Difference between revisions of "Comparing With Whitney Rates"
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<center><math>N_{Moller} =R_{Moller}\cdot t_{simulated}=\frac{9.97\times 10^{9}Moller}{s} \cdot 9.54\times 10^{-5} s=951138\ Moller</math></center> | <center><math>N_{Moller} =R_{Moller}\cdot t_{simulated}=\frac{9.97\times 10^{9}Moller}{s} \cdot 9.54\times 10^{-5} s=951138\ Moller</math></center> | ||
+ | Using just the scattered particles, for the total time run, | ||
+ | <center><math>\sigma=\frac{ N_{scattered}}{ N_{incident}}\frac{1}{\rho \ell}\Rightarrow N_{incident}=\frac{ N_{scattered}}{\sigma \rho \ell}=\frac{ 1000000}{ .078\cdot 2.11\times 10^{-1}}\approx 6\times 10^7\ incident</math></center> | ||
− | + | If we view the window for each region as how many events can be detected per second | |
− | |||
<center><math>\sigma=\frac{ t\ N_{scattered}}{\Delta t N_{incident}}\frac{1}{\rho \ell}\Rightarrow N_{incident}=\frac{t\ N_{scattered}}{\Delta t\sigma \rho \ell}=\frac{0.0954\times 10^{-3}\ s\ \times 1000000}{250 \times 10^{-9}\ s \times .078\cdot 2.11\times 10^{-1}}\approx 6\times 10^7\ incident \times 380 \approx 2\times 10^{10}</math></center> | <center><math>\sigma=\frac{ t\ N_{scattered}}{\Delta t N_{incident}}\frac{1}{\rho \ell}\Rightarrow N_{incident}=\frac{t\ N_{scattered}}{\Delta t\sigma \rho \ell}=\frac{0.0954\times 10^{-3}\ s\ \times 1000000}{250 \times 10^{-9}\ s \times .078\cdot 2.11\times 10^{-1}}\approx 6\times 10^7\ incident \times 380 \approx 2\times 10^{10}</math></center> |
Latest revision as of 20:32, 28 March 2018
Using the values from Whitney:
For a 5cm target of LH2:
Using the beam current of 100nA,
Given the beam Luminosity of:
We can check to make sure the density makes sense
Using the values from Whitney :
https://wiki.iac.isu.edu/index.php/CLAS12_RateEst_byWA
Energy | 6 GeV | 11 GeV |
Process | (nb) | (nb) |
Moller | 22773001 | 75008636 |
DIS + radiative tail | 128 | 83 |
Elastic e-p | 5511220 | 3670740 |
Elastic radiative tail | 24705 | 12944 |
π0 electro-production | 14802 | 17908 |
π0 photo-production | 569 | 852 |
π+ electro-production | 4032 | 5536 |
π+ photo-production | 282 | 487 |
π− electro-production | 2806 | 3843 |
π− photo-production | 199 | 342 |
Total | 2.83317E7 | 7.87214E7 |
Similarly,
Using just the scattered particles, for the total time run,
If we view the window for each region as how many events can be detected per second