SR Kinetic Energy Mass Increase for Uncharged Particles?

[LarryS]

The mass of a particle will increase as its velocity increases according to special relativity. This has been confirmed in countless experiments in which particle accelerators accelerate charged particles.

What type of experiments have confirmed this for uncharged particles?

Thanks in advance.

 

[weirdoguy]

The mass of a particle will increase as its velocity increases according to special relativity.

No it won't, read this:
https://www.physicsforums.com/insights/what-is-relativistic-mass-and-why-it-is-not-used-much/

 

[LarryS]

Quoted: No it won't, read this:
https://www.physicsforums.com/insights/what-is-relativistic-mass-and-why-it-is-not-used-much/This paper seemed to be more about "relativistic mass" becoming any obsolete term. I did not see anything suggesting that the mass of an uncharged particle would not approach infinity as its velocity approached the speed of light.

 

[jtbell]

If energy and momentum did not vary with speed in the same way with uncharged particles as with charged ones, the folks at CERN would be in big trouble in the analysis of their experiments.

 

[LarryS]

If energy and momentum did not vary with speed in the same way with uncharged particles as with charged ones, the folks at CERN would be in big trouble in the analysis of their experiments.

Makes sense. Thanks.

 

[e.bar.goum]

If energy and momentum did not vary with speed in the same way with uncharged particles as with charged ones, the folks at CERN would be in big trouble in the analysis of their experiments.

For example, nTOF at CERN. Relativistic uncharged particle experiments, as requested by the OP: http://home.cern/about/experiments/ntof

 

[LarryS]

For example, nTOF at CERN. Relativistic uncharged particle experiments, as requested by the OP: http://home.cern/about/experiments/ntof

Interesting. Thanks.

 

[bcrowell]

A neutral object can be formed as a composite of charged objects, so it's hard to see how neutral and charged objects could obey different rules. For example, a neutron is actually a bound system made of three quarks, which are all charged. If you do an experiment with neutrons, and say, "hey, I've tested the kinematics of neutral particles," I could say, "no, you did an experiment with quarks, which are charged."

 

[Orodruin]

Quoted: No it won't, read this:
https://www.physicsforums.com/insights/what-is-relativistic-mass-and-why-it-is-not-used-much/This paper seemed to be more about "relativistic mass" becoming any obsolete term. I did not see anything suggesting that the mass of an uncharged particle would not approach infinity as its velocity approached the speed of light.

I wrote it, it is exactly what it says. With relativistic mass becoming obsolete, there is only one mass which physicists really talk about (hence we never need to use the "rest" or "invariant" to prefix this mass). This mass does not change with velocity and is a relativistic invariant. The concept of relativistic mass fell out of fashion not only because it does not really have the properties you would expect from a mass, but also because there already is a quantity describing the same thing - the particle energy.

 

[Orodruin]

The perhaps best test of the energy of a neutral massive particle growing unbounded as it approaches the speed of light would be neutrino time of flight experiments. We here have a neutral particle with a miniscule mass and no matter how much energy you put in, it does not pass the speed of light.

 

[Vanadium 50]

If neutral and charged particles obeyed different kinematics, one could use the difference to determine absolute velocity.