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Autor:
Susanna Costanza, F. Cividini
Publikováno v:
EPJ Web of Conferences, Vol 241, p 01005 (2020)
Photon-induced reactions, like meson photoproduction, allow to excite the nucleon, to have access to many different polarisation observables and are an essential tool to disentangle the role of the different electromagnetic multipoles due to the chan
Autor:
V. B. Dunin, Elena Kokoulina, Andrey Kutov, R Shulyakovsky, V. A. Nikitin, Vladimir Dudin, Nurlan Barlykov, V. Riadovikov
Publikováno v:
EPJ Web of Conferences, Vol 235, p 03003 (2020)
Over 30 years there has been no comprehensive understanding of the mechanism of soft photons (energy smaller than 50 MeV) formation. Experimental data indicate an excess of their yield in hadron and nuclear interactions in comparison with calculation
Autor:
Takashi Sako
Publikováno v:
EPJ Web of Conferences, Vol 210, p 02003 (2019)
Two studies by the Telescope Array group related to the hadronic interaction observed with Extensive Air Showers are reviewed. (1) Inelastic p-air cross section $ \sigma _{p - air}^{inel} = 567.0 \pm 70.5\,[{\rm{stat]}}_{ - 25}^{ + 29} [{\rm{sys}}]\,
Autor:
Rong-Gang Ping, Zhen Gao
Publikováno v:
EPJ Web of Conferences, Vol 218, p 07005 (2019)
An event generator for multi hadron production is presented for measuring the R value in the τ-charm energy region with e+e− collisions. The initial state radiation effects are considered up to second order accuracy, and the radiative correction
Autor:
Yoshitaka Itow
Publikováno v:
EPJ Web of Conferences, Vol 208, p 01001 (2019)
Hadronic interactions of very high energy cosmic rays have been studied in various aspects of motivation. In recent decades, mainly motivated by air shower experiments, modelling of very high energy cosmic ray interactions have been greatly improved
Autor:
Gennady Lykasov, Alexander Malakhov
Publikováno v:
EPJ Web of Conferences, Vol 204, p 01021 (2019)
It is shown that the inclusive spectra of the produced hadrons in hadron-hadron and nuclear-nuclear collisions can be presented as the universal function dependent of the self-similarity parameter in the analytical form. The article gives a descripti
Autor:
S. B. Shaulov
Publikováno v:
EPJ Web of Conferences, Vol 208, p 02004 (2019)
A detailed study of the cores of extensive air showers (EAS) at mountain level (Tien-Shan 690 g/cm2) was carried out in the hybrid experiment HADRON. An analysis of the fine structure of the EAS spectrum in the energy region1015- 1017(knee) showed th
Autor:
Emanuel Gouveia
Publikováno v:
EPJ Web of Conferences, Vol 214, p 01017 (2019)
Hadronic signatures are critical to the ATLAS physics program, and are used extensively for both the StandardModel measurements and searches for new physics. These signatures include generic quark and gluon jets, as well as jets originating from b-qu
Autor:
A. Marcinek
Publikováno v:
EPJ Web of Conferences, Vol 199, p 02020 (2019)
This contribution presents a selection of recent results on meson production from the NA61/SHINE experiment. The results include spectra of ø mesons in p + p collisions at 40, 80 and 158 GeV/c beam momenta, as well as π±, K±, ρ0, ω and K*0 meso
Autor:
M. Yosoi
Publikováno v:
EPJ Web of Conferences, Vol 199, p 01020 (2019)
Two high-energy photon beamlines, LEPS and LEPS2, have been operated at SPring-8. In both beamlines, linearly polarized photon beams up to 2.9 GeV produced by laser-induced backward Compton scattering from 8 GeV electrons have been used to study quar