Related papers: Evidence for B0->pi0pi0

First Observation of Radiative B^0 -> \phi K^0 \gamma Decays and Measurements of Their Time-Dependent CP Violation

We report the first observation of the radiative decay B^0 -> \phi K^0 \gamma using a data sample of 772 x 10^6 B B-bar pairs collected at the \Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^+e^- collider. We…

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

Evidence for the Rare Decay B -> J/psi eta K

We report evidence for the $B$ meson decays, $B^\pm\to J/\psi \eta K^\pm$ and $B^0\to J/\psi \eta K^0_S$, using {90} million $B\bar B$ events collected at the $\ensuremath{\Upsilon{(4S)}}$ resonance with the \babar detector at the PEP-II…

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

Search for the decay $B^+\rightarrow\overline{K}{}^{*0}K^{*+}$ at Belle

We report a search for the rare charmless decay $B^+\rightarrow\overline{K}{}^{*0}K^{*+}$ using a data sample of $772\times10^6$ $B\bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB…

High Energy Physics - Experiment · Physics 2015-04-16 Belle Collaboration , Y. M. Goh , Y. Unno , B. G. Cheon , A. Abdesselam , I. Adachi , H. Aihara , S. Al Said , K. Arinstein , V. Aulchenko , T. Aushev , R. Ayad , V. Bansal , E. Barberio , B. Bhuyan , A. Bozek , M. Bračko , T. E. Browder , A. Chen , V. Chobanova , D. Cinabro , Z. Doležal , Z. Drásal , D. Dutta , S. Eidelman , H. Farhat , T. Ferber , V. Gaur , A. Garmash , R. Gillard , B. Golob , J. Haba , T. Hara , H. Hayashii , X. H. He , W. -S. Hou , M. Huschle , T. Iijima , A. Ishikawa , R. Itoh , Y. Iwasaki , I. Jaegle , D. Joffe , T. Julius , K. H. Kang , T. Kawasaki , D. Y. Kim , H. J. Kim , J. B. Kim , J. H. Kim , K. T. Kim , M. J. Kim , S. H. Kim , B. R. Ko , P. Kodyš , S. Korpar , P. Križan , P. Krokovny , T. Kuhr , Y. -J. Kwon , J. S. Lange , I. S. Lee , Y. Li , L. Li Gioi , J. Libby , D. Liventsev , P. Lukin , K. Matsuoka , D. Matvienko , H. Miyake , H. Miyata , R. Mizuk , G. B. Mohanty , S. Mohanty , A. Moll , H. K. Moon , R. Mussa , E. Nakano , T. Nanut , M. Nayak , N. K. Nisar , S. Nishida , S. Ogawa , S. Okuno , W. Ostrowicz , G. Pakhlova , C. W. Park , H. Park , M. Petrič , L. E. Piilonen , E. Ribežl , M. Ritter , A. Rostomyan , Y. Sakai , S. Sandilya , T. Sanuki , V. Savinov , O. Schneider , G. Schnell , C. Schwanda , K. Senyo , M. E. Sevior , V. Shebalin , T. -A. Shibata , J. -G. Shiu , B. Shwartz , F. Simon , Y. -S. Sohn , A. Sokolov , E. Solovieva , M. Starič , M. Sumihama , T. Sumiyoshi , U. Tamponi , G. Tatishvili , Y. Teramoto , V. Trusov , M. Uchida , S. Uno , Y. Usov , C. Van Hulse , P. Vanhoefer , G. Varner , A. Vinokurova , C. H. Wang , M. -Z. Wang , P. Wang , Y. Watanabe , K. M. Williams , E. Won , S. Yashchenko , Y. Yusa , Z. P. Zhang , V. Zhilich

Improved measurement of B0bar -> D_s^-D^+ and search for B0bar -> D_s^+D_s^- at Belle

We reconstruct B0bar -> D_s^-D^+ decays using a sample of 275 million BBbar pairs recorded by the Belle experiment, and we measure the branching fraction to be [7.42 +- 0.23(stat) +- 1.36(syst)] x 10^(-3). We also search for the related…

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

Observation of B+ -> Dbar*0 tau+ nu_tau and Evidence for B+ -> Dbar^0 tau+ nu_tau at Belle

We present measurements of B+ -> Dbar*0 tau+ nu_tau and B+ -> Dbar^0 tau+ nu_tau decays in a data sample of 657 x 10^6 BBbar pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. We find 446^{+58}_{-56} events…

High Energy Physics - Experiment · Physics 2014-11-21 A. Bozek , M. Rozanska et al.

Observation of the Decay \bar{B0}-> Ds+ Lambda \bar{p}

We report the first observation of the decay \bar{B0} -> D_s^+ Lambda \bar{p} with a statistical significance of 6.6 sigma. We measure Br(\bar{B0} -> Ds+ Lambda \bar{p}) = (2.9 \pm 0.7\pm 0.5 \pm 0.4)* 10^{-5}, where the first error is…

High Energy Physics - Experiment · Physics 2019-08-12 T. Medvedeva , R. Chistov

Observation of $B_s^{0} \to D_s^{*-} \pi^{+}$, $B_s^{0} \to D_s^{(*)-} \rho^{+} $ and $B_s^{0} \to D_s^{(*)+} D_s^{(*)-}$ and Estimate of $\Delta \Gamma_{CP}$ at Belle

The large data sample being recorded with the Belle detector at the $\Upsilon$(5S) energy provides a unique opportunity to study the less-well-known $B_s^{0}$ meson decays. Following our recent measurement of $B_s^{0}\to D_s^{-}\pi^{+}$ in…

High Energy Physics - Experiment · Physics 2019-08-13 Sevda Esen

Study of B^0 -> rho^0 rho^0 decays, implications for the CKM angle phi_2 and search for other B^0 decay modes with a four-pion final state

We present a study of the branching fraction of the decay B^0->rho0rho0 and the fraction of longitudinally polarized rho0 mesons in this decay. The results are obtained from the final data sample containing 772 million BBbar pairs collected…

High Energy Physics - Experiment · Physics 2014-04-15 The Belle Collaboration , P. Vanhoefer , J. Dalseno , C. Kiesling , I. Adachi , H. Aihara , D. M. Asner , V. Aulchenko , T. Aushev , A. M. Bakich , A. Bala , V. Bhardwaj , B. Bhuyan , G. Bonvicini , A. Bozek , M. Braçko , T. E. Browder , M. -C. Chang , P. Chang , V. Chekelian , A. Chen , P. Chen , B. G. Cheon , K. Chilikin , R. Chistov , K. Cho , V. Chobanova , Y. Choi , D. Cinabro , Z. Doleczal , Z. Draśal , S. Eidelman , H. Farhat , J. E. Fast , T. Ferber , V. Gaur , N. Gabyshev , S. Ganguly , A. Garmash , R. Gillard , Y. M. Goh , B. Golob , T. Hara , K. Hayasaka , H. Hayashii , T. Higuchi , Y. Horii , Y. Hoshi , W. -S. Hou , H. J. Hyun , T. Iijima , A. Ishikawa , R. Itoh , Y. Iwasaki , T. Iwashita , I. Jaegle , T. Julius , D. H. Kah , E. Kato , H. Kawai , T. Kawasaki , D. Y. Kim , H. O. Kim , J. B. Kim , J. H. Kim , M. J. Kim , Y. J. Kim , K. Kinoshita , J. Klucar , B. R. Ko , S. Korpar , P. Kriczan , P. Krokovny , B. Kronenbitter , T. Kuhr , T. Kumita , A. Kuzmin , Y. -J. Kwon , J. S. Lange , S. -H. Lee , J. Li , L. Li Gioi , J. Libby , C. Liu , Y. Liu , D. Liventsev , P. Lukin , K. Miyabayashi , H. Miyata , R. Mizuk , G. B. Mohanty , A. Moll , H. -G. Moser , R. Mussa , E. Nakano , M. Nakao , Z. Natkaniec , E. Nedelkovska , N. K. Nisar , S. Nishida , O. Nitoh , S. Ogawa , P. Pakhlov , G. Pakhlova , C. W. Park , H. Park , H. K. Park , T. K. Pedlar , R. Pestotnik , M. Petriç , L. E. Piilonen , M. Ritter , M. Röhrken , A. Rostomyan , S. Ryu , H. Sahoo , T. Saito , Y. Sakai , S. Sandilya , L. Santelj , T. Sanuki , Y. Sato , V. Savinov , O. Schneider , G. Schnell , C. Schwanda , A. J. Schwartz , D. Semmler , K. Senyo , O. Seon , M. E. Sevior , M. Shapkin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , B. Shwartz , A. Sibidanov , F. Simon , Y. -S. Sohn , A. Sokolov , E. Solovieva , M. Stariç , M. Steder , T. Sumiyoshi , U. Tamponi , G. Tatishvili , Y. Teramoto , K. Trabelsi , T. Tsuboyama , M. Uchida , S. Uehara , Y. Unno , S. Uno , S. E. Vahsen , C. Van Hulse , G. Varner , K. E. Varvell , A. Vinokurova , V. Vorobyev , M. N. Wagner , C. H. Wang , M. -Z. Wang , P. Wang , X. L. Wang , Y. Watanabe , K. M. Williams , E. Won , Y. Yamashita , S. Yashchenko , Y. Yook , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc

Observation of the decays B- to Ds(*)+ K- pi-

We report first observations of the decays B- to Ds(*)+ K- pi-, using 292 fb^-1 of data collected at Upsilon(4S) resonance energy by the BaBar detector at the PEP II e+ e- collider. The branching fractions are measured to be B(B- to Ds+ K-…

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

Improved Evidence for Direct CP Violation in B0 --> pi+ pi- Decays and Model-Independent Constraints on phi_2

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

Observation of B Meson Decays to omegapi+, omegaK+, and omegaK0

We present preliminary measurements of B meson decays to omegapi+, omegaK+, and omegaK0. The data were recorded with the BABAR detector and correspond to 88.9x10^6 BBbar pairs produced in e+e- annihilation at the Upsilon(4S) resonance. We…

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

Observation of B+ --> K1(1270)+ gamma

We report the observation of the radiative decay B+ --> K1(1270)+ gamma using a data sample of 140 fb-1 taken at the Upsilon(4S) resonance with the Belle detector at the KEKB e+e- collider. We find the branching fraction to be Br(B+ -->…

High Energy Physics - Experiment · Physics 2019-08-14 Heyoung Yang

Measurement of the branching fractions for B- --> D(*)+ pi- l- nu-bar and B0bar --> D(*)0 pi+ l- nu-bar

We report on a measurement of the branching fractions for B- --> D(*)+ pi- l- nu-bar and B0bar --> D(*)0 pi+ l- nu-bar with 275 million BBbar events collected at the Upsilon(4S) resonance with the Belle detector at KEKB. Events are tagged…

High Energy Physics - Experiment · Physics 2008-11-26 The Belle Collaboration , D. Liventsev , T. Matsumoto

Search for $B^0 \to J/\psi \phi $

We report a search for the decay $B^0 \to J/\psi \phi$, using a sample of 657 $\times 10^6$ $B\bar{B}$ pairs collected with the Belle detector at the $\Upsilon(4S)$ resonance. No statistically significant signal is found and an upper limit…

High Energy Physics - Experiment · Physics 2008-11-26 Belle Collaboration , Y. Liu , K. Trabelsi

Observation of B0bar --> D0 eta' and B0bar --> D*0 eta'

We report the observation of B0bar --> D0 eta' and the first observation of B0bar --> D*0 eta', using 140 fb-1 of data collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e+ e- collider. We find the…

High Energy Physics - Experiment · Physics 2019-08-14 J. Schuemann

Observation of the rare decay B+->K+pi0pi0 and measurement of the quasi-two body contributions B+->K*(892)+pi0, B+->f0(980)K+ and B+->chic0K+

We report an analysis of the charmless hadronic decays of charged B meson to the final state K+pi0pi0, using a data sample of 470+/-2.8 million BBbar events collected at the Y(4S) resonance. We observe an excess of signal events, with a…

High Energy Physics - Experiment · Physics 2011-12-01 The BaBar Collaboration , J. P. Lees

Evidence for the suppressed decay B^- -> DK^-, D -> K^+\pi^-\pi^0

We report a study of the suppressed decay B^- -> DK^-, D -> K^+\pi^-\pi^0, where D denotes either a D^0 or a \bar{D}^0 meson. The decay is sensitive to the CP-violating parameter \phi_3. Using a data sample of 772 x 10^6 B\bar{B} pairs…

High Energy Physics - Experiment · Physics 2019-12-24 Belle Collaboration , M. Nayak , J. Libby , K. Trabelsi , I. Adachi , H. Aihara , D. M. Asner , T. Aushev , A. M. Bakich , A. Bala , P. Behera , K. Belous , V. Bhardwaj , G. Bonvicini , A. Bozek , M. Bračko , T. E. Browder , D. Červenkov , M. -C. Chang , P. Chang , V. Chekelian , A. Chen , B. G. Cheon , R. Chistov , I. -S. Cho , K. Cho , V. Chobanova , Y. Choi , D. Cinabro , J. Dalseno , M. Danilov , Z. Doležal , Z. Drásal , D. Dutta , S. Eidelman , S. Esen , H. Farhat , J. E. Fast , T. Ferber , V. Gaur , N. Gabyshev , S. Ganguly , R. Gillard , Y. M. Goh , B. Golob , J. Haba , H. Hayashii , Y. Horii , Y. Hoshi , W. -S. Hou , H. J. Hyun , T. Iijima , A. Ishikawa , T. Iwashita , I. Jaegle , T. Julius , D. H. Kah , E. Kato , D. Y. Kim , H. J. Kim , J. B. Kim , M. J. Kim , Y. J. Kim , K. Kinoshita , J. Klucar , B. R. Ko , P. Kodyš , S. Korpar , P. Krishnan , P. Križan , P. Krokovny , T. Kuhr , T. Kumita , A. Kuzmin , Y. -J. Kwon , S. -H. Lee , J. Li , Y. Li , L. Li Gioi , Y. Liu , D. Liventsev , P. Lukin , H. Miyake , R. Mizuk , G. B. Mohanty , A. Moll , T. Mori , N. Muramatsu , R. Mussa , Y. Nagasaka , M. Nakao , E. Nedelkovska , K. Negishi , C. Ng , N. K. Nisar , O. Nitoh , S. Ogawa , S. Okuno , Y. Onuki , P. Pakhlov , G. Pakhlova , C. W. Park , H. Park , T. K. Pedlar , M. Petrič , L. E. Piilonen , M. Ritter , M. Röhrken , A. Rostomyan , H. Sahoo , T. Saito , Y. Sakai , S. Sandilya , L. Santelj , T. Sanuki , V. Savinov , O. Schneider , G. Schnell , C. Schwanda , A. J. Schwartz , K. Senyo , O. Seon , M. E. Sevior , M. Shapkin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , B. Shwartz , A. Sibidanov , F. Simon , Y. -S. Sohn , A. Sokolov , E. Solovieva , M. Starič , M. Steder , Z. Suzuki , U. Tamponi , G. Tatishvili , Y. Teramoto , M. Uchida , T. Uglov , Y. Unno , S. Uno , P. Urquijo , S. E. Vahsen , C. Van Hulse , P. Vanhoefer , G. Varner , K. E. Varvell , M. N. Wagner , C. H. Wang , M. -Z. Wang , Y. Watanabe , K. M. Williams , E. Won , Y. Yamashita , S. Yashchenko , Y. Yusa , V. Zhilich , V. Zhulanov , A. Zupanc

Measurement of the Branching Fractions of the Rare Decays B0->Ds(*)+pi-, B0->Ds(*)+rho-, and B0->Ds(*)-K(*)+

We report the measurement of the branching fractions of the rare decays B0->Ds(*)+pi-, B0->Ds(*)+rho-, and B0->Ds(*)-K(*)+ in a sample of 381 million Y(4S) decays into BBbar pairs collected with the BABAR detector at the PEP-II…

High Energy Physics - Experiment · Physics 2010-04-12 The BABAR Collaboration , B. Aubert

Study of B0 -> pi0pi0, B+ -> pi+pi0 and B+ -> K+pi0 decays

We present updated measurements of the branching fractions for the modes B0->pi0pi0, B+ -> pi+pi0, and B+ -> K+pi0. We also measure the time-integrated asymmetry C_pi0pi0 and the charge asymmetries A_CP(pi+pi0) and A_CP(K+pi0). Based on a…

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

A Search for the Decay B^0 -> gamma gamma

We report the result of a search for the rare decay B^0 -> gamma gamma in 426 fb-1 of data, corresponding to 226 million B^0 \bar{B}^0 pairs, collected on the Upsilon(4S) resonance at the PEP-II asymmetric-energy e+e- collider using the…

High Energy Physics - Experiment · Physics 2011-02-18 The BABAR Collaboration , P. del Amo Sanchez et al