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Artykuł prezentuje rezultat badania związków filozofii sztuki Hansa-Georga Gadamera z filozofią dialogu. Poddane zostały analizie trzy kluczowe dla jego myśli pojęcia – gry, symbolu i święta, którymi posłużył się w swojej ontologii dzieła sztuki. Kategorie te, zreinterpretowane w duchu filozofii dialogu odsłaniają szczególny rys Gadamerowskiej hermeneutyki – dążenie do zachowania poglądu innego w dialogu, rolę etyki w komunikacji międzyosobowej, elitaryzm relacji dialogicznej czy krytykę idei całości i totalności. Tym samym doświadczenie estetyczne jawi się jako wzorzec relacji pomiędzy ja i ty.

Lepton scattering is an established ideal tool for studying inner structure of small particles such as nucleons as well as nuclei. As a future high energy nuclear physics project, an Electron-ion collider in China (EicC) has been proposed. It will be constructed based on an upgraded heavy-ion accelerator, High Intensity heavy-ion Accelerator Facility (HIAF) which is currently under construction, together with a new electron ring. The proposed collider will provide highly polarized electrons (with a polarization of $\sim$80%) and protons (with a polarization of $\sim$70%) with variable center of mass energies from 15 to 20 GeV and the luminosity of (2-3) $\times$ 10$^{33}$ cm$^{-2}$ s$^{-1}$. Polarized deuterons and Helium-3, as well as unpolarized ion beams from Carbon to Uranium, will be also available at the EicC. The main foci of the EicC will be precision measurements of the structure of the nucleon in the sea quark region, including 3D tomography of nucleon; the partonic structure of nuclei and the parton interaction with the nuclear environment; the exotic states, especially those with heavy flavor quark contents. In addition, issues fundamental to understanding the origin of mass could be addressed by measurements of heavy quarkonia near-threshold production at the EicC. In order to achieve the above-mentioned physics goals, a hermetical detector system will be constructed with cutting-edge technologies. This document is the result of collective contributions and valuable inputs from experts across the globe. The EicC physics program complements the ongoing scientific programs at the Jefferson Laboratory and the future EIC project in the United States. The success of this project will also advance both nuclear and particle physics as well as accelerator and detector technology in China., EicC white paper, written by the whole EicC working group

Presentation at DIS2022.

Deeply virtual Compton scattering (DVCS) attracts a lot of interest due to its sensitivity to generalized parton distributions (GPDs) which provide a rich access to the partonic structure of hadrons. However, the practical extraction of GPDs for this channel requires a deconvolution procedure, whose feasibility has been disputed. We provide a practical approach to this problem based on a next-to-leading order analysis and a careful study of evolution effects, by exhibiting shadow GPDs with arbitrarily small imprints on DVCS observables at current and future experimental facilities. This shows that DVCS alone will not allow for a model independent extraction of GPDs and a multi-channel analysis is required for this purpose., 7 pages, 2 figures, Submission to SciPost Proceedings DIS2021

In an open competition, students were to determine the mass of a metal cylinder hanging on a spring inside a transparent enclosure. With the time for experiments limited to 24 h due to the unexpectedly large number of participants, a few surprisingly accurate results were submitted, the best of them differing by no more than 0.5% from the true value with a relative uncertainty of less than 1%.

Exclusive ω meson production is studied by the COMPASS Collaboration using the CERN 160 GeV/ c muon beam and a transversely polarised proton target. Single-spin and double-spin asymmetries are measured, some of which are sensitive to the Generalised Parton Distributions E that are related to quark orbital angular momenta. The results, which are sensitive also to the pion-pole contribution to the production mechanism, are compared to the predictions of a phenomenological model.

Optical properties of a composite material made of ferromagnetic metal nanoparticles embedded in a dielectric host are studied. We constructed an effective dielectric tensor of the composite material taking into account the orientational distribution of nanoparticle magnetic moments in external magnetic field. A nonlinear dependence of the optical rotation on magnetic field resulting from the reorientation of nanoparticles is demonstrated. The theoretical findings were applied to the magneto-optical experimental data of cobalt ferromagnetic nanoparticles embedded in a dielectric liquid host. The dependence of the Faraday rotation on Co-based ferromagnetic nanoparticles was measured as a function of the external magnetic field, varying the size of nanoparticles and the wavelength of light. The proposed approach enables quantitative determination of the magnetic moment and the plasma frequency of a single nanoparticle, and from this the size of the nonmagnetic shell of magnetic nanoparticles.

Recent and planned measurements of exclusive meson production at COMPASS are discussed. In particular, results on transverse target spin asymmetry Asin(φ-φS)UT for exclusive ρ0 production are presented. This asymmetry is sensitive on the 'elusive' GPDs E, which are related to the orbital angular momentum of quarks. First observation of exclusive π0 meson production at COMPASS is also reported.

The idea of incarnation is one of the Christian theological concepts that has exerted the strongest influence on philosophical thought in Europe and which was repeatedly referred to in the twentieth century. The paper presents three reinterpretations of this biblical category. Carl Gustav Jung interprets incarnation in the spirit of Gnosticism, as a process of the psychological individuation of God and man; Hans‑Georg Gadamer employs the idea of the inner Word, Verbum interius, to analyse the dogmas of incarnation and the Trinity: seeking in them a solution to the mystery of language; while Michel Henry reaches for the Bible and theology to face anew the issue of human corporeality. These attempts to rethink the theological aspects of the Incarnation of the Son of God reveal the role of this notion in the development of modern psychology, the hermeneutic philosophy of language as well as in anthropology. At the same time, a philosophical reinterpretation of incarnation provides an impulse to rephrase the questions about the relationship between philosophy and theology, as well as faith and reason, good and evil, the relationship between God and man, the mind and the body, as well as speech and thinking. On the other hand, provisional answers to these questions may rekindle theological thought and contribute to the revival of reflection on issues such as the Holy Trinity, the Immaculate and Virgin Conception, or a privation theory of evil. The article provides a starting point for just such a multi‑faceted analysis.

The impact of potential future measurements of beam charge asymmetries on the current knowledge of Compton form factors is evaluated. Elaborating on the results of a global neural network fit to deeply virtual Compton scattering data, a Bayesian reweighting analysis quantifies the improved determination of the real part of the Compton form factor $\mathcal{H}$. Such an improvement is particularly relevant for the experimental determination of the proton mechanical properties or for universality studies of generalized parton distributions through analyses of virtual Compton scattering in both spacelike and timelike regions., Comment: 8 pages, 5 figures