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Autor:
Giron, Jesse F., Lebed, Richard F.
We apply the dynamical diquark model to predict the spectrum of hidden-charm pentaquark states in both unflavored and open-strange sectors. Using only Hamiltonian parameters introduced in the tetraquark $S$- and $P$-wave multiplets, the model natural
Externí odkaz:
http://arxiv.org/abs/2110.05557
Publikováno v:
Phys. Rev. D 104, 054001 (2021)
The observation by BESIII and LHCb of states with hidden charm and open strangeness ($c\bar c q\bar s$) presents new opportunities for the development of a global model of heavy-quark exotics. Here we extend the dynamical diquark model to encompass s
Externí odkaz:
http://arxiv.org/abs/2106.05883
Publikováno v:
Phys. Rev. D 103, 094024 (2021)
Using the dynamical diquark model, we calculate the electric-dipole radiative decay widths to $X(3872)$ of the lightest negative-parity exotic candidates, including the four $I=0$, $J^{PC} \! = \! 1^{--}$ ("$Y$") states. The $O$(100--1000 keV) values
Externí odkaz:
http://arxiv.org/abs/2102.12591
We investigate the two-dimensional ($2$D) inviscid compressible flow equations in axisymmetric coordinates, constrained by an ideal gas equation of state (EOS). Beginning with the assumption that the $2$D velocity field is space-time separable and li
Externí odkaz:
http://arxiv.org/abs/2010.01230
Autor:
Giron, Jesse F., Lebed, Richard F.
Publikováno v:
Phys. Rev. D 102, 074003 (2020)
We develop the spectroscopy of $c\bar c c\bar c$ and other all-heavy tetraquark states in the dynamical diquark model. In the most minimal form of the model (e.g., each diquark appears only in the color-triplet combination; the non-orbital spin coupl
Externí odkaz:
http://arxiv.org/abs/2008.01631
Autor:
Giron, Jesse F., Lebed, Richard F.
Publikováno v:
Phys. Rev. D 102, 014036 (2020)
The lightest hidden-bottom tetraquarks in the dynamical diquark model fill an $S$-wave multiplet consisting of 12 isomultiplets. We predict their masses and dominant bottomonium decay channels using a simple 3-parameter Hamiltonian that captures the
Externí odkaz:
http://arxiv.org/abs/2005.07100
Autor:
Giron, Jesse F., Lebed, Richard F.
Publikováno v:
Phys. Rev. D 101, 074032 (2020)
We study the fine structure in the spectrum of known and predicted negative-parity hidden-charm exotic meson states, which comprise the lowest $P$-wave multiplet in the dynamical diquark model. Starting with a form previously shown to successfully de
Externí odkaz:
http://arxiv.org/abs/2003.02802
Publikováno v:
Phys. Rev. E 101, 053101 (2020)
We investigate the inviscid compressible flow (Euler) equations constrained by an "isentropic" equation of state (EOS), whose functional form in pressure is an arbitrary function of density alone. Under the aforementioned condition, we interrogate us
Externí odkaz:
http://arxiv.org/abs/1911.08069
We incorporate fine-structure corrections into the dynamical diquark model of multiquark exotic hadrons. These improvements include effects due to finite diquark size, spin-spin couplings within the diquarks, and most significantly, isospin-dependent
Externí odkaz:
http://arxiv.org/abs/1907.08546