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114 results on '"A. K. Kurilkin"'

1. Experience in the Development and Production of Thermal-Neutron Detectors at the IBR-2 DSC (Review)

Author: A. V. Belushkin, A. A. Bogdzel’, V. I. Bodnarchuk, O. Daulbaev, V. V. Zhuravlev, A. K. Kurilkin, S. A. Kulikov, E. I. Litvinenko, V. M. Milkov, M. O. Petrova, V. I. Prikhod’ko, M. M. Podlesnyy, A. V. Churakov, and V. V. Shvetsov
Subjects: Instrumentation
Published: 2022

2. Analyzing Powers It11 and T20 of Dp -> Ppn Reaction at 400 Mev Investigated at Nuclotron

Author: Marian Janek, Vladimir P. Ladygin, Semen M. Piyadin, Yuri V. Gurchin, Alexander Yu. Isupov, Julia-Tatiana Karachuk, Anatoly N. Khrenov, Pavel K. Kurilkin, Alexei N. Livanov, Sergei G. Reznikov, Yaroslav T. Skhomenko, Gabriela Tarjanyiova, and Arkady A. Terekhin
Subjects: it11 and t20 analyzing power, dp →, ppn reaction, few nucleon correlations, Transportation and communications, HE1-9990, Science, Transportation engineering, TA1001-1280
Abstract: One of the tools to study spin structure of short range correlations (SRCs) and three nucleon forces is the measurement of the polarization observables. Deuteron induced reactions at intermediate energies are investigated at Internal Target Station (ITS) of Nuclotron through the dp elastic and dp → ppn reactions. Analyzing powers iT11 and T20 analyzing powers of dp → ppn reaction at 400 MeV are presented.
Published: 2017
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3. Angular Dependences of the Deuteron Analyzing Powers in Elastic dp Scattering at Large Transverse Momenta

Author: V. P. Ladygin, A. V. Averyanov, E. V. Chernykh, D. Enache, Yu. V. Gurchin, A. Yu. Isupov, M. Janek, J.-T. Karachuk, A. N. Khrenov, D. O. Krivenkov, P. K. Kurilkin, N. B. Ladygina, A. N. Livanov, S. M. Piyadin, S. G. Reznikov, A. A. Terekhin, A. V. Tishevsky, T. Uesaka, and I. S. Volkov
Subjects: Nuclear and High Energy Physics
Published: 2022

4. Latest results concerning short range correlations obtained in the dp elastic and dp breakup processes at Nuclotron, JINR

Author: Marian Janek, Vladimir P. Ladygin, Alexander V. Averyanov, Eugene V. Chernykh, Dan D. Enache, Yuri V. Gurchin, Alexandr Yu. Isupov, Julia-Tatiana Karachuk, Anatoly N. Khrenov, Dimitry O. Krivenkov, Pavel K. Kurilkin, Nadezhda B. Ladygina, Alexei N. Livanov, Olena Mezhenska, Semen M. Piyadin, Sergei G. Reznikov, Yaroslav T. Skhomenko, Arkady A. Terekhin, Alexei V. Tishevsky, Tomohiro Uesaka
Subjects: Physics, QC1-999
Abstract: Deuteron spin structure program is aimed on extraction of two and three nucleon forces information, including their spin dependent parts, from dp elastic and dp breakup processes investigated at intermediate energies. The dp elastic data were obtained at Internal Target Station of Nuclotron (JINR) in the energy range 400-1800 MeV using polarized deuteron beam. Strong sensitivity to the short range spin structure of the isoscalar nucleon-nucleon correlations is observed in deuteron analyzing powers. Preliminary results of the the cross section for the dp breakup reaction have been obtained at 400 MeV of deuteron energy.
Published: 2020
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5. Studying the Differential Cross Section of Elastic Deuteron–Proton Scattering at 1–2 GeV

Author: Yury Gurchin, A. K. Kurilkin, A. A. Terekhin, S. G. Reznikov, V. P. Ladygin, N. B. Ladygina, A. N. Khrenov, S. M. Piyadin, P. K. Kurilkin, and A. Isupov
Subjects: 010302 applied physics, Scattering cross-section, Physics, Nuclotron, 010308 nuclear & particles physics, Scattering, Nuclear Theory, Hadron, General Physics and Astronomy, 01 natural sciences, Nuclear physics, Deuterium, Proton scattering, 0103 physical sciences, Nuclear Experiment, Nucleon
Abstract: The results from studies of the differential cross section of elastic deuteron–proton scattering at 500–1000 MeV/nucleon on the Nuclotron Internal Targets Station are presented and compared to the available experimental data for similar energies, and to the results of theoretical calculations in the theory of relativistic multiple scattering.
Published: 2020

6. Study of the 16-Channel Scintillation Detector Prototype with Silicon Photomultiplier Readout

Author: S. G. Reznikov, Yu. V. Gurchin, V. P. Ladygin, P. K. Kurilkin, Ya.T. Skhomenko, A. Yu. Isupov, A. A. Terekhin, A. N. Khrenov, and A. V. Tishevskiy
Subjects: Physics, Nuclear and High Energy Physics, Channel (digital image), Physics::Instrumentation and Detectors, business.industry, Detector, Time resolution, Scintillator, Neutron radiation, Noise (electronics), Atomic and Molecular Physics, and Optics, Optics, Silicon photomultiplier, business, Voltage
Abstract: In the Laboratory of High-Energy Physics, 16-channel prototypes of detectors (with SiPM readout produced by Ketek and Hamamatsu) were developed for their application in zero-degree calorimetry and for measuring the profile of a low-energy neutron beam. This paper presents the method for determining the voltage of the breakpoint of the noise characteristic of silicon photomultipliers in the multichannel detector and its temperature dependence in the range from 27.7°C to 39.1°C. The response of SiPM to the LED source of calibrated light pulses has been studied and the time resolution has been obtained.
Published: 2020

7. Study of the dp Elastic and dp Breakup Complementary Processes Using Polarized and Unpolarized Beam of Nuclotron

Author: Marian Janek, Vladimir P. Ladygin, Alexander V. Averyanov, Eugene V. Chernykh, Dan D. Enache, Yuri V. Gurchin, Alexandr Yu. Isupov, Julia-Tatiana Karachuk, Anatoly N. Khrenov, Dimitry O. Krivenkov, Pavel K. Kurilkin, Nadezhda B. Ladygina, Alexei N. Livanov, Olena Mezhenska, Semen M. Piyadin, Sergei G. Reznikov, Yaroslav T. Skhomenko, Arkadyi A. Terekhin, Alexei V. Tishevsky, Tomohiro Uesaka, and Ivan S. Volkov
Subjects: Atomic and Molecular Physics, and Optics
Published: 2021

8. Directed, Elliptic, and Higher Order Flow Harmonics of Protons, Deuterons, and Tritons inAu+AuCollisions atsNN=2.4 GeV

Author: M. Lorenz, S. Spataro, A. Malige, Roman Gernhäuser, A. Kugler, J. Dreyer, I. Fröhlich, Alexander Belyaev, Tatiana Karavicheva, T. Hennino, C. Behnke, P. Tlusty, L. Chlad, C. Wendisch, T. Heinz, Kirill Lapidus, S. Spies, Yu. G. Sobolev, J. A. Garzón, C. Müntz, F. Seck, A. Blanco, P. Fonte, B. Kämpfer, I. Koenig, Laura Fabbietti, Ilya Selyuzhenkov, L. Lopes, P. Zumbruch, Eliane Epple, A. Ivashkin, R. Kotte, K. Pysz, T. Scheib, O. Pechenova, P. Bordalo, C. Deveaux, H. Ströbele, M. Gumberidze, J. Pietraszko, Fedor Guber, R. Greifenhagen, Andrey Reshetin, M. Mamaev, C. Sturm, Oliver Werner Arnold, N. Rathod, V. Wagner, R. H. Munzer, D. M. Mihaylov, P. Rosier, S. Maurus, Y. Parpottas, O. Svoboda, J. Stroth, L. Silva, J. Friese, F. Scozzi, J. Adamczewski-Musch, V. Pechenov, K. Nowakowski, Sergey V. Morozov, B. Kardan, O. Petukhov, Grzegorz Korcyl, T. Mahmoud, B. W. Kolb, R. Lalik, A. K. Kurilkin, Krzysztof Piasecki, T. Kunz, P. Sellheim, A. Rost, Udai Pratap Singh, Christoph Blume, P. Filip, Yu.V. Zanevsky, Witold Przygoda, C. Franco, M. B. Golubeva, P. Rodriguez-Ramos, W. Koenig, G. Kornakov, B. Ramstein, T. Matulewicz, D. Wójcik, S. P. Chernenko, Volker Metag, A. Sadovsky, J. Michel, A. Lebedev, J. Wirth, M. Szala, A. Belounnas, A. B. Kurepin, S. Harabasz, M. Traxler, Jerzy Smyrski, M. Böhmer, A. Mangiarotti, T. Galatyuk, Piotr Salabura, L. Naumann, L. Maier, P. K. Kurilkin, C. Höhne, M. G. Wiebusch, E. Usenko, H. Schuldes, Izabela Ciepał, J. C. Berger-Chen, R. Holzmann, J. Markert, S. Ramos, S. Hlavac, V. P. Ladygin, O. V. Fateev, O. Golosov, F. Kornas, M. Kohls, J. Siebenson, E. Schwab, A.P. Ierusalimov, A. Rustamov, and H. Tsertos
Subjects: Physics, Equation of state, Spectrometer, Nuclear Theory, Elliptic flow, General Physics and Astronomy, 01 natural sciences, 7. Clean energy, Baryon, Nuclear physics, Deuterium, Flow (mathematics), Harmonics, 0103 physical sciences, Rapidity, Nuclear Experiment, 010306 general physics
Abstract: Flow coefficients vn of the orders n=1-6 are measured with the High-Acceptance DiElectron Spectrometer (HADES) at GSI for protons, deuterons, and tritons as a function of centrality, transverse momentum, and rapidity in Au+Au collisions at sNN=2.4 GeV. Combining the information from the flow coefficients of all orders allows us to construct for the first time, at collision energies of a few GeV, a multidifferential picture of the angular emission pattern of these particles. It reflects the complicated interplay between the effect of the central fireball pressure on the emission of particles and their subsequent interaction with spectator matter. The high precision information on higher order flow coefficients is a major step forward in constraining the equation of state of dense baryonic matter.
Published: 2020

9. Charged-pion production in $$\mathbf {Au+Au}$$ collisions at $$\sqrt{\mathbf {s}_{\mathbf {NN}}} = 2.4~{\mathbf {GeV}}$$

Author: L. Silva, C. Wendisch, K. Nowakowski, Tatiana Karavicheva, C. Behnke, J. A. Garzón, A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, T. Galatyuk, E. Epple, S. Maurus, Piotr Salabura, L. Naumann, P. Rosier, P. Bordalo, Laura Fabbietti, C. Höhne, M. G. Wiebusch, E. Usenko, L. Maier, Christoph Blume, B. Kardan, V. Pechenov, M. Lorenz, Y. Parpottas, W. Koenig, H. Schuldes, S. Harabasz, O. Petukhov, M. Böhmer, A. Mangiarotti, A. K. Kurilkin, B. W. Kolb, E. Schwab, B. Kämpfer, A. Malige, Fedor Guber, P. Filip, A. Rost, M. Gumberidze, Yu. G. Sobolev, C. Müntz, R. Holzmann, J. Markert, S. Ramos, V. P. Ladygin, I. Koenig, Yu.V. Zanevsky, T. Heinz, P. Zumbruch, F. Scozzi, Izabela Ciepał, P. K. Kurilkin, Ilya Selyuzhenkov, T. Hennino, Oliver Werner Arnold, J. Adamczewski-Musch, M. B. Golubeva, P. Rodriguez-Ramos, A.P. Ierusalimov, F. Kornas, Grzegorz Korcyl, L. Chlad, H. Tsertos, O. Pechenova, A. Lebedev, Roman Gernhäuser, B. Ramstein, S. Hlavac, T. Matulewicz, A. Kugler, J. Pietraszko, A. Belounnas, A. B. Kurepin, M. Traxler, J. Dreyer, Alexander Belyaev, A. Sadovsky, A. Rustamov, J. C. Berger-Chen, S. Spies, C. Sturm, N. Rathod, S. Gläßel, C. Franco, Sergey V. Morozov, F. Seck, K. Pysz, T. Scheib, Witold Przygoda, M. Kohls, J. Siebenson, G. Kornakov, J. Friese, Udai Pratap Singh, C. Deveaux, R. Greifenhagen, O. Svoboda, R. Lalik, L. Lopes, Joachim Stroth, S. Spataro, I. Fröhlich, P. Tlusty, T. Mahmoud, P. Sellheim, H. Ströbele, V. Wagner, Andrey Reshetin, R. H. Munzer, D. M. Mihaylov, S. P. Chernenko, Volker Metag, J. Michel, J. Wirth, Krzysztof Piasecki, T. Kunz, M. Szala, Jerzy Smyrski, K. Lapidus, D. Wójcik, and O. V. Fateev
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Hadron, 01 natural sciences, ddc, Nuclear physics, Pion, 0103 physical sciences, Transverse mass, Rapidity, Impact parameter, Multiplicity (chemistry), 010306 general physics, Nucleon, Centrality
Abstract: We present high-statistic data on charged-pion emission from Au + Au collisions at $$\sqrt{s_{\mathrm{NN}}} = 2.4~\hbox {GeV}$$ s NN = 2.4 GeV (corresponding to $$E_{beam} = 1.23~\hbox {A GeV}$$ E beam = 1.23 A GeV ) in four centrality classes in the range 0–40% of the most central collisions. The data are analyzed as a function of transverse momentum, transverse mass, rapidity, and polar angle. Pion multiplicity per participating nucleon decreases moderately with increasing centrality. The polar angular distributions are found to be non-isotropic even for the most central event class. Our results on pion multiplicity fit well into the general trend of the available world data, but undershoot by $$2.5~\sigma $$ 2.5 σ data from the FOPI experiment measured at slightly lower beam energy. We compare our data to state-of-the-art transport model calculations (PHSD, IQMD, PHQMD, GiBUU and SMASH) and find substantial differences between the measurement and the results of these calculations.
Published: 2020

10. Proton-number fluctuations in sNN=2.4 GeV Au + Au collisions studied with the High-Acceptance DiElectron Spectrometer (HADES)

Author: H. Tsertos, N. Rathod, E. Schwab, J. Stroth, A. Sadovsky, Roman Gernhäuser, A. Kugler, A.P. Ierusalimov, L. Silva, Laura Fabbietti, S. Spies, G. Korcyl, Oliver Werner Arnold, W. Koenig, K. Nowakowski, Yu.V. Zanevsky, F. Scozzi, T. Galatyuk, J. Adamczewski-Musch, R. Lalik, A. Rustamov, V. P. Ladygin, F. Kornas, A. Lebedev, O. V. Fateev, A. Belounnas, M. Traxler, L. Chlad, P. Rodriguez-Ramos, B. W. Kolb, C. Sturm, P. Tlusty, Kirill Lapidus, V. Pechenov, Sergey V. Morozov, L. Lopes, F.F. Guber, L. Maier, A. K. Kurilkin, M. Szala, M. Böhmer, Yiannis Parpottas, E. Usenko, I. Koenig, A. Mangiarotti, Ilya Selyuzhenkov, B. Kämpfer, P. Filip, K. Pysz, T. Scheib, Alexey Kurepin, B. Kardan, O. Petukhov, J. A. Garzón, T. Hennino, A. Blanco, P. Fonte, H. Schuldes, M. Kohls, J. Siebenson, A. Rost, A. Ivashkin, B. Ramstein, S. Harabasz, C. Wendisch, M. Gumberidze, T. Matulewicz, R. Kotte, S. Spataro, Witold Przygoda, I. Fröhlich, P. Bordalo, O. Pechenova, Krzysztof Piasecki, T. Kunz, Izabela Ciepał, Jerzy Smyrski, T. Heinz, C. Höhne, J. C. Berger-Chen, J. Pietraszko, M. G. Wiebusch, Christoph Blume, M.B. Golubeva, Andrey Reshetin, V. Metag, H. Ströbele, Yu. G. Sobolev, R. H. Munzer, D. M. Mihaylov, C. Müntz, R. Holzmann, J. Markert, M. Lorenz, V. Wagner, P. Rosier, S. Maurus, Tatiana Karavicheva, S. Ramos, C. Behnke, P. K. Kurilkin, L. Naumann, Udai Pratap Singh, S. Hlavac, T. Mahmoud, A. Malige, D. Wójcik, P. Sellheim, S. P. Chernenko, P. Zumbruch, P. Salabura, J. Dreyer, Alexander Belyaev, J. Friese, J. Michel, J. Wirth, F. Seck, Eliane Epple, G. Kornakov, C. Franco, C. Deveaux, R. Greifenhagen, and O. Svoboda
Subjects: Physics, Proton, Spectrometer, 010308 nuclear & particles physics, Position and momentum space, 01 natural sciences, 7. Clean energy, Nuclear physics, Isospin, Phase space, 0103 physical sciences, Rapidity, Atomic number, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: We present an analysis of proton-number fluctuations in sNN=2.4 GeV Au197+Au197 collisions measured with the High-Acceptance DiElectron Spectrometer (HADES) at GSI Helmholtzzentrum fur Schwerionenforschung, Darmstadt. With the help of extensive detector simulations done with Isospin Quantum Molecular Dynamics (IQMD) transport model events including nuclear clusters, various nuisance effects influencing the observed proton cumulants have been investigated. Acceptance and efficiency corrections have been applied as a function of fine-grained rapidity and transverse momentum bins, as well as considering local track density dependencies. Next, the effects of volume changes within particular centrality selections have been considered and beyond-leading-order corrections have been applied to the data. The efficiency and volume-corrected proton number moments and cumulants Kn of orders n=1, 2, 3, and 4 have been obtained as a function of centrality and phase-space bin, as well as the corresponding correlators Cn. We find that the observed correlators show a power-law scaling with the mean number of protons, i.e., Cn∞«N»n, indicative of mostly long-range multiparticle correlations in momentum space. We also present a comparison of our results with Au + Au collision data obtained at the Relativistic Heavy Ion Collider (RHIC) at similar centralities but higher √sNN.
Published: 2020

11. Two-pion production in the second resonance region in π−p collisions with the High-Acceptance Di-Electron Spectrometer (HADES)

Author: J. Stroth, Sergey V. Morozov, F.F. Guber, E. Schwab, B. Kämpfer, A. Sadovsky, Yiannis Parpottas, G. Korcyl, R. Lalik, O. V. Fateev, M. Böhmer, Alexey Kurepin, D. Dittert, A.P. Ierusalimov, W. Koenig, M. Gumberidze, C. Franco, H. Ströbele, V. Wagner, T. Mahmoud, A. Prozorov, P. Sellheim, S. Spataro, V. P. Ladygin, L. Silva, I. Fröhlich, H. Schuldes, Roman Gernhäuser, K. Nowakowski, J. Dreyer, A. Kugler, Alexander Belyaev, C. Müntz, C. Wendisch, Oliver Werner Arnold, T. Galatyuk, Yu.V. Zanevsky, J. Kuboś, C. Höhne, L. Lopes, T. Kunz, F. Kornas, M. G. Wiebusch, Izabela Ciepał, Piotr Salabura, C. Sturm, S. Spies, F. Scozzi, J. A. Garzón, E. T. Atomssa, L. Chlad, G. Kornakov, J. Adamczewski-Musch, L. Maier, Laura Fabbietti, J. Siebenson, B. Ramstein, P. Strzempek, M.B. Golubeva, P. Rodriguez-Ramos, P. Chudoba, J. Biernat, A. K. Kurilkin, S. Linev, A. Lebedev, B. W. Kolb, Andrey Reshetin, R. Holzmann, J. Markert, V. Metag, V. Pechenov, A. Rost, A. Belounnas, S. Maurus, T. Heinz, M. Traxler, R. H. Munzer, D. M. Mihaylov, M. Lorenz, B. Kardan, O. Petukhov, O. Vazquez-Doce, A. V. Sarantsev, C. Behnke, J. C. Berger-Chen, P. Tlusty, Kirill Lapidus, V. Mikhaylov, A. Malige, F. Seck, H. Tsertos, V. A. Nikonov, P. Zumbruch, I. Koenig, Eliane Epple, S. Harabasz, O. Pechenova, N. Rathod, J. Pietraszko, C. Deveaux, R. Greifenhagen, O. Svoboda, K. Schmidt-Sommerfeld, Udai Pratap Singh, Witold Przygoda, J. Friese, T. Scheib, C. Ungethüm, P. K. Kurilkin, L. Naumann, T. Hennino, D. Wójcik, M. Szala, A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, Christoph Blume, Jerzy Smyrski, S. P. Chernenko, J. Michel, and J. Wirth
Subjects: Physics, Excitation function, Particle physics, 010308 nuclear & particles physics, Branching fraction, Partial wave analysis, Nuclear Theory, Resonance, Coupling (probability), 7. Clean energy, 01 natural sciences, Baryon, Pion, 0103 physical sciences, Production (computer science), Nuclear Experiment, 010306 general physics
Abstract: Pion induced reactions provide unique opportunities for an unambiguous description of baryonic resonances and their coupling channels by means of a partial wave analysis. Using the secondary pion beam at SIS18, the two pion production in the second resonance region has been investigated to unravel the role of the $N(1520) \frac{3}{2}^-$ resonance in the intermediate $\rho$ production. Results on exclusive channels with one pion ($\pi^{-}p$) and two pions ($\pi^{+}\pi^{-}n$, $\pi^{0}\pi^{-}p$) in the final state measured in the $\pi^{-}-p$ reaction at four different pion beam momenta (0.650, 0.685, 0.733, and 0.786 GeV/c) are presented. The excitation function of the different partial waves and $\Delta\pi$, $N\sigma$ and $N\rho$ isobar configurations is obtained, using the Bonn-Gatchina partial wave analysis. The $N(1520) \frac{3}{2}^-$ resonance is found to dominate the $N\rho$ final state with the branching ratio $BR=12.2 \pm 1.9\%$.
Published: 2020

12. Identical pion intensity interferometry at $\sqrt{s_{\mathrm{NN}}}=2.4~\hbox {GeV}$: HADES collaboration

Author: Christoph Blume, Marek Palka, O. V. Fateev, I. Koenig, S. Harabasz, F. Seck, Ilya Selyuzhenkov, P. Tlusty, P. Strzempek, C. Franco, A. Dybczak, J. C. Berger-Chen, J. Biernat, Tatiana Karavicheva, C. Behnke, C. Wendisch, J. Dreyer, B. W. Kolb, Alexander Belyaev, B. Ramstein, L. Silva, A. Blanco, P. Fonte, S. Spataro, T. Matulewicz, S. Hlavac, Laura Fabbietti, A. Ivashkin, R. Kotte, K. Nowakowski, C. Deveaux, R. Greifenhagen, I. Fröhlich, C. Höhne, M. G. Wiebusch, T. Heinz, A. Sadovsky, O. Svoboda, P. Zumbruch, P. Salabura, H. Tsertos, E. Usenko, L. Chlad, M. Lorenz, Andrey Reshetin, L. Lopes, J. Siebenson, Joachim Stroth, Roman Gernhäuser, E. Epple, S. Maurus, A. Kugler, G. Kornakov, H. Schuldes, R. H. Munzer, D. M. Mihaylov, J. Friese, A. Rost, T. Galatyuk, F. Kornas, F. Scozzi, J. Adamczewski-Musch, E. Schwab, L. Naumann, R. Holzmann, P. Rosier, L. Maier, J. Markert, Krzysztof Piasecki, T. Kunz, S. Ramos, B. Kämpfer, S. Spies, J. A. Garzón, Witold Przygoda, G. Korcyl, R. Lalik, A.P. Ierusalimov, M. Gumberidze, T. Scheib, C. Sturm, T. Hennino, B. Kardan, M. Böhmer, A. Mangiarotti, Sergey V. Morozov, O. Petukhov, Fedor Guber, Oliver Werner Arnold, V. P. Ladygin, Yu.V. Zanevsky, S. P. Chernenko, Volker Metag, J. Michel, J. Wirth, M. B. Golubeva, P. Rodriguez-Ramos, Yu. G. Sobolev, M. Szala, C. Müntz, A. K. Kurilkin, O. Pechenova, J. Pietraszko, P. Filip, K. Lapidus, V. Pechenov, P. Bordalo, D. Wójcik, Y. Parpottas, A. Lebedev, A. Belounnas, A. B. Kurepin, M. Traxler, W. Koenig, H. Ströbele, V. Wagner, T. Mahmoud, P. Sellheim, P. K. Kurilkin, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and HADES
Subjects: Nuclear and High Energy Physics, dimension: 3, media_common.quotation_subject, interferometer, transverse momentum: low, Extrapolation, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, beam: energy, energy dependence, Nuclear physics, Pion, 0103 physical sciences, Perpendicular, correlation function, Eccentricity (behavior), 010306 general physics, Nuclear Experiment, impact parameter, media_common, pi pi, Physics, energy: high, 010308 nuclear & particles physics, Plane (geometry), Transverse plane, Correlation function (statistical mechanics), 2.4 GeV-cms/nucleon, HADES, space-time, Impact parameter
Abstract: High-statistics $$\pi ^-\pi ^-$$π-π- and $$\pi ^+\pi ^+$$π+π+ femtoscopy data are presented for Au + Au collisions at $$\sqrt{s_\mathrm{NN}} = 2.4~\hbox {GeV}$$sNN=2.4GeV, measured with HADES at SIS18/GSI. The experimental correlation functions allow the determination of the space-time extent of the corresponding emission sources via a comparison to models. The emission source, parametrized as three-dimensional Gaussian distribution, is studied in dependence on pair transverse momentum, azimuthal emission angle with respect to the reaction plane, collision centrality and beam energy. For all centralities and transverse momenta, a geometrical distribution of ellipsoidal shape is found in the plane perpendicular to the beam direction with the larger extension perpendicular to the reaction plane. For large transverse momenta, the corresponding eccentricity approaches the initial eccentricity. The eccentricity is smallest for most central collisions, where the shape is almost circular. The magnitude of the tilt angle of the emission ellipsoid in the reaction plane decreases with increasing centrality and increasing transverse momentum. All source radii increase with centrality, largely exhibiting a linear rise with the cube root of the number of participants. A substantial charge-sign difference of the source radii is found, appearing most pronounced at low transverse momentum. The extracted source parameters are consistent with the extrapolation of their energy dependence down from higher energies.
Published: 2020

13. Correlated pion-proton pair emission off hot and dense QCD matter

Author: S. Spataro, I. Fröhlich, A. K. Kurilkin, R. Holzmann, J. Markert, S. Ramos, C. Franco, V. P. Ladygin, L. Lopes, H. Ströbele, V. Wagner, P. Filip, C. Wendisch, Joachim Stroth, Tatiana Karavicheva, C. Behnke, E. Usenko, O. Pechenova, O. V. Fateev, M. Böhmer, A. Mangiarotti, E. Schwab, P. Bordalo, L. Fabbietti, S. Harabasz, J. Pietraszko, A.P. Ierusalimov, Witold Przygoda, C. Deveaux, F. Kornas, C. Sturm, Y. Parpottas, H. Schuldes, R. Greifenhagen, L. Silva, O. Svoboda, K. Pysz, T. Scheib, T. Galatyuk, A. Lebedev, C. Höhne, M. G. Wiebusch, F. Scozzi, K. Nowakowski, A. Belounnas, A. B. Kurepin, M. Traxler, T. Heinz, Yu. G. Sobolev, J. Adamczewski-Musch, J. Dreyer, Alexander Belyaev, L. Naumann, H. Tsertos, B. W. Kolb, C. Müntz, J. Friese, Izabela Ciepał, P. Zumbruch, P. Salabura, M. Lorenz, W. Koenig, B. Kämpfer, Sergey V. Morozov, P. K. Kurilkin, V. Pechenov, Yu.V. Zanevsky, G. Kornakov, M. B. Golubeva, P. Rodriguez-Ramos, A. Malige, G. Korcyl, R. Lalik, E. Epple, P. Rosier, L. Maier, S. Hlavac, J. A. Garzón, Udai Pratap Singh, J. C. Berger-Chen, F. Seck, M. Kohls, J. Siebenson, S. Maurus, M. Gumberidze, Roman Gernhäuser, A. Kugler, I. Koenig, Ilya Selyuzhenkov, S. Spies, L. Chlad, N. Rathod, B. Kardan, O. Petukhov, Fedor Guber, Oliver Werner Arnold, B. Ramstein, T. Matulewicz, A. Sadovsky, A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, Christoph Blume, M. Szala, T. Mahmoud, P. Sellheim, A. Rost, Jerzy Smyrski, K. Lapidus, T. Hennino, D. Wójcik, S. P. Chernenko, Volker Metag, J. Michel, J. Wirth, Krzysztof Piasecki, T. Kunz, P. Tlusty, Andrey Reshetin, R. H. Munzer, D. M. Mihaylov, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)
Subjects: energy [excited state], Proton, Freezeout, transverse momentum dependence, 01 natural sciences, energy [hadron], Invariant mass, heavy-ion reactions, Nuclear Experiment (nucl-ex), Nuclear Experiment, mass [Delta(1232)], Physics, Baryonic resonances, Heavy-ion reactions, education.field_of_study, fireball, Breit-Wigner, hadron: energy, pi p: correlation, kinetic [energy], ddc, Isospin, Nucleon, Nuclear and High Energy Physics, 2.42 GeV-cms/nucleon, QC1-999, Population, correlation [pi p], FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], transverse momentum, Kinetic energy, Nuclear physics, isospin, Pion, 0103 physical sciences, Delta(1232): mass, matter [quantum chromodynamics], ddc:530, 010306 general physics, education, quantum chromodynamics: matter, energy: kinetic, 010308 nuclear & particles physics, background, excited state: energy, rapidity, HADES, freezeout, Energy (signal processing)
Abstract: In this letter we report the first multi-differential measurement of correlated pion-proton pairs from 2 billion Au+Au collisions at \sqrt{s_{NN}} = 2.42 GeV collected with HADES. In this energy regime the population of \Delta(1232) resonances plays an important role in the way energy is distributed between intrinsic excitation energy and kinetic energy of the hadrons in the fireball. The triple differential d3N/dM{\pi}pdpTdy distributions of correlated {\pi}p pairs have been determined by subtracting the {\pi}p combinatorial background using an iterative method. The invariant-mass distributions in the \Delta(1232) mass region show strong deviations from a Breit-Wigner function with vacuum width and mass. The yield of correlated pion-proton pairs exhibits a complex isospin, rapidity and transverse-momentum dependence. In the invariant mass range 1.1 < Minv (GeV/c2) < 1.4, the yield is found to be similar for {\pi}+p and {\pi}-p pairs, and to follow a power law ^{\alpha}, where is the mean number of participating nucleons. The exponent {\alpha} depends strongly on the pair transverse momentum (pT) while its pT-integrated and charge-averaged value is {\alpha} = 1.5 \pm 0.08stat \pm 0.2sys., Comment: 9 pages, 9 figures
Published: 2020
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14. Calibration procedure of the ΔE–E detectors for dp breakup investigation at nuclotron

Author: J. T. Karachuk, Yu. V. Gurchin, S. G. Reznikov, V. P. Ladygin, P. K. Kurilkin, A. N. Khrenov, A. A. Terekhin, Marian Janek, A. K. Kurilkin, S. M. Piyadin, A. Yu. Isupov, A. N. Livanov, G. Martinska, and Gabriela Tarjányiová
Subjects: Physics, Nuclear and High Energy Physics, Nuclotron, Radiation, 010308 nuclear & particles physics, Detector, Monte Carlo method, Astrophysics::Instrumentation and Methods for Astrophysics, Breakup, 01 natural sciences, Atomic and Molecular Physics, and Optics, Computational physics, Amplitude, 0103 physical sciences, Calibration, Mass spectrum, Radiology, Nuclear Medicine and imaging, 010306 general physics, Energy (signal processing)
Abstract: Calibration procedure of ΔE − E detectors used in dp breakup reaction measurement in the framework of DSS project is discussed. Time information from all PMTs along with amplitude information and known energy values of pp quasi elastic reaction are used to find calibration coefficients for ΔE and E detectors. Calibration coefficients are used to recover deposited particle energies. ΔE vs. E plots, energies and missing mass spectra are compared with geant4 Monte Carlo simulation. Missing mass for particular physical configuration is calculated as a test of the calibration procedure quality.
Published: 2018

15. Differential Cross Section for Elastic Deuteron–Proton Scattering at the Energy of 700 MeV per Nucleon

Author: A. K. Kurilkin, A. A. Terekhin, N. B. Ladygina, S. G. Reznikov, V. P. Ladygin, A. N. Khrenov, A. Yu. Isupov, S. M. Piyadin, Yu. V. Gurchin, and P. K. Kurilkin
Subjects: Physics, Elastic scattering, Nuclear and High Energy Physics, Nuclotron, 010308 nuclear & particles physics, Scattering, Nuclear Theory, Hadron, Elementary particle, 01 natural sciences, Atomic and Molecular Physics, and Optics, Nuclear physics, Baryon, Deuterium, 0103 physical sciences, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: The results of measurements of the differential cross section for elastic deuteron–proton scattering at the energy of 700 MeV per nucleon that were performed at the internal target station of the nuclotron at the Joint Institute for Nuclear Research (JINR, Dubna) are presented. These data were obtained at angles in the range between 70◦ and 120◦ in the c.m. frame. The angular dependence obtained in this way is compared with world-averaged data at similar energies and with the results of theoretical calculations performed within the relativistic theory of multiple scattering.
Published: 2017

16. Calibration procedure of the ΔE − E detectors for Deuteron breakup reaction investigation at intermediate energies at nuclotron

Author: Alexander Isupov, Olena Mezhenska, Yuriy V. Gurchin, Marian Janek, J. T. Karachuk, J. Urban, V. P. Ladygin, A. N. Khrenov, Aleksey N. Livanov, Arkadiy A. Terekhin, S. M. Piyadin, P. K. Kurilkin, and S. G. Reznikov
Subjects: Physics, Elastic scattering, Nuclear physics, Scintillation, Nuclotron, Deuterium, Physics::Instrumentation and Detectors, Nuclear Theory, Calibration, Particle, Spin structure, Nuclear Experiment, Breakup
Abstract: The aim of the deuteron spin structure (DSS) experiment is to obtain polarization observables in dp elastic scattering and in dp breakup at large CMS angles (> 60°). The dp breakup reaction has been investigated by the scintillation detectors placed at the vicinity of the Internal Target Station (ITS) of Nuclotron. Calibration data have been obtained at the deuteron energy of 300 - 500 MeV. The main goal of this report is to present the calibration procedure of the ΔE - E detectors. Calibration coefficients are used to recover the deposited particle energy.
Published: 2021

17. Study of the 16-channel scintillation detector prototype with silicon photomultipliers readout

Author: Olena Mezhenska, A. A. Terekhin, P. K. Kurilkin, S. G. Reznikov, Yuri V. Gurchin, Vasily Kushpil, Marian Janek, V. P. Ladygin, A. N. Khrenov, Aleksander Yu. Isupov, and Aleksey V. Tishevsky
Subjects: Physics, Nuclotron, Physics::Instrumentation and Detectors, business.industry, Detector, Scintillator, Noise (electronics), Signal, Optics, Silicon photomultiplier, Nuclear Experiment, business, Beam (structure), Voltage
Abstract: The paper presents measurements of the noise characteristics of silicon photomultipliers in the temperature range from 27.7 °C to 39.1 °C, as well as study of the response of the detector prototypes with Ketek and Hamamatsu SiPM readout to the light source at different voltages. The prototype with SiPM readout from Ketek was tested at the Joint Institute for Nuclear Research Nuclotron deuteron beam at the energy of 4 GeV/nucleon. Time resolution and amplitude of the signal have been estimated.
Published: 2021

18. Analyzing power in Quasi-elastic proton-proton scattering at 500 and 650 MeV/nucleon

Author: Julia T. Karachuk, Marian Janek, E. V. Chernykh, I. S. Volkov, D. O. Krivenkov, S. G. Reznikov, V. P. Ladygin, P. K. Kurilkin, A. N. Livanov, S. M. Piyadin, A. N. Khrenov, A. V. Averyanov, A. V. Tishevsky, Yury Gurchin, D. Enache, I. E. Vnukov, A. A. Terekhin, Alexander Isupov, and Yaroslav T. Skhomenko
Subjects: Physics, Nuclotron, Proton, Scattering, media_common.quotation_subject, Nuclear Theory, Asymmetry, Nuclear physics, Amplitude, Scintillation counter, Physics::Accelerator Physics, Nuclear Experiment, Nucleon, Beam (structure), media_common
Abstract: Analyzing power in elastic proton-proton scattering was obtained at the Nuclotron Internal Target Station using a polarized deuteron beam and a polyethylene target. The selection of useful events was performed using the time and amplitude information from scintillation counters. The asymmetry on hydrogen was obtained by the subtraction of the carbon background. The obtained analyzing power values are compared with the predictions of the partial-wave analysis SAID at the beam energies of 500 and 650 MeV/nucleon.
Published: 2021

19. The differential cross section in deuteron-proton elastic scattering at 500, 750 and 900 MeV/nucleon

Author: A. N. Khrenov, A. Yu. Isupov, S. G. Reznikov, Yu. V. Gurchin, P. K. Kurilkin, S. M. Piyadin, Marian Janek, A. K. Kurilkin, N. B. Ladygina, V. P. Ladygin, and A. A. Terekhin
Subjects: Elastic scattering, Physics, Nuclear and High Energy Physics, Nuclotron, Proton, 010308 nuclear & particles physics, Scattering, Hadron, 01 natural sciences, Nuclear physics, Deuterium, 0103 physical sciences, Nuclear Experiment, 010306 general physics, Nucleon, Beam (structure)
Abstract: The results on the differential cross section of dp elastic scattering obtained at the Internal Target Station at the Nuclotron JINR at the energies of 500, 750 and 900MeV/nucleon are presented. The measurements have been performed using an unpolarized deuteron beam and polyethylene foil target. The data have been obtained in the angular range of $ 70^{\circ}$ - $ 120^{\circ}$ in the cms. The angular dependences of the data from the present experiment are compared with the world experimental data obtained at nearby energies as well as with the theoretical calculations performed within the relativistic multiple scattering theory. The behavior of the differential cross section at the fixed scattering angles covering the total cms energy region of $ \sqrt{s} = 3.1 -3.42$ GeV is in qualitative agreement with the s power-law dependence.
Published: 2019

20. Strong Absorption of Hadrons with Hidden and Open Strangeness in Nuclear Matter

Author: Grzegorz Korcyl, S. P. Chernenko, V. Metag, L. Chlad, T. Hennino, O. V. Fateev, J. A. Garzón, J. Michel, T. Mahmoud, D. Dittert, L. Silva, A. Blanco, P. Fonte, P. Chudoba, M. Lorenz, Yu.V. Zanevsky, V. P. Ladygin, A. Ivashkin, J. Dreyer, Alexander Belyaev, R. Kotte, A. Prozorov, K. Nowakowski, S. Spataro, S. Linev, P. Sellheim, V. Pechenov, J. Wirth, T. Kunz, T. Heinz, T. Galatyuk, H. Tsertos, P. Zumbruch, P. Rodriguez-Ramos, J. Kuboś, C. Behnke, P. Salabura, A. Rost, S. Harabasz, H. Schuldes, I. Fröhlich, M.B. Golubeva, A. K. Kurilkin, M. Szala, Sergey V. Morozov, P. Tlusty, Kirill Lapidus, O. Vazquez Doce, T. Scheib, V. Mikhaylov, Christoph Blume, H. Ströbele, Izabela Ciepał, L. Maier, O. Pechenova, A. Malige, B. Kämpfer, V. Wagner, W. Koenig, F. Seck, L. Lopes, Andrey Reshetin, Yiannis Parpottas, J. Pietraszko, C. Ungethüm, S. Maurus, Oliver Werner Arnold, Eliane Epple, M. Gumberidze, C. Höhne, M. G. Wiebusch, C. Wendisch, R. H. Munzer, D. M. Mihaylov, Roman Gernhäuser, Alexey Kurepin, A. Kugler, E. T. Atomssa, Jerzy Smyrski, B. Ramstein, S. Spies, J. Siebenson, E. Schwab, B. Kardan, Laura Fabbietti, C. Müntz, O. Petukhov, A. Sadovsky, P. Strzempek, J. Biernat, R. Holzmann, N. Rathod, J. Stroth, J. Markert, A.P. Ierusalimov, P. K. Kurilkin, R. Lalik, A. Lebedev, F. Kornas, A. Belounnas, M. Traxler, F.F. Guber, M. Böhmer, Catalina Curceanu, B. W. Kolb, F. Scozzi, J. Adamczewski-Musch, Alessandro Scordo, I. Koenig, J. C. Berger-Chen, G. Kornakov, C. Franco, C. Deveaux, R. Greifenhagen, O. Svoboda, K. Schmidt-Sommerfeld, J. Friese, Witold Przygoda, K. Piscicchia, L. Naumann, D. Wójcik, C. Sturm, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), HADES, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Subjects: Meson, Hadron, FOS: Physical sciences, General Physics and Astronomy, Strangeness, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], meson, 01 natural sciences, Nuclear physics, Momentum, strangeness, K-: absorption, 0103 physical sciences, strong coupling, Nuclear Experiment (nucl-ex), 010306 general physics, Absorption (electromagnetic radiation), Nuclear Experiment, Physics, nucleus, hadron: absorption, Coupling (probability), Nuclear matter, Neutron star, Automatic Keywords, HADES, nuclear matter, beam: momentum, Elementary Particles and Fields, acceptance
Abstract: We present the first observation of K- and \phi absorption within nuclear matter by means of \pi- -induced reactions on C and W targets at an incident beam momentum of 1.7 GeV/c studied with HADES at SIS18/GSI. The double ratio (K-/K+)W / (K-/K+)C is found to be 0.319 \pm 0.009(stat)+0.014-0.012 (syst) indicating a larger absorption of K- in heavier targets as compared to lighter ones. The measured \phi/K- ratios in \pi-+C and \pi^- +W reactions within the HADES acceptance are found to be equal to $0.55 \pm 0.03(stat)+0.06-0.07$ (syst) and to $0.63 \pm 0.05(stat)-0.11+0.11$ (syst), respectively. The similar ratios measured in the two different reactions demonstrate for the first time experimentally that the dynamics of the \phi meson in nuclear medium is strongly coupled to the K- dynamics. The large difference in the \phi production off C and W nuclei is discussed in terms of a strong \phiN in-medium coupling., Comment: 6 pages, 3 figures
Published: 2019

21. Probing dense baryon-rich matter with virtual photons

Author: I. Koenig, J. Dreyer, Alexander Belyaev, Yiannis Parpottas, Christian Sturm, Alexey Kurepin, M. Szala, Andrey Reshetin, Christoph Blume, Yu.V. Zanevsky, Vladimir Pechenov, F.F. Guber, F. Seck, Eliane Epple, L. Silva, D. M. Mihaylov, A. Kugler, L. Lopes, V. P. Ladygin, K. Nowakowski, A. Mangiarotti, Joachim Stroth, S. Spies, A. Sadovsky, Laura Fabbietti, P. Rodriguez-Ramos, B. W. Kolb, A.P. Ierusalimov, V. Wagner, T. Scheib, J. Pietraszko, Olga Pechenova, H. Tsertos, M. Boehmer, C. Muentz, V. Metag, P. Rosier, P. Bordalo, R. Gernhaeuser, A. Dybczak, S. Maurus, S. Spataro, C. Hoehne, B. Ramstein, R. Muenzer, T. Mahmoud, J. C. Berger-Chen, Sergey V. Morozov, M. Lorenz, Malgorzata Gumberidze, L. Maier, D. Dittert, Tetyana Galatyuk, P. Sellheim, Oliver Werner Arnold, Behruz Kardan, H. Stroebele, R. Holzmann, S. Hlavac, A. Rost, S. Ramos, P. Salabura, G. Korcyl, J. A. Garzón, R. Lalik, A. K. Kurilkin, Yu. G. Sobolev, Jörn Adamczewski-Musch, Marek Palka, Wolfgang Koenig, Tatiana Karavicheva, Ilya Selyuzhenkov, Erwin Schwab, J. Siebenson, C. Behnke, T. Hennino, P. K. Kurilkin, P. Filip, M. G. Wiebusch, B. Kaempfer, E. Usenko, P. Strzempek, O. Petukhov, J. Biernat, A. Blanco, P. Fonte, H. Schuldes, A. Ivashkin, Torsten Heinz, L. Chlad, R. Kotte, F. Scozzi, O. V. Fateev, C. Franco, I. Froehlich, Peter Zumbruch, S. Harabasz, A. Lebedev, G. Kornakov, A. Belounnas, M. Traxler, Jochen Markert, Christian Wendisch, C. Deveaux, R. Greifenhagen, L. Naumann, O. Svoboda, Witold Przygoda, J. Friese, T. Kunz, M.B. Golubeva, P. Tlusty, Kirill Lapidus, S. P. Chernenko, J. Michel, J. Wirth, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), HADES, and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Big Bang, radiation: electromagnetic, Photon, heavy ion: scattering, Strong interaction, General Physics and Astronomy, Virtual particle, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, 010305 fluids & plasmas, Nuclear physics, decoupling, pressure, photon: emission, 0103 physical sciences, 010306 general physics, neutron star, QCD matter, quantum chromodynamics: matter, Quantum chromodynamics, Physics, electron positron, matter: strong interaction, High Energy Physics::Phenomenology, big bang, Baryon, 13. Climate action, Quark–gluon plasma, spectral, High Energy Physics::Experiment, photon: virtual
Abstract: International audience; About 10 μs after the Big Bang, the universe was filled—in addition to photons and leptons—with strong-interaction matter consisting of quarks and gluons, which transitioned to hadrons at temperatures close to kT = 150 MeV and densities several times higher than those found in nuclei. This quantum chromodynamics (QCD) matter can be created in the laboratory as a transient state by colliding heavy ions at relativistic energies. The different phases in which QCD matter may exist depend for example on temperature, pressure or baryochemical potential, and can be probed by studying the emission of electromagnetic radiation. Electron–positron pairs emerge from the decay of virtual photons, which immediately decouple from the strong interaction, and thus provide information about the properties of QCD matter at various stages. Here, we report the observation of virtual photon emission from baryon-rich QCD matter. The spectral distribution of the electron–positron pairs is nearly exponential, providing evidence for a source of temperature in excess of 70 MeV with constituents whose properties have been modified, thus reflecting peculiarities of strong-interaction QCD matter. Its bulk properties are similar to the dense matter formed in the final state of a neutron star merger, as apparent from recent multimessenger observation.
Published: 2019

22. Identical pion intensity interferometry in central Au + Au collisions at 1.23 A GeV

Author: I. Koenig, O. V. Fateev, P. Bordalo, P. K. Kurilkin, Laura Fabbietti, B. Kämpfer, Y. Parpottas, C. Deveaux, R. Greifenhagen, E. Usenko, O. Svoboda, A. Dybczak, Yu.V. Zanevsky, J. C. Berger-Chen, R. Lalik, Roman Gernhäuser, C. Wendisch, M. Gumberidze, H. Schuldes, O. Pechenova, A. Kugler, R. Holzmann, J. Markert, B. Ramstein, G. Kornakov, P. Tlusty, S. Ramos, T. Galatyuk, J. Dreyer, Alexander Belyaev, F. Scozzi, A. Blanco, P. Fonte, M. B. Golubeva, S. P. Chernenko, S. Spataro, I. Fröhlich, P. Rodriguez-Ramos, A. Ivashkin, A. Lebedev, R. Kotte, J. Pietraszko, V. P. Ladygin, S. Spies, Volker Metag, L. Naumann, P. Rosier, Witold Przygoda, L. Maier, M. Böhmer, A. Mangiarotti, C. Höhne, M. G. Wiebusch, A. K. Kurilkin, E. Epple, L. Lopes, S. Maurus, J. Michel, L. Silva, Joachim Stroth, F. Seck, A. Belounnas, A. B. Kurepin, J. Friese, C. Franco, M. Traxler, K. Nowakowski, B. W. Kolb, M. Lorenz, C. Sturm, S. Hlavac, P. Filip, A. Rost, J. Adamczewski-Musch, S. Morozov, J. Wirth, T. Mahmoud, J. Siebenson, E. Schwab, P. Strzempek, M. Szala, J. A. Garzón, Andrey Reshetin, P. Sellheim, J. Biernat, A.P. Ierusalimov, R. H. Munzer, D. M. Mihaylov, T. Scheib, T. Heinz, W. Koenig, P. Zumbruch, P. Salabura, Tatiana Karavicheva, C. Behnke, Krzysztof Piasecki, T. Kunz, H. Ströbele, Christoph Blume, V. Wagner, K. Lapidus, D. Wójcik, I. Selyuzhenkov, H. Tsertos, B. Kardan, Marek Palka, O. Petukhov, S. Harabasz, Fedor Guber, T. Hennino, Oliver Werner Arnold, Grzegorz Korcyl, L. Chlad, T. Matulewicz, A. Sadovsky, Yu. G. Sobolev, C. Müntz, V. Pechenov, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), HADES, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Subjects: correlation: two-particle, Nuclear and High Energy Physics, heavy ion: scattering, dimension: 3, Gaussian, interferometer, transverse momentum: low, potential: Coulomb, Extrapolation, pi, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Computer Science::Digital Libraries, energy dependence, Nuclear physics, symbols.namesake, Pion, Correlation function, 0103 physical sciences, correlation function: two-particle, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, energy: low, Physics, 010308 nuclear & particles physics, Radius, Hanbury-Brown-Twiss effect, lcsh:QC1-999, Intensity (physics), Interferometry, HADES, symbols, lcsh:Physics, Excitation, experimental results
Abstract: We investigate identical pion HBT intensity interferometry for central Au+Au collisions at 1.23A GeV. High-statistics $\pi^-\pi^-$ and $\pi^+\pi^+$ data are measured with HADES at SIS18/GSI. The radius parameters, derived from the correlation function depending on relative momenta in the longitudinal-comoving system and parametrized as three-dimensional Gaussian distribution, are studied as function of transverse momentum. A substantial charge-sign difference of the source radii is found, particularly pronounced at low transverse momentum. The extracted Coulomb-corrected source parameters agree well with a smooth extrapolation of the center-of-mass energy dependence established at higher energies, extending the corresponding excitation functions down towards a very low energy. Our data would thus rather disfavour any strong energy dependence of the radius parameters in the low energy region., Comment: 7 pages, 5 figures, updated author and grant lists
Published: 2019

23. Angular and energy dependence of $A_y$, $A_{yy}$ and $A_{xx}$ analyzing powers in dp elastic scattering and dp breakup reaction investigation

Author: Olena Mezhenska, J. T. Karachuk, Yaroslav T. Skhomenko, Marian Janek, E. V. Chernykh, M. Janek, D. Enache, A. N. Livanov, A. Isupov, V. P. Ladygin, D. O. Krivenkov, N. B. Ladygina, A. A. Terekhin, P. K. Kurilkin, Yury Gurchin, A. V. Tishevsky, S. M. Piyadin, S. G. Reznikov, A. V. Averyanov, and Tomohiro Uesaka
Subjects: Physics, Elastic scattering, Atomic physics, Breakup, Energy (signal processing)
Published: 2020

24. Latest results concerning short range correlations obtained in the dp elastic and dp breakup processes at Nuclotron, JINR

Author: Alexei N. Livanov, Olena Mezhenska, D. Enache, Dimitry O. Krivenkov, Eugene V. Chernykh, A. A. Terekhin, N. B. Ladygina, J. T. Karachuk, Alexander V. Averyanov, Marian Janek, S. M. Piyadin, V. P. Ladygin, A. N. Khrenov, S. G. Reznikov, Alexei V. Tishevsky, Yuri V. Gurchin, P. K. Kurilkin, A. Isupov, Tomohiro Uesaka, and Yaroslav T. Skhomenko
Subjects: Physics, Nuclear physics, Nuclotron, Range (particle radiation), 010308 nuclear & particles physics, QC1-999, 0103 physical sciences, Nuclear Theory, 010306 general physics, Breakup, Nuclear Experiment, 01 natural sciences
Abstract: Deuteron spin structure program is aimed on extraction of two and three nucleon forces information, including their spin dependent parts, from dp elastic and dp breakup processes investigated at intermediate energies. The dp elastic data were obtained at Internal Target Station of Nuclotron (JINR) in the energy range 400-1800 MeV using polarized deuteron beam. Strong sensitivity to the short range spin structure of the isoscalar nucleon-nucleon correlations is observed in deuteron analyzing powers. Preliminary results of the the cross section for the dp breakup reaction have been obtained at 400 MeV of deuteron energy.
Published: 2020

25. Spin Studies of the Short-Range Correlations with Polarized Beams at JINR-Nuclotron

Author: S. G. Reznikov, A. A. Terekhin, Olena Mezhenska, Eugene V. Chernykh, S. M. Piyadin, D. Enache, J. T. Karachuk, Alexander V. Averyanov, N. B. Ladygina, Tomohiro Uesaka, P. K. Kurilkin, A. N. Livanov, A. N. Khrenov, Yaroslav T. Skhomenko, D. O. Krivenkov, Yury Gurchin, Marian Janek, V. P. Ladygin, A. V. Tishevsky, and Alexander Isupov
Subjects: Physics, Nuclear physics, Range (particle radiation), Nuclotron, Spin-½
Published: 2019

26. Study of the quasi-freenp→npπ+π−reaction with a deuterium beam at 1.25 GeV/nucleon

Author: S. Spataro, I. Fröhlich, J. Wüstenfeld, D. González-Díaz, J. S. Díaz, R. Holzmann, M. Böhmer, J. Markert, P. Cabanelas, A. Mangiarotti, Laura Fabbietti, P. Tlusty, B. Kämpfer, Kirill Lapidus, E. Schwab, A.P. Ierusalimov, T. Christ, A. Rustamov, V. P. Ladygin, A. Dybczak, Kathrin Göbel, Y. Parpottas, M. Gumberidze, Alexander Belyaev, T. Hennino, C. Sturm, T. Liu, S. Lang, A. Gil, J. L. Boyard, L. Lopes, Joachim Stroth, R. Krücken, Andrey Reshetin, A. K. Kurilkin, S. Yurevich, Y. C. Pachmayer, B. Michalska, A. B. Kurepin, M. Traxler, E. Morinière, I. Koenig, B. Ramstein, T. A. Vasiliev, O. V. Fateev, Tatiana Karavicheva, M. Lorenz, A. Schmah, W. Koenig, G. Agakishiev, Jehad Mousa, S. P. Chernenko, D. Belver, Volker Metag, P. Zhou, J. Michel, Paolo Finocchiaro, I. Iori, Witold Przygoda, O. Pechenova, H. Ströbele, A. Tarantola, Piotr Salabura, L. Naumann, L. Maier, V. Wagner, Yu.V. Zanevsky, J. Friese, T. Wojcik, F. Dohrmann, Wolfgang Kuhn, Fedor Guber, E. Castro, M. B. Golubeva, B. Spruck, C. Gilardi, A. Blanco, A. Balanda, P. Fonte, A. Ivashkin, R. Kotte, J. A. Garzón, V. Pechenov, Tetyana Galatyuk, R. Trebacz, J. S. Lange, Michael Weber, Roman Gernhäuser, A. Kugler, J. Pietraszko, M. Jurkovic, D. Kirschner, M. Destefanis, Yu. G. Sobolev, C. Müntz, A. Sadovsky, K. Teilab, Marek Palka, M. Wisniowski, H. Tsertos, Peter Braun-Munzinger, B. W. Kolb, J. Otwinowski, P. K. Kurilkin, and Filip Krizek
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Spectrometer, Nuclear Theory, Resonance (particle physics), Nuclear physics, Deuterium, Isospin, Mass spectrum, Invariant mass, Nuclear Experiment, Nucleon, Beam (structure)
Abstract: The tagged quasi-free np→npπ+π- reaction has been studied experimentally with the High Acceptance Di-Electron Spectrometer (HADES) at GSI at a deuteron incident beam energy of 1.25 GeV/nucleon (s~2.42 GeV/c for the quasi-free collision). For the first time, differential distributions of solid statistics for π+π- production in np collisions have been collected in the region corresponding to the large transverse momenta of the secondary particles. The invariant mass and angular distributions for the np→npπ+π- reaction are compared with different models. This comparison confirms the dominance of the t-channel with δδ contribution. It also validates the changes previously introduced in the Valencia model to describe two-pion production data in other isospin channels, although some deviations are observed, especially for the π+π- invariant mass spectrum. The extracted total cross section is also in much better agreement with this model. Our new measurement puts useful constraints for the existence of the conjectured dibaryon resonance at mass M~2.38 GeV and with width Γ~70 MeV.
Published: 2015

27. Spin studies of the short-range correlations at Nuclotron

Author: Alexander Isupov, E. V. Chernykh, J. T. Karachuk, Yuri V. Gurchin, P. K. Kurilkin, Alexei V. Tishevsky, N. B. Ladygina, Alexei N. Livanov, D. Enache, Olena Mezhenska, A. N. Khrenov, S. M. Piyadin, Alexander V. Averyanov, D. O. Krivenkov, V. P. Ladygin, Yaroslav T. Skhomenko, Marian Janek, S. G. Reznikov, Tomohiro Uesaka, and A. A. Terekhin
Subjects: Physics, Nuclear physics, Range (particle radiation), Nuclotron, Spin-½
Published: 2019

28. Deuteron beam polarimeter at Nuclotron internal target

Author: A. A. Terekhin, Marian Janek, D. Enache, V. P. Ladygin, V. V. Fimushkin, E. V. Chernykh, A. S. Belov, Yu. V. Gurchin, J. T. Karachuk, I. S. Volkov, P. K. Kurilkin, A. N. Khrenov, S. M. Piyadin, A. N. Livanov, I. E. Vnukov, A. Yu. Isupov, Ya.T. Skhomenko, D. O. Krivenkov, S. G. Reznikov, A. V. Averyanov, and A. V. Tishevsky
Subjects: Physics, Nuclotron, 010308 nuclear & particles physics, Scattering, Physics::Instrumentation and Detectors, QC1-999, Polarimetry, Astrophysics::Instrumentation and Methods for Astrophysics, Polarimeter, 01 natural sciences, Ion source, Nuclear physics, 0103 physical sciences, Tensor, 010306 general physics, Nuclear Experiment, Beam (structure), Spin-½
Abstract: The current deuteron beam polarimetry at the Nuclotron is provided by the Internal Target polarimeter based on the use of the asymmetry in dpelastic scattering at large angles in the cms at 270 MeV. The upgraded deuteron beam polarimeter has been used to obtain the vector and tensor polarizations during 2016/2017 runs for the DSS experimental program. The polarimeter has been also used to tune the polarized ion source parameters for 6 different spin modes. The data analysis has been performed using the developed software based on C++ language and ROOT5 library
Published: 2019

29. Measurement of the vector and tensor analyzing powers for dp-elastic scattering at the energy of 800 MeV

Author: Yurii V. Gurchin, Alexander Isupov, J. Urban, Alexander V. Averyanov, Arkadiy A. Terekhin, S. M. Piyadin, Anatolii N. Khrenov, Yaroslav T. Skhomenko, P. K. Kurilkin, Alexei V. Tishevsky, Evgenii V. Chernykh, N. B. Ladygina, Sergee G. Reznikov, D. Enache, Marian Janek, Julia-Tamara Karachuk, Tomozumi Uesaka, Dmitrii O. Krivenkov, Alexei N. Livanov, Olena Mezhenska, and V. P. Ladygin
Subjects: Physics, Elastic scattering, Nuclotron, Angular range, Scattering, Tensor, Nuclear Experiment, Energy (signal processing), Computational physics
Abstract: The vector Ay and tensor analyzing powers Ayy and Axx for dp-elastic scattering were measured at the energy of 800 MeV and at the angular range from 60° to 135° in the center-of-mass system at the JINR Nuclotron. The experimental data are compared with the calculations obtained within framework of relativistic multiple scattering approach.
Published: 2019

30. Time-like baryon transitions studies with HADES

Author: A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, V. Kushpil, C. Wendisch, A. Lebedev, P. Wintz, L. Silva, S. Morozov, K. Nowakowski, A. Belounnas, A. B. Kurepin, J. Kuboś, Manfred Sobiella, C. Müntz, M. Traxler, C. Deveaux, P. Tlusty, R. Greifenhagen, E. Schwab, Christoph Blume, S. Spataro, Arkadiy Taranenko, V. Mikhaylov, T. Heinz, H. Tsertos, I. Fröhlich, O. Svoboda, M. Liu, A.I. Zinchenko, B. Kardan, F. Kornas, A. Kozela, D. Pfeifer, K. H. Kampert, B. Kämpfer, R. Lalik, O. Petukhov, M. Lorenz, V. Pechenov, B. Włoch, L. Lopes, M. Gumberidze, A.P. Ierusalimov, T. Galatyuk, F. Seck, W. Koenig, C. Pauly, P. K. Kurilkin, Fedor Guber, Joachim Stroth, P. Chudoba, S. Harabasz, C. Franco, L. Naumann, P. Bordalo, Oliver Werner Arnold, M. Zuschke, Laura Fabbietti, R. Holzmann, H. Schuldes, J. Pietraszko, J. Markert, T. Hennino, I. Koenig, Vikram Patel, Andrey Reshetin, D. Dittert, Roman Gernhäuser, G. Kornakov, A. Kugler, Ilya Selyuzhenkov, Grzegorz Korcyl, V. Khomyakov, Y. Parpottas, S. Ramos, D. M. Mihaylov, M. Kajetanowicz, L. Chlad, Anna Carolina Toledo da Cunha Pereira, M. Böhmer, J. Dreyer, Alexander Belyaev, Izabela Ciepał, V. Petousis, S. Spies, A. Rost, V. P. Ladygin, S. Linev, Witold Przygoda, A. Gillitzer, L. Ritman, P. Zumbruch, O. V. Fateev, Victor Ivanov, P. Salabura, A. Zhilin, T. Kunz, H. Ströbele, B. Ramstein, F. Scozzi, M. B. Golubeva, Gennady Lykasov, J. Adamczewski-Musch, P. Rodriguez-Ramos, A. Sadovsky, M. Himmelreich, V. Wagner, C. Höhne, T. Mahmoud, M. G. Wiebusch, J. Friese, P. Sellheim, S. Maurus, P. Strzempek, J. Biernat, J. A. Garzón, Tatiana Karavicheva, A. Troyan, K. Pysz, T. Scheib, B. Arnoldi-Meadows, Volker Metag, J. Michel, J. Wirth, O. Pechenova, M. Szala, Jerzy Smyrski, Alexander Malakhov, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), HADES, and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: p p: scattering, Meson, QC1-999, Nuclear Theory, off-shell, hyperon, 01 natural sciences, Resonance (particle physics), electron: pair production, Nuclear physics, transition: electromagnetic, 0103 physical sciences, Elementary reaction, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], talk: Krakow 2018/06/07, ddc:530, structure, pi: beam, Vector meson, Nuclear Experiment, 010306 general physics, Physics, Range (particle radiation), 1-3.5 GeV-cms/nucleon, 010308 nuclear & particles physics, nucleon, Hyperon, matter: effect, vector meson, Darmstadt Lab, Baryon, HADES, kinematics, baryon resonance: production, Physics::Accelerator Physics, High Energy Physics::Experiment, Nucleon, experimental results
Abstract: The HADES collaboration uses the e+e−production as a probe of the resonance matter produced in collisions at incident energies of 1-3.5 GeV/nucleon at GSI. Elementary reactions provide useful references for these studies and give information on resonance Dalitz decays (R→Ne+e−). Such processes are sensitive to the structure of time-like electromagnetic baryon transitions in a kinematic range where (off-shell) vector mesons play a crucial role. Results obtained in proton-proton reactions and in a commissioning pion-beam experiment are reported and prospects for future pion beam experiments and for first hyperon Dalitz decay measurements are described. The connection with the investigations of medium effects to be continued with HADES in the next years at SIS18 and SIS100 is also discussed.
Published: 2019

31. Deuteron beam polarization measurement at 270 MeV at Nuclotron internal target

Author: Marian Janek, J. T. Karachuk, I. S. Volkov, A. S. Belov, S. G. Reznikov, A. N. Livanov, E. V. Chernykh, A. N. Khrenov, A. V. Averyanov, S. M. Piyadin, D. Enache, A. A. Terekhin, Yu. V. Gurchin, P. K. Kurilkin, I. E. Vnukov, V. P. Ladygin, V. V. Fimushkin, A. V. Tishevsky, Ya.T. Skhomenko, A. Yu. Isupov, and D. O. Krivenkov
Subjects: Physics, Nuclotron, 010308 nuclear & particles physics, Scattering, Physics::Instrumentation and Detectors, media_common.quotation_subject, QC1-999, Polarimetry, Astrophysics::Instrumentation and Methods for Astrophysics, Polarimeter, Polarization (waves), 01 natural sciences, Asymmetry, Ion source, Nuclear physics, Deuterium, 0103 physical sciences, 010306 general physics, Nuclear Experiment, media_common
Abstract: The current deuteron beam polarimetry at Nuclotron is provided by the Internal Target polarimeter based on the use of the asymmetry in dp-elastic scattering at large angles in the cms at 270 MeV. The upgraded deuteron beam polarimeter has been used to obtain the vector and tensor polarization during 2016 runs for the DSS experimental program. The polarimeter has been used also for tuning of the polarized ion source parameters for 6 different spin modes. The data analysis has been performed using developed software based on C++ language and ROOT5 library.
Published: 2019

32. Study of the deuteron analyzing powers in dp elastic scattering at the energy of 800 MeV

Author: A. A. Terekhin, V. P. Ladygin, S. G. Reznikov, S. M. Piyadin, Olena Mezhenska, A. V. Averyanov, Marian Janek, Yu. V. Gurchin, P. K. Kurilkin, J. T. Karachuk, D. Enache, Tomohiro Uesaka, A. V. Tishevsky, J. Urban, E. V. Chernykh, A. N. Khrenov, Ya.T. Skhomenko, N. B. Ladygina, A. N. Livanov, A. Yu. Isupov, and D. O. Krivenkov
Subjects: Physics, Nuclear physics, Elastic scattering, Nuclotron, Deuterium, Scattering, QC1-999, Tensor, Nuclear Experiment, Energy (signal processing), Beam (structure), Ion
Abstract: Preliminary results on the angular distributions of the vector Ay and tensor Ayy, Axx analyzing powers in dp elastic scattering at the energy of 800 MeV are presented. The measurements have been performed on Internal Target Station of the JINR Nuclotron using polarized deuteron beam from new source of polarized ions. The experimental data are compared with the preliminary calculations obtained within framework of relativistic multiple scattering approach.
Published: 2019

33. Energy dependence of the vector Ay and tensor Ayy and Axx analyzing powers in deuteron-proton elastic scattering at large scattering angles

Author: Olena Mezhenska, Marian Janek, S. G. Reznikov, J. T. Karachuk, A. V. Averyanov, A. A. Terekhin, A. V. Tishevsky, A. N. Khrenov, Ya.T. Skhomenko, A. N. Livanov, D. Enache, E. V. Chernykh, A. Yu. Isupov, V. P. Ladygin, D. O. Krivenkov, Tomohiro Uesaka, N. B. Ladygina, S. M. Piyadin, Yu. V. Gurchin, and P. K. Kurilkin
Subjects: Physics, Elastic scattering, Nuclotron, Range (particle radiation), Proton, 010308 nuclear & particles physics, Scattering, Computer Science::Information Retrieval, Isoscalar, QC1-999, Nuclear Theory, Spin structure, 01 natural sciences, Nuclear physics, 0103 physical sciences, Physics::Accelerator Physics, Tensor, 010306 general physics, Nuclear Experiment
Abstract: The results on the angular dependencies of the vectorAyand tensorAyyandAxxanalyzing powers in deuteron-proton elastic scattering at large scattering angles are presented. These data were obtained at internal target at the JINR Nuclotron in the energy range 400-1800 MeV using polarized deuteron beam from new polarized ion source. New data on the deuteron analyzing powers in the wide energy range demonstrate strong sensitivity to the short-range spin structure of the isoscalar nucleon-nucleon correlations observed earlier. The perspectives of further studies of the short-range correlations using carbon, polarized deuteron and proton beams are discussed.
Published: 2019

34. Study of compressed baryonic matter at FAIR: JINR participation

Author: P. K. Kurilkin, N. B. Ladygina, Victor Ivanov, V. P. Ladygin, Vladimir Peshekhonov, O. Derenovskaya, A.I. Zinchenko, Yu. V. Gusakov, and Alexander Malakhov
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, 01 natural sciences, Synchrotron, Compressed baryonic matter, law.invention, Nuclear physics, Baryon, law, 0103 physical sciences, Physics::Accelerator Physics, Nuclear Experiment, 010306 general physics, Beam (structure)
Abstract: The scientific goal of the CBM (Compressed Baryonic Matter) experiment at FAIR (Darmstadt) is to explore the phase diagram of strongly interacting matter at highest baryon densities. The physics program of the CBM experiment is complimentary to the programs to be realized at MPD and BMN facilities at NICA and will start with beam derived by the SIS100 synchrotron. The results of JINR participation in the development of different sub-projects of the CBM experiment are presented.
Published: 2017

35. Δ(1232) Dalitz decay in proton-proton collisions at T=1.25 GeV measured with HADES at GSI

Author: V. Pechenov, C. Höhne, M. G. Wiebusch, O. Petukhov, T. Heinz, Christoph Blume, M. Lorenz, J. Siebenson, A. Dybczak, V. Petousis, S. Hlavac, E. Schwab, O. V. Fateev, J. C. Berger-Chen, A. Rost, L. Chlad, W. Kühn, B. Ramstein, E. Usenko, A. K. Kurilkin, H. Schuldes, P. Rosier, J. Pietraszko, S. Harabasz, A.P. Ierusalimov, B. Kämpfer, W. Koenig, A. Sadovsky, F. Scozzi, L. Lopes, Marek Palka, J. Adamczewski-Musch, J. A. Garzón, P. Filip, C. Sturm, M. Gumberidze, B. W. Kolb, Fedor Guber, E. Morinière, Yu. G. Sobolev, C. Müntz, C. Wendisch, T. Scheib, I. Koenig, P. Bordalo, T. Galatyuk, A. Lebedev, Oliver Werner Arnold, R. Holzmann, L. Naumann, M. Böhmer, A. Mangiarotti, L. Silva, J. Markert, B. Kardan, L. Maier, A. Belounnas, A. B. Kurepin, A. V. Sarantsev, M. Traxler, S. Ramos, K. Nowakowski, C. Deveaux, V. P. Ladygin, T. Hennino, Roman Gernhäuser, Yu.V. Zanevsky, A. Blanco, P. Fonte, A. Kugler, A. Ivashkin, R. Kotte, P. K. Kurilkin, M. B. Golubeva, P. Rodriguez-Ramos, Sergey V. Morozov, J. Stroth, R. Lalik, T. Liu, O. Svoboda, S. Spataro, I. Fröhlich, G. Kornakov, Andrey Reshetin, C. Franco, R. H. Munzer, D. M. Mihaylov, Grzegorz Korcyl, H. Tsertos, Laura Fabbietti, T. Kunz, P. Tlusty, Kirill Lapidus, Tatiana Karavicheva, C. Behnke, Witold Przygoda, S. P. Chernenko, Volker Metag, Yiannis Parpottas, J. Michel, J. Wirth, O. Pechenova, J. Friese, H. Ströbele, V. Wagner, T. Mahmoud, P. Sellheim, P. Strzempek, E. T. Atomssa, J. Biernat, Paolo Finocchiaro, S. Maurus, F. Seck, Eliane Epple, J. Dreyer, Alexander Belyaev, P. Zumbruch, and P. Salabura
Subjects: Physics, Quark, Particle physics, Proton, 010308 nuclear & particles physics, Branching fraction, Partial wave analysis, Nuclear Theory, Hadron, Kinetic energy, 01 natural sciences, Particle identification, Nuclear physics, Particle decay, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: We report on the investigation of Δ(1232) production and decay in proton-proton collisions at a kinetic energy of 1.25 GeV measured with HADES. Exclusive dilepton decay channels ppe+e− and ppe+e−γ have been studied and compared with the partial-wave analysis of the hadronic ppπ0 channel. They allow to access both Δ+→pπ0(e+e−γ) and Δ+→pe+e− Dalitz decay channels. The perfect reconstruction of the well-known π0 Dalitz decay serves as a proof of the consistency of the analysis. The Δ Dalitz decay is identified for the first time and the sensitivity to N-Δ transition form factors is tested. The Δ(1232) Dalitz decay branching ratio is also determined for the first time; our result is (4.19 ± 0.62 syst. ± 0.34 stat.) ×10−5, albeit with some model dependence.
Published: 2017

36. Investigation of the dp Breakup and dp Elastic Reactions at Intermediate Energies at Nuclotron

Author: S. P. Merts, Alexander Isupov, S. M. Piyadin, I. E. Vnukov, Yuri V. Gurchin, P. Batyuk, G. Martinska, V. P. Ladygin, J. T. Karachuk, A. K. Kurilkin, S. G. Reznikov, Gabriela Tarjányiová, P. K. Kurilkin, Marian Janek, Alexei N. Livanov, and Arkadyi A. Terekhin
Subjects: Physics, Elastic scattering, Nuclotron, Angular range, 010308 nuclear & particles physics, Nuclear Theory, Spin structure, Breakup, 01 natural sciences, Atomic and Molecular Physics, and Optics, Nuclear physics, Deuterium, 0103 physical sciences, Atomic physics, Nuclear Experiment, 010306 general physics, Nucleon, Beam (structure)
Abstract: The main goal of the deuteron spin structure project is to investigate the spin structure of nucleon–nucleon and three nucleon short-range correlations via the measurements of the polarization observables in the deuteron induced reactions at intermediate energies at Nuclotron (Dubna, Russia). In this framework, dp nonmesonic breakup and dp elastic reactions are investigated using internal target station. The dp breakup data are obtained with the detection of two outgoing protons at the angles of $$19^{\circ }$$ – $$54^{\circ }$$ in lab. frame at the deuteron energies of 300–500 MeV. The data of dp elastic scattering for the deuteron energies up to 2000 MeV are obtained in angular range $$70^{\circ }$$ – $$120^{\circ }$$ in cm. The further perspectives of the investigations using polarized deuteron beam as well as the studies of the $${}^3{\mathrm{He}}(d,p){}^4{\mathrm{He}}$$ reaction are discussed.
Published: 2017

37. Challenges in QCD matter physics --The scientific programme of the Compressed Baryonic Matter experiment at FAIR

Author: V. Jakovlev, R. Talukdar, Alberica Toia, V.M. Golovatyuk, P. Ivanov, Abhijit Bhattacharyya, M. Kohn, Yu. Onishchuk, M. Tanha, Suman Sau, E. Friske, L. Kumar, A. Roy, Valerica Baban, Yaping Wang, V. Blinov, D. Svirida, Pradip Kumar Sahu, D. Dementiev, A. Gomez Ramirez, M. Petris, Ming Shao, D. Blau, Yu. P. Tsyupa, A. Rost, D. P. Mahapatra, Y. F. Ryabov, D. Wielanek, Anju Bhasin, C. Lara, Saikat Biswas, Shusu Shi, E. P. Akishina, F. Seck, V. Jain, Hongfang Chen, O. Malyatina, B. Komkov, I. Carevic, V. Baublis, Raghunath Sahoo, D. Normanov, Tetyana Galatyuk, S. Amar-Youcef, Cristian Andrei, Yu. I. Bocharov, A. Vorobiev, M. Strikhanov, Y. Leifels, O. Petukhov, A. Petrovici, Dezso Varga, Oana Ristea, W. Verhoeven, J. Sánchez Rosado, Victor Golovtsov, S. Belogurov, E. Kryshen, M. Dey, Johannes Lehrbach, Y. P. Viyogi, A. V. Kazantsev, A. Himmi, M. Anđelić, Oleg Bezshyyko, Cheng Li, A. Raportirenko, Xu Cai, C. Kreidl, Daniela Bartos, T. Balog, Volker Lindenstruth, A. Chaus, M. Mohisin Khan, Mate Csanad, J. Pluta, A. Senger, Matthias Balzer, Christoph Blume, H. Appelshäuser, Di Jiang, B. Kämpfer, A. Lymanets, I. Berceanu, S. Gorbunov, S. Sarangi, V. Pospíšil, N. Heine, A. Veshikov, Yuanjing Li, V. Kushpil, Ch. Klein-Bösing, I. Selyuzhenkov, S. Razin, Guofeng Song, D. Belyakov, G. Berezin, V. Kyva, Andrei Ionut Herghelegiu, Heiko Engel, K. Schmidt, V. Klochkov, Alla Maevskaya, P.-A. Loizeau, L. Golinka-Bezshyyko, V.A. Karnaukhov, J. Bendarouach, C. Xiang, A.D. Sheremetiev, V. F. Chepurnov, Hr Schmidt, Zbigniew Sosin, M. Singla, I. Momot, O. Andreeva, I. Alexandrov, R. N. Singaraju, S. Avdeev, Evgeny Alexandrov, R. Płaneta, Gennady Ososkov, D. Hutter, A. Reinefeld, C.J. Schmidt, Andrei Dorokhov, Vikram Patel, K.-H. Becker, N. Kurepin, E. Lebedeva, C. P. Singh, Y. K. Sun, K. Jaaskelainen, Andras Szabo, J. Rożynek, Sanjeev Singh Sambyal, V. S. Negi, Krzysztof Piasecki, W. F. J. Müller, M. Baznat, N. Miftakhov, Feng Liu, N. Ahmad, L. Skoda, G. D. Kekelidze, Vladimir Ivanov, Krzysztof Kasinski, Xi-Wei Wang, D. Miskowiec, Serguei Volkov, Sudhir Raniwala, I. Tsakov, A. Nedosekin, Peter Senger, T. Barczyk, S. Dubnichka, C. Ristea, N.G. Tuturas, E. V. Atkin, D. Karmanov, W. Zabolotny, Tatiana Karavicheva, Subhasis Samanta, Yu.V. Zanevsky, S. Bähr, O. Batenkov, M. Petrovici, B. Milanovic, Muhammad Farooq, R. Karabowicz, I. Vassiliev, P. Staszel, Sheng Dong, Udo Wolfgang Kebschull, P. Koczon, Goutam Gangopadhyay, P. Zumbruch, Vladimir Plujko, Y. Berdnikov, Shue He, Volodymyr Vovchenko, V. Mialkovski, W. Zipper, T. Bus, O. Tarassenkova, S. K. Sahu, V. Militsija, Yu. Zaitsev, C. Müntz, S. K. Ghosh, Sushanta Tripathy, E. Rostchin, V. Shumikhin, I. Fröhlich, I. Panasenko, A. Laso Garcia, L. Dutka, Yu.S. Anisimov, B. Linnik, T. Tischler, A. Ivashkin, R. Kotte, Calin Besliu, T. Akishina, Rashmi Raniwala, Sheng Zheng, K. Koch, J. Kunkel, A. Shabunov, E. Lobanova, Wojciech Kucewicz, T. Breitner, M. Al-Turany, R. P. Adak, Claudiu Cornel Schiaua, S. Masciocchi, Zhongbao Yin, Xinjie Huang, Jens Wiechula, Nu Xu, I. Kisel, Christian Sturm, T. Mahmoud, V. Kalinin, A. Abuhoza, Mohd Danish Azmi, P. Zrelov, Jing Zhou, M. Dželalija, C. Deveaux, M. Goffe, Ke-Jun Wu, S. Strohauer, S. Bashir, D. Argintaru, B. Heß, A. Turowiecki, M. B. Golubeva, F. Ahmad, S. Gläßel, V. Plotnikov, Manuel Penschuck, Supriya Das, Grzegorz Kasprowicz, Vladislav Manko, O. Vasylyev, D. Kresan, L. Kudin, Yu. V. Gusakov, Dongdong Hu, Vladimir Nikulin, M. Ivanov, D. Gottschalk, Karl-Heinz Kampert, A. Kolosova, G. Caragheorgheopol, K. Dey, K. Mikhailov, Anand Kumar Dubey, J. Scholten, S. P. D. Figuli, T. Blank, Ajit Kumar, Vladimir Peshekhonov, Igor Pshenichnov, E. Badura, Michael Deveaux, I. Rostovtseva, M. Kiš, Jürgen Becker, Evgeny Karpechev, B. W. Kolb, Valery Pugatch, Xiaofeng Luo, I. Som, E. Ovcharenko, F.F. Guber, H. Büsching, H. Cherif, N. R. Panda, Zubayer Ahammed, R. Najman, Fouad Rami, M. Gumiński, J. Pieper, Jerzy Gajda, G. Kozlov, H. Jahan, A. Drozd, V. Butuzov, Joachim Stroth, I. K. Yoo, Thomas Janson, M. Petri, R. Holzmann, D. Finogeev, S. Golovnya, Ping Cao, E. Malankin, Buddhadeb Bhattacharjee, L. Meder, Junfeng Yang, Lei Zhao, C. Simon, S. Kuznetsov, I. Valin, M. Zyzak, H. Hartmann, T. Satława, Yi Wang, Anton Andronic, Daicui Zhou, Zebo Tang, M. Prokudin, V. Saveliev, Qiyan Li, I. M. Deppner, Mahitosh Mandal, F. Uhlig, J. A. Lucio Martínez, J. Book, L. Mik, S. Schatral, S. K. Pal, A. Petrovskiy, J. Pietraszko, B. Debnath, E. Usenko, O. Svoboda, Gy. Wolf, V.V. Elsha, J. Lehnert, Pengfei Lyu, S. Seddiki, Peter Fischer, Huanhuan Fan, D. Doering, J. Frühauf, C. Wendisch, Yu Zhang, V. Kozlov, P. Tlustý, Piotr Otfinowski, N. Baranova, Sergey Kiselev, J. Rautenberg, Dmitry Mal'kevich, I. Kadenko, I. Lobanov, Mikhail Zhalov, A. Rodriguez Rodriguez, D. Emschermann, Vikas Singhal, Pavel Akishin, M. Bach, P. Kravtsov, X. Zhu, C. Nandi, I. Korolko, Rongxing Yang, E. Nandy, D. Ivanischev, Anil Prakash, A. Semennikov, I. E. Yushmanov, S. Parzhitskiy, M. Vznuzdaev, A. Khvorostukhin, A. Kiryakov, Soma Mukherjee, LuYao Chen, M. Pugach, Piotr Kmon, J. Gebelein, V. Kleipa, C. Bergmann, Kai Schweda, S. Rabtsun, Victor Ivanov, Tivadar Kiss, M. Dreschmann, I. G. Alekseev, A. K. Kurilkin, A. Volochniuk, E. Krebs, A. Lebedev, V. Kramarenko, N. Topil'skaya, S. Das, S. Lebedev, S. Querchfeld, Madan M. Aggarwal, N.I. Zamiatin, Amrendra K. Singh, Swagata Mandal, A. Khanzadeev, C. Simons, Gilles Claus, U. Frankenfeld, V.V. Ivanov, A. Chernogorov, Pascal Dillenseger, V. Dobyrn, Z. Dubnichkova, S. Löchner, Bhartendu K. Singh, S. Ahmad, Rishat Sultanov, J. Kallunkathariyil, A. Wieloch, T. Matulewicz, R. Berendes, A. Shabanov, Saniya Khan, V. Friese, Anik Gupta, L. Kochenda, M. Kirejczyk, Pavel Kisel, Amlan Chakrabarti, Ashwini Kumar, Michal Koziel, A. Berdnikov, A. Sadovsky, T. O. Ablyazimov, S. Mahajan, M. Merkin, Robert Szczygiel, C. Pauly, Krzysztof Poźniak, F. Roether, Alexey Kurepin, Alexander Voronin, A. Bubak, Nikolai Shumeiko, Nicolas Winckler, A. V. Kryanev, Andrey Reshetin, A. Simakov, Sukalyan Chattopadhyay, E. M. Ilgenfritz, B. Sikora, Jihye Song, J. Hehner, Zhi Deng, M. Irfan, J. Saini, S. A. Lone, L. Naumann, D. Eschweiler, A. M. Marin Garcia, P. Kähler, O. Derenovskaya, A.P. Ierusalimov, Alexandru Jipa, K. Agarwal, T. Tolyhi, H. Malygina, Xingming Fan, Amalia Pop, Dmitry Golubkov, E. M. Verbitskaya, L. Radulescu, Ryszard S. Romaniuk, D. Pfeifer, Yifei Zhang, Rajarshi Ray, V. Zryuev, M. Teklishyn, M. Träger, S. Morozov, H. Flemming, A. Oancea, A. Wilms, P. Ghosh, A. Grzeszczuk, V. Mikhaylov, Patrick Simon Reichelt, Ankhi Roy, Sanguk Won, Vladimir Samsonov, T. Esanu, V. Akishina, D.V. Peshekhonov, A.I. Zinchenko, M. Żoładź, Xin Li, I. Sibiryak, J. Wüstenfeld, Aleksey Voronin, M. Korolev, Guangming Huang, A. Kugler, E. Kaptur, J. Michel, J. Tarasiuk, Manjit Kaur, A. Bychkov, F. Lemke, Bekhzod S Yuldashev, T. K. Bhattacharyya, S. Gorokhov, F. Schintke, P. Klaus, Adrian Byszuk, Ionel Lazanu, Dong Wang, Michael Dürr, M. Krieger, H. Deppe, Sibaji Raha, O. Sander, S. Kowalski, K. Wiśniewski, Alexander Malakhov, I. Filozova, Shengqin Feng, M. Calin, S. Reinecke, V. Kucher, M. Weber, A. Kovalchuk, V. Petráček, M. Adamczyk, K.K. Gudima, Johannes Peter Wessels, P. Sitzmann, J. Markert, V. K. Eremin, Alexandru Bercuci, Marc Winter, Mateusz Baszczyk, M.I. Ciobanu, E. Bao, M. Kuc, U. Brüning, O. V. Fateev, Piotr Maj, J. de Cuveland, M. G. Târzilă, Pavel Larionov, R. Averbeck, Jianping Cheng, Jacek Rauza, C. E. Muñoz Castillo, N. D'Ascenzo, O. Bertini, Wendi Deng, G. Kretschmar, I. Skwira-Chalot, W. Niebur, K. Oh, V. P. Ladygin, T. Morhardt, C. Höhne, M. G. Wiebusch, Partha Pratim Bhaduri, Dong Han, Oleg Karavichev, N. Herrmann, R. Visinka, F. Constantin, C. García Chávez, J. Brzychczyk, Sidharth Kumar Prasad, D. Soyk, V. V. Kirakosyan, W. Koenig, D. Bertini, Z. Majka, F. Khasanov, J. Eschke, P. Gryboś, E. Lavrik, V. Cătănescu, K. Siwek-Wilczyńska, P. K. Kurilkin, J.M. Heuser, Adeel Akram, Yu. Murin, Alexander Akindinov, A. K. Bhati, I. Kres, J. Förtsch, Rafal Kleczek, Jiajun Zheng, S. Manz, T. K. Nayak, Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), CBM, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), and Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: J/psi(3100), Phase transition, matter: interaction, Hadron, Nuclear Theory, hypernucleus, 7. Clean energy, 01 natural sciences, Critical point (thermodynamics), transport theory, hadron: gas, Nuclear Experiment, neutron star, QCD matter, Brookhaven RHIC Coll, quark gluon: plasma, Physics, Large Hadron Collider, fireball, elliptic flow, strong interaction, Observable, heavy ion, CERN LHC Coll, QCD matter, Quark-Gluon-Plasma (QGP), QCD phase diagram, strong interaction, hadronic matter, partonic matte, heavy-ion, 2-4.9 GeV/nucleon, Nuclear and High Energy Physics, Particle physics, CBM, charmonium, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], Strong interaction, review, nonperturbative, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], symmetry: chiral, quantum chromodynamics: critical phenomena, strangeness, 0103 physical sciences, density: high, Darmstadt GSI FAIR, structure, 010306 general physics, equation of state, quantum chromodynamics: matter, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, nucleus, temperature: high, baryon, Neutron star, Automatic Keywords, HADES, charm
Abstract: International audience; Substantial experimental and theoretical efforts worldwide are devoted to explore the phase diagram of strongly interacting matter. At LHC and top RHIC energies, QCD matter is studied at very high temperatures and nearly vanishing net-baryon densities. There is evidence that a Quark-Gluon-Plasma (QGP) was created at experiments at RHIC and LHC. The transition from the QGP back to the hadron gas is found to be a smooth cross over. For larger net-baryon densities and lower temperatures, it is expected that the QCD phase diagram exhibits a rich structure, such as a first-order phase transition between hadronic and partonic matter which terminates in a critical point, or exotic phases like quarkyonic matter. The discovery of these landmarks would be a breakthrough in our understanding of the strong interaction and is therefore in the focus of various high-energy heavy-ion research programs. The Compressed Baryonic Matter (CBM) experiment at FAIR will play a unique role in the exploration of the QCD phase diagram in the region of high net-baryon densities, because it is designed to run at unprecedented interaction rates. High-rate operation is the key prerequisite for high-precision measurements of multi-differential observables and of rare diagnostic probes which are sensitive to the dense phase of the nuclear fireball. The goal of the CBM experiment at SIS100 ( $\sqrt{s_{NN}}=$ 2.7--4.9 GeV) is to discover fundamental properties of QCD matter: the phase structure at large baryon-chemical potentials ( $\mu_B > 500$ MeV), effects of chiral symmetry, and the equation of state at high density as it is expected to occur in the core of neutron stars. In this article, we review the motivation for and the physics programme of CBM, including activities before the start of data taking in 2024, in the context of the worldwide efforts to explore high-density QCD matter.
Published: 2017

38. Few-body Studies at Nuclotron-JINR

Author: B. Trpisova, I. E. Vnukov, S. G. Reznikov, J. T. Karachuk, T. A. Vasiliev, V. P. Ladygin, A. N. Livanov, A. N. Khrenov, V. A. Krasnov, V. L. Rapatsky, N. B. Ladygina, A. Yu. Isupov, V. V. Ryabchuk, A. A. Terekhin, G. Martinska, A. K. Kurilkin, M. Janek, Yu. V. Gurchin, P. K. Kurilkin, and S. M. Piyadin
Subjects: Nuclear physics, Baryon, Elastic scattering, Physics, Particle physics, Cross section (physics), Nuclotron, Scattering, Hadron, Elementary particle, Nuclear Experiment, Nucleon, Atomic and Molecular Physics, and Optics
Abstract: Recent results on the deuteron analyzing powers in dp- elastic scattering obtained at Nuclotron (JINR, Dubna) are compared with the calculations performed within relativistic multiple scattering model. The data demonstrate strong deviation form the predictions at large angles in the cms. The preliminary data on the energy dependence of the cross section in the dp → ppn reaction at 150–250 MeV/nucleon for different configurations and dp elastic scattering up to 1 GeV obtained at internal target station at Nuclotron are reported. The prospects of the further few-body studies at JINR are discussed.
Published: 2014

39. The differential cross section for dp-elastic scattering at 500-900 MeV/n and large transverse momenta

Author: Marian Janek, S. G. Reznikov, A. N. Khrenov, N. B. Ladygina, A. A. Terekhin, Semeon Piyadin, P. K. Kurilkin, Yury Gurchin, A. K. Kurilkin, Alexander Isupov, and V. P. Ladygin
Subjects: Scattering cross-section, Physics, Elastic scattering, Range (particle radiation), Nuclotron, 010308 nuclear & particles physics, Scattering, QC1-999, 01 natural sciences, Nuclear physics, Transverse plane, 0103 physical sciences, Multiple scattering theory, Angular dependence, Nuclear Experiment, 010306 general physics
Abstract: The results of the differential cross section of elastic dp-scattering measurements at 500, 750 and 900 MeV/n, performed at the Internal Target Station at the JINR Nuclotron are presented. The angular dependence is compared with the world experimental data at close energies as well as with the theoretical calculations performed within the framework of the relativistic multiple scattering theory. The differential cross section at fixed scattering angles covered a total c.m. energy range $\rad{}{s} = 3.1 - 3.42\,{\rm{GeV}}$ were obtained. The results are compared with the behavior of the world data.
Published: 2019

40. The differential cross-section on dp-elastic scattering at 400–880 MeV obtained at Nuclotron

Author: A. Yu. Isupov, V. P. Ladygin, S. G. Reznikov, T. A. Vasiliev, A. K. Kurilkin, Marian Janek, S. M. Piyadin, J. T. Karachuk, A. N. Livanov, A. A. Terekhin, A. N. Khrenov, V.L. Rapatskiy, V. A. Krasnov, Yu. V. Gurchin, P. K. Kurilkin, and N. B. Ladygina
Subjects: Elastic scattering, Scattering cross-section, Physics, Nuclear physics, Nuclear and High Energy Physics, Nuclotron, Scintillation counter, Kinematics, Nuclear Experiment, Atomic and Molecular Physics, and Optics, Coincidence
Abstract: The results on the cross-section of dp -elastic scattering obtained at 400-880 MeV at internal target at Nuclotron are presented. The measurements have been performed using CH 2 and C targets and kinematic coincidence of signals from scintillation counters.
Published: 2013

41. Experiment on the Study of the dp→ppn Reaction at 300–500 Mev of the Deuteron Energy at ITS at Nuclotron

Author: S. G. Reznikov, V. P. Ladygin, A. Yu. Isupov, Marian Janek, Yu. V. Gurchin, A. K. Kurilkin, P. K. Kurilkin, S. M. Piyadin, G. Martinska, A. N. Livanov, J. T. Karachuk, A. N. Khrenov, B. Trpisova, A. A. Terekhin, and V. A. Krasnov
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Nuclotron, Deuterium, Breakup, Atomic and Molecular Physics, and Optics, Beam (structure), Energy (signal processing)
Abstract: The experiment on dp non-mesonic breakup at Internal Target Station at Nuclotron-M is presented. The first results on the study of the dp-breakup reaction with 300-500 MeV unpolarized deuteron beam are discussed. Selection procedure of useful events for the dp→ppn reaction with the registration of two protons is shown.
Published: 2013

42. Deuteron analyzing powers in dp- elastic scattering at large transverse momenta

Author: V. P. Ladygin, Ya.T. Skhomenko, A. A. Terekhin, Tomohiro Uesaka, S. G. Reznikov, Marian Janek, E. V. Chernykh, D. Enache, A. V. Averyanov, S. M. Piyadin, N. B. Ladygina, A. N. Livanov, A. V. Tishevsky, Yu. V. Gurchin, P. K. Kurilkin, A. Yu. Isupov, D. O. Krivenkov, J. T. Karachuk, I. S. Volkov, and A. N. Khrenov
Subjects: Nuclear physics, Physics, Elastic scattering, History, Transverse plane, Deuterium, Computer Science Applications, Education
Abstract: The results on the vector Ay and tensor Ayy and Axx analyzing powers in deuteronproton elastic scattering at large transverse momenta are presented. These data were obtained at internal target at JINR Nuclotron in the energy range 400-1800 MeV using polarized deuteron beam from new polarized ion source. New data on the deuteron analyzing powers in in the wide energy range demonstrate the sensitivity to the short-range spin structure of the isoscalar nucleon-nucleon correlations.
Published: 2020

43. Upgrade of the polarimeter at the Internal Target Station at the Nuclotron

Author: V. P. Ladygin, I. S. Volkov, Ya.T. Skhomenko, A. A. Terekhin, S. G. Reznikov, Marian Janek, I. E. Vnukov, A. Yu. Isupov, A. N. Khrenov, A. V. Averyanov, A. V. Shutov, D. O. Krivenkov, S. M. Piyadin, I. V. Slepnev, Yu. V. Gurchin, S. N. Bazylev, A. N. Livanov, P. K. Kurilkin, E. V. Chernykh, N. B. Ladygina, V. M. Slepnev, and A. V. Tishevsky
Subjects: Physics, History, Nuclotron, Scattering, Nuclear Theory, Frame (networking), Polarimeter, Spin structure, Proton energy, Computer Science Applications, Education, Nuclear physics, Upgrade, Nuclear Experiment, Nucleon
Abstract: The results of the Polarimeter upgrade at the Nuclotron internal target are presented. This Polarimeter is intended for experiments to study of the spin structure of two-nucleon and three- nucleon short-range correlations. The measurements are performed in the frame of the DSS project. The simulation of the pd-elastic and pp-elastic scattering for 500 - 1000 MeV proton energy to optimization of the experimental setup is performed.
Published: 2020

44. Cross section investigation in dp breakup reaction at the intermediate energies

Author: J. T. Karachuk, A. N. Khrenov, Yu. V. Gurchin, P. K. Kurilkin, S. M. Piyadin, Olena Mezhenska, S. G. Reznikov, V. P. Ladygin, A. N. Livanov, A. Yu. Isupov, I. E. Vnukov, Marian Janek, and A. A. Terekhin
Subjects: Nuclear physics, Physics, History, Cross section (physics), Nuclear Theory, Nuclear Experiment, Breakup, Computer Science Applications, Education
Abstract: The dp breakup reaction has been investigated by the scintillation detectors placed at the vicinity of Internal Target Station (ITS) of Nuclotron. Data have been obtained at the angles of 19° - 54° in the laboratory frame at the deuteron energy of 300 - 500 MeV in a various detector configurations in which the sensitivity to the three nucleon correlations and relativistic effects are assumed. Preliminary results of the five fold differential cross section for particular detector configurations of the dp breakup reaction at 400 MeV of deuteron energy have been obtained.
Published: 2020

45. Study of the polarization observables in dp → dp reaction at the deuteron energy of 800 MeV

Author: Olena Mezhenska, A. N. Livanov, V. P. Ladygin, A. A. Terekhin, E. V. Chernykh, J. T. Karachuk, D. Enache, A. V. Tishevsky, Yu. V. Gurchin, A. N. Khrenov, Ya.T. Skhomenko, P. K. Kurilkin, S. M. Piyadin, A. Yu. Isupov, D. O. Krivenkov, Marian Janek, J. Urban, Tomohiro Uesaka, S. G. Reznikov, N. D. Ladygina, and A. V. Averyanov
Subjects: Physics, Elastic scattering, Nuclear physics, History, Nuclotron, Deuterium, Observable, Tensor, Spin structure, Breakup, Nucleon, Computer Science Applications, Education
Abstract: The polarization observables are sensitive to the two nucleón (2NF) and three-nucleon structures (3NF) of the nuclei. The aim of the deuteron spin structure (DSS) experiment is to obtain polarization observables in dp elastic scattering at large CMS angles (> 60°) and in dp breakup. Of great importance is the study of polarizations observables in these reactions at intermediate energies because the experimental and theoretical data are very scarce. In this review, results of vector and tensor analyzing powers obtained at JINR Nuclotron at 800 MeV will be presented.
Published: 2020

46. The results of the deuteron beam polarization measurement for dp-elastic scattering reaction at 270 MeV energy

Author: S. G. Reznikov, A. V. Averyanov, V. P. Ladygin, D. Enache, Ya.T. Skhomenko, V. V. Fimushkin, E. V. Chernykh, J. T. Karachuk, A. N. Livanov, A. Yu. Isupov, A. S. Belov, D. O. Krivenkov, A. V. Tishevsky, A. N. Khrenov, Marian Janek, A. A. Terekhin, Yu. V. Gurchin, P. K. Kurilkin, and S. M. Piyadin
Subjects: Physics, Elastic scattering, History, Deuterium, Physics::Instrumentation and Detectors, Astrophysics::Instrumentation and Methods for Astrophysics, Beam polarization, Atomic physics, Nuclear Experiment, Energy (signal processing), Computer Science Applications, Education
Abstract: The current deuteron beam polarimetry at Nuclotron is provided by the Internal Target polarimeter based on the use of the asymmetry in dp- elastic scattering at large angles in the cms at 270 MeV. The upgraded deuteron beam polarimeter has been used obtain the vector and tensor polarization during 2016/2017 runs for the DSS experimental program. The polarimeter has been used also for tuning of the polarized ion source parameters for 6 different spin modes.
Published: 2020

47. pK+Λ final state: Towards the extraction of the ppK− contribution

Author: J. Wüstenfeld, C. Sturm, B. Ramstein, T. Hennino, Alexander Belyaev, B. Kämpfer, Tetyana Galatyuk, L. Lopes, M. Gumberidze, P. Cabanelas, Joachim Stroth, P. Huck, H. Schuldes, P. Tlusty, Kirill Lapidus, J. Friese, A. Sadovsky, K. Teilab, P. K. Kurilkin, J. Siebenson, G. Kornakov, W. Koenig, Y. Parpottas, R. Holzmann, J. Markert, A.P. Ierusalimov, A. Dybczak, D. Belver, J. C. Berger-Chen, T. A. Vasiliev, V. P. Ladygin, Yu.V. Zanevsky, R. Lalik, S. Lang, D. González-Díaz, C. Höhne, A. Krása, Tatiana Karavicheva, C. Behnke, S. P. Chernenko, A. Lebedev, Volker Metag, S. Spataro, I. Fröhlich, I. Koenig, J. Michel, M. B. Golubeva, Andrey Reshetin, A. B. Kurepin, A. Rustamov, H. Ströbele, M. Traxler, Marek Palka, M. Lorenz, Piotr Salabura, L. Naumann, O. V. Fateev, R. H. Munzer, O. Svoboda, A. K. Kurilkin, V. Wagner, L. Maier, B. W. Kolb, S. Harabasz, O. Pechenova, Laura Fabbietti, Fedor Guber, P. Strzempek, K. Gill, H. Kuc, L. Rehnisch, Grzegorz Korcyl, H. Tsertos, Michael Weber, Witold Przygoda, G. Agakishiev, E. Epple, S. Yurevich, A. Tarantola, E. Krebs, M. Böhmer, A. Mangiarotti, Yu. G. Sobolev, C. Müntz, A. Kugler, M. Jurkovic, J. A. Garzón, J. Pietraszko, V. Pechenov, A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, Christoph Blume, T. Scheib, C. Wendisch, Filip Krizek, and C. Dritsa
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Partial wave analysis, Hadron, Hyperon, Lambda baryon, 01 natural sciences, Resonance (particle physics), 0103 physical sciences, Bound state, 010306 general physics, Nucleon
Abstract: The reaction p ( @ 3.5 GeV ) + p → p + Λ + K + can be studied to search for the existence of kaonic bound states like p p K − leading to this final state. This effort has been motivated by the assumption that in p + p collisions the Λ ( 1405 ) resonance can act as a doorway to the formation of the kaonic bound states. The status of this analysis within the HADES Collaboration, with particular emphasis on the comparison to simulations, is shown in this work and the deviation method utilized by the DISTO Collaboration in a similar analysis is discussed. The outcome suggests the employment of a partial wave analysis do disentangle the different contributions to the measured p K + Λ final state.
Published: 2013

48. The cross-section in dp-elastic scattering at the energies of 500, 700 and 880 MeV obtained at the internal target station of Nuclotron

Author: V. A. Krasnov, J. T. Karachuk, S. G. Reznikov, M. Janek, V. P. Ladygin, N. B. Ladygina, A. A. Terekhin, Yu. V. Gurchin, T. A. Vasiliev, A. N. Khrenov, A. K. Kurilkin, A. N. Livanov, A. Yu. Isupov, P. K. Kurilkin, V.L. Rapatskiy, and S. M. Piyadin
Subjects: Elastic scattering, Physics, Nuclear and High Energy Physics, Nuclotron, Radiation, Scattering, Atomic and Molecular Physics, and Optics, Coincidence, Particle detector, Nuclear physics, Cross section (physics), Scintillation counter, Measuring instrument, Radiology, Nuclear Medicine and imaging, Nuclear Experiment
Abstract: The results on the cross-section of dp-elastic scattering reaction obtained at 500, 700 and 880 MeV at the internal target of Nuclotron are presented. The measurements have been performed using CH2 and C targets and kinematic coincidence of signals from scintillation counters. The cross-section data are compared with theoretical predictions and results of previous experiments.
Published: 2013

49. Optimization of a large aperture dipole magnet for baryonic matter studies at Nuclotron

Author: P. G. Akishin, A. Yu. Isupov, A. N. Khrenov, P. K. Kurilkin, V. P. Ladygin, S. M. Piyadin, and N. D. Topilin
Subjects: Physics, Nuclear and High Energy Physics, Nuclotron, Physics - Instrumentation and Detectors, Radiation, business.industry, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Large aperture, Atomic and Molecular Physics, and Optics, Magnetic field, Baryon, Optics, Dipole magnet, Magnet, Homogeneity (physics), Radiology, Nuclear Medicine and imaging, Nuclear Experiment, business
Abstract: The aperture of the dipole magnet SP41 has been enlarged for the studies of dense baryonic matter properties at Nuclotron. The homogeneity of the magnetic field in the magnet centre has been improved. The measurement results of the magnetic field components and integral are compared with results of 3D TOSCA calculations., 10 pages, 9 figures
Published: 2015

50. First extraction of the 3.42 A GeV 12C beam for studies of baryonic matter at Nuclotron

Author: A. K. Kurilkin, A. A. Terekhin, A. Yu. Isupov, A. N. Khrenov, V. P. Ladygin, S. G. Reznikov, Yu. V. Gurchin, P. K. Kurilkin, S. M. Piyadin, T. A. Vasiliev, A. N. Livanov, and J. Lukstins
Subjects: Physics, Nuclear and High Energy Physics, Nuclotron, Particle physics, Radiation, Hadron, Carbon-12, Phase (waves), Elementary particle, Fermion, Atomic and Molecular Physics, and Optics, Nuclear physics, Baryon, Physics::Accelerator Physics, Radiology, Nuclear Medicine and imaging, Nuclear Experiment, Beam (structure)
Abstract: The results of the first extraction of the 3.42 A GeV 12C beam at Nuclotron and its transportation to the experimental area is presented. It is demonstrated that the beam parameters are sufficient for the first phase of the experiments on the studies of the dense baryonic matter at Nuclotron.
Published: 2012

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114 results on '"A. K. Kurilkin"'

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