High Energy Physics - Phenomenology · arXiv:hep-ph/0504197 v1 · submitted 21 Apr 2005
The c̄c purity of ψ(3770) and ψ′ challenged
The paper says
“It is suggested that the resonance ψ(3770) may contain a sizeable ($O(10%)$ in terms of the probability weight factor) four-quark component with the up- and down- quarks and antiquarks in addition to the cc̄ pair, which component in itself has a substantial part with the isospin I=1.”
from the abstract · picked out as the main claim by a classifier
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The paper
Abstract
It is suggested that the resonance ψ(3770) may contain a sizeable ($O(10%)$ in terms of the probability weight factor) four-quark component with the up- and down- quarks and antiquarks in addition to the cc̄ pair, which component in itself has a substantial part with the isospin I=1. Furthermore such four-quark part of the wave function should also affect the properties of the ψ′ charmonium resonance through the ψ(3770)−ψ′ mixing previously considered in the literature. It is argued that an admixture of extra light quark pairs can explain a possible discrepancy between the theoretical expectations and the recent data on the non-DD̄ decay width of the ψ(3770) and the ratio of the yield of charged and neutral D meson pairs in its decays, as well as on the extra rate of the ψ′ direct decay into light hadrons and the rate of the decay ψ′ → π0J/ψ. It is further argued that the suggested four-quark component of the wave function of the ψ(3770) should give rise to a measurable rate of the decays ψ(3770) → ηJ/ψ and ψ(3770) → π0J/ψ.
The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. No sentence in this record was written by a model.
abstract compiled · 2026-09-23 · no language-model review
How the main claim is stated: hedged possibility 1.00
What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.09 · human participants 0.01 · controlled comparison 0.06 · randomized assignment 0.01 · states quantitative result 0.72 · compares with prior results 0.59 · mentions code or data availability 0.01
The abstract, sentence by sentence
This table labels the abstract only (arXiv listing abstract v1). The number is the probability the classifier gave the label.
| Sentence | Role | The authors' own work | States the main conclusion | Strength |
|---|---|---|---|---|
| It is suggested that the resonance $\psi(3770)$ may contain a sizeable ($O(10%)$ in terms of the probability weight factor) four-quark component with the up- and down- quarks and antiquarks in addition to the $c {\bar c}$ pair, which component in itself has a substantial part with the isospin I=1. | contribution 0.83 | 0.19 | 0.63 | hedged possibility 1.00 |
| Furthermore such four-quark part of the wave function should also affect the properties of the $\psi'$ charmonium resonance through the $\psi(3770) - \psi'$ mixing previously considered in the literature. | interpretation 0.78 | 0.13 | 0.10 | hedged possibility 0.50 |
| It is argued that an admixture of extra light quark pairs can explain a possible discrepancy between the theoretical expectations and the recent data on the non-$D {\bar D}$ decay width of the $\psi(3770)$ and the ratio of the yield of charged and neutral $D$ meson pairs in its decays, as well as on the extra rate of the $\psi'$ direct decay into light hadrons and the rate of the decay $\psi' \to \pi^0 J/\psi$. | interpretation 0.92 | 0.17 | 0.35 | hedged possibility 0.90 |
| It is further argued that the suggested four-quark component of the wave function of the $\psi(3770)$ should give rise to a measurable rate of the decays $\psi(3770) \to \eta J/\psi$ and $\psi(3770) \to \pi^0 J/\psi$. | interpretation 0.64 | 0.34 | 0.24 | hedged possibility 0.50 |
What kind of paper the classifier reports this is: position or commentary 0.81 · evidence from argument 0.94
What was examined, and what was not
Sources read
- arXiv listing abstract v1
Not examined
- full text
- figures and tables
- references and citing sentences
- relations to other papers
Levels run
- P abstract
Not run
- S sections
- T body sentences
- C citations
- R cross-paper relations
How the labels were made
Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,079 input tokens, $0.0002 reported.
Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. This record as JSON
Cited by 1 Pith paper
Reviewed papers on Pith that cite this one. The full citation record
- Coupled-channel model for charmonium levels and an option for X(3872) hep-ph · Jun 2005
How the literature uses it
4 arXiv papers cite this in 5 sentences
Papers citing it · 3 sentences without a confident label
Cites it as background 2 papers
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It hence stimulates intensive experimental and theoretical efforts [ref] on understanding the nature of $ψ(3770)$ and its strong and radiative transition mechanisms.
Further understanding of the non-$D\bar D$ decays of $\psi(3770)$ · Introduction · 0.87
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Theoretical efforts to resolve the $ψ(3770)$ non-$DD̅$ decay puzzle have been extensive [ref] .
Unquenched Charmonium and Beyond · Large non-D$D̅$ decays of $ψ(3770)$ · 0.96
Challenges and discussion
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