Configuration efficiency for deuteron breakup reaction investigation

The elastic scattering and deuteron breakup data were collected in the experiment performed at KVI with the use of unpolarized deuteron beam of 80 MeV per nucleon, impinging on hydrogen target. The aim of the analysis is to obtain absolute values of the differential cross section for deuteron breakup reaction. Precise determination of the detection efficiency is indispensable for that purpose. This report explains the efficiency correction introduced to account for the detector granulation and geometry

Few-nucleon system dynamics studied via deuteron-deuteron collisions at 160 MeV

Four nucleon scattering at intermediate energies provides unique opportunities to study effects of the two key ingredients of the nuclear dynamics, the nucleon-nucleon P-wave (NNP-wave) and the three-nucleon force (3NF). This is possible only with systematic and precise data, in conjunction with exact theoretical calculations. Using the BINA detector at KVI Groningen, the Netherlands, a rich set of differential cross section of the 2H(d, dp)n breakup reaction at 160 MeV deuteron beam energy has been measured. Besides the three-body breakup, also cross sections of the 2H(d, 3He)n proton transfer reaction have been obtained. The data are compared to the recent calculations for the three-cluster breakup

Study of doubly strange systems using stored antiprotons

Bound nuclear systems with two units of strangeness are still poorly known despite their importance for many strong interaction phenomena. Stored antiprotons beams in the GeV range represent an unparalleled factory for various hyperon-antihyperon pairs. Their outstanding large production probability in antiproton collisions will open the floodgates for a series of new studies of systems which contain two or even more units of strangeness at the P‾ANDA experiment at FAIR. For the first time, high resolution γ-spectroscopy of doubly strange ΛΛ-hypernuclei will be performed, thus complementing measurements of ground state decays of ΛΛ-hypernuclei at J-PARC or possible decays of particle unstable hypernuclei in heavy ion reactions. High resolution spectroscopy of multistrange Ξ−-atoms will be feasible and even the production of Ω−-atoms will be within reach. The latter might open the door to the |S|=3 world in strangeness nuclear physics, by the study of the hadronic Ω−-nucleus interaction. For the first time it will be possible to study the behavior of Ξ‾+ in nuclear systems under well controlled conditions

The rise of the Federal Reserve and its role in United States history 1913-1989

Praca zawiera trzy rozdziały. W pierwszym rozdziale omawiam powstanie Rezerwy Federalnej i jej role w latach 1913-1933. W drugim i trzecim rozdziale omawiam działalność banku centralnego w latach 1933-1989. W pracy skupiam się na zależności między bankiem centralnym a rządem federalnym.The text contains three chapters. In the first chapter, I discuss the creation of the Federal Reserve and its roles from 1913 to 1933.In the second and third chapters, I discuss the activities of the central bank from 1933 to 1989. In this text, I focus on the relationship between the central bank and the federal government

The appearance of Huta "Katowice" on the pages of "Trybuna Ludu"

Praca zawiera dwa główne rozdziały.W pierwszym rozdziale opiszę sytuację w Polskiej gospodarce pomiędzy rokiem 1970 a 1980. Scharakteryzuje pierwsze sześć lat pomiędzy rokiem 1970 a 1976 i opiszę negatywne skutki w gospodarce pomiędzy rokiem 1976 a 1980.Na końcu rozdziału opiszę sytuację związaną z podjęciem decyzji o budowie kombinatu w Dąbrowie Górniczej.W drugim głównym rozdziale przeanalizuje wizerunek Huty "Katowice" na łamach "Trybuny Ludu" na podstawie artykułów pomiędzy rokiem 1970 a 1980.The text have the two main chapters. In the first chapter I describe the situation in Polish economy beetwen 1970 and 1980. I characterise the first six years beetween 1970 and 1976 and I describe the negative effects in economy beetween 1976 and 1980.At the end of the chapter I describe the situation about decision to start of building the complex in Dąbrowa Górnicza.In the second main chapter I analyse the appearance of Huta "Katowice" on the pages of "Trybuna Ludu" on the basis articles beetween 1970 and 1980

Current stage of studies of the star configurations at intermediate energies with the use of the BINA detector

The Space Star Anomaly in proton-deuteron breakup cross-section occurs at energies of about 10 MeV. Data for higher energies are sparse. Therefore, a systematic scan over star configurations in the range of intermediate energies between 50 and 100 MeV/nucleon is carried out on the basis of data collected with the large acceptance BINA detector. The preliminary cross section results for forward star configurations at 80 MeV/nucleon slightly surpass the theoretical calculations, but the systematic uncertainties are still under study. Also, a new variable describing rotation of star configurations is proposed

Determination of phase space region for cross-check validation of the neutron detection in the BINA experiments

Deuteron breakup reactions are basic laboratories for testing nuclear force models. Recent improvements in the data analysis allow for direct identification of neutrons in the BINA detection setup. This opens up the opportunity to study new aspects of few-nucleon system dynamics like charge dependence of nuclear force or Coulomb interaction. In this paper we determine regions along the kinematical curves where differential cross section of deuteron-proton breakup reactions can be measured by the proton-neutron and proton-proton coincidences simultaneously. This is particularly useful for validation of the neutron detection technique

Demonstration of sensitivity increase in mercury free-spin-precession magnetometers due to laser-based readout for neutron electric dipole moment searches

International audienceWe report on a laser based $^{199}$Hg co-magnetometer deployed in an experiment searching for a permanent electric dipole moment of the neutron. We demonstrate a more than five times increased signal to-noise-ratio in a direct comparison measurement with its $^{204}$Hg discharge bulb-based predecessor. An improved data model for the extraction of important system parameters such as the degrees of absorption and polarization is derived. Laser- and lamp-based data-sets can be consistently described by the improved model which permits to compare measurements using the two different light sources and to explain the increase in magnetometer performance. The laser-based magnetometer satisfies the magnetic field sensitivity requirements for the next generation nEDM experiments