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We report the results of a search for the rare baryonic decays $B^0 \to p\bar{p}$, $\Lambda\bar{\Lambda}$, and $B^+ \to p\bar{\Lambda}$. The analysis is based on a data set of $31.7\times 10^6 B\bar{B}$ events collected by the Belle…

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

We study the doubly charmful two-body and three-body baryonic B decays $\bar B\to \Lambda_c^+\bar \Lambda_c^-$ and $\bar B\to \Lambda_c^+\bar \Lambda_c^- \bar K$. As pointed out before, a naive estimate of the branching ratio ${\cal…

High Energy Physics - Phenomenology · Physics 2009-06-30 Hai-Yang Cheng , Chun-Khiang Chua , Yu-Kuo Hsiao

We report a search for the charmless baryonic decay $B^0\to p\bar{p}\pi^0$ with a data sample corresponding to an integrated luminosity of 711~$\rm fb^{-1}$ containing $(772\pm 10)\times 10^6$ $B^0\bar{B}^0$ pairs. The data was collected by…

High Energy Physics - Experiment · Physics 2019-06-05 Belle Collaboration , B. Pal , I. Adachi , K. Adamczyk , H. Aihara , D. M. Asner , H. Atmacan , V. Aulchenko , T. Aushev , R. Ayad , V. Babu , I. Badhrees , V. Bansal , P. Behera , C. Beleño , M. Berger , V. Bhardwaj , B. Bhuyan , T. Bilka , J. Biswal , A. Bobrov , A. Bozek , M. Bračko , T. E. Browder , M. Campajola , L. Cao , D. Červenkov , V. Chekelian , A. Chen , B. G. Cheon , K. Chilikin , K. Cho , S. -K. Choi , Y. Choi , D. Cinabro , S. Cunliffe , S. Di Carlo , Z. Doležal , T. V. Dong , D. Dossett , S. Eidelman , D. Epifanov , J. E. Fast , T. Ferber , B. G. Fulsom , R. Garg , V. Gaur , N. Gabyshev , A. Garmash , A. Giri , P. Goldenzweig , Y. Guan , 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 , S. Jia , Y. Jin , D. Joffe , K. K. Joo , A. B. Kaliyar , G. Karyan , H. Kichimi , C. Kiesling , C. H. Kim , D. Y. Kim , K. T. Kim , S. H. Kim , K. Kinoshita , P. Kodyš , S. Korpar , D. Kotchetkov , P. Križan , R. Kroeger , P. Krokovny , R. Kulasiri , Y. -J. Kwon , J. Y. Lee , S. C. Lee , L. K. Li , Y. B. Li , L. Li Gioi , J. Libby , D. Liventsev , P. -C. Lu , T. Luo , J. MacNaughton , C. MacQueen , M. Masuda , T. Matsuda , D. Matvienko , M. Merola , K. Miyabayashi , H. Miyata , R. Mizuk , G. B. Mohanty , M. Nakao , K. J. Nath , M. Nayak , N. K. Nisar , S. Nishida , K. Nishimura , S. Ogawa , H. Ono , Y. Onuki , P. Pakhlov , G. Pakhlova , S. Pardi , S. -H. Park , S. Patra , S. Paul , T. K. Pedlar , R. Pestotnik , L. E. Piilonen , V. Popov , E. Prencipe , A. Rostomyan , G. Russo , Y. Sakai , M. Salehi , S. Sandilya , T. Sanuki , V. Savinov , O. Schneider , G. Schnell , J. Schueler , C. Schwanda , A. J. Schwartz , Y. Seino , K. Senyo , M. E. Sevior , C. P. Shen , J. -G. Shiu , F. Simon , A. Sokolov , E. Solovieva , M. Starič , Z. S. Stottler , J. F. Strube , T. Sumiyoshi , W. Sutcliffe , M. Takizawa , U. Tamponi , K. Tanida , F. Tenchini , M. Uchida , T. Uglov , S. Uno , P. Urquijo , R. Van Tonder , G. Varner , A. Vinokurova , B. Wang , C. H. Wang , M. -Z. Wang , P. Wang , M. Watanabe , S. Watanuki , E. Won , S. B. Yang , H. Ye , J. Yelton , Y. Yusa , J. Zhang , Z. P. Zhang , V. Zhilich , V. Zhukova

We study the three-body baryonic decay $ \bar{B}^{0}\rightarrow\Lambda^+_c \bar{p} \pi^0$ based on the factorization approach. The most important Feynman diagrams for this decay mode are factorizable and non-factorizable contributions, so…

High Energy Physics - Phenomenology · Physics 2020-11-13 Shima Rafibakhsh , Hossein Mehraban

We have studied two-body charmless hadronic decays of $B$ mesons into the final states phi K and phi K^*. Using 9.7 million $B\bar{B}$ pairs collected with the CLEO II detector, we observe the decays B- -> phi K- and B0 -> phi K*0 with the…

High Energy Physics - Experiment · Physics 2010-04-08 R. A. Briere , CLEO Collaboration

We study the three-body charmed baryonic decays $\bar{B}^0\to\Sigma_c^{++} \bar{p}\pi^-$ and $\bar{B}^0\to\Sigma_c^{0}\bar{p}\pi^+$ in the four-body final state $\bar{B}^0\to\Lambda_c^{+}\bar{p}\pi^+\pi^-$, using a data sample of 357…

High Energy Physics - Experiment · Physics 2019-08-14 K. S. Park , H. Kichimi

We study the three-body anti-triplet ${\bf B_c}\to {\bf B_n}MM'$ decays with the $SU(3)$ flavor ($SU(3)_f$) symmetry, where ${\bf B_c}$ denotes the charmed baryon anti-triplet of $(\Xi_c^0,-\Xi_c^+,\Lambda_c^+)$, and ${\bf B_n}$ and $M(M')$…

High Energy Physics - Phenomenology · Physics 2019-04-17 C. Q. Geng , Y. K. Hsiao , Chia-Wei Liu , Tien-Hsueh Tsai

We present results for B-meson decay modes involving a charm meson, protons, and pions using 455 x 10^6 BBbar pairs recorded by the BaBar detector at the SLAC PEP-II asymmetric-energy e+ e- collider. The branching fractions are measured for…

High Energy Physics - Experiment · Physics 2012-06-18 The BABAR Collaboration , del Amo Sanchez , others

We study exclusive B decays to final states containing a charmed baryon within the pole model framework. Since the strong coupling for $\Lambda_b\bar B N$ is larger than that for $\Sigma_b \bar BN$, the two-body charmful decay…

High Energy Physics - Phenomenology · Physics 2009-11-07 Hai-Yang Cheng , Kwei-Chou Yang

We present studies of two-body and three-body charmed baryonic B decays in a sample of 232 million $B\bar{B}$ pairs collected with the BABAR detector at the PEP-II $e^+e^-$ storage ring. The branching fractions of the decays $\bar{B}^{0}…

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

We report the observation of the baryonic decay $\bar{B}^0 \to \Lambda^+_c \bar{p} K^- K^+$ using a data sample of $471 \times 10^6$ $B\bar{B}$ pairs produced in $e^+e^-$ annihilations at $\sqrt{s}=10.58 \mathrm{\,GeV}$. This data sample…

High Energy Physics - Experiment · Physics 2015-04-01 BABAR Collaboration

The baryonic $b\to s$ transition $\Lambda_b\to\Lambda^{(*)}\nu{\bar\nu}$ is analyzed. We combine the mesonic counterpart $B^+\to K^+\nu{\bar\nu}$ and $B^0\to K^{*0}\nu{\bar\nu}$ as well as other observables involving $B$ mesons like…

High Energy Physics - Phenomenology · Physics 2026-04-22 Jong-Phil Lee

We report measurements of B-meson decays into two- and three-body final states containing two charmed baryons using a sample of 230 million Y(4S) -> B Bbar decays. We find significant signals in two modes, measuring branching fractions…

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

The Belle-II experiment has recently reported the first measurement of $B^+ \to K^+ \nu\bar{\nu}$ decay which exceeds the Standard Model prediction by approximately 2.7$\sigma$. The deviation may indicate the presence of new physics beyond…

High Energy Physics - Phenomenology · Physics 2025-08-08 Diganta Das , Dargi Shameer , Ria Sain

We study the charmless two-body $\Lambda_b\to \Lambda (\phi,\eta^{(\prime)})$ and three-body $\Lambda_b\to \Lambda K^+K^- $ decays. We obtain ${\cal B}(\Lambda_b\to \Lambda\phi)=(3.53\pm 0.24)\times 10^{-6}$ to agree with the recent LHCb…

High Energy Physics - Phenomenology · Physics 2016-08-24 C. Q. Geng , Y. K. Hsiao , Yu-Heng Lin , Yao Yu

We study charmless $B^+$ meson decays to the $p \bar{\Lambda} \pi^+ \pi^-$ final state using a $605 {\rm fb}^{-1}$ data sample 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 P. Chen , M. -Z. Wang

We study the charmful three-body baryonic B decays $\bar B\to D^{(*)}N\bar N$: the color-allowed modes $\bar B^0\to D^{(*)+}n\bar p$ and the color-suppressed ones $\bar B^0\to D^{(*)0}p\bar p$. While the $D^{*+}/D^+$ production ratio is…

High Energy Physics - Phenomenology · Physics 2009-11-07 Hai-Yang Cheng , Kwei-Chou Yang

We study decay rates and spectra of anti-B --> Lambda anti-p pi, Sigma0 anti-p pi, Sigma- anti-n pi, Xi0 anti-Sigma+ pi, Xi- anti-Sigma0 pi and Xi- anti-Lambda pi modes under a factorization approach. The baryon pairs are produced through…

High Energy Physics - Phenomenology · Physics 2009-01-07 Chun-Khiang Chua , Wei-Shu Hou

Evidence is presented for the baryonic $B$ meson decay $\bar{B}\rightarrow D^0 \Lambda \bar{\Lambda}$ based on a data sample of $471 \times 10^6$ $B\bar{B}$ pairs collected with the {\it BABAR} detector at the PEP2 asymmetric $e^+e^-$…

High Energy Physics - Experiment · Physics 2014-06-11 The BABAR Collaboration , J. P. Lees , others

The di-leptons and di-neutrinos observed in the final states of flavor-changing neutral b decays provide an ideal platform for probing physics beyond the standard model. Although the latest measurements of $R_{K^{(*)}}$ agree well with the…

High Energy Physics - Phenomenology · Physics 2023-07-10 Nilakshi Das , Rupak Dutta