^0_S \pi^0 \pi^0$ decays using a data sample of $772 \times 10^6$ $B\bar{B}$ pairs collected by the Belle experiment runnin g at the $\Upsilon (4S)$ resonance at the KEKB…

High Energy Physics - Experiment · Physics 2019-01-28 Belle Collaboration , Y. Yusa , H. Aihara , S. Al Said , D. M. Asner , H. Atmacan , V. Aulchenko , T. Aushev , R. Ayad , V. Babu , I. Badhrees , S. Bahinipati , A. M. Bakich , V. Bansal , P. Behera , V. Bhardwaj , B. Bhuyan , J. Biswal , A. Bozek , M. Bračko , T. E. Browder , L. Cao , D. Červenkov , V. Chekelian , A. Chen , B. G. Cheon , K. Chilikin , S. -K. Choi , Y. Choi , D. Cinabro , S. Cunliffe , N. Dash , S. Di Carlo , T. V. Dong , Z. Drásal , S. Eidelman , D. Epifanov , J. E. Fast , B. G. Fulsom , R. Garg , V. Gaur , A. Giri , P. Goldenzweig , B. Golob , Y. Guan , J. Haba , K. Hayasaka , H. Hayashii , S. Hirose , K. Inami , G. Inguglia , A. Ishikawa , M. Iwasaki , Y. Iwasaki , W. W. Jacobs , S. Jia , Y. Jin , K. K. Joo , K. H. Kang , T. Kawasaki , D. Y. Kim , J. B. Kim , K. T. Kim , S. H. Kim , K. Kinoshita , P. Kodyš , S. Korpar , D. Kotchetkov , P. Križan , R. Kroeger , T. Kuhr , R. Kumar , Y. -J. Kwon , J. S. Lange , I. S. Lee , S. C. Lee , L. K. Li , Y. B. Li , L. Li Gioi , J. Libby , D. Liventsev , M. Lubej , T. Luo , M. Masuda , T. Matsuda , M. Merola , K. Miyabayashi , H. Miyata , R. Mizuk , G. B. Mohanty , H. K. Moon , E. Nakano , T. Nanut , K. J. Nath , Z. Natkaniec , N. K. Nisar , S. Nishida , K. Nishimura , K. Ogawa , S. Ogawa , H. Ono , G. Pakhlova , B. Pal , S. Pardi , H. Park , S. Paul , T. K. Pedlar , R. Pestotnik , L. E. Piilonen , V. Popov , E. Prencipe , A. Rostomyan , G. Russo , Y. Sakai , S. Sandilya , T. Sanuki , V. Savinov , O. Schneider , G. Schnell , C. Schwanda , A. J. Schwartz , Y. Seino , K. Senyo , O. Seon , M. E. Sevior , C. P. Shen , T. -A. Shibata , J. -G. Shiu , M. Starič , M. Sumihama , T. Sumiyoshi , M. Takizawa , U. Tamponi , K. Tanida , F. Tenchini , M. Uchida , T. Uglov , Y. Unno , S. Uno , Y. Ushiroda , Y. Usov , C. Van Hulse , R. Van Tonder , G. Varner , K. E. Varvell , V. Vorobyev , A. Vossen , E. Waheed , B. Wang , C. H. Wang , M. -Z. Wang , P. Wang , E. Won , H. Ye , J. H. Yin , Z. P. Zhang , V. Zhilich , V. Zhulanov

We present an improved measurement of the standard model CP violation parameter sin2phi1 (also known as sin2beta) based on a sample of 45x10^6 BBbar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB…

High Energy Physics - Experiment · Physics 2019-08-14 T. Higuchi

In this proceeding, we report the recent measurements of time-dependent CP violation in B meson decays from the Belle Collaboration. The Belle experiment stopped operation in June 2010 and collected nearly 772 x 10^6 B B-bar pairs at the…

High Energy Physics - Experiment · Physics 2019-08-13 H. Sahoo

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 new measurements of CP-violation parameters in B0 --> phi K0, K+ K- Ks, f0(980) Ks, eta' Ks, omega Ks, Ks pi0, and K*0 gamma (K*0 --> Ks pi0) decays based on a sample of 275 x 10^6 BBbar pairs collected at the Upsilon(4S)…

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

We report on a search for CP violation in tau -> K^0_S pi nu_tau decays using a data sample of 699 fb^{-1} collected in the Belle experiment at the KEKB electron-positron asymmetric-energy collider. The CP asymmetry is measured in four bins…

High Energy Physics - Experiment · Physics 2015-03-17 M. Bischofberger , H. Hayashii , K. Adamczyk , H. Aihara , V. Aulchenko , A. M. Bakich , V. Balagura , E. Barberio , K. Belous , A. Bozek , M. Bracko , T. E. Browder , P. Chen , B. G. Cheon , C. -C. Chiang , I. -S. Cho , K. Cho , Y. Choi , M. Danilov , Z. Dolezal , A. Drutskoy , S. Eidelman , D. Epifanov , B. Golob , H. Ha , J. Haba , K. Hayasaka , Y. Horii , Y. Hoshi , W. -S. Hou , Y. B. Hsiung , H. J. Hyun , K. Inami , A. Ishikawa , R. Itoh , M. Iwabuchi , Y. Iwasaki , T. Julius , J. H. Kang , H. Kawai , T. Kawasaki , C. Kiesling , H. O. Kim , M. J. Kim , Y. J. Kim , K. Kinoshita , B. R. Ko , P. Kodys , P. Krizan , Y. -J. Kwon , S. -H. Kyeong , J. S. Lange , M. J. Lee , S. -H. Lee , J. Li , Y. Li , C. Liu , R. Louvot , J. MacNaughton , S. McOnie , K. Miyabayashi , H. Miyata , Y. Miyazaki , R. Mizuk , G. B. Mohanty , A. Moll , T. Mori , Y. Nagasaka , E. Nakano , M. Nakao , H. Nakazawa , S. Nishida , K. Nishimura , O. Nitoh , T. Ohshima , S. Okuno , G. Pakhlova , H. Park , H. K. Park , M. Petric , L. E. Piilonen , M. Röhrken , S. Ryu , H. Sahoo , Y. Sakai , O. Schneider , C. Schwanda , K. Senyo , M. Shapkin , J. -G. Shiu , B. Shwartz , F. Simon , P. Smerkol , Y. -S. Sohn , S. Stanic , M. Staric , T. Sumiyoshi , Y. Teramoto , K. Trabelsi , S. Uehara , T. Uglov , S. Uno , G. Varner , A. Vinokurova , A. Vossen , C. H. Wang , P. Wang , M. Watanabe , Y. Watanabe , E. Won , H. Yamamoto , Y. Yamashita , C. Z. Yuan , P. Zhou , V. Zhulanov , T. Zivko

We present improved measurements of CP-violation parameters in B0->phiK0, eta'K0, KsKsKs decays based on a sample of 535x10^6 BBbar pairs collected at the Y(4S) resonance with the Belle detector at the KEKB energy-asymmetric e+e- collider.…

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

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 present new measurements of CP-violation parameters in B0->phi/Ks, K+K-Ks, f0(980)Ks, eta'Ks, omega/Ks, Pi0/Ks, and K*0(KsPi0)/gamma decays based on a sample of 275x10^6 BBbar pairs collected at the Y(4S) resonance with the Belle…

High Energy Physics - Experiment · Physics 2019-08-14 Alexei Garmash

We present a summary of measurements sensitive to the CKM angles \phi_1 and \phi_2, performed by the Belle experiment using the final data sample of 772 \times 10^{6} $B\bar{B}$ pairs at the \Upsilon(4S) resonance produced at the KEK…

High Energy Physics - Experiment · Physics 2013-01-23 P. Vanhoefer

We observe evidence for CP violation in the decay $D^+\rightarrow K^0_S\pi^+$ using a data sample with an integrated luminosity of 977 fb$^{-1}$ collected by the Belle detector at the KEKB $e^+e^-$ asymmetric-energy collider. The CP…

High Energy Physics - Experiment · Physics 2019-08-14 B. R. Ko , E. Won , I. Adachi , H. Aihara , D. M. Asner , V. Aulchenko , T. Aushev , T. Aziz , A. M. Bakich , K. Belous , V. Bhardwaj , B. Bhuyan , M. Bischofberger , A. Bondar , G. Bonvicini , A. Bozek , M. Bra\v , T. E. Browder , M. -C. Chang , A. Chen , P. Chen , B. G. Cheon , K. Chilikin , I. -S. Cho , K. Cho , Y. Choi , Z. Dole\v , Z. Drásal , S. Eidelman , J. E. Fast , V. Gaur , N. Gabyshev , Y. M. Goh , B. Golob , J. Haba , K. Hayasaka , H. Hayashii , Y. Horii , Y. Hoshi , W. -S. Hou , H. J. Hyun , T. Iijima , A. Ishikawa , R. Itoh , M. Iwabuchi , Y. Iwasaki , T. Iwashita , T. Julius , J. H. Kang , T. Kawasaki , C. Kiesling , H. O. Kim , J. B. Kim , K. T. Kim , M. J. Kim , Y. J. Kim , K. Kinoshita , S. Koblitz , P. Kody\v , S. Korpar , P. Kri\v , P. Krokovny , T. Kuhr , A. Kuzmin , Y. -J. Kwon , J. S. Lange , S. -H. Lee , J. Li , Y. Li , J. Libby , C. -L. Lim , C. Liu , Y. Liu , Z. Q. Liu , D. Liventsev , R. Louvot , Y. Miyazaki , R. Mizuk , G. B. Mohanty , A. Moll , T. Mori , N. Muramatsu , Y. Nagasaka , E. Nakano , M. Nakao , H. Nakazawa , Z. Natkaniec , S. Nishida , K. Nishimura , O. Nitoh , S. Ogawa , T. Ohshima , S. Okuno , S. L. Olsen , Y. Onuki , W. Ostrowicz , P. Pakhlov , G. Pakhlova , C. W. Park , H. K. Park , K. S. Park , T. K. Pedlar , R. Pestotnik , M. Petri\v , L. E. Piilonen , A. Poluektov , M. Ritter , M. Röhrken , S. Ryu , H. Sahoo , K. Sakai , Y. Sakai , T. Sanuki , Y. Sato , O. Schneider , C. Schwanda , A. J. Schwartz , R. Seidl , K. Senyo , M. E. Sevior , M. Shapkin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , B. Shwartz , A. Sibidanov , F. Simon , P. Smerkol , Y. -S. Sohn , A. Sokolov , E. Solovieva , S. Stani\v , M. Stari\v , T. Sumiyoshi , S. Tanaka , G. Tatishvili , Y. Teramoto , K. Trabelsi , T. Tsuboyama , M. Uchida , S. Uehara , Y. Unno , S. Uno , G. Varner , K. E. Varvell , A. Vinokurova , V. Vorobyev , C. H. Wang , P. Wang , X. L. Wang , M. Watanabe , Y. Watanabe , H. Yamamoto , Y. Yamashita , C. Z. Yuan , C. C. Zhang , Z. P. Zhang , V. Zhulanov , A. Zupanc

Using the full data sample collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider, we present three recent measurements of time-dependent CP violation in $B$ decays, and a measurement of branching fraction of the…

High Energy Physics - Experiment · Physics 2013-12-19 Luka Santelj

We present a measurement of the CP violation parameters in B0 ->Kspi0pi0 and B0 -> KsKs decays using a data sample containing 657x10^6 BBbar pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider operating at…

High Energy Physics - Experiment · Physics 2007-08-15 The Belle Collaboration , K. Abe

We report updates on time-dependent $CP$-violation observables at Belle II. The benchmark measurements of the $B^0$ lifetime $\tau_{B^0}$ and mixing frequency $\Delta m_d$ using flavor specific hadronic decays and the determination of the…

High Energy Physics - Experiment · Physics 2023-05-17 Michele Veronesi

We report the first measurement of CP-violation parameters in B^0 -> K_S^0\rho^0\gamma decays based on 657 million B\bar B pairs collected with the Belle detector at the KEKB asymmetric-energy collider. We measure the time-dependent CP…

High Energy Physics - Experiment · Physics 2019-08-13 J. Li

Time dependent CP-violation phenomena are a powerful tool to precisely measure fundamental parameters of the Standard Model and search for New Physics. The Belle II experiment at the SuperKEKB energy-asymmetric $e^+e^-$ collider is a…

High Energy Physics - Experiment · Physics 2019-06-20 Stefano Lacaprara

We present a measurement of the time-dependent $CP$ violation parameters in $B^0\to\eta'K^0$ decays. The measurement is based on the full data sample containing $772\times 10^6$ $B\bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance…

High Energy Physics - Experiment · Physics 2014-11-12 Belle Collaboration , L. Šantelj , Y. Yusa , A. Abdesselam , I. Adachi , H. Aihara , S. Al Said , D. M. Asner , V. Aulchenko , T. Aushev , R. Ayad , S. Bahinipati , A. M. Bakich , V. Bansal , V. Bhardwaj , B. Bhuyan , A. Bondar , G. Bonvicini , A. Bozek , M. Bračko , T. E. Browder , D. Červenkov , V. Chekelian , A. Chen , B. G. Cheon , K. Chilikin , K. Cho , V. Chobanova , Y. Choi , D. Cinabro , J. Dalseno , M. Danilov , Z. Doležal , Z. Drásal , A. Drutskoy , S. Eidelman , H. Farhat , J. E. Fast , T. Ferber , O. Frost , V. Gaur , N. Gabyshev , S. Ganguly , A. Garmash , R. Gillard , R. Glattauer , Y. M. Goh , B. Golob , J. Haba , K. Hara , K. Hayasaka , H. Hayashii , X. H. He , T. Higuchi , W. -S. Hou , H. J. Hyun , K. Inami , A. Ishikawa , R. Itoh , Y. Iwasaki , I. Jaegle , K. K. Joo , H. Kakuno , E. Kato , T. Kawasaki , C. Kiesling , D. Y. Kim , H. J. Kim , J. B. Kim , J. H. Kim , K. T. Kim , M. J. Kim , Y. J. Kim , K. Kinoshita , B. R. Ko , S. Korpar , P. Križan , P. Krokovny , T. Kuhr , T. Kumita , A. Kuzmin , Y. -J. Kwon , J. Li , Y. Li , L. Li Gioi , J. Libby , D. Liventsev , D. Matvienko , K. Miyabayashi , H. Miyata , G. B. Mohanty , A. Moll , T. Mori , E. Nakano , M. Nakao , T. Nanut , Z. Natkaniec , E. Nedelkovska , N. K. Nisar , S. Nishida , S. Ogawa , S. Okuno , S. L. Olsen , P. Pakhlov , G. Pakhlova , H. Park , T. K. Pedlar , R. Pestotnik , M. Petrič , L. E. Piilonen , E. Ribežl , M. Ritter , A. Rostomyan , Y. Sakai , S. Sandilya , T. Sanuki , Y. Sato , V. Savinov , O. Schneider , G. Schnell , C. Schwanda , A. J. Schwartz , K. Senyo , M. E. Sevior , V. Shebalin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , F. Simon , Y. -S. Sohn , A. Sokolov , E. Solovieva , M. Starič , M. Steder , M. Sumihama , U. Tamponi , G. Tatishvili , Y. Teramoto , K. Trabelsi , M. Uchida , S. Uehara , T. Uglov , Y. Unno , S. Uno , P. Urquijo , S. E. Vahsen , C. Van Hulse , P. Vanhoefer , G. Varner , V. Vorobyev , A. Vossen , M. N. Wagner , C. H. Wang , M. -Z. Wang , P. Wang , X. L. Wang , Y. Watanabe , S. Wehle , K. M. Williams , E. Won , S. Yashchenko , Y. Yook , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc

We present a new measurement of the time-dependent CP-violating parameters in B0 --> pi+ pi- decays with 275 x 10^6 BB-bar pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider operating at the Upsilon(4S)…

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

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