HPC
发表文章数: 244
武功等级: 逍遥拳
(第七重)
内力值: 206/206
基本粒子问题之四
核与核之间的作用是短程相互作用，但强相互作用应该算作长程作用吧？
Faith, Fashion and Fancy.
Welcome to 我的域名：http://hongbaozhang.blog.edu.cn
| 发表时间：2005-06-04, 10:23:41 |
 作者资料
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sage
发表文章数: 1125
武功等级: 天山六阳掌
(第六重)
内力值: 535/535
Re: 基本粒子问题之四
Asymptotic gluon is massless. however, the force is short-ranged because of confinement (i.e,. no flux could leak out).
massless vector boson mediate long range force in the perturbative regime (such as E&M)
| 发表时间：2005-06-04, 13:48:16 |
作者资料
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HPC
发表文章数: 244
武功等级: 逍遥拳
(第七重)
内力值: 206/206
Re: 基本粒子问题之四
with the distance increasing, the strengh of the interaction is more strong: this is the reason for confinement. once the deconfinement happens, do you think if your comments break?
Faith, Fashion and Fancy.
Welcome to 我的域名：http://hongbaozhang.blog.edu.cn
| 发表时间：2005-06-05, 00:50:25 |
作者资料
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sage
发表文章数: 1125
武功等级: 天山六阳掌
(第六重)
内力值: 535/535
Re: 基本粒子问题之四
with the distance increasing, the strengh of the interaction is more strong: this is the reason for confinement. once the deconfinement happens, do you think if your comments break?
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what do you mean by deconfinement?
between A and B, when they are close, there is a flux tube of gluons. as the distance grows, the energy of the system grows. At a certain distance, on the order of QCD scale, the flux tube breaks. A and B each pick up something from vacuum and form a new hadron. it is perfectly consistent with the picture that the force between A and B is short ranged. they only interact at the distance smaller than QCD scale.
| 发表时间：2005-06-05, 01:19:29 |
作者资料
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HPC
发表文章数: 244
武功等级: 逍遥拳
(第七重)
内力值: 206/206
Re: 基本粒子问题之四
I think quark-gluon plasma is one kind of matter phase, representing deconfinement of hardron phase.
Faith, Fashion and Fancy.
Welcome to 我的域名：http://hongbaozhang.blog.edu.cn
| 发表时间：2005-06-05, 02:38:18 |
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walk_f