Hidden-charm pentaquark states through the current algebra: From their productions to decays

Abstract

There may exist seven D( * ) Σ ( * ) c hadronic molecular states. We construct their corresponding interpolating currents, and calculate their masses and decay constants using QCD sum rules. Based on these results, we calculate their relative production rates in Λ 0 b decays through the current algebra, i.e., B(Λ) with Pc and P ′ c two different states. We also study their decay properties through the Fierz rearrangement, and further calculate these ratios in the J/ψp mass spectrum, i.e., B(ΛOur results suggest that the D * Σ * c molecular states of J P = 1/2 − and 3/2 − are possible to be observed in future experiments.

Investigation of $P_{cs}(4459)^0$ pentaquark via its strong decay to $ΛJ/Ψ$

“…Based on their close masses to meson-baryon threshold, they were assigned as meson baryon molecular states in Refs. [6][7][8][9][10][11][12][13][14]. They were interpreted with diquark-diquark-antiquark [15][16][17][18][19][20][21][22][23][24][25][26][27][28] and diquark-triquark [27,29] models.…”

Investigation of hidden-charm double strange pentaquark candidate $P_{css}$ via its mass and strong decays

“…The meson baryon molecular interpretation was also adopted in Refs. [26][27][28][29][30][31][32][33][34][35][36][37][38][39]. Ref.…”

Covalent hadronic molecules induced by shared light quarks

“…We systematically study it using the method of QCD sum rules, and calculate the mass correction ∆M induced by this term. Note that the obtained results can be further applied to study production and decay properties of these hadronic molecular states [64][65][66].…”