Decays of Negative-Parity Baryons in a Quark Model

1968 ◽  
Vol 175 (5) ◽  
pp. 2027-2029 ◽  
Author(s):  
D. R. Divgi
Keyword(s):  
Quark Model ◽  
Negative Parity

scholarly journals Bottom (70,1-) baryon multiplet

2020 ◽  
Vol 164 ◽  
pp. 01008
Author(s):  
Elena Matskevich
Keyword(s):  
Dispersion Relation ◽  
Quark Model ◽  
Approximate Solutions ◽  
Negative Parity ◽  
Relativistic Quark Model ◽  
Systems Of Equations ◽  
The Masses ◽  
Bottom Baryon

The aim of this paper is to derive systems of equations for the amplitudes for the case of negative parity (70,1-) bottom nonstrange baryons and to calculate the masses of these particles. In order to calculate masses of (70,1-) bottom baryons we use the relativistic quark model. The relativistic three-quark equations of the (70,1-) bottom baryon multiplet are derived in the framework of the dispersion relation technique. The relativistic three-quark equations of the (70,1-) bottom baryon multiplet are derived. The approximate solutions of these equations using the method based on the extraction of leading singularities of the amplitude are obtained. The masses of 21 baryons are predicted.

scholarly journals Properties of Doubly Heavy Baryons

Universe ◽  
2021 ◽  
Vol 7 (9) ◽  
pp. 337
Author(s):  
Zalak Shah ◽  
Amee Kakadiya ◽  
Keval Gandhi ◽  
Ajay Kumar Rai
Keyword(s):  
Excited State ◽  
Quark Model ◽  
Ground State ◽  
Mass Spectra ◽  
Constituent Quark ◽  
Magnetic Moments ◽  
Constituent Quark Model ◽  
Negative Parity ◽  
Heavy Baryons ◽  
Model Scheme

We revisited the mass spectra of the Ξcc++ baryon with positive and negative parity states using Hypercentral Constituent Quark Model Scheme with Coloumb plus screened potential. The ground state of the baryon has been determined by the LHCb experiment, and the anticipated excited state masses of the baryon have been compared with several theoretical methodologies. The transition magnetic moments of all heavy baryons Ξcc++, Ξcc+, Ωcc+, Ξbb0, Ξbb−, Ωbb−, Ξbc+, Ξbc0, Ωbc0 are also calculated and their values are −1.013 μN, 1.048 μN, 0.961 μN, −1.69 μN, 0.73 μN, 0.48 μN, −1.39 μN, 0.94 μN and 0.710 μN, respectively.

scholarly journals Ωcc resonances with negative parity in the chiral constituent quark model

2021 ◽  
Vol 104 (9) ◽  
Author(s):  
Jin-Bao Wang ◽  
Gang Li ◽  
Cheng-Rong Deng ◽  
Chun-Sheng An ◽  
Ju-Jun Xie
Keyword(s):  
Quark Model ◽  
Constituent Quark ◽  
Constituent Quark Model ◽  
Negative Parity

scholarly journals Investigation of $$\varXi _c^0$$ in a chiral quark model

2021 ◽  
Vol 81 (4) ◽  
Author(s):  
Xiaohuang Hu ◽  
Yue Tan ◽  
Jialun Ping
Keyword(s):  
Quark Model ◽  
Expansion Method ◽  
Invariant Mass Spectrum ◽  
Negative Parity ◽  
Lhcb Collaboration ◽  
Chiral Quark Model ◽  
Quantum Numbers ◽  
New States ◽  
Quark Structure ◽  
The Masses

AbstractRecently, three new states of $$\varXi _c^0$$ Ξ c 0 were observed in the invariant mass spectrum of $$\varLambda ^+_cK^-$$ Λ c + K - by LHCb collaboration. In this work, we use a chiral quark model to investigate these three exited states with the help of Gaussian expansion method both in three-quark structure and in five-quark structure with all possible quantum numbers $$IJ^P=\frac{1}{2}(\frac{1}{2})^-$$ I J P = 1 2 ( 1 2 ) - , $$\frac{1}{2}(\frac{3}{2})^-$$ 1 2 ( 3 2 ) - , $$\frac{1}{2}(\frac{5}{2})^-$$ 1 2 ( 5 2 ) - , $$\frac{3}{2}(\frac{1}{2})^-$$ 3 2 ( 1 2 ) - , $$\frac{3}{2}(\frac{3}{2})^-$$ 3 2 ( 3 2 ) - and $$\frac{3}{2}(\frac{5}{2})^-$$ 3 2 ( 5 2 ) - . The calculations shows that the masses of 2S and 1D states of $$\varXi _c$$ Ξ c are comparable to experimental results; In addition, the resonance states of five-quark configuration are possible candidates of these new states with negative parity by using the real scaling method and their decay width is also given.

Sign in / Sign up

Export Citation Format

Share Document