scholarly journals Spin- 32 doubly charmed baryon contribution to the magnetic moments of the spin- 12 doubly charmed baryons

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
Hao-Song Li ◽  
Wen-Li Yang
Keyword(s):  
Magnetic Moments ◽  
Charmed Baryons ◽  
Charmed Baryon

scholarly journals Lattice QCD study of the elastic and transition form factors of charmed baryons

2021 ◽  
Vol 36 (23) ◽  
pp. 2130013
Author(s):  
K. U. Can
Keyword(s):  
Lattice Qcd ◽  
Magnetic Moments ◽  
Charm Quark ◽  
Form Factors ◽  
Strong Interactions ◽  
Transition Form ◽  
Charmed Baryons ◽  
Charmed Baryon ◽  
Heavy Hadron ◽  
Helicity Amplitudes

Composite nature of a particle can be probed by electromagnetic interactions and information about their structure is embedded in form factors. Most of the experimental and theoretical efforts on baryon electromagnetic form factors have been focused on nucleon while the data on charmed sector are limited to spectroscopy, and weak and strong decays. Forthcoming experiments with a heavy-hadron physics program at major experimental facilities are expected to provide a wealth of information on charmed baryons, which calls for a better understanding of the heavy-sector dynamics from theoretical grounds. We review the progress in calculating the elastic and transition form factors of charmed baryons in lattice QCD. A collection of static observables, e.g. charge radii, multipole moments, are presented along with the elastic form factors up to [Formula: see text]. As one would expect the charmed baryons are compact in comparison to nucleon and this is due to the presence of valence charm quark(s). The elastic and transition magnetic moments are both suppressed. The lattice results provide predictions for the transition magnetic moments, transition and helicity amplitudes and consequentially the decay widths of some singly and doubly charmed baryons. In general, lattice results are consonant with the qualitative expectations of quark model and heavy-quark symmetry, although there are apparent quantitative differences up to two orders of magnitude in some cases. There are, however, indications that the lattice results can be utilized to improve the model predictions. Nevertheless, discrepancies between the lattice and nonlattice calculations need to be understood better to have a solid insight into the dynamics of the heavy sector. Furthermore, reliably determined charmed baryon observables would be invaluable input to investigate the nature of exotic states, which further emphasizes the importance of rigorous, first-principles calculations to advance our understanding of the dynamics of the heavy quarks and strong interactions.

scholarly journals Charmed baryon decay to a strange baryon plus a pion using QCD sum rules

2019 ◽  
Vol 34 (03n04) ◽  
pp. 1950015 ◽  
Author(s):  
Leonard S. Kisslinger ◽  
Bijit Singha
Keyword(s):  
Sum Rules ◽  
Qcd Sum Rules ◽  
Charmed Baryons ◽  
Charmed Baryon ◽  
Strange Baryon ◽  
Weak Decays ◽  
Baryon Decay

This is an extension of the prediction of strange baryon decays to the decays of charmed baryons using QCD sum rules. Using QCD sum rules, we estimate the decay [Formula: see text]. Although some weak decays of the [Formula: see text] have been measured, since it is difficult to measure [Formula: see text] our estimates should be useful for future experiments.

Magnetic moments of JP = 1/2+ baryons in broken SU(8)

1981 ◽  
Vol 59 (4) ◽  
pp. 506-510 ◽  
Author(s):  
Ramesh C. Verma
Keyword(s):  
Symmetry Breaking ◽  
Recent Experiment ◽  
Magnetic Moments ◽  
Transition Moment ◽  
Isospin Breaking ◽  
Charmed Baryon

Symmetry breaking effects on the magnetic moments of baryons are studied in the SU(8) framework. We obtain a low value of μ(Σ+) in agreement with a recent experiment. The transition moment [Formula: see text] seems to require isospin breaking, which also improves the overall fit to magnetic moments. Charmed baryon magnetic moments are calculated with and without isospin breaking.

scholarly journals Magnetic moments of spin 12[sup +] and spin 32[sup +] charmed baryons

2010 ◽  
Author(s):  
Harleen Dahiya ◽  
Neetika Sharma ◽  
P. K. Chatley ◽  
Volker Crede ◽  
Paul Eugenio ◽  
...  
Keyword(s):  
Magnetic Moments ◽  
Charmed Baryons

scholarly journals Recent developments in charmed baryon spectroscopy

2018 ◽  
Vol 191 ◽  
pp. 02013
Author(s):  
Elena Solovieva
Keyword(s):  
Quark Model ◽  
Excited States ◽  
Energy Levels ◽  
Ground States ◽  
Charmed Baryons ◽  
Charmed Baryon ◽  
Recent Developments ◽  
Baryon Spectroscopy

An overview of recent developments in charmed baryon spectroscopy is given. The classification of charmed baryons is presented, a quark model for ground states is briefly described, and the energy levels of excited states are analyzed.

scholarly journals Heavy baryon production with an instanton interaction

2020 ◽  
Vol 2020 (5) ◽  
Author(s):  
Sang-In Shim ◽  
Atsushi Hosaka ◽  
Hyun-Chul Kim
Keyword(s):  
Reaction Mechanism ◽  
Quark Model ◽  
Heavy Baryon ◽  
Wave Functions ◽  
Baryon Production ◽  
Production Rates ◽  
Charmed Baryons ◽  
Charmed Baryon ◽  
Strange Baryons ◽  
Large Production

Abstract We propose a new reaction mechanism for the study of strange and charmed baryon production. In this mechanism we consider the correlation of two quarks in baryons, so it can be called the two-quark process. As in the previously studied one-quark process, we find large production rates for charmed baryons in comparison with strange baryons. Moreover, the new mechanism causes the excitation of both the $\rho$ mode and the $\lambda$ mode. Using the wave functions for baryons from a quark model, we compute the production rates of various baryon states. We find that the production rates reflect the structure of the wave functions that imply the usefulness of the reactions for the study of baryon structures.

SU 3 subalgebras ofSU 4 and generalizedU-spin in a new approach to the magnetic moments of charmed baryons

1979 ◽  
Vol 49 (3) ◽  
pp. 429-446 ◽  
Author(s):  
P. Camiz ◽  
G. Dattoli ◽  
R. Mignani ◽  
D. Prosperi
Keyword(s):  
Magnetic Moments ◽  
Charmed Baryons ◽  
New Approach

scholarly journals CHARMED (70, 1-) BARYON MULTIPLET

2008 ◽  
Vol 17 (04) ◽  
pp. 585-610 ◽  
Author(s):  
S. M. GERASYUTA ◽  
E. E. MATSKEVICH
Keyword(s):  
Experimental Data ◽  
Dispersion Relation ◽  
Approximate Solutions ◽  
Negative Parity ◽  
Relativistic Quark Model ◽  
Charmed Baryons ◽  
Charmed Baryon ◽  
Calculated Mass ◽  
The Masses ◽  
Good Agreement

The masses of negative parity (70, 1-) charmed nonstrange baryons are calculated in the relativistic quark model. The relativistic three-quark equations of the (70, 1-) charmed baryon multiplet are found in the framework of the dispersion relation technique. The approximate solutions of these equations using the method based on the extraction of leading singularities of the amplitude are obtained. The calculated mass values of the (70, 1-) charmed baryons are in good agreement with the experimental data.

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