Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links
Paper Citation Record · LEDGER
A new anomaly observed in $^4$He supports the existence of the hypothetical X17 particle
As of 9 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 11 inbound Pith citation observations for arXiv:2104.10075.
A citation records a reference. It does not transfer a finding from one paper to another.
Coverage vector
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-08T06:32:00.761636+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links, observed 2026-08-06T21:53:05.773561Z
A source-named dated measurement, never combined with another source.
Source: arxiv_reference, observed 2026-07-01T13:55:46.195097Z
Reference resolution
0 of 0 outbound references displayed
- verified exact0
- verified fuzzy0
- unresolved0
- parse uncertain0
- malformed identifier0
- metadata mismatch0
External citation measurements
No source-named external measurement is stored.
Outbound references
No outbound reference observations are available for this paper version.
Pith citing papers
Observation efb700da-46d9-4cc2-979b-4d4133b38db5 · inbound
Beam-Dump Ceiling and Its Experimental Implication: The Case of a Portable Experiment cites this paper.
Beam-Dump Ceiling and Its Experimental Implication: The Case of a Portable Experiment A new anomaly observed in $^4$He supports the existence of the hypothetical X17 particle
Reference 3
- Resolution
- verified exact
- arxiv_id, observed 2026-05-24T04:26:00.162377Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 267bd468-ed87-4078-8e68-a573c701b6fe · inbound
Testing the hypothesis of vector X17 boson by D meson, Charmonium, and $\phi$ meson decays cites this paper.
Testing the hypothesis of vector X17 boson by D meson, Charmonium, and $\phi$ meson decays A new anomaly observed in $^4$He supports the existence of the hypothetical X17 particle
Reference 11
- Resolution
- verified exact
- arxiv_id, observed 2026-05-23T05:02:36.387003Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 89bd319c-e611-4230-a49a-b0b150185b27 · inbound
Combined Evidence for the $X_{17}$ Boson After PADME Results on Resonant Production in Positron Annihilation cites this paper.
Combined Evidence for the $X_{17}$ Boson After PADME Results on Resonant Production in Positron Annihilation A new anomaly observed in $^4$He supports the existence of the hypothetical X17 particle
Reference 9
- Resolution
- verified exact
- arxiv_id, observed 2026-05-22T19:32:00.666301Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 6012697e-0755-4bf5-b3a8-27fd2a2cec59 · inbound
Probing the ATOMKI X17 vector boson using Dalitz decays $V\to Pe^+e^-$ cites this paper.
Probing the ATOMKI X17 vector boson using Dalitz decays $V\to Pe^+e^-$ A new anomaly observed in $^4$He supports the existence of the hypothetical X17 particle
Reference 5
- Resolution
- unresolved
- no resolver link, observed 2026-08-06T21:53:05.773561Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 974b2b0e-8bd7-44e7-af3f-a47852b14fee · inbound
Potential for the discovery of the protophobic boson at the STCF cites this paper.
Potential for the discovery of the protophobic boson at the STCF A new anomaly observed in $^4$He supports the existence of the hypothetical X17 particle
Reference 29
- Resolution
- malformed identifier
- no resolver link, observed 2026-08-03T17:27:05.617555Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation b27c978a-9cd7-4d4a-93a3-ff33d341b317 · inbound
Where to find $X(17)$? cites this paper.
Where to find $X(17)$? A new anomaly observed in $^4$He supports the existence of the hypothetical X17 particle
Reference 11
- Resolution
- unresolved
- no resolver link, observed 2026-08-03T10:58:54.227351Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation a44b85ce-b41d-442e-a8d7-de9c2e6cd2cd · inbound
Axion-Like Electrophilic Portal for Pion Dark Matter cites this paper.
Axion-Like Electrophilic Portal for Pion Dark Matter A new anomaly observed in $^4$He supports the existence of the hypothetical X17 particle
Reference 67
- Resolution
- verified exact
- arxiv_id, observed 2026-05-16T08:02:33.841170Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 4d6f8b35-b902-4bcd-b030-ef927ddfb5fd · inbound
Flavor specific chiral $U(1)_X$ framework for explaining the ATOMKI anomaly cites this paper.
Flavor specific chiral $U(1)_X$ framework for explaining the ATOMKI anomaly A new anomaly observed in $^4$He supports the existence of the hypothetical X17 particle
Reference 32
- Resolution
- verified exact
- arxiv_id, observed 2026-05-11T19:41:09.723800Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation b9487e88-f005-44da-8d91-e8f898bed685 · inbound
Flavor specific chiral $U(1)_X$ framework for explaining the ATOMKI anomaly cites this paper.
Flavor specific chiral $U(1)_X$ framework for explaining the ATOMKI anomaly A new anomaly observed in $^4$He supports the existence of the hypothetical X17 particle
Reference 32
- Resolution
- unresolved
- no resolver link, observed 2026-08-02T15:45:10.699053Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 790bbb33-b507-4727-9c2f-ee87bedaca08 · inbound
The X17 Existence Hinted at by Nuclear Reactor Neutrinos cites this paper.
The X17 Existence Hinted at by Nuclear Reactor Neutrinos A new anomaly observed in $^4$He supports the existence of the hypothetical X17 particle
Reference 6
- Resolution
- verified exact
- arxiv_id, observed 2026-07-01T13:55:46.196705Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-08T06:32:00.761636+00:00.
Observation 6ee6b0a1-b99f-4369-bbff-70684a37e76b · inbound
Updated E141 constraints on a long-lived $X_{17}$ vector boson cites this paper.
Updated E141 constraints on a long-lived $X_{17}$ vector boson A new anomaly observed in $^4$He supports the existence of the hypothetical X17 particle
Reference 6
- Resolution
- unresolved
- no resolver link, observed 2026-08-01T05:54:33.992593Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.