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Heavy quark spin selection rule and the properties of the X(3872)
High Energy Physics - Phenomenology · Submitted 27 Aug 2004
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim It is argued that in these properties should dominate the states with the total spin of the charmed quark-antiquark pair equal to one.
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The abstract, sentence by sentence
The properties of the resonance X(3872) are discussed under the assumption that this resonance is dominantly a `molecular' $J^{PC}=1^{++}$ state of neutral $D$ and $D^*$ mesons. It is argued that in these properties should dominate the states with the total spin of the charmed quark-antiquark pair equal to one. As a practical application of this observation the ratio of the rates of the decays $X \to \pi^0 \chi_{cJ}$ for different $J$ is predicted. It is also pointed out that the total rate of these decays is likely to be comparable to that of the observed transitions $X \to \pi^+ \pi^- J\psi$ and $X \to \pi^+ \pi^- \pi^0 J\psi$. The decays of the X into light hadrons and its production in hadronic processes are also briefly discussed.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | The properties of the resonance X(3872) are discussed under the assumption that this resonance is dominantly a `molecular' $J^{PC}=1^{++}$ state of neutral $D$ and $D^*$ mesons. | background 0.47 | 0.24 | 0.13 | hedged possibility 0.61 |
| s1 | It is argued that in these properties should dominate the states with the total spin of the charmed quark-antiquark pair equal to one. | interpretation 0.39 | 0.54 | 0.58 | hedged possibility 0.43 |
| s2 | As a practical application of this observation the ratio of the rates of the decays $X \to \pi^0 \chi_{cJ}$ for different $J$ is predicted. | result 0.67 | 0.82 | 0.17 | asserted 0.81 |
| s3 | It is also pointed out that the total rate of these decays is likely to be comparable to that of the observed transitions $X \to \pi^+ \pi^- J\psi$ and $X \to \pi^+ \pi^- \pi^0 J\psi$. | result 0.86 | 0.48 | 0.09 | hedged possibility 1.00 |
| s4 | The decays of the X into light hadrons and its production in hadronic processes are also briefly discussed. | contribution 0.95 | 0.39 | 0.03 | unclear 0.54 |
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The paper
Original abstract
The properties of the resonance X(3872) are discussed under the assumption that this resonance is dominantly a `molecular' $J^{PC}=1^{++}$ state of neutral $D$ and $D^*$ mesons. It is argued that in these properties should dominate the states with the total spin of the charmed quark-antiquark pair equal to one. As a practical application of this observation the ratio of the rates of the decays $X \to \pi^0 \chi_{cJ}$ for different $J$ is predicted. It is also pointed out that the total rate of these decays is likely to be comparable to that of the observed transitions $X \to \pi^+ \pi^- J\psi$ and $X \to \pi^+ \pi^- \pi^0 J\psi$. The decays of the X into light hadrons and its production in hadronic processes are also briefly discussed.
Human review
References
How the literature uses it
12 arXiv papers cite this in 13 sentences
Papers citing it · 6 sentences without a confident label
Uses its method or tool 1 paper
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In [ref] , Eq. [ref] is used to estimate the ratio between the widths $Γ(X→π^0χ_c1)$ and $Γ(X→π^+π^-)$,
Multiquark Resonances · Consequences of the Heavy Quark Spin Symmetry · 0.86
Cites it as background 5 papers
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Later (see e.g. discussions in Refs. [ref] ) other additional configurations such as a charmonium or even other meson pair components were discussed in addition to $+$ its charge conjugate (c.c.) (Here and in the following we use the convention that $$ does not change sign under charge conjugation.
J/psi gamma and psi(2S) gamma decay modes of the X(3872) · Introduction · 0.94
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The most popular view about the nature of this resonance is that it is made of $D D̅^*$ [ref] , a recent review can be seen in [ref] .
Isospin breaking effects in the X(3872) resonance · Introduction · 0.83
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Despite the other possibilities including a molecular state consisting of a $D$ and $D̅^*$ [ref] , tetraquark [ref] , $cc̅-DD̅^*$ mixing [ref] or radial excitation of the $P-$wave charmonium [ref] , the structure of the $X(3872)$ is not yet fully understood.
Radiative decay of the $X(3872)$ as a mixed molecule-charmonium state in effective field theory · Introduction · 0.99
Discussion
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