Hi everyone

need help for this question, im not sure what formula to use.really appreciate if someone can help me.

A proton with an energy of 1.5 eV impinging on a potential barrier with

V= 15 eV and a width of 2Å . Assume that the proton mass is equal to the

rest mass of electron. Calculate the probability of the proton tunnelling

through the potential barrier

thank you in advance for all your help & support,really appreciate.