- #1
petrushkagoogol
- 28
- 4
Can we compute the relativistic velocities of 2 photons or 2 neutrinos ? 
Compute Relativistic Velocities of Photons & Neutrinos
- Context: Undergrad
- Thread starter petrushkagoogol
- Start date
Click For Summary
Discussion Overview
The discussion revolves around the computation of relativistic velocities for photons and neutrinos, specifically focusing on the conditions under which these particles can be analyzed in terms of their speeds. The scope includes theoretical considerations regarding the nature of these particles and their velocities in the context of relativity.
Discussion Character
- Exploratory, Technical explanation, Debate/contested
Main Points Raised
- Some participants inquire about the possibility of computing the relativistic velocities of two photons or two neutrinos originating from the same source.
- It is noted that the speed of photons is always c, while neutrinos may travel at any speed less than c.
- There is a question regarding whether the behavior of neutrinos implies they have rest mass.
- Some participants argue that if neutrinos have mass, then they can indeed have speeds less than c.
- Another participant asserts that neutrinos do have rest mass.
Areas of Agreement / Disagreement
Participants express differing views on the implications of neutrinos having rest mass and the nature of their velocities. There is no consensus on the relationship between neutrinos' mass and their speed.
Contextual Notes
The discussion includes assumptions about the definitions of relativistic velocity and the conditions under which neutrinos can be considered in relation to their mass and speed. Some statements remain unresolved regarding the implications of neutrinos' properties.
- #2
jbriggs444
Science Advisor
Homework Helper
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Can you give a little context? What do you mean by "relativistic velocity" and which two photons or which two neutrinos do you have in mind?petrushkagoogol said:Can we compute the relativistic velocities of 2 photons or 2 neutrinos ?
- #3
petrushkagoogol
- 28
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Any two that originate from the same source.
- #4
Dale
Mentor
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The speed of photons is c. Neutrinos may have any speed < c.
- #5
petrushkagoogol
- 28
- 4
Does this imply that neutrinos have rest mass ?Dale said:
- #6
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The implication goes in the other direction. Neutrinos have mass, therefore they can have any speed < c.petrushkagoogol said:
- #7
Dale
Mentor
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Yes, neutrinos have rest mass.petrushkagoogol said:
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