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SUMMARY:Radiative corrections to hadrons-photons interactions
DTSTART;VALUE=DATE-TIME:20181130T140000Z
DTEND;VALUE=DATE-TIME:20181130T153000Z
DTSTAMP;VALUE=DATE-TIME:20190116T150844Z
UID:indico-event-3496@indico.ific.uv.es
DESCRIPTION:In this presentation the results of theoretical calculations f
or the electron-positron annihilation into hadrons and photons will be pre
sented. The wide range of the subjects will be covered with the emphasis o
n the calculations of the radiative corrections and its implementation in
the PHOKHARA Monte Carlo event generator. The subjects important from the
point of view of the discrepancy between experimental value and the Standa
rd Model predictions of the the anomalous magnetic moment of the muon will
be discussed. One of them is modeling of the two-photon pseudoscalar meso
ns transition form factors\, which have an impact for determination of the
hadronic light-by-light contribution. The second\, calculations of the ne
xt-to-leading-order radiative corrections for the pion pair production cro
ss section\, which are important input for the data analysis of the BABAR
and KLOE measurements\, where one observes the discrepancy. The another su
bject is connected with the proton radius puzzle. The modeling of the nucl
eon form factors is the first step in calculation of the complete radiativ
e corrections to the electron-proton scattering as the two-photon contribu
tions to this reaction involve knowledge of the proton transition form fac
tors. The impact of the final state radiative corrections for the extracti
on of the p ̄p cross section via radiative return will be discussed. This
cross section could give an information about proton form factors in the
time-like region.\nThe last subject covers the production of the states wi
th even charge conjugation and parity. The model for electronic widths of
the χc1and χc2 will be presented. A reaction will be proposed\, where th
e resonant signal of these states could be observed through the interferen
ce with the radiative return background.\n\nhttps://indico.ific.uv.es/even
t/3496/
LOCATION:Universe 1001-Primera-1-1-1 - Paterna. Seminario
URL:https://indico.ific.uv.es/event/3496/
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