Observation of psi(3770) --> gamma chi_c0

CLEO Collaboration; et al; R.A. Briere

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Observation of psi(3770) --> gamma chi_c0

R.A. Briere, et al, CLEO Collaboration

High Energy Physics - Experiment · Submitted 16 May 2006

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We report the first observation of such decays for J=0 with a branching ratio of (0.73+-0.07+-0.06)%.

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Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 3,073 input tokens, $0.0001 reported.

What the abstract itself states, as probabilities: claims first 0.90 · states limitation 0.73 · human participants 0.01 · controlled comparison 0.05 · randomized assignment 0.01 · states quantitative result 0.99 · compares with prior results 0.45 · mentions code or data availability 0.02.

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From e+e- collision data acquired with the CLEO-c detector at CESR, we search for the non-DDbar decays psi(3770) -> gamma chi_cJ, with chi_cJ reconstructed in four exclusive decays modes containing charged pions and kaons. We report the first observation of such decays for J=0 with a branching ratio of (0.73+-0.07+-0.06)%. The rates for different J are consistent with the expectations assuming psi(3770) is predominantly a 1^3D_1 state of charmonium, but only if relativistic corrections are applied.

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What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	From e+e- collision data acquired with the CLEO-c detector at CESR, we search for the non-DDbar decays psi(3770) -> gamma chi_cJ, with chi_cJ reconstructed in four exclusive decays modes containing charged pions and kaons.	method 0.81	0.94	0.04	asserted 0.76
s1	We report the first observation of such decays for J=0 with a branching ratio of (0.73+-0.07+-0.06)%.	result 1.00	0.97	0.80	asserted 1.00
s2	The rates for different J are consistent with the expectations assuming psi(3770) is predominantly a 1^3D_1 state of charmonium, but only if relativistic corrections are applied.	interpretation 0.99	0.74	0.22	hedged possibility 0.88

What kind of paper the classifier reports this is: empirical study 1.00 · evidence from observation or experiment 0.88.

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arXiv listing abstract v2

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Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper

Original abstract

From e+e- collision data acquired with the CLEO-c detector at CESR, we search for the non-DDbar decays psi(3770) -> gamma chi_cJ, with chi_cJ reconstructed in four exclusive decays modes containing charged pions and kaons. We report the first observation of such decays for J=0 with a branching ratio of (0.73+-0.07+-0.06)%. The rates for different J are consistent with the expectations assuming psi(3770) is predominantly a 1^3D_1 state of charmonium, but only if relativistic corrections are applied.

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References

Forward citations

Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Dalitz decays of vector heavy quarkonia into $\chi_{QJ}(1P)$ in the Bethe-Salpeter approach
hep-ph 2026-09 conditional novelty 6.0 of 10

First relativistic Bethe-Salpeter predictions for Dalitz decays of vector heavy quarkonia into P-wave chi states, with several channels accessible at BESIII and Belle II.
Higher Charmonia and X,Y,Z states with Screened Potential
hep-ph 2009-03 conditional novelty 4.0 of 10

A screened linear potential lowers the predicted masses of higher charmonia enough that the 2009 X, Y, Z states can be assigned to conventional c-cbar levels, with X(3872) as a chi_c1(2P)-dominated state mixed with D0 D*0.
Heavy quarkonium: progress, puzzles, and opportunities
hep-ph 2010-10 accept novelty 2.0 of 10

The Quarkonium Working Group's 2010 review consolidates a decade of charmonium and bottomonium measurements, catalogues the dozen-plus unexplained XYZ states, and ranks the open problems for the next generation of exp...

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3 arXiv papers cite this in 3 sentences

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Papers citing it

Uses its data or values 1 paper

The E1 widths associated with the ground-state scalar $χ_c0$, i.e., $Γ_χ_c0 →J/ψγ$, $Γ_ ψ(2S) →χ_c0 γ$, and $Γ_ψ(3770) →χ_c0 γ$, and with the $C$-odd axial vector $h_c$, i.e., $Γ_h_c →η_c(1S) γ$, $Γ_η_c(2S) →h_c γ$, have been measured by several experiments [ref] and compiled by PDG [ref] .

Shedding light on charmonium · Numerical results · 0.88

Compares with it 1 paper

To further support our claim we would like to quote that CLEO [ref] has reported the observation of the $ψ(3770)$ decay into $γχ_c0(1P)$ which has a decay width of 172 KeV, about two orders of magnitude bigger than our results for $γX(3700)$.

The radiative decay of $\psi(3770)$ into the predicted scalar state X(3700) · Radiative Decay · 0.81

Cites it as background 1 paper

The research on charm hadron physics has experienced a renewed interest in the last years, after the discovery of a few meson states which could not be easily described as $qq̅$ states of quark model potentials, such as the $D_s0(2317)$, the $D_s1(2460)$ [ref] , in the open-charm sector, and the $X(3872)$ [ref] , the $X(3940)$ [ref] , the $Y(3940)$ [ref] or the $Z(3930)$ [ref] , in the hidden-charm sector.

Radiative decays of dynamically generated charmed baryons · Introduction · 0.91

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