1,213 research outputs found
From Hadronic Cross Section to the measurement of the Vacuum Polarization at KLOE: a fascinating endeavour
The KLOE experiment at the DANE in Frascati is the first
to have employed Initial State Radiation (ISR) to precisely determine the
cross section below 1 GeV. Such a measurement is
particularly important to test the Standard Model (SM) calculation for the
of the muon, where a long standing 3 discrepancy is observed. I
will review the ISR activity in KLOE in the last 18 years from the measurement
of the hadronic cross section to the first direct determination of the
time-like complex running in the region below 1 GeV.Comment: 13 pages, 8 figures. Contribution to the proceedings of the KLOE-2
Workshop on e+e- collision physics at 1 GeV, 26-28 October 2016 INFN -
Laboratori Nazionali di Frascati, Ital
Towards a full NNLO Monte Carlo generator for low energy data into leptons and hadrons
During the last 15 years the Radio MonteCarLow Working Group has been
providing valuable support to the development of radiative corrections and
Monte Carlo event generators for low energy data and -lepton
decays. While the working group has been operating for more than 15 years
without a formal basis for funding, parts of our program have recently been
included as a Joint Research Initiative in the group application of the
European hadron physics community, STRONG2020, to the European Union, with a
more specific goal of creating an annotated database for low-energy hadronic
cross sections in collisions. In parallel the theory community is
continuing its effort towards the realization of improved Monte Carlo
generators with for low energy data into hadrons. Full NNLO
corrections in the leptonic sector are to be combined with an improved
treatment of radiative corrections involving pions. This is of relevance for
the precise determination of the leading hadronic contribution to the muon g-2.
We will report on these initiatives.Comment: 6 pages, Contribution to the proceedings of the European Physical
Society Conference on High Energy Physics (EPS-HEP2023), 21-25 August 2023,
Hamburg, German
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