Proton Collision and Coulomb Barrier

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SUMMARY

The discussion focuses on calculating the temperature required for two protons to collide while neglecting quantum mechanical tunneling. It establishes that protons must achieve velocities ten times the root mean square (rms) value derived from the Maxwell-Boltzmann distribution to overcome the Coulomb barrier, defined at a distance of 2 femtometers (fm). The central temperature of the Sun is referenced for comparison, emphasizing the significance of high-energy conditions for proton collisions in stellar environments.

PREREQUISITES
  • Understanding of Maxwell-Boltzmann distribution
  • Knowledge of root mean square (rms) velocity calculations
  • Familiarity with Coulomb barrier concepts
  • Basic principles of nuclear physics
NEXT STEPS
  • Calculate the root mean square (rms) velocity of protons using the equation vrms = √(3kT/m)
  • Explore the implications of quantum mechanical tunneling in nuclear reactions
  • Research the central temperature of the Sun and its relation to proton-proton fusion
  • Investigate the effects of temperature on particle collision rates in astrophysics
USEFUL FOR

Students and educators in physics, particularly those studying nuclear reactions, astrophysics, and thermodynamics, will benefit from this discussion.

AnniB
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Homework Statement


What temperature would be required for two protons to collide if quantum mechanical tunneling is neglected? Assume that nuclei having velocities ten times the root mean square (rms) value for the Maxwell-Boltzmann distribution can overcome the Coulomb barrier (which you can consider to be overcome when r = 2 fm). Compare your answer with the estimated central temperature of the Sun.

Homework Equations


vrms=\sqrt{}\frac{}{}(3kT/m)
Maxwell-Boltzmann distribution (?)

The Attempt at a Solution


I feel like I'm probably completely oversimplifying this problem, but in my mind I should just be able to find what the vrms is for protons normally and then use vrms find vrms=10vnormal to find the velocity, and then plug it into the normal rms equation once more to find the temperature. My only problem is that I don't think there's any way this problem is THAT simple.
 
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I'm also not sure what the Maxwell-Boltzmann distribution has to do with this problem. Any help would be appreciated! Thank you!
 

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