Calculate kinematic threshold energy of proton.


by tritenick
Tags: energy, kinematic, proton, threshold
tritenick
tritenick is offline
#1
Jan19-10, 12:45 AM
P: 1
1. The problem statement, all variables and given/known data
Given the reactions:
p + 9 Be --> 10B + "gamma"
p + 9 Be --> 9B + 1n
p + 9 Be --> 9Be + 1p
p + 9 Be --> 8Be + 2H
p + 9 Be --> 7Be + 3H
p + 9 Be --> 6Li + 4He

Calculate: a) Q-value
b) kinematic threshold energy of the proton
c)threshold energy of the proton for the reaction
d) minimum kinetic energy of the products

2. Relevant equations 3. The attempt at a solution

Attempt: I have worked out part a) for each. But am not sure what the difference between b & c are? Any ideas? For c) I thought the equation would be:
KE_threshold = -Q*(mb+mB)/(mB+mb+ma)

Thanks for any thoughts!
Phys.Org News Partner Science news on Phys.org
Review: With Galaxy S5, Samsung proves less can be more
Making graphene in your kitchen
Study casts doubt on climate benefit of biofuels from corn residue

Register to reply

Related Discussions
The Work-Energy Principle & Kinematic Eq'ns to calculate speed Introductory Physics Homework 4
threshold energy particle physics Advanced Physics Homework 15
Threshold energy of a photoproduction High Energy, Nuclear, Particle Physics 5
Beta threshold energy High Energy, Nuclear, Particle Physics 2
phaseshift in threshold energy High Energy, Nuclear, Particle Physics 0