The $1D$, $2D$ $Ξ_{b}$ and $Λ_{b}$ baryons

Yu, Guo-Liang; Wang, Zhi-Gang; Wang, Xiu-Wu

doi:10.48550/arxiv.2109.02217

Cited by 5 publications

(5 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the past decades, the single heavy baryons have been extensively investigated by many theoretical methods/models, including various quark model , the heavy hadron chiral perturbation theory [45][46][47][48][49][50], lattice QCD [51][52][53][54], light cone QCD sum rules [55][56][57][58][59][60][61][62], QCD sum rules [63][64][65][66][67][68][69][70][71][72][73][74][75][76][77][78][79][80][81][82] and relativistic flux tube model [83]. To our knowledge, only Ref.…”

Section: Introductionmentioning

confidence: 99%

Systematic analysis of single heavy baryons $Λ_{Q}$, $Σ_{Q}$ and $Ω_{Q}$

Yu¹,

Li²,

Wang³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

Motivated by great progresses in experiments in searching for the heavy baryons, we systematically analyze the mass spectra and the strong decay behaviors of single heavy baryons ΛQ, ΣQ and ΩQ. The calculations of the mass spectra are carried out in the frame work of Godfrey-Isgur (GI) relativized quark model, where the baryon is regarded as a three-body system of quarks. Our resultsshow that the mass of single heavy baryon with λ-mode is lower than those of the ρ-mode and λ-ρ mixing mode, which indicates that the lowest state is dominated by the λ-mode. Basing on this research, we systematically calculate the mass spectra of the baryons with λ excited mode. With these predicated mass spectra, the Regge trajectories in the (J,M 2 ) plane are constructed, and the slopes, intercepts of the Regge trajectories are obtained by linear fitting. It is found that all available experimental data are well reproduced by model predictions and fit nicely to the constructed Regge trajectories. In order to make a further confirmation about the assignments of the observed baryons, and to provide more valuable infirmations for searching for the model predicted states, we perform a systematic study on the strong decay behaviors of S-wave, P -wave and some D-wave baryons in the 3 P0 model.

show abstract

Section: Introductionmentioning

confidence: 99%

Systematic analysis of single heavy baryons $Λ_{Q}$, $Σ_{Q}$ and $Ω_{Q}$

Yu¹,

Li²,

Wang³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Classification of heavy baryons Following the heavy-quark symmetry, baryons with a heavy quark Q are organised into multiplets according to quantum configurations of the two light quarks [166][167][168][169][170][171][172][173][174][175][176][177][178][179][180][181][182]. The total wave function including flavour (F ), spin (s qq ) and orbital angular momentum (l qq ) must be symmetric for the two light quarks qq to form an antisymmetric state together with their antisymmetric colour configuration.…”

Section: Conventional Hadronsmentioning

confidence: 99%

Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review

Chen¹,

Li²,

Qian³

et al. 2021

Preprint

View full text Add to dashboard Cite

Heavy flavour physics provides excellent opportunities to indirectly search for new physics at very high energy scales and to study hadron properties for deep understanding of the strong interaction. The LHCb experiment has been playing a leading role in the study of heavy flavour physics since the start of the LHC operations about ten years ago, and made a range of high-precision measurements and unexpected discoveries, which may have far-reaching implications on the field of particle physics. This review highlights a selection of the most influential physics results on CP violation, rare decays, and heavy flavour production and spectroscopy obtained by LHCb using the data collected during the first two operation periods of the LHC. The upgrade plan of LHCb and the physics prospects are also briefly discussed.

show abstract

“…The signals consistent with the Λ b (6146) 0 and Λ b (6152) 0 states are confirmed by the CMS Collaboration several months later [18]. The 3-quark structure of these two states were studied by different approaches in the literature [19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Molecular states from $\bar{B}^{(*)}N$ interactions

Jian¹,

Zhu²,

Feng³

et al. 2022

Preprint

View full text Add to dashboard Cite

In 2019, two new structures Λ b (6146) 0 and Λ b (6152) 0 at the invariant mass spectrum of Λ 0 b π + π − observed by the LHCb Collaboration aroused a hot discussion about their inner structure. Although many works studies seem to indicate that these two states are conventional three-quark states, Λ b (6146) 0 and Λ b (6152) 0 might still be BN bound states because the mass of Λ b (6146) 0 and Λ b (6152) 0 are close to the BN threshold. In this work, we perform a systematical investigation of the possible heavy molecular states from the interaction of BN in a oneboson-exchange approach. The interaction of the system considered is described by the t-channel σ, ω, and ρ mesons exchange. By solving the non-relativistic Schrödinger equation with the obtained one-boson-exchange potentials, the BN bound states with different quantum number configurations are searched. Our calculation suggests that recently observed Λ b (6146) 0 can be assigned as a BN molecular state with spin parity J P = 3/2 + , while the F-wave BN molecular explains for Λ b (6152) 0 is disfavored. The calculation also favors the existence of an S -wave BN state that can not be associated with the Λ b (5912) 0 . The results in this work help understand the high wave-bound states and future experimental search for new molecules.

show abstract

The $1D$, $2D$ $Ξ_{b}$ and $Λ_{b}$ baryons

Cited by 5 publications

References 48 publications

Systematic analysis of single heavy baryons $Λ_{Q}$, $Σ_{Q}$ and $Ω_{Q}$

Systematic analysis of single heavy baryons $Λ_{Q}$, $Σ_{Q}$ and $Ω_{Q}$

Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review

Molecular states from $\bar{B}^{(*)}N$ interactions

Contact Info

Product

Resources

About