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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 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 $B_c$ meson, a unique bound state comprising of two open heavy flavors, charm and bottom, offers a rich avenue for probing the predictions of the Next Decade - Standard Model (ND-SM) physics properties due to its heavy mass. With recent…

High Energy Physics - Phenomenology · Physics 2024-11-19 Sonali Patnaik

In the large $N_c$ limit, the nonleptonic width of the B meson is determined by the lepton mass spectrum in semileptonic B decay and the hadron mass spectrum in $\tau$ decay. This result can be compared with the nonleptonic width computed…

High Energy Physics - Phenomenology · Physics 2009-06-12 Zoltan Ligeti , Aneesh V. Manohar

In a sample of 467 million $B\overline B$ pairs collected with the BABAR detector at the PEP-II collider at SLAC we have observed the decay $\overline{B}^0\rightarrow\Lambda_c^+{\overline p} \pi^0$ and measured the branching fraction to be…

High Energy Physics - Experiment · Physics 2014-11-21 The BABAR Collaboration , B. Aubert et al.

A sample of 3.95M $\psi(2S)$ decays registered in the BES detector are used to study final states containing pairs of octet and decuplet baryons. We report branching fractions for $\psi(2S)\to p\bar{p}$, $\Lambda\bar{\Lambda}$,…

High Energy Physics - Experiment · Physics 2008-11-26 J. Z. Bai

We have measured the energy spectra of pions and protons emitted in the weak decay of 12_Lambda_C, 28_Lambda_Si, and Lambda_Fe hypernuclei produced via the (pi+, K+) reaction. The decay widths of the pi- mesonic decay (Lambda -> p + pi-)…

Non-leptonic decays of B mesons into two mesons or meson resonances are studied on the basis of two versions of simple pole-dominance models involving scalar, vector, pseudoscalar and axial-vector poles. The results are compared with those…

High Energy Physics - Phenomenology · Physics 2014-11-17 Gustav Kramer , Cai-Dian Lu

We study the baryonic charmonium decays of $B$ mesons, $B^+ \to \eta_c K^+$ and $B^+ \to J/\psi K^+$, where $\eta_c$ and $J/\psi$ subsequently decay into a $p\bar p$ or $\Lambda\bar\Lambda$ pair. The charmonium produced in the above $B$…

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

We study the weak decay $\Omega_b^- \to (\Xi_c^+ \, K^-) \, \pi^-$, in view of the narrow $\Omega_c$ states recently measured by the LHCb collaboration and later confirmed by the Belle collaboration. The $\Omega_c(3050)$ and…

High Energy Physics - Phenomenology · Physics 2018-12-04 V. R. Debastiani , J. M. Dias , Wei-Hong Liang , E. Oset

We study the semileptonic decay of $\Lambda_c$ to $\nu l^+$ and $\Lambda(1405)$, where the $\Lambda(1405)$ is seen in the invariant mass distribution of $\pi \Sigma$. We perform the hadronization of the quarks produced in the reaction in…

High Energy Physics - Phenomenology · Physics 2016-01-27 N. Ikeno , E. Oset

Using 106 $\times 10^{6}$ $\psi^{\prime}$ decays collected with the BESIII detector at the BEPCII, three decays of $\chi_{cJ}$ ($J=0,1,2$) with baryon pairs ($\llb$, $\ssb$, $\SSB$) in the final state have been studied. The branching…

High Energy Physics - Experiment · Physics 2013-03-06 M. Ablikim , M. N. Achasov , O. Albayrak , D. J. Ambrose , F. F. An , Q. An , J. Z. Bai , Y. Ban , J. Becker , J. V. Bennett , M. Bertani , J. M. Bian , E. Boger , O. Bondarenko , I. Boyko , R. A. Briere , V. Bytev , X. Cai , O. Cakir , A. Calcaterra , G. F. Cao , S. A. Cetin , J. F. Chang , G. Chelkov , G. Chen , H. S. Chen , J. C. Chen , M. L. Chen , S. J. Chen , X. Chen , Y. B. Chen , H. P. Cheng , Y. P. Chu , D. Cronin-Hennessy , H. L. Dai , J. P. Dai , D. Dedovich , Z. Y. Deng , A. Denig , I. Denysenko , M. Destefanis , W. M. Ding , Y. Ding , L. Y. Dong , M. Y. Dong , S. X. Du , J. Fang , S. S. Fang , L. Fava , C. Q. Feng , R. B. Ferroli , P. Friedel , C. D. Fu , Y. Gao , C. Geng , K. Goetzen , W. X. Gong , W. Gradl , M. Greco , M. H. Gu , Y. T. Gu , Y. H. Guan , A. Q. Guo , L. B. Guo , T. Guo , Y. P. Guo , Y. L. Han , F. A. Harris , K. L. He , M. He , Z. Y. He , T. Held , Y. K. Heng , Z. L. Hou , C. Hu , H. M. Hu , J. F. Hu , T. Hu , G. M. Huang , G. S. Huang , J. S. Huang , L. Huang , X. T. Huang , Y. Huang , Y. P. Huang , T. Hussain , C. S. Ji , Q. Ji , Q. P. Ji , X. B. Ji , X. L. Ji , L. L. Jiang , X. S. Jiang , J. B. Jiao , Z. Jiao , D. P. Jin , S. Jin , F. F. Jing , N. Kalantar-Nayestanaki , M. Kavatsyuk , B. Kopf , M. Kornicer , W. Kuehn , W. Lai , J. S. Lange , M. Leyhe , C. H. Li , Cheng Li , Cui Li , D. M. Li , F. Li , G. Li , H. B. Li , J. C. Li , K. Li , Lei Li , Q. J. Li , S. L. Li , W. D. Li , W. G. Li , X. L. Li , X. N. Li , X. Q. Li , X. R. Li , Z. B. Li , H. Liang , Y. F. Liang , Y. T. Liang , G. R. Liao , X. T. Liao , D. Lin , B. J. Liu , C. L. Liu , C. X. Liu , F. H. Liu , Fang Liu , Feng Liu , H. Liu , H. B. Liu , H. H. Liu , H. M. Liu , H. W. Liu , J. P. Liu , K. Liu , K. Y. Liu , Kai Liu , P. L. Liu , Q. Liu , S. B. Liu , X. Liu , Y. B. Liu , Z. A. Liu , Zhiqiang Liu , Zhiqing Liu , H. Loehner , G. R. Lu , H. J. Lu , J. G. Lu , Q. W. Lu , X. R. Lu , Y. P. Lu , C. L. Luo , M. X. Luo , T. Luo , X. L. Luo , M. Lv , C. L. Ma , F. C. Ma , H. L. Ma , Q. M. Ma , S. Ma , T. Ma , X. Y. Ma , F. E. Maas , M. Maggiora , Q. A. Malik , Y. J. Mao , Z. P. Mao , J. G. Messchendorp , J. Min , T. J. Min , R. E. Mitchell , X. H. Mo , C. Morales Morales , N. Yu. Muchnoi , H. Muramatsu , Y. Nefedov , C. Nicholson , I. B. Nikolaev , Z. Ning , S. L. Olsen , Q. Ouyang , S. Pacetti , J. W. Park , M. Pelizaeus , H. P. Peng , K. Peters , J. L. Ping , R. G. Ping , R. Poling , E. Prencipe , M. Qi , S. Qian , C. F. Qiao , L. Q. Qin , X. S. Qin , Y. Qin , Z. H. Qin , J. F. Qiu , K. H. Rashid , G. Rong , X. D. Ruan , A. Sarantsev , B. D. Schaefer , M. Shao , C. P. Shen , X. Y. Shen , H. Y. Sheng , M. R. Shepherd , X. Y. Song , S. Spataro , B. Spruck , D. H. Sun , G. X. Sun , J. F. Sun , S. S. Sun , Y. J. Sun , Y. Z. Sun , Z. J. Sun , Z. T. Sun , C. J. Tang , X. Tang , I. Tapan , E. H. Thorndike , D. Toth , M. Ullrich , G. S. Varner , B. Q. Wang , D. Wang , D. Y. Wang , K. Wang , L. L. Wang , L. S. Wang , M. Wang , P. Wang , P. L. Wang , Q. J. Wang , S. G. Wang , X. F. Wang , X. L. Wang , Y. F. Wang , Z. Wang , Z. G. Wang , Z. Y. Wang , D. H. Wei , J. B. Wei , P. Weidenkaff , Q. G. Wen , S. P. Wen , M. Werner , U. Wiedner , L. H. Wu , N. Wu , S. X. Wu , W. Wu , Z. Wu , L. G. Xia , Z. J. Xiao , Y. G. Xie , Q. L. Xiu , G. F. Xu , G. M. Xu , Q. J. Xu , Q. N. Xu , X. P. Xu , Z. R. Xu , F. Xue , Z. Xue , L. Yan , W. B. Yan , Y. H. Yan , H. X. Yang , Y. Yang , Y. X. Yang , H. Ye , M. Ye , M. H. Ye , B. X. Yu , C. X. Yu , H. W. Yu , J. S. Yu , S. P. Yu , C. Z. Yuan , Y. Yuan , A. A. Zafar , A. Zallo , Y. Zeng , B. X. Zhang , B. Y. Zhang , C. Zhang , C. C. Zhang , D. H. Zhang , H. H. Zhang , H. Y. Zhang , J. Q. Zhang , J. W. Zhang , J. Y. Zhang , J. Z. Zhang , R. Zhang , S. H. Zhang , X. J. Zhang , X. Y. Zhang , Y. Zhang , Y. H. Zhang , Z. P. Zhang , Z. Y. Zhang , Zhenghao Zhang , G. Zhao , H. S. Zhao , J. W. Zhao , K. X. Zhao , Lei Zhao , Ling Zhao , M. G. Zhao , Q. Zhao , Q. Z. Zhao , S. J. Zhao , T. C. Zhao , Y. B. Zhao , Z. G. Zhao , A. Zhemchugov , B. Zheng , J. P. Zheng , Y. H. Zheng , B. Zhong , Z. Zhong , L. Zhou , X. K. Zhou , X. R. Zhou , C. Zhu , K. Zhu , K. J. Zhu , S. H. Zhu , X. L. Zhu , Y. C. Zhu , Y. M. Zhu , Y. S. Zhu , Z. A. Zhu , J. Zhuang , B. S. Zou , J. H. Zou

It is shown that, in the bound state picture, the $\Lambda_c(2593) \to\Lambda_c\gamma$ and $\Lambda_c(2625)\to\Lambda_c\gamma$ decays are severely suppressed. On the other hand, for their bottom counterparts, which are predicted to have…

High Energy Physics - Phenomenology · Physics 2008-11-26 Chi-Keung Chow

We study the two-body and three-body charmful baryonic B decays: $\bar B^0\to \Lambda_c\bar p$ and $\bar B\to \Lambda_c \bar p\pi(\rho)$. The factorizable W-exchange contribution to $\bar B^0\to\Lambda_c\bar p$ is negligible. Applying the…

High Energy Physics - Phenomenology · Physics 2014-11-17 Hai-Yang Cheng , Kwei-Chou Yang

We make a systematic investigation on the two-body nonleptonic decays $B_c\rightarrow J/\Psi(\eta_c),M$ by employing the perturbative QCD approach based on $k_T$ factorization, where $M$ is a light pseudoscalar or vector or a heavy charmed…

High Energy Physics - Phenomenology · Physics 2015-01-06 Zhou Rui , Zhi-Tian Zou

We investigate the decays of the excited $(b\bar q)$ mesons as probes of the short-distance structure of the weak $\Delta B=1$ transitions. These states are unstable under the electromagnetic or strong interactions although their widths are…

High Energy Physics - Phenomenology · Physics 2016-04-13 Benjamín Grinstein , Jorge Martin Camalich

Very recently, the LHCb collaboration has observed in the final state $\Lambda_c^+ K^-\pi^+\pi^+$ a resonant structure that is identified as the doubly-charmed baryon $\Xi_{cc}^{++}$. Inspired by this observation, we investigate the weak…

High Energy Physics - Phenomenology · Physics 2017-11-27 Wei Wang , Fu-Sheng Yu , Zhen-Xing Zhao

Motivated by the potential prospects of the $B_{c}^{\ast}$ meson samples at hadron colliders, the bottom-changing $B_{c}^{\ast}$ ${\to}$ ${\psi}(1S,2S)P$, ${\eta}_{c}(1S,2S)P$ weak decays are first studied with the perturbative QCD…

High Energy Physics - Phenomenology · Physics 2017-03-02 Junfeng Sun , Yueling Yang , Na Wang , Jinshu Huang , Qin Chang

The angular distributions of the baryon-antibaryon low-mass enhancements seen in the charmless three-body baryonic B decays B+ -> p pbar K+, B0 -> p pbar Ks, and B0 -> p Lambdabar pi- are reported. A quark fragmentation interpretation is…

High Energy Physics - Experiment · Physics 2019-08-14 M. -Z. Wang

Using a theoretical framework based on the next-to-leading order QCD improved effective Hamiltonian, we have estimated the branching ratios and asymmetry parameters for the two body charmless nonleptonic decay modes of $\Lambda_b$ baryon…

High Energy Physics - Phenomenology · Physics 2011-03-23 R. Mohanta , A. K. Giri , M. P. Khanna