Interpretation of the new 
                $$\Omega _c^{0}$$
                
                    
                                    
                        
                            Ω
                            c
                            0
                        
                    
                
             states via their mass and width

Agaev, S. S.; Azizi, K.; Sundu, H.

doi:10.1140/epjc/s10052-017-4953-z

Cited by 58 publications

(13 citation statements)

References 42 publications

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“…Since the mass difference between Ω c (3000) and Ω c (3090) is around 0.1 GeV, isolating the contribution of each baryon is impossible while their contributions should be taken into account simultaneously. For these reasons our results on decay widths are different than those one predicted in [11]. From experimental data on the width of Ω c are [16]:…”

Section: Numerical Analysiscontrasting

confidence: 83%

“…Another set of quantum number assignments, namely 3 + is given in [3]. In [10], it is obtained that the prediction on mass supports assigning Ω c (3000) as J P = 1 2 − , Ω c (3090) as J P = 3 Note that the strong coupling constants of Ω c → Ξ + c K − decays within the same framework are studied in [11], and in chiral quark model [12] respectively. However, the analysis performed in [11] is incomplete.…”

Section: Introductionmentioning

confidence: 97%

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Reanalysis of Ωc→Ξc+K- Decay in QCD

Aliev

Bilmis

Savcı

2018

Advances in High Energy Physics

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The strong coupling constants of newly observed Ω 0 c baryons with spin J = 1 2 and J = 3 2 decaying into Ξ + c K − are estimated within light cone QCD sum rules. The calculations are performed within two different scenarios on quantum numbers of Ω c baryons: a) all newly observed Ω c baryons are negative parity baryons, i.e., the Ω c (3000), Ω c (3050), Ω c (3066), and Ω c (3090) have quantum numbers J P = 1 2 − and J P = 3 2 − states respectively; b) the states Ω c (3000) and Ω c (3050) have quantum numbers J P = 1 2 − and J P = 1 2 + , while the states Ω c (3066) and Ω c (3090) have the quantum numbers J P = 3 2 − and J P = 3 2 + , respectively. By using the obtained results on the coupling constants, we calculate the decay widths of the corresponding decays. The results on decay widths are compared with the experimental data of LHC Collaboration. We found outthat the predictions on decay widths within these scenarios are considerably different from the experimental data, i.e., both considered scenarios are ruled out.

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Section: Numerical Analysiscontrasting

confidence: 83%

Section: Introductionmentioning

confidence: 97%

Reanalysis of Ωc→Ξc+K- Decay in QCD

Aliev

Bilmis

Savcı

2018

Advances in High Energy Physics

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“…The possibility that must be checked is that not all of the Ω c states in Table 1 are relative P-wave excitations between ss diquark and the charmed quark [5,23,24,41,42]. For instance, two 2S wave candidates are predicted for the c(ss) at masses 3088 MeV (J P = 1/2 + ) and 3123 MeV(J P = 3/2 + ) in Ref.…”

Section: Alternative Possibilities Examinedmentioning

confidence: 99%

“…( 34) is relatively small. (ii) Static approximation of quark-diquark potential V + S, which is valid in principle only for heavy quarkonia (QQ), has ignored rotation of QCD string when L = 0 [42,48,49]. In orbitally-excited state, the rotation of QCD string can change the static quark-diquark potential V + S in Eq.…”

Section: Spin-couplings In Relativized Quark Modelmentioning

confidence: 99%

A mixing coupling scheme for spectra of singly heavy baryons with spin-1 diquarks in P-waves

2021

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A new scheme of state classification is proposed and applied to analyze masses of the heavy baryons $$\varOmega _{Q}$$ Ω Q , $$\varSigma _{Q}$$ Σ Q and $$\varXi _{Q}^{\prime }$$ Ξ Q ′ in P-waves. The results confirm all excited $$\varOmega _{c}$$ Ω c and $$\varOmega _{b}$$ Ω b baryons reported recently by LHCb to be bound states of a P-wave ss-diquark and a respective charm or bottom quark, and thereby predict Regge trajectories for more excited $$\varOmega _{c}$$ Ω c and $$\varOmega _{b}$$ Ω b baryons. We suggest one excited $$J^{P}=5/2^{-}$$ J P = 5 / 2 - $$\varOmega _{b}$$ Ω b state to be unseen by LHCb around 6352 MeV, and predict P-wave masses of all spin-partners of the odd-parity baryons $$\varSigma _{c}(2800)/\varXi _{c}^{\prime }(2942)$$ Σ c ( 2800 ) / Ξ c ′ ( 2942 ) and $$\varSigma _{b}(6097)$$ Σ b ( 6097 ) /$$\varXi _{b}^{\prime }(6227)$$ Ξ b ′ ( 6227 ) . A computation is further given in a relativized potential quark models to explain matched values of spin couplings of all considered baryons, by which a scaling law for these spin couplings is discussed.

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“…Other methods have also been employed to study these states, as QCD sum rules in Refs. [21][22][23][24][25][26][27] and lattice QCD in Ref. [28].…”

Section: Introductionmentioning

confidence: 99%

Ωb−→(Ξc+K−)π−
Debastiani
¹
,
Dias
²
,
Wu
³

et al. 2018
Phys. Rev. D
12
2
1
0
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We study the weak decay Ω − b → ðΞ þ c K − Þπ − , in view of the narrow Ω c states recently measured by the LHCb Collaboration and later confirmed by the Belle Collaboration. The Ω c ð3050Þ and Ω c ð3090Þ are described as meson-baryon molecular states, using an extension of the local hidden gauge approach in coupled channels. We investigate the ΞD, Ξ cK , and Ξ 0 cK invariant mass distributions making predictions that could be confronted with future experiments, providing useful information that could help determine the quantum numbers and nature of these states.

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Interpretation of the new $$\Omega _c^{0}$$ Ω c 0 states via their mass and width

Cited by 58 publications

References 42 publications

Reanalysis of Ωc→Ξc+K- Decay in QCD

Reanalysis of Ωc→Ξc+K- Decay in QCD

A mixing coupling scheme for spectra of singly heavy baryons with spin-1 diquarks in P-waves

Ωb−→(Ξc+K−)π−
Debastiani
¹
,
Dias
²
,
Wu
³

et al. 2018
Phys. Rev. D
12
2
1
0
View full text Add to dashboard Cite

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Interpretation of the new $$\Omega _c^{0}$$ Ω c 0 states via their mass and width

Cited by 58 publications

References 42 publications

Reanalysis of Ωc→Ξc+K- Decay in QCD

Reanalysis of Ωc→Ξc+K- Decay in QCD

A mixing coupling scheme for spectra of singly heavy baryons with spin-1 diquarks in P-waves

Ωb−→(Ξc+K−)π−Debastiani1, Dias2, Wu3 et al. 2018Phys. Rev. D12210View full textAdd to dashboardCite

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Ωb−→(Ξc+K−)π−
Debastiani
¹
,
Dias
²
,
Wu
³

et al. 2018
Phys. Rev. D
12
2
1
0
View full text Add to dashboard Cite