Referat and Exam of Oleg Titov

Moderators: Konstantin Belotsky, Maxim Khlopov

Re: Referat and Exam of Oleg Titov

New postby Maxim Khlopov on Sun 7 Apr 2013 17:15

Dear Oleg,
Let me add some comments:
Freezing out takes place, when the rate of particle-antiparticle annihilation becomes equal to the rate of expansion.
For quarks annihilation is due to QCD processes, while charged leptons annihilation is governed by QED.
t-quark feeezes out before hadronization. At T\sim alpha^2_c m_t ttdiquark and 3t-quark states can form due to chromoCoulomb binding. The frozen out abundance of 3T states, charged leptons and their antiparticles is not influenced by hadronization, while for lighter quarks and singlet and tt hadrons hadronic recombination is possible like (tud) +(t*u) -> proton + light hadrons
Please take into account these effects
With the best regards
M.Yu.Khlopov
[i]Хлопов Максим Юрьевич
Maxim Khlopov[/i]
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Re: Referat and Exam of Oleg Titov

New postby Oleg Titov MEPhI on Sat 11 May 2013 16:58

Здравствуйте, Максим Юрьевич!
Выводы действительно сильно изменились. При пересчёте получилось, что t-кварк составляет почти всю плотность материи.
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Re: Referat and Exam of Oleg Titov

New postby Maxim Khlopov on Sat 11 May 2013 22:14

Dear Oleg,
I cannot say that the last version of your referat, but we have no time to improve the text any more.
Let's stop on that.
You are admitted to exam
Regards
M.Yu.Khlopov
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Maxim Khlopov[/i]
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Exam of Oleg Titov 2 semster

New postby Maxim Khlopov on Mon 13 May 2013 16:06

Exam of Oleg Titov 2 semster

Part 1


Part 2


Part 3
[i]Хлопов Максим Юрьевич
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