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$CP$ violation and branching fraction measurements in $D$ decays are interesting topics as any difference with respect to the Standard Model prediction would be an indication of new physics. With the large data sample collected by the Belle…

High Energy Physics - Experiment · Physics 2018-02-14 K. Prasanth

We report an improved measurement of direct CP violation in the decay B0 --> K+pi-, and a search for CP violation in the decays B+ --> K+pi0 and B+ --> pi+pi0. The measured CP violating asymmetries are…

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

The Belle II experiment at the SuperKEKB electron-positron collider will provide a large sample of charm mesons in addition to its primary goal of B meson production. The large data sample and wide variety of accessible D meson decay modes…

High Energy Physics - Experiment · Physics 2019-08-13 K. Nishimura

In this proceeding, we discuss recent results on exclusive radiative B meson decays from the Belle Collaboration. These decays are sensitive to right-handed currents from New Physics. In particular, we measure time-dependent CP violation…

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

We report the analysis of time-dependent CP violation in neutral B meson system using a data sample corresponding to 140fb-1 collected by Belle detector and KEKB e+e- collider. One B meson decaying into CP eigenstate is fully reconstructed…

High Energy Physics - Experiment · Physics 2009-09-29 C. C. Wang

We report the first search for CP violating decays of the $\Upsilon(4S)$ using a data sample that contains 535 million $\Upsilon(4S)$ mesons with the Belle detector at the KEKB asymmetric-energy e^+ e^- collider. A partial reconstruction…

High Energy Physics - Experiment · Physics 2019-08-13 O. Tajima , M Hazumi

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 measure the time-dependent $C\!P$ violation parameters in $B^{0} \to K^{0}_{S}K^{0}_{S}K^{0}_{S}$ decays using $772 \times 10^6$ $B {\mkern 1.5mu\overline{\mkern-1.5mu B \mkern-0.1mu}\mkern 0.1mu}$ pairs collected at the $\Upsilon (4S)$…

High Energy Physics - Experiment · Physics 2021-02-17 Belle Collaboration , K. H. Kang , H. Park , T. Higuchi , K. Miyabayashi , K. Sumisawa , I. Adachi , J. K. Ahn , H. Aihara , S. Al Said , D. M. Asner , V. Aulchenko , T. Aushev , R. Ayad , V. Babu , S. Bahinipati , A. M. Bakich , P. Behera , C. Beleño , J. Bennett , V. Bhardwaj , T. Bilka , J. Biswal , G. Bonvicini , A. Bozek , M. Bračko , T. E. Browder , M. Campajola , L. Cao , D. Červenkov , M. -C. Chang , V. Chekelian , A. Chen , B. G. Cheon , K. Chilikin , K. Cho , S. -K. Choi , Y. Choi , D. Cinabro , S. Cunliffe , N. Dash , G. De Nardo , Z. Doležal , T. V. Dong , S. Eidelman , J. E. Fast , T. Ferber , B. G. Fulsom , R. Garg , V. Gaur , N. Gabyshev , A. Garmash , A. Giri , P. Goldenzweig , B. Golob , D. Greenwald , Y. Guan , O. Hartbrich , K. Hayasaka , H. Hayashii , M. Hernandez Villanueva , W. -S. Hou , C. -L. Hsu , K. Inami , G. Inguglia , A. Ishikawa , M. Iwasaki , Y. Iwasaki , W. W. Jacobs , E. -J. Jang , H. B. Jeon , S. Jia , Y. Jin , K. K. Joo , A. B. Kaliyar , G. Karyan , T. Kawasaki , H. Kichimi , C. Kiesling , C. H. Kim , D. Y. Kim , K. -H. Kim , S. H. Kim , Y. -K. Kim , K. Kinoshita , P. Kodyš , S. Korpar , D. Kotchetkov , P. Križan , R. Kroeger , P. Krokovny , R. Kulasiri , R. Kumar , A. Kuzmin , Y. -J. Kwon , J. S. Lange , I. S. Lee , S. C. Lee , J. Li , L. K. Li , Y. B. Li , L. Li Gioi , J. Libby , K. Lieret , D. Liventsev , J. MacNaughton , C. MacQueen , M. Masuda , T. Matsuda , D. Matvienko , M. Merola , H. Miyata , R. Mizuk , G. B. Mohanty , T. J. Moon , T. Mori , T. Morii , M. Mrvar , R. Mussa , M. Nakao , Z. Natkaniec , M. Nayak , N. K. Nisar , S. Nishida , K. Nishimura , K. Ogawa , S. Ogawa , H. Ono , Y. Onuki , P. Oskin , P. Pakhlov , G. Pakhlova , S. Pardi , S. -H. Park , S. Patra , S. Paul , T. K. Pedlar , R. Pestotnik , L. E. Piilonen , T. Podobnik , V. Popov , E. Prencipe , M. T. Prim , M. Ritter , M. Röhrken , A. Rostomyan , N. Rout , M. Rozanska , G. Russo , D. Sahoo , Y. Sakai , S. Sandilya , A. Sangal , L. Santelj , T. Sanuki , V. Savinov , G. Schnell , J. Schueler , C. Schwanda , A. J. Schwartz , Y. Seino , K. Senyo , M. E. Sevior , M. Shapkin , V. Shebalin , J. -G. Shiu , E. Solovieva , S. Stanič , M. Starič , Z. S. Stottler , T. Sumiyoshi , W. Sutcliffe , M. Takizawa , U. Tamponi , K. Tanida , F. Tenchini , K. Trabelsi , M. Uchida , T. Uglov , Y. Unno , S. Uno , P. Urquijo , Y. Ushiroda , G. Varner , A. Vinokurova , V. Vorobyev , C. H. Wang , E. Wang , M. -Z. Wang , P. Wang , X. L. Wang , S. Watanuki , E. Won , X. Xu , B. D. Yabsley , W. Yan , S. B. Yang , H. Ye , J. H. Yin , C. Z. Yuan , Y. Yusa , Z. P. Zhang , V. Zhilich , V. Zhukova , V. Zhulanov

We search for $CP$ violation in the singly-Cabibbo-suppressed decay $D^{0}\rightarrow K^{+}K^{-}\pi^{+}\pi^{-}$ using data corresponding to an integrated luminosity of $988\text{ }{\rm fb}^{-1}$ collected by the Belle detector at the KEKB…

High Energy Physics - Experiment · Physics 2019-02-06 Belle Collaboration , J. B. Kim , E. Won , I. Adachi , H. Aihara , S. Al Said , D. M. Asner , H. Atmacan , V. Aulchenko , T. Aushev , V. Babu , I. Badhrees , S. Bahinipati , A. M. Bakich , V. Bansal , P. Behera , C. Beleño , B. Bhuyan , T. Bilka , J. Biswal , A. Bobrov , A. Bozek , M. Bračko , L. Cao , D. Červenkov , P. Chang , V. Chekelian , A. Chen , B. G. Cheon , K. Chilikin , K. Cho , S. -K. Choi , Y. Choi , D. Cinabro , S. Cunliffe , N. Dash , S. Di Carlo , Z. Doležal , T. V. Dong , S. Eidelman , D. Epifanov , J. E. Fast , T. Ferber , A. Frey , B. G. Fulsom , R. Garg , V. Gaur , N. Gabyshev , A. Garmash , M. Gelb , A. Giri , P. Goldenzweig , D. Greenwald , Y. Guan , J. Haba , T. Hara , K. Hayasaka , H. Hayashii , W. -S. Hou , T. Iijima , K. Inami , G. Inguglia , A. Ishikawa , R. Itoh , M. Iwasaki , Y. Iwasaki , S. Jia , Y. Jin , D. Joffe , G. Karyan , T. Kawasaki , H. Kichimi , C. Kiesling , D. Y. Kim , H. J. Kim , S. H. Kim , K. Kinoshita , P. Kodyš , S. Korpar , D. Kotchetkov , P. Križan , R. Kroeger , P. Krokovny , R. Kulasiri , A. Kuzmin , Y. -J. Kwon , Y. -T. Lai , K. Lalwani , J. S. Lange , I. S. Lee , J. K. Lee , J. Y. Lee , S. C. Lee , C. H. Li , L. K. Li , Y. B. Li , L. Li Gioi , J. Libby , Z. Liptak , D. Liventsev , P. -C. Lu , M. Lubej , T. Luo , J. MacNaughton , M. Masuda , T. Matsuda , D. Matvienko , M. Merola , K. Miyabayashi , R. Mizuk , G. B. Mohanty , H. K. Moon , T. Mori , M. Mrvar , R. Mussa , E. Nakano , M. Nakao , K. J. Nath , M. Nayak , N. K. Nisar , S. Nishida , S. Ogawa , G. Pakhlova , B. Pal , S. Pardi , H. Park , S. Paul , T. K. Pedlar , R. Pestotnik , L. E. Piilonen , V. Popov , K. Prasanth , E. Prencipe , A. Rabusov , P. K. Resmi , M. Ritter , A. Rostomyan , G. Russo , Y. Sakai , M. Salehi , S. Sandilya , L. Santelj , T. Sanuki , V. Savinov , O. Schneider , G. Schnell , C. Schwanda , Y. Seino , K. Senyo , O. Seon , C. P. Shen , T. -A. Shibata , J. -G. Shiu , E. Solovieva , M. Starič , J. F. Strube , M. Sumihama , T. Sumiyoshi , W. Sutcliffe , M. Takizawa , K. Tanida , Y. Tao , F. Tenchini , M. Uchida , T. Uglov , Y. Unno , S. Uno , P. Urquijo , R. Van Tonder , G. Varner , B. Wang , C. H. Wang , M. -Z. Wang , P. Wang , X. L. Wang , E. Widmann , H. Yamamoto , S. B. Yang , H. Ye , C. Z. Yuan , Y. Yusa , Z. P. Zhang , V. Zhilich , V. Zhukova , V. Zhulanov

We have searched for CP violation in the charmed meson decays $D^{+}_{(s)}\to K^0_S\pi^+$ and $D^{+}_{(s)}\to K^0_S K^+$ using 673 fb$^{-1}$ of data collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. No…

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

Recent results obtained using the data sample of 23.6 fb^-1 collected on the Y(5S) resonance with the Belle detector at the KEKB asymmetric energy e+ e- collider are discussed. Measurements of several B_s^0 decay branching fractions are…

High Energy Physics - Experiment · Physics 2009-05-19 A. Drutskoy

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 recent progresses in radiative penguin decays of $B$ meson using a large sample of $B\bar{B}$ pairs recorded at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric energy $e^+e^-$ collider. We report…

High Energy Physics - Experiment · Physics 2008-10-20 Jin Li

We report a measurement of the CP-odd fraction and the time-dependent CP violation in B0 to D*+D*- decays, using 657.10^6 BBbar events collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e-…

High Energy Physics - Experiment · Physics 2019-08-13 K. Vervink , T. Aushev , O. Schneider

In this review recent studies on $CP$ violation and related hadronic $B$ decays by the Belle experiment, in particular measurements of CKM angles $\phi_1$ and $\phi_2$ are reported.

High Energy Physics - Experiment · Physics 2019-08-13 Bilas Pal

Using the full data sample collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider, we have searched for CP violation of charmed mesons in $D^+\rightarrow K^0_S\pi^+$ and $D^0\rightarrow h^+h^-$ decays, where $h$…

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

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 present an improved measurement of CP-violating asymmetries in B0 -> pi+ pi- decays based on a 78/fb data sample collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We reconstruct one…

High Energy Physics - Experiment · Physics 2007-05-23 T. Nakadaira

We report a measurement of the CP-violating parameters in B0->K0S K0S decays based on a data sample of 657 million BBbar pairs collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. In this…

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

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