请输入您要查询的英文单词:

 

单词 parton
释义

partonn.

Brit. /ˈpɑːtɒn/, U.S. /ˈpɑrˌtɑn/
Origin: Formed within English, by derivation. Etymons: particle n., -on suffix1.
Etymology: < part- (in particle n.) + -on suffix1 (see below on the coinage of the term).
Particle Physics.
Each of the hypothetical pointlike constituents of the nucleon that were invoked by R. P. Feynman to explain the way the nucleon inelastically scatters electrons of very high energy.The printed coinage was published after the term had been given currency by Feynman in discussions.
ΘΚΠ
the world > matter > physics > atomic physics > particle physics > action of dispersing particles > [noun] > hypothetical constituent of nucleon
parton1969
1969 New Scientist 26 June 679/2 A similar ‘current bun’ concept of the proton is implied by the so-called ‘parton’ theory.
1969 R. P. Feynman in C. N. Yang et al. High Energy Collisions 241 I call the fundamental bare particles of my underlying field theory ‘partons’.
1971 Science 24 Sept. 1223/1 Nucleons may have an inhomogeneous structure, with their charge concentrated into point-like constituents, called partons, rather than being evenly distributed.
1986 Proc. Royal Soc. A. 404 240 We see the parton as containing three valence quarks (u, u and d) and a sea of soft qq̄ pairs.
1999 Nature 1 July 22/3 Some of the partons are quarks, but many are gluons. The quarks carry all the electric charge, but most of the energy is in the colour gluons.
This entry has been updated (OED Third Edition, June 2005; most recently modified version published online March 2022).
<
n.1969
随便看

 

英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/1/4 5:20:09