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Wyświetlanie 1-10 z 44
Tytuł:
Experimental study of three-nucleon dynamics in the dp breakup collisions using the WASA detector
Autorzy:
Magiera, Andrzej
Kłos, B.
Parol, Wiktor
Kozela, A.
Stephan, E.
Kistryn, Stanisław
Khatri, Ghanshyambhai
Skwira-Chalot, I.
Ciepał, I.
Opis:
An experiment to investigate the 1H(d,pp)n breakup reaction using a deuteron beam of 340, 380 and 400 MeV and the WASA detector has been performed at the Cooler Synchrotron COSY-Jülich. The studied energy region, below but close to a pion production threshold, may provide information on various aspects of nuclear interactions, in particular on relativistic effects and their interplay with the three nucleon force (3NF). The almost 4π geometry of the WASA detector gives an unique possibility to study the different aspects of nucleon-nucleon dynamics in the three nucleon system. The main steps of the analysis, including energy calibration, PID and studied of effciency, and their impact on final accuracy of the result, will be discussed.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Inne
Tytuł:
Experimental study of three-nucleon dynamics in the dp breakup reaction
Autorzy:
Parol, Wiktor
Szpik, K.
Skwira-Chalot, I.
Kozela, A.
Kistryn, Stanisław
Stephan, E.
Ciepał, I.
Kłos, B.
Magiera, Andrzej
Khatri, Ghanshyambhai
Opis:
An experiment to investigate the 1H(d,pp)n breakup reaction using a deuteron beam of 340, 380 and 400 MeV and the WASA detector has been performed at the Cooler Synchrotron COSY-Jülich. The main goal was a detailed study of various aspects of fewnucleon dynamics like the three nucleon force (3NF), the long-range Coulomb interaction or relativistic effects in the medium energy region. The relativistic effects and their interplay with 3NF become more important with increasing available energy in the three nucleon system. The almost 4π geometry of the WASA detector provides an unique possibility to study various aspects of dynamics. The studies of the 3N system dynamics in the breakup reaction with BINA detector are continued in the Cyclotron Center Bronowice.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Inne
Tytuł:
4-nucleon system dynamics in proton helium-3 scattering
Autorzy:
Parol, Wiktor
Skwira-Chalot, I.
Pałasz, Tadeusz
Włoch, B.
Kozela, A.
Ciepał, Izabela
Kulessa, P.
Stephan, E.
Głowacz, Bartosz
Zejma, Jacek
Wydawca:
Springer
Opis:
We propose kinematically complete measurement of the differential cross section and analyzing power in proton polarized helium-3 elastic scattering and breakup. The proposed method, involving tracking of charged reaction products and subsequent reconstruction of the reaction vertex, should be regarded as a novel experimental approach in this low energy nuclear physics experiment. The details of the proposed experimental setup and prospects of the first measurement at the new Cyclotron Center Bronowice in Kraków are also given.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Inne
Tytuł:
Experimental studies of few-nucleon systems
Autorzy:
Parol, Wiktor
Wilczek, A.
Skwira-Chalot, I.
Włoch, B.
Kozela, A.
Kistryn, Stanisław
Kulessa, P.
Stephan, E.
Kłos, B.
Łobejko, A.
Szadziński, A.
Zejma, Jacek
Opis:
Understanding nuclear interactions is the basis for describing nuclear systems, their structure and reactions. Studies of reactions in the simplest systems consisting of a few nucleons provide stringent tests for nuclear interaction models. The data collected by our group over the last 30 years are crucial for understanding the few-nucleon system dynamics. Measurements of observables (cross-section, vector andmtensor analyzing powers) for the deuteron breakup in collision with a proton/deuteron were conducted at SIN/PSI (Switzerland), KVI (the Netherlands), FZ-Jülich (Germany) and CCB IFJ PAN Kraków (Poland), and provided data covering a wide range of the reaction phase-space. Main conclusions following from our research and its current status are presented.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Inne
Tytuł:
Experimental studies of the Coulomb force effects in deuteron-proton break-up reaction at medium energy regime
Autorzy:
Kłos, B.
Messchendorp, J.
Kulessa, P.
Parol, Wiktor
Kalantar-Nayestanaki, N.
Kozela, A.
Włoch, B.
Stephan, E.
Kistryn, Stanisław
Khatri, Ghanshyambhai
Skwira-Chalot, I.
Ciepał, I.
Opis:
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.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Inne
Tytuł:
Differential cross section for proton induced deuteron breakup at 108 MeV
Autorzy:
Kłos, B.
Kulessa, P.
Zejma, Jacek
Parol, Wiktor
Kalantar-Nayestanaki, N.
Łobejko, A.
Kozela, A.
Włoch, B.
Stephan, E.
Kistryn, Stanisław
Szadziński, A.
Skwira-Chalot, I.
Wilczek, A.
Opis:
The differential cross sections for the proton-deuteron breakup reaction have been measured for more than 200 angular configurations of outgoing protons in the range of polar angles from 13 to 27 degrees with a proton beam at 108 MeV. The paper presents the experimental results of the selected configurations, which are compared to state-of-the-art theoretical calculations. In some regions of the phase space, a strong influence of the Coulomb interaction is observed.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
Simulation of star configurations in the BINA detector
Autorzy:
Kłos, B.
Messchendorp, J.
Kulessa, P.
Zejma, Jacek
Parol, Wiktor
Kalantar-Nayestanaki, N.
Łobejko, A.
Włoch, B.
Kozela, A.
Stephan, E.
Kistryn, Stanisław
Szadziński, A.
Skwira-Chalot, I.
Wilczek, A.
Opis:
Star Anomaly is one of the most intriguing and unsolved discrepancies between theoretical calculations and experimental data observed in the domain of few-nucleon systems at low energies. Previous and upcoming measurements of the breakup reaction with the use of the BINA detector enable systematic studies of the Star configurations at intermediate energies. A dedicated simulation was developed to study feasibility of registering such events with the required accuracy and to support the future data analysis. An additional rotation angle β has been introduced to parametrise the Star configurations. First results concerning the acceptance of certain segments of BINA for registering the Star configurations are presented.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Wyświetlanie 1-10 z 44

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