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en>Meltingpot
m Changed the start of the second paragraph from "One drawback of his theory" to "One drawback of this theory."
 
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In [[quantum field theory]], specifically the theory of [[renormalization]], the '''bare mass''' of an elementary particle is the limit of its mass as the scale of distance approaches zero or, equivalently, as the energy of a particle collision approaches infinity. It differs from the [[invariant mass]] as usually understood because the latter includes the 'clothing' of the particle by pairs of virtual particles that are temporarily created by the force-fields around the particle. In some versions of field theory, the bare mass of some particles may be plus or minus infinity. In the theory of the [[electroweak interaction]] using the [[Higgs boson]], all particles have a bare mass of zero.
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This allows us to write <math>m = m_0 + \delta_m</math>, where m denotes the experimentally observable mass of the particle, <math>m_0</math> its bare mass, and <math>\delta_m</math> the increase in mass owing to the interaction of the particle with the medium or field.
 
== See also ==
* [[Renormalization#Renormalized and bare quantities|Renormalization]]
 
==References==
<references />
 
[[Category:Mass]]
[[Category:Quantum field theory]]
 
{{quantum-stub}}

Latest revision as of 17:40, 11 October 2014

Hello from Norway. I'm glad to came across you. My first name is Tomoko.
I live in a city called Jessheim in south Norway.
I was also born in Jessheim 39 years ago. Married in September 2010. I'm working at the post office.

My weblog - Secret Healing Powers of Neem