File:Charmed-dia-w.png

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Non-free media information and use rationale true for Quark
Description	The first event involving the Σ⁺ _c baryon, and thus charm quark. Recorded at Brookhaven National Laboratory in 1974. Photo on the left, annotated on the right. See source for explanation.
Source	https://web.archive.org/web/20050208130203/https://www.bnl.gov/bnlweb/history/charmed.asp
Article	Quark
Portion used	Entire
Low resolution?	No
Purpose of use	To illustrate a significant historical event in the history of particle physics, and in the establishment of the quark model
Replaceable?	Could be replaced by a picture involving the discovery of the J/ψ meson. But I don't know if these pictures even exist.
Fair useFair use of copyrighted material in the context of Quark//en.wikipedia.org/wiki/File:Charmed-dia-w.pngtrue

Non-free media information and use rationale true for Charmed Sigma baryon
Description	The first event involving the Σ⁺ _c baryon. Recorded at Brookhaven National Laboratory in 1974. Photo on the left, annotated on the right. See source for explanation.
Source	https://web.archive.org/web/20050208130203/https://www.bnl.gov/bnlweb/history/charmed.asp
Article	Charmed Sigma baryon
Portion used	Entire
Low resolution?	No
Purpose of use	To illustrate the discovery of the Σ⁺ _c baryon
Replaceable?	No
Fair useFair use of copyrighted material in the context of Charmed Sigma baryon//en.wikipedia.org/wiki/File:Charmed-dia-w.pngtrue

This work is copyrighted (or assumed to be copyrighted) and unlicensed. It does not fall into one of the blanket acceptable non-free content categories listed at Wikipedia:Non-free content § Images or Wikipedia:Non-free content § Audio clips, and it is not covered by a more specific non-free content license listed at Category:Wikipedia non-free file copyright templates. However, it is believed that the use of this work:

To illustrate the subject in question
Where no free equivalent is available or could be created that would adequately give the same information
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qualifies as fair use under United States copyright law. Any other uses of this image, on Wikipedia or elsewhere, may be copyright infringement. See Wikipedia:Non-free content and Wikipedia:Copyrights.
Fair use

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	06:33, 24 November 2017		386 × 257 (24 KB)	Theo's Little Bot (talk \| contribs)	Reduce size of non-free image (BOT - disable)
	17:23, 26 January 2010	No thumbnail	470 × 314 (33 KB)	Headbomb (talk \| contribs)	{{Non-free use rationale \|Article = Quark \|Description = The discovery of the Omega baryon played a key-role in the establishment of the quark model and the eightfold way \|Source = http://www.bnl.gov/bnlweb/history/ch

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Horizontal resolution	37.8 dpc
Vertical resolution	37.8 dpc