Uczelnie za progiem zmian

A number of personal views on several aspects of the polish science and higher education system is presented, in the context of the current discussions concerning the forthcoming change of the basic law in that area. The leading issue underlying the whole system should be an increase of institutional autonomy of the universities, by delegating most of the relevant regulations from the high-level acts to the individually adopted statutes, including specific features of every institution. Elements of the university structure are outlined together with the hierarchy of the governing bodies, with a special emphasis on strengthening the role of rector as a manager and leader. Management conducted by university legislatorial, executorial and support bodies must be inspired by a fundamental guideline of university as a harmonious, although complex, entity. Considered are aspects of quality evaluation of research institutions, assignment of high schools to various classes, as well as some ideas on selection criteria for the top-ranked research universities. Already implemented modifications in the funding algorithms are used as a basis to point towards directions and assumptions for further changes in that sector.Tekst prezentuje opinie na temat szeregu aspektów konstrukcji systemu nauki i szkolnictwa wyższego w Polsce, w kontekście dyskusji nad projektem Ustawy 2.0. Kluczowym założeniem systemowym jest zwiększenie autonomii uczelni poprzez delegację regulacji z poziomu ramowej ustawy i doprecyzowujących rozporządzeń na poziom statutu, uwzględniającego specyfikę konkretnej uczelni. Omawiane są aspekty organizacyjne uczelni oraz struktura i organy zarządcze, ze szczególnym uwzględnieniem silnej pozycji rektora jako menadżera i lidera. Zarządzanie uczelnią przez jej organy prawodawcze, wykonawcze i wspierające oparte ma być na naczelnej zasadzie harmonijnego rozwoju instytucji jako całości. Dyskutowane są aspekty kategoryzacji jednostek naukowych, podziału uczelni na typy, w tym sposób wyłaniania uczelni badawczych. Na bazie już wprowadzonych modyfikacji w algorytmach finansowania zaprezentowane są kierunki i założenia dalszych zmian w tym obszarze

Dynamical effects in invariant coordinates for dp breakup

Regular studies of few-nucleon systems reveal various dynamical components, such as three-nucleon force, Coulomb force and relativistic effects, which play an important role in correct description of nuclear interaction. A large set of existing experimental data for 1H(d; pp)n reaction allows for systematic investigations of these dynamical effects, which vary with energy and appear with different strength in certain observables and phase space regions. In order to perform systematic comparisons with precise theoretical calculations, the experimental data are transformed to the variables based on the Lorentz invariants

Study of three-nucleon dynamics in the dp breakup collisions using the Wasa detector

An experiment to investigate the ^{1}H(d,pp)n breakup reaction using a deuteron beam of 300, 340, 380 and 400 MeV and the WASA detector has been performed at the Cooler Synchrotron COSY-Jülich. As a first step, the data collected at the beam energy of 340 MeV are analysed, with a focus on the proton–proton coincidences registered in the Forward Detector. Elastically scattered deuterons are used for precise determination of the luminosity. The main steps of the analysis, including energy calibration, particle identification (PID) and efficiency studies, and their impact on the final accuracy of the result, are discussed

Study of three-nucleon dynamics in the dp breakup collisions using the Wasa detector

An experiment to investigate the ^{1}H(d,pp)n breakup reaction using a deuteron beam of 300, 340, 380 and 400 MeV and the WASA detector has been performed at the Cooler Synchrotron COSY-Jülich. As a first step, the data collected at the beam energy of 340 MeV are analysed, with a focus on the proton–proton coincidences registered in the Forward Detector. Elastically scattered deuterons are used for precise determination of the luminosity. The main steps of the analysis, including energy calibration, particle identification (PID) and efficiency studies, and their impact on the final accuracy of the result, are discussed

Probing three- and four-nucleon interactions with the deuteron breakup reaction

Research in the domain of few-nucleon systems concerns reactions involving a small number of nucleons in which observables can be compared directly to exact computational methods — rigorous solutions of the Faddeev equations. The investigations of such systems reveal existence of various dynamical ingredients such as the three-nucleon force, the Coulomb force or relativistic effects. A large set of the cross-section data of the ^{1}H(d,pp)n breakup reaction obtained at energy of 130 MeV was used to trace the Coulomb force effects. Comparisons of the cross-section data with the predictions using the realistic Argonne 18 potential are presented. The new set of invariants was introduced to describe the process with three nucleons in the final state

Experimental study of three-nucleon dynamics in proton-deuteron breakup reaction

Proton–deuteron breakup reaction can serve as a tool to test stateof- the-art descriptions of nuclear interactions. At intermediate energies, below the threshold for pion production, comparison of the data with exact theoretical calculations is possible and subtle effects of the dynamics beyond the pairwise nucleon–nucleon interaction, namely the three-nucleon force (3NF), are significant. Beside 3NF, Coulomb interaction or relativistic effects are also important to precisely describe the differential cross section of the breakup reaction. The data analysis and preliminary results of the measurement of proton-induced deuteron breakup at the Cyclotron Center Bronowice, Institute of Nuclear Physics, Polish Academy of Sciences in Kraków are presented

Experimental studies of the Coulomb force effects in deuteron-proton break-up reaction at medium energy regime

A set of differential cross-section data of the ^{1}H(d, pp)n breakup reaction at 130 and 160 MeV deuteron beam energies has been measured in the forward polar angles domain. The data were collected with the use of the Germanium Wall (FZ Jülich) and BINA (KVI Groningen) detectors. This part of the phase-space is special with respect to the dominant Coulomb force influence on the system dynamics. The data are compared with the theoretical calculations based on the Argonne V18 potential supplemented with the long-range electromagnetic component. The predictions also include the Urbana IX three nucleon force model. The strongest Coulomb effects are found in regions where the relative energy of the two protons is the smallest

Experimental investigation of the few-nucleon dynamics in deuteron-deuteron collision at 160 MeV

An experiment, with unpolarized deuteron beam of 160 MeV impinging on liquid deuterium target, was carried out using BINA detector at KVI, in Groningen, the Netherlands. Data were collected for the purpose of obtaining high precision differential cross-section for the deuteron break-up reaction. The elastic scattering data were also collected alongside for the purpose of cross-section normalization. We present here a sample of the un-normalised cross-section for the three-body final state $\left ( dd\rightarrow dpn \right )$ reaction

Three- and four-nucleon dynamics at intermediate energies

An experiment, with unpolarized deuteron beam of 160 MeV impinging on liquid hydrogen and liquid deuterium targets, was carried out using BINA detector at KVI in Groningen, the Netherlands. Data were collected for the purpose of obtaining high precision differential cross sections of break-up channels in dp and dd collisions. The elastic scattering data were also collected alongside for the purpose of cross-section normalization. A brief description of the experiment and the data analysis as well as some preliminary results are presented