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相关论文: Excited Charmed Baryon Decays and Their Implicatio…

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We present preliminary results on the light, charmed and bottom baryon spectra using overlap valence quarks on the background of 2+1+1 flavours HISQ gauge configurations of the MILC collaboration. These calculations are performed on three…

高能物理 - 格点 · 物理学 2018-04-18 Sourav Mondal , M. Padmanath , Nilmani Mathur

A comprehensive review of weak decays of charmed hadrons ($D^{0/+}$, $D^+_s$ and $\Lambda^+_c$) based on analyses of the threshold data from $e^+e^-$ annihilation in the BESIII experiment is presented. Current experimental challenges and…

高能物理 - 实验 · 物理学 2021-12-16 Hai-Bo Li , Xiao-Rui Lyu

In this study, we investigate the nonleptonic decays of the charmed-baryon Xi^ {0} _ c induced by the c -> u(d\bar{d})/(s\bar{s}) transition. Utilizing the factorization assumption, we decompose the decay amplitudes in terms of transition…

高能物理 - 唯象学 · 物理学 2023-08-15 Hang Liu , Chang Yang

I review some recent results on hadronic decays of charmed mesons. These decays illuminate a wide range of physics, including the absolute normalizations of b and c decays, the understanding of D^0 mixing, the coupling of heavy mesons to…

高能物理 - 实验 · 物理学 2008-10-21 P. U. E. Onyisi

We study the productions of charmed baryons ${\bar \Lambda}_c^- \Lambda_c^+$, ${\bar \Lambda}_c^- \Sigma_c^+$, and ${\bar \Sigma}^- \Sigma_c^+$ in the antiproton-proton collisions within an effective Lagrangian model that has only the…

高能物理 - 唯象学 · 物理学 2018-01-03 R. Shyam

The decay of $\Lambda_b\to\Sigma_c^{(*)}\pi l{\bar\nu}$ processes are calculated in the framework of heavy baryon chiral perturbation theory with help of the $1/N_c$ expansion. The decay rate distributions over $v\cdot v^{\prime}$ where $v$…

高能物理 - 唯象学 · 物理学 2009-10-31 Jong-Phil Lee , Chun Liu , H. S. Song

We observe a signal for the doubly charmed baryon Xi_cc^+ in the charged decay mode Xi_cc^+ --> Lambda_c^+ K- pi+ in data from SELEX, the charm hadro-production experiment at Fermilab. We observe an excess of 15.9 events over an expected…

高能物理 - 实验 · 物理学 2008-11-26 The SELEX Collaboration , M. Mattson

We construct an effective Lagrangian which describes interactions of heavy and light hadrons utilizing the chiral flavor symmetry for light quarks and heavy quark symmetry. For both light and heavy sector we include pseudo scalars, vectors…

高能物理 - 唯象学 · 物理学 2007-05-23 N. Kitazawa , T. Kurimoto

We study hadronic molecular states in a coupled system of $J/\psi N - \Lambda_c\bar{D}^{(*)} - \Sigma_c^{(*)}\bar{D}^{(*)}$ in $I(J^P) = \frac{1}{2}(\frac{3}{2}^-)$ channel, using the complex scaling method combined with the Gaussian…

高能物理 - 唯象学 · 物理学 2017-11-22 Yuki Shimizu , Masayasu Harada

We study the two-body anti-triplet charmed baryon decays based on the diagrammatic approach with $SU(3)$ flavor symmetry. We extract the two $W$-exchange effects as $E_{\bf B}$ and $E^\prime$ that contribute to the $\Lambda_c^+ \to \Xi^0…

高能物理 - 唯象学 · 物理学 2020-06-24 H. J. Zhao , Yan-Li Wang , Y. K. Hsiao , Yao Yu

Chiral effective field theory is utilized for extrapolating results on the $\Lambda_c N$ interaction, obtained in lattice QCD at unphysical (large) quark masses, to the physical point. The pion-mass dependence of the components that…

高能物理 - 唯象学 · 物理学 2018-11-22 J. Haidenbauer , G. Krein

We study the temperature and baryon density dependence of the masses of the lightest charmed baryons $\Lambda_c$, $\Sigma_c$ and $\Sigma^*_c$. We also look at the effects of the temperature and baryon density on the binding energies of the…

高能物理 - 唯象学 · 物理学 2018-12-26 T. F. Caramés , C. E. Fontoura , G. Krein , J. Vijande , A. Valcarce

The doubly charmed baryon $\Xi_{cc}^{++}$ was recently observed by LHCb via the decay processes of $\Xi_{cc}^{++}\to \Lambda_c^+ K^-\pi^+\pi^+$ and $\Xi_c^+\pi^+$. These discovery channels were successfully predicted in the framework that…

高能物理 - 唯象学 · 物理学 2021-05-26 Jia-Jie Han , Hua-Yu Jiang , Wei Liu , Zhen-Jun Xiao , Fu-Sheng Yu

Two topics are briefly reviewed in this talk: the decay of flavored hadrons or quarkonium states involving a baryon--antibaryon pair, and the spectroscopy of heavy baryons containing one, two or three heavy quarks. Some prospects for exotic…

高能物理 - 唯象学 · 物理学 2015-05-27 Jean-Marc Richard

In this work, we perform an investigation of possible molecular states composed of two charmed strange baryons from the $\Xi_c^{(',*)}{\Xi}_c^{(',*)}$ interaction, and their hidden-charm hidden-strange partners from the…

高能物理 - 唯象学 · 物理学 2023-08-29 Dan Song , Shu Chen , Shu-Yi Kong , Jun He

The fragmentation fractions of c and b quarks into the weakly decaying charmed hadrons D0, D+, D_s+ and Lambda_c+, and into the charmed vector meson D*+ have been derived from the LEP measurements and averaged. The c quark fragmentation…

高能物理 - 实验 · 物理学 2015-01-23 Leonid Gladilin

We report the recent results of charmed baryon decays, based on the data collected by the Belle experiment at the KEKB collider. This includes the observation of the doubly Cabibbo-suppressed decay $\Lambda_c^+\to\pi^-K^+p$, search for the…

高能物理 - 实验 · 物理学 2019-08-13 Bilas Pal

Using the quark-diquark approximation in the framework of Buchm\" uller-Tye potential model, we investigate the spectroscopy of doubly charmed baryons: $\Xi_{cc}^{++}$ and $\Xi_{cc}^{+}$. Our results include the masses, parameters of radial…

高能物理 - 唯象学 · 物理学 2009-04-28 S. S. Gershtein , V. V. Kiselev , A. K. Likhoded , A. I. Onishchenko

To extract information about polarized gluons in the proton, production of charmed hadrons, in particular, \Lambda_c^+ baryon in pp collisions was studied. We calculated the transverse momentum distribution and the pseudo-rapidity…

高能物理 - 唯象学 · 物理学 2009-11-07 Toshiyuki Morii , Kazumasa Ohkuma

The calculation of muon spectra from the decay of Lambda_c baryons was carried out on the basis of the description of recent data on charmed-baryon production in hadronic interactions. Data are described in the framework of Quark--Gluon…

高能物理 - 唯象学 · 物理学 2010-03-04 O. I. Piskounova , N. V. Nikitin