Difference between revisions of "Determining the uncertainty of Eγ"
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To determine the uncertainty in Eγ we pick an angle for the neutron within [<math>\theta_n</math>, <math>\theta_n</math> + Δ <math>\theta_n</math>] and a momentum of the neutron between [<math>P_n</math>, <math>P_n</math> + Δ <math>P_n</math>]. | To determine the uncertainty in Eγ we pick an angle for the neutron within [<math>\theta_n</math>, <math>\theta_n</math> + Δ <math>\theta_n</math>] and a momentum of the neutron between [<math>P_n</math>, <math>P_n</math> + Δ <math>P_n</math>]. | ||
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What are reasonable Δ<math>\theta_n</math> and Δ <math>P_n</math>? | What are reasonable Δ<math>\theta_n</math> and Δ <math>P_n</math>? | ||
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| + | <math>P_n</math> is determined by time of flight. | ||
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| + | Knowns: | ||
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| + | <math>m_n</math> = 939.565 ± 2.8x<math>10^-4</math> <math>MeV/c^2</math> | ||
Revision as of 08:24, 12 June 2008
To determine the uncertainty in Eγ we pick an angle for the neutron within [, + Δ ] and a momentum of the neutron between [, + Δ ].
What are reasonable Δ and Δ ?
is determined by time of flight.
Knowns:
= 939.565 ± 2.8x