correction to my suggested TP number
From:
Date: 12/17/97
Time: 10:19:15 AM
Remote Name: 137.138.115.189
Comments
Dear Colleagues, As usual for a late night calculations, there is some typo
on my note, resulting in some corrections for some numbers quoated in my last
memo. Here is the summaray again with "correct" numbers. 1) L = 2*10^32 cm^-2
s^-1 2) sigma(inelastic)= 80 mb 3) N(interaction) = L*sigma(inelastic) =
1.6*10^7 / sec 4) N(real bunch crossing) = 3*10^7 /sec (74.4% of 40 MHz) 5)
N(average number of pp interaction in one real bunch crossing) = 0.5333 6)
Probability to have no pp interaction in one real bunch crossing = 0.5867 7)
Probability to have ONE pp interaction in one real bunch crossing = 0.3129 8)
sigma(b anti-b) = 500 microb 9) N(b anti-b) = L*sigma(b anti-b) = 10^5 / sec 10)
N(b anti-b in one pp interaction bunch crossing) = 10^5 * 0.3129/(1-0.5867) =
7.57 * 10^4 / sec (i.e. fraction on b anti-b produced in one pp interaction
bunch = 0.757)
Sorry for the confusion and I appriciate Guy who pointed out that there must
be some mistakes. yours Tatusya
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