1999 European School of High-Energy Physics: Časta-Papiernička, Slovak Republic, 22 August-4 September 1999 : ProceedingsA. Olchevski |
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Page 120
... photon decoupling As the temperature of the universe decreased , electrons could eventually become bound to protons to form neutral hydrogen . Nevertheless , there is always a non - zero probability that a rare energetic photon ionizes ...
... photon decoupling As the temperature of the universe decreased , electrons could eventually become bound to protons to form neutral hydrogen . Nevertheless , there is always a non - zero probability that a rare energetic photon ionizes ...
Page 121
... photons in such a plasma can be estimated from the photon interaction rate , 71 ~ г1 = neσ TM . For temperatures above a few eV , the mean free path is much smaller that the causal horizon at that time and photons suffer multiple ...
... photons in such a plasma can be estimated from the photon interaction rate , 71 ~ г1 = neσ TM . For temperatures above a few eV , the mean free path is much smaller that the causal horizon at that time and photons suffer multiple ...
Page 227
... photons , b - jets , taus , etc. must be satisfied . In particular , excellent electron / jet and photon / jet separation capabilities are needed . Jets faking photons should be rejected by a factor of ~ 103 , for a photon efficiency of ...
... photons , b - jets , taus , etc. must be satisfied . In particular , excellent electron / jet and photon / jet separation capabilities are needed . Jets faking photons should be rejected by a factor of ~ 103 , for a photon efficiency of ...
Contents
Field Theory and the Standard Model | 1 |
Astrophysics and cosmology | 109 |
Determination of cosmological parameters | 126 |
39 other sections not shown
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