$X_J(2900)$ states in a hot hadronic medium

Abstract

In this work we investigate the hadronic effects on the $X_{J=0,1}(2900)$ states in heavy-ion collisions. We make use of Effective Lagrangians to estimate the cross sections and their thermal averages of the processes $X_J\pi \to {\bar{D}}^{\ast }K,K^{\ast }\bar{D}$, as well as those of the corresponding inverse processes, considering also the possibility of different isospin assignments ($I=0,1$). We complete the analysis by solving the rate equation to follow the time evolution of the $X_J(2900)$ multiplicities and determine how they are affected by the considered reactions during the expansion of the hadronic matter. We also perform a comparison of the $X_J(2900)$ abundances considering them as hadronic molecular states ($J=0$ as a $S$-wave and $J=1$ as a $P$-wave) and tetraquark states at kinetic freeze-out.

21 pages; 8 figures

References in corpus (10)

• Amplitude analysis of the $B^{+}\to D^{+}{D}^{-}{K}^{+}$ decay
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Cited by in corpus (15)

• Hadronic molecules in B decays
• Mass spectrum and strong decays of tetraquark $\bar{c}\bar{s}qq$ states
• How to understand the $X(2900)$?
• Multiplicity of the doubly charmed state $T_{cc}^{+}$ in heavy-ion collisions
• The $\mathbf{sQ}\bar{\mathbf{q}}\bar{\mathbf{q}}$ $(\mathbf{q}=\mathbf{u},\mathbf{d};\mathbf{Q}=\mathbf{c},\mathbf{b})$ tetraquarks in the chiral quark model
• On the structures of new scalar resonances $T_{cs0}^a(2900{)}^{++}$ and $T_{cs0}^a(2900{)}^0$
• Vector resonance $X_1(2900)$ and its structure
• Modeling the resonance $T_{cs0}^a(2900{)}^{++}$ as a hadronic molecule $D^{\ast +}{K}^{\ast +}$
• Magnetic moment of the $X_1(2900)$ state in the diquark-antidiquark picture
• Searching for $X_0(2900)$ and $X_1(2900)$ through the kaon induced reactions
• Is the resonance $X_0(2900)$ a ground-state or radially excited scalar tetraquark $[ud][\overline{c}\overline{s}]$?
• The $D^{\ast }/D$ ratio in heavy ion collisions
• Interaction of exotic states in a hadronic medium: the $Z_c(3900)$ case
• Evolution of charm-meson ratios in an expanding hadron gas
• Interactions of the deuteron with a hadronic medium