11 research outputs found
Measurement of differential cross sections for the deuteron-proton breakup reaction at 160 MeV
W. Parol, A. Kozela, K. Bodek, A. Deltuva, M. Eslami-Kalantari, J. Golak, N. Kalantar-Nayestanaki, G. Khatri,
St. Kistryn, J. Kubo´s, P. Kulessa, A. Magiera, H. Mardanpour, J. G. Messchendorp,
I. Mazumdar, R. Skibiński, I. Skwira-Chalot, A. Ramazani-Moghaddam-Arani, D. Rozpędzik,
H. Witała, B. Włoch, A. WrońskaDifferential cross sections for the deuteron breakup 1H(d, pp)n reaction were measured for a large set of 243
geometrical configurations at the beam energy of 80 MeV/nucleon. The cross-section data are normalized by the
luminosity factor obtained on the basis of a simultaneous measurement of the elastic-scattering channel and the
existing cross-section data for this process. The results are compared with the theoretical calculations modeling
nuclear interactions with and without taking into account the three-nucleon force (3NF) and the Coulomb
interaction. In the validated region of the phase space, both the Coulomb force and 3NF play an important
role in providing a good description of the data. There are also regions in which description improvements due
to the inclusion of 3NF are insufficient
Determination of phase space region for cross-check validation of the neutron detection in the BINA experiments
cd autorów: B. Włoch, K. Bodek, I Ciepał, M. Eslami-Kalantari, J. Golak, N.
Kalantar-Nayestanaki, G. Khatri, St. Kistryn, A. Kozela, J. Kuboś, P.
Kulessa, A. Magiera, H. Mardanpour, J. Messchendorp, I. Mazumdar,
W. Parol, A. Ramazani-Moghaddam-Arani, D. Rozpędzik, R. Skibiński, I.
Skwira-Chalot, H. Witała, A Wrońska, J. ZejmaDeuteron 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
Few-nucleon system dynamics studied via deuteron-deuteron collisions at 160 MeV
Pozostali autory: I. Ciepał, K. Bodek, N. Kalantar-Nayestanaki, G. Khatri, St. Kistryn,
A. Kozela, J. Kubo´s, P. Kulessa, A. Magiera, J. Messchendorp,
I. Mazumdar, W. Parol, R. Ramazani-Sharifabadi, D. Rozpedzik, I. Skwira-Chalot,
B. Włoch, A. Wrońska, J. ZejmaFour 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 threecluster
breakup
Current stage of studies of the star configurations at intermediate energies with the use of the BINA detector
cd autorów: Kazimierz Bodek, Izabela Ciepał,
Mohammad Eslami-Kalantari, Nasser Kalantar-Nayestanaki,
Ghanshyambhai Khatri, Stanisław Kistryn, Adam Kozela,
Joanna Kuboś, Paweł Kulessa, Andrzej Magiera,
Hossein Mardanpour, Johan Messchendorp, Indranil Mazumdar, Wiktor Parol,
Ahmad Ramazani-Moghaddam-Arani, Dagmara Rozpędzik, Izabela Skwira-Chalot,
Bogusław Włoch, Aleksandra Wrońska, Jacek ZejmaThe 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
Simulation of Star configurations in the BINA detector
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 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
Experimental studies of few-nucleon systems
Special issue, XLVI Extraordinary Congress of Polish Physicists, Warsaw, Poland, October 16–18, 2020Understanding nuclear interactions is the basis for describing nuclear systems, their structure and reac-tions. 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 un-derstanding the few-nucleon system dynamics. Measurements of observables (cross-section, vector and tensor 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 fol-lowing from our research and its current status are presented
Studies of Deuteron Breakup Reactions in Deuteron–Deuteron Collisions at 160 MeV with BINA
A rich set of differential cross section of the three-body 2H(d,dp)n breakup reaction at 160MeV
deuteron beam energy has been measured over a large range of the available phase space. The experiment
was performed at KVI in Groningen, the Netherlands, using the BINA detector. The cross-section data for
the breakup reaction have been normalized to the simultaneously measured 2H(d,d)2H elastic scattering cross
section. The breakup cross sections obtained for 147 kinematically complete configurations near the quasifree
scattering kinematics are compared to the recent approximate calculations for the three-cluster breakup in
deuteron–deuteron collisions. The cross sections for 294 kinematic configurations of the quasi-free scattering
regime, for which no theoretical calculations exist, are also presented. Besides the three-body breakup, semiinclusive
energy distributions for the four-body 2H(d,pp)nn breakup are reported
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
Measurement of differential cross section for proton-induced deuteron breakup at 108 MeV
The experiment was performed at CCB IFJ PAN in Kraków with the use of the BINA detector. The experimental program and data analysis of proton-induced deuteron breakup reaction at 108 MeV are presented
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