Production of open-charm pentaquark molecules in decay $B^0\to {\bar{D}}^{0}p\bar{p}$

Abstract

This study investigates the production of open-charm pentaquark molecular states, specifically $N{\bar{D}}^{\ast }$ and $\bar{N}{\bar{D}}^{\ast }$, within the $B^0\to {\bar{D}}^{0}p\bar{p}$ decay. We examine the invariant mass spectra of $p{\bar{D}}^0$ and $\bar{p}{\bar{D}}^0$, incorporating the rescattering process through a quasipotential Bethe-Salpeter equation approach. Our findings suggest the possible identification of the isoscalar $\bar{N}{\bar{D}}^{\ast }$ molecule with $3/2^{+}$ as the antiparticle partner of ${\Lambda }_c(2940)$ in the $\bar{p}{\bar{D}}^0$ mass spectrum. Although a molecular state near the $\bar{N}\bar{D}$ threshold with $1/2^{-}$ exists, its signal is weak, indicating that the $B^0\to {\bar{D}}^{0}p\bar{p}$ decay may not be ideal for its detection. A distinct signal of the isovector $N{\bar{D}}^{\ast }$ molecule with $1/2^{-}$ may appear in the $p{\bar{D}}^0$ invariant mass spectrum, while the signal for the $3/2^{-}$ state remains very weak. We emphasize the importance of the three-body decay of the bottom meson as a valuable method for studying open-charm molecules and advocate for increased attention and more precise experimental measurements of the $B^0\to {\bar{D}}^{0}p\bar{p}$ decay.

arXiv comment11 pages, 6 figures, published version

References in corpus (40)

• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• Observation of a narrow charmonium-like state in exclusive B+ -> K+ pi+pi- J/psi decays
• Phenomenology of Heavy Meson Chiral Lagrangians
• Threshold cusps and triangle singularities in hadronic reactions
• Low lying axial-vector mesons as dynamically generated resonances
• Strong Decays of Excited Heavy Mesons In Chiral Perturbation Theory
• Strong LHCb evidence supporting the existence of the hidden-charm molecular pentaquarks
• X(3872) and Other Possible Heavy Molecular States
• Coupled-channel study of crypto-exotic baryons with charm
• Charming penguins in B => K* pi, K (rho,omega,phi) decays
• Coupled-channel dynamics in the reactions piN --> piN, etaN, KLambda, KSigma
• Chiral Lagrangians for Radiative Decays of Heavy Hadrons
• Study of $P_c(4457)$, $P_c(4440)$, and $P_c(4312)$ in a quasipotential Bethe-Salpeter equation approach
• Covariant spectator theory of np scattering: Phase shifts obtained from precision fits to data below 350 MeV
• Observation of a Charmed Baryon Decaying to D0 p at a Mass Near 2.94 GeV/c2
• The s-wave charmed baryon resonances from a coupled-channel approach with heavy quark symmetry
• Observation of an Isotriplet of Excited Charmed Baryons Decaying to ${\Lambda }_c^{+}\pi$
• Experimental Constraints on the Spin and Parity of the Lambda_c(2880)
• Strong two-body decays of the Lambdac(2940)+ in a hadronic molecule picture
• Study of the $D^{0}p$ amplitude in ${\Lambda }_b^0\to D^{0}p{\pi }^{-}$ decays
• ${\Lambda }_c^{+}(2940)$: A Possible Molecular State?
• Radiative decay of Lambdac(2940)+ in a hadronic molecule picture
• Dynamically generated open charmed baryons beyond the zero range approximation
• Dynamically generated $J^P=1/2^{-}(3/2^{-})$ singly charmed and bottom heavy baryons
• $Z_c(3900)$ as a resonance from the $D{\bar{D}}^{\ast }$ interaction
• Quark model description of the Λ_c(2940)^+ as a molecular D^*N state and the possible existence of the Λ_b(6248)
• Baryon states with open charm in the extended local hidden gauge approach
• The observed charmed hadron ${\Lambda }_c(2940{)}^{+}$ and the $D^{\ast }N$ interaction
• Dynamical coupled-channels study of pi N --> pi pi N reactions
• $S$-wave $D^{(\ast )}N$ molecular states: ${\Sigma }_c(2800)$ and ${\Lambda }_c(2940{)}^{+}$?
• The meson-exchange model for the $\Lambda \bar{\Lambda }$ interaction
• $D^{(\ast )}N$ interaction and the structure of ${\Sigma }_c(2800)$ and ${\Lambda }_c(2940)$ in chiral effective field theory
• $Z_c(3900)/Z_c(3885)$ as a virtual state from $\pi J/\psi -{\bar{D}}^{\ast }D$ interaction
• Production of charmed baryon ${\Lambda }_c(2940{)}^{+}$ at PANDA
• The singly-charmed pentaquark molecular states via the QCD sum rules
• Evidence of a new excited charmed baryon decaying to ${\Sigma }_c(2455{)}^{0,++}{\pi }^{\pm }$
• Systematical study of ${\Omega }_c$-like molecular states from interactions ${\Xi }_c^{{(}^{\prime },\ast )}{\bar{K}}^{(\ast )}$ and ${\Xi }^{(\ast )}{D}^{(\ast )}$
• Possible molecular states from the $N\Delta$ interaction
• Possible charmed-strange molecular dibaryons
• Possible molecular dibaryons with $csssqq$ quarks and their baryon-antibaryon partners

Cited by in corpus (1)

• Role of ${\Sigma }^{\ast }(1/2^{-})$ baryons in ${\Lambda }_c\to \Lambda {\pi }^{+}{\pi }^{+}{\pi }^{-}$ decay