Talk:Parton (particle physics)
This level-5 vital article is rated Start-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects: | |||||||||||
‹See TfM›
|
The contents of the Parton shower page were merged into Parton (particle physics) on 3 February 2017. For the contribution history and old versions of the redirected page, please see its history; for the discussion at that location, see its talk page. |
Pair distribution function
[edit]Are you guys really sure that "Pair distribution function" should redirect here? I think it is a separate concept, and I'm not even sure how it relates to this topic. --spiralhighway 02:33, 21 June 2006 (UTC)
Generalized parton distributions
[edit]I added a brief paragraph on generalized parton distributions under the Parton distribution functions section, to satisfy a Requested Article request. Generalized parton distributions now redirects here. Since there is so little on ordinary parton distribution functions, I felt that generalized pdf's didn't warrant their own page. HEL 02:11, 9 October 2006 (UTC)
Merger Proposal
[edit]The information on Parton distributions is spread between two pages. Maybe it should be merged? 138.253.48.39 (talk) 10:59, 21 April 2009 (UTC)
Good idea. Marge them. Pulu (talk) 07:04, 5 April 2010 (UTC) Done
Picture Quality
[edit]Can we possibly get a better quality picture for the Parton Scattering than Parton_Scattering.PNG? It is obviously made in Paint, is badly done, and has a low resolution. Although it does get the point across and should be chosen over a higher quality (but less understandable) picture, Wikipedia should have pictures that are both easily understandable AND high quality. —Preceding unsigned comment added by Firestar27 (talk • contribs) 02:28, 19 April 2010 (UTC)
TERRIBLE paragraph
[edit]Any bored physics graduates fancy rewording the following paragraph (which contains no links, and reads dreadfully imho)?
"An interesting fact about partons is that they are defined with respect to a physical scale (as probed by the inverse of the momentum transfer). For instance, a quark parton at one length scale can turn out to be a superposition of a quark parton state with a quark parton and a gluon parton state together with other states with more partons at a smaller length scale. Similarly, a gluon parton at one scale can resolve into a superposition of a gluon parton state, a gluon parton and quark-antiquark partons state and other multiparton states. Because of this, the number of partons in a hadron actually goes up with momentum transfer. At low energies (i.e. large length scales), a baryon contains three valence partons (quarks) and a meson contains two valence partons (a quark and an antiquark parton). At higher energies, however, observations show sea partons (nonvalence partons) in addition to valence partons."
188.220.171.33 (talk) 16:01, 14 May 2011 (UTC)
Named after Dolly?
[edit]Bill Bryson relays the story that Richard Feynman suggested naming what became quarks "partons" after Dolly Parton. I don't see any reference to this in the article. Can anyone verify it?Trashbird1240 (talk) 19:49, 30 June 2011 (UTC)
List of PDF groups is incomplete!
[edit]The list of active PDF groups is incomplete: HERAPDF and ABKM PDF groups are not mentioned. HERAPDF is a PDF set based on a consistent data from HERA ep collider, which is free of corrections existent in the fixed target data (which are arguable and not yet understood and present in the global PDF fit analyses. therefore HERAPDF provides an important cross check on the current understanding of PDFs). This set is supported and cross checked by both H1 and ZEUS collaborations. ABKM is another PDF set based on a different theoretical framework (heavy flavour treatment) than the groups mentioned in this article. Both sets provide PDFs also at NNLO, much needed for reliable predictions at the LHC, therefore they are actually used by the experiments at the LHC. — Preceding unsigned comment added by 92.224.17.219 (talk) 10:32, 3 July 2011 (UTC)
External links modified
[edit]Hello fellow Wikipedians,
I have just modified one external link on Parton (particle physics). Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
- Replaced archive link http://webcache.googleusercontent.com/search?q=cache:mBJ-tI29pMMJ:www.scholarpedia.org/article/Parton_shower_Monte_Carlo_event_generators+http://www.scholarpedia.org/article/Parton_shower_Monte_Carlo_event_generators&cd=1&hl=en&ct=clnk with https://web.archive.org/web/20130402235841/http://www.scholarpedia.org/article/Parton_shower_Monte_Carlo_event_generators on http://www.scholarpedia.org/article/Parton_shower_Monte_Carlo_event_generators
- Added
{{dead link}}
tag to http://phys.cts.ntu.edu.tw/workshop/2012/1010525LHC/PDF/LEC2.pdf - Added
{{dead link}}
tag to http://edwards1.phy.ohiou.edu/~inpp/nuclear_lunch/archive/2007/JiGPDs.pdf - Added
{{dead link}}
tag to http://www.physnet.uni-hamburg.de/services/fachinfo/___Volltexte/Sebastian___Schmidt/Sebastian___Schmidt.pdf - Added
{{dead link}}
tag to http://rchep.pku.edu.cn/filespath/files/20131202113805.pdf
When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.
This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}}
(last update: 5 June 2024).
- If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
- If you found an error with any archives or the URLs themselves, you can fix them with this tool.
Cheers.—InternetArchiveBot (Report bug) 20:40, 23 May 2017 (UTC)
Recent review, "Parton Distributions in Nucleons and Nuclei"
[edit]The Annual Review of Nuclear and Particle Science published "Parton Distributions in Nucleons and Nuclei" in its 2020 volume (open access). It may contain information that is useful in updating or expanding this article. It also has several images that are CC-BY-4.0 that could be useful (I don't have enough physics knowledge to judge how this source could be used). Thanks, Elysia (AR) (talk) 18:02, 11 March 2021 (UTC)
REDUNDANT TEXT
[edit]The “Motivation” paragraph is completely repeated within the “History” first paragraph. Maybe it should be removed? Logicophilosophicus22 (talk) 08:17, 6 December 2022 (UTC)
Comment under Parton Picture
[edit]The comment is imo confusing, there should be a distinction between elastic and inelastic scattering processes (i.e. saying just high energy is misleading, as is written now). In the high-energy fixed-angle elastic scattering processes, the incoming particle does not see a sea of partons, it only sees the valence no of quarks, this is demonstrated by the so-called constituent counting rules, and can be derived from dimensional counting and perturbative considerations in QCD given some mild assumptions. 133.3.201.8 (talk) 07:15, 27 August 2024 (UTC)