[seminar] Kolokvij FO, Muller

[hbuljan at phy.hr]

Poštovani kolege,

idući utorak predavanje naslovljeno "A view inside the proton"
održati će nam Dr. Dieter Müller sa Instituta za teorijsku
fiziku u Bochumu. Predavanje počinje u 14:15 sati u predavaonici
F08. Sažetak predavanja nalazi se u nastavku poruke.

Srdačan pozdrav,
Hrvoje Buljan

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KOLOKVIJ FIZIČKOG ODSJEKA
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Vrijeme:   utorak, 18. 03. 2008., 14:15 sati (točno)
Mjesto:     Fizički odsjek, Bijenička c. 32, predavaonica F08

        A view inside the proton

           Dr. Dieter Müller
   Institut fur Theoretische Physik II,
     Ruhr-Universitaet Bochum, Germany

With the Stanford Linear Accelerator a new era in particle physics started
in 1966 yielding a new view of the world of elementary particles. It was
realized soon that the proton with a radius of about $10^{-15}$ m is not
elementary rather it is made of so-called partons.  These constituents
were identified as quarks, hypothetically introduced by Gell-Mann and
Zweig. The dynamics of quarks is described by Quantum Chromodynamics, 
which allows to analyze experimental measurements in terms of partonic
degrees of freedom. In the last four decades both experimental and
theoretical efforts lead to an impressive quantitative improvement of
measurements, e.g., providing a precise knowledge of the longitudinal
distribution of partons. More recently, the concept of generalized parton
distribution has been introduced and developed. In this framework the
proton can be explored from a new perspective and the problem of the
proton spin decomposition and the three dimensional distribution of
partons in the proton can be addressed.


				Voditelj seminara i kolokvija FO
				Hrvoje Buljan, hbuljan at phy.hr
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