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Browsing by Subject "foton"

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  • thumbnail.journal.alt
    Item type:Doctoral Dissertation, Access status: Restricted ,
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    Measurement of the photon light cone wave function by diffractive dissociation in the ZEUS experiment at HERA
    (Data obrony: 2005) Szuba, Janusz
    Wydział Fizyki i Informatyki Stosowanej
    The photon structure as described by the light cone wave function formalism contains both electromagnetic and hadronic Fock states. The lowest Fock states are made of $l\bar{l}$ and $q\bar{q}$ pairs, respectively. The electromagnetic component was measured in exclusive dimuon photoproduction providing test for an experimental method. The lowest hadronic component of the virtual photon wave function was measured with the ZEUS detector at HERA through the exclusive dijet diffractive production in DIS. The measurement was carried out using the data collected during 1999-00 with an integrated luminosity of $61.5 pb^{-1}$ and presented for the $\gamma^{*}$ — p centre-of-mass energy 100 < W < 200 GeV, the photon virtuality $20 < Q^{2} < 250$ $GeV^{2}$, the mass of the diffractive system $5 < M_{x} < 25 GeV$ and $x_{IP} < 0.01$. Dijet events were selected with the minimum transverse momentum $k_{T} > 1.25$ $GeV$. The cross sections as a functions of the longitudinal momentum fraction of the dijet, the transverse momentum and the azimuthal angle of the jet plane relative to the scattering plane are presented and their theoretical predictions are disscussed.
  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    Rentgenowska fluorescencyjna analiza ilościowa próbek metalicznych metodą Monte Carlo
    (Data obrony: 2020-12-11) Kaczmarek, Iga
    Wydział Fizyki i Informatyki Stosowanej