Changes between Version 1 and Version 2 of TestLecture1


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Timestamp:
04/06/12 16:33:03 (7 years ago)
Author:
trac
Comment:

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  • TestLecture1

    v1 v2  
    66   1. What are the ingredients needed for a full NLO and NNLO computation?
    77 Why is this needed?
    8    1. Why can the cross-section for %$e^+e^-\rightarrow hadrons$% be described by the partonic cross-section %$e^+e^-\rightarrow q\bar q$%?
     8   1. Why can the cross-section for $e^+e^-\rightarrow hadrons$ be described by the partonic cross-section $e^+e^-\rightarrow q\bar q$?
    99   1. Explain the physical meaning of Bjoerken scaling.
    1010   1. What are the building blocks needed for  a fully exclusice cross-section computation?
    1111      Which of these building blocks can be calculated inside perturbative QCD?
    12    1. What is the meaning of the renormalisation scale %$\mu_R$% and the factorisation scale %$\mu_F$%?
     12   1. What is the meaning of the renormalisation scale $\mu_R$ and the factorisation scale $\mu_F$?
    1313   1. In experiments, we don't see free quarks and gluons (why?), but we see "sprays" of hadrons instead in the detector. Such "sprays" of particles are called ''jets''. Using the formulas given on slide 50 of lecture 1, explain why it is meaningful to say that a parton (a quark or a gluon) will evolve into a jet.
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    2020
    2121
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