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**Prove that diproton can't exisit**

## Homework Statement

As stated in the title I'm trying to prove that that di-proton(di-hydrogen) can't exist.

M(p)=1.008665u

M(n)=1.007825u

M(3He)=3.016030u

n-p=2.226Mev

R=R(0)*A^1/3

R(0)=1.2*10^-15

## Homework Equations

None

## The Attempt at a Solution

What I did is that i calculated the Total binding energy of (3)He.

Bt(He) = 7.716649Mev

Bt(He) = (n-p) + (n-p) + (p-p)

so p-p= 3.2646Mev

Then I have calculated the electrostatic repulsion(U) between the protons.

these 2 protons exist at distance R=1.511*10^-15

U=0.95Mev

I've done something wrong because clearly Bt>U

Where is my mistake?

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