493 results on '"Kurilkin P."'
Search Results
2. Measurements of the Deuteron and Proton Beam Polarizations at Nuclotron
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Volkov, I. S., Ladygin, V. P., Skhomenko, Ya. T., Gurchin, Yu. V., Isupov, A. Yu., Janek, M., Karachuk, J.-T., Khrenov, A. N., Kurilkin, P. K., Livanov, A. N., Piyadin, S. M., Reznikov, S. G., Terekhin, A. A., Tishevsky, A. V., Averyanov, A. V., Chernykh, E. V., Enache, D., Krivenkov, D. O., and Vnukov, I. E.
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- 2024
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3. Time-Like Baryon Transitions studies with HADES
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Ramstein B., Adamczewski-Musch J., Arnold O., Arnoldi-Meadows B., Belounnas A., Belyaev A., Biernat J., Blanco A., Blume C., Böhmer M., Bordalo P., Chlad L., Chudoba P., Ciepał I., Deveaux C., Dittert D., Dreyer J., Fabbietti L., Fateev O., Fonte P., Franco C., Friese J., Fröhlich I., Galatyuk T., Garzón J. A., Gernhäuser R., Gillitzer A., Golubeva M., Greifenhagen R., Guber F., Gumberidze M., Harabasz S., Heinz T., Hennino T., Himmelreich M., Höhne C., Holzmann R., Ierusalimov A., Ivanov V., Ivashkin A., Kämpfer B., Kajetanowicz M., Kampert K-H., Karavicheva T., Kardan B., Khomyakov V., Koenig I., Koenig W., Korcyl G., Kornakov G., Kornas F., Kotte R., Kozela A., Kuboś J., Kugler A., Kunz T., Kurepin A., Kurilkin P., Kushpil V, Ladygin V., Lalik R., Lebedev A., Linev S., Liu M., Lopes L., Lorenz M., Lykasov G., Mahmoud T., Malakhov A., Markert J., Maurus S., Metag V., Michel J., Mihaylov D.M., Mikhaylov V., Morozov S., Müntz C., Naumann L., Nowakowski K., Parpottas Y., Patel V., Pauly C., Pechenov V., Pechenova O., Pereira A., Petousis V., Petukhov O., Pfeifer D., Pietraszko J., Przygoda W., Pysz K., Ramos S., Reshetin A., Ritman L., Rodriguez-Ramos P., Rost A., Sadovsky A., Salabura P., Scheib T., Schuldes H., Schwab E., Scozzi F., Seck F., Sellheim P., Selyuzhenkov I., Silva L., Smyrski J., Sobiella M., Spataro S., Spies S., Ströbele H., Stroth J., Strzempek P., Svoboda O., Szala M., Taranenko A., Tlusty P., Traxler M., Troyan A., Tsertos H., Wagner V., Wendisch C., Wiebusch M.G., Wintz P., Wirth J., Włoch B., Zhilin A., Zinchenko A., Zumbruch P., and Zuschke M.
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Physics ,QC1-999 - 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.
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- 2019
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4. Deuteron beam polarimeter at Nuclotron internal target
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Skhomenko Ya.T., Ladygin V.P., Gurchin Yu.V., Isupov A.Yu., Janek M., Karachuk J.-T., Khrenov A.N., Kurilkin P.K., Livanov A.N., Piyadin S.M., Reznikov S.G., Terekhin A.A., Tishevsky A.V., Averyanov A.V., Belov A.S., Chernykh E.V., Enache D., Fimushkin V.V., Krivenkov D.O., Vnukov I.E., and Volkov I.S.
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Physics ,QC1-999 - 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
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- 2019
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5. Energy dependence of the vector Ay and tensor Ayy and Axx analyzing powers in deuteron-proton elastic scattering at large scattering angles
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Ladygin V.P., Averyanov A.V., Chernykh E.V., Enache D., Gurchin Yu.V., Isupov A.Yu., Janek M., Karachuk J.-T., Khrenov A.N., Krivenkov D.O., Kurilkin P.K., Ladygina N.B., Livanov A.N., Mezhenska O., Piyadin S.M., Reznikov S.G., Skhomenko Ya.T., Terekhin A.A., Tishevsky A.V., and Uesaka T.
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Physics ,QC1-999 - Abstract
The results on the angular dependencies of the vector Ay and tensor Ayy and Axx analyzing 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.
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- 2019
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6. Deuteron beam polarization measurement at 270 MeV at Nuclotron internal target
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Skhomenko Ya.T., Ladygin V.P., Gurchin Yu.V., Isupov A.Yu., Janek M., Karachuk J.T., Khrenov A.N., Kurilkin P.K., Livanov A.N., Piyadin S.M., Reznikov S.G., Terekhin A.A., Tishevsky A.V., Averyanov A.V., Belov A.S., Chernykh E.V., Enache D., Fimushkin V.V., Krivenkov D.O., Vnukov I.E., and Volkov I.S.
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Physics ,QC1-999 - 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.
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- 2019
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7. Study of the deuteron analyzing powers in dp elastic scattering at the energy of 800 MeV
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Mezhenska O., Averyanov A.V., Chernykh E.V., Enache D., Gurchin Yu.V., Isupov A.Yu., Janek M., Karachuk J.-T., Khrenov A.N., Krivenkov D.O., Kurilkin P.K., Ladygin V.P., Ladygina N.B., Livanov A.N., Piyadin S.M., Reznikov S.G., Skhomenko Ya.T., Terekhin A.A., Tishevsky A.V., Uesaka T., and Urban J.
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Physics ,QC1-999 - 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.
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- 2019
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8. Dp breakup reaction investigation under specific kinematic configurations at ITS of the Nuclotron
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Janek M., Averyanov A.V., Chernykh E.V., Enache D., Gurchin Yu.V., Isupov A.Yu., Mezhenska O., Karachuk J.-T., Khrenov A.N., Krivenkov D.O., Kurilkin P.K., Ladygin V.P., Ladygina N.B., Livanov A.N., Piyadin S.M., Reznikov S.G., Skhomenko Ya.T., Tarjanyiova G., Terekhin A.A., Tishevsky A.V., Uesaka T., and Urban J.
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Physics ,QC1-999 - Abstract
Dp breakup reaction is investigated in the energy range 300-500 MeV at the Internal Target of the Nuclotron using unpolarized and polarized beams by DSS collaboration. The goal of the study is to obtain information about nucleon-nucleon correlations at short distances, non-nucleonic degrees of freedom and relativistic effects. A part of the breakup data at 300 MeV and 400 MeV has been obtained in kinematics where relativistic effects would have a significant contribution.
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- 2019
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9. Vector Analyzing Power in Quasi-Elastic Proton-Proton Scattering at an Energy of 500 MeV/nucleon
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Volkov, I. S., Averyanov, A. V., Vnukov, I. E., Gurchin, Yu. V., Enache, D., Isupov, A. Yu., Karachuk, Yu.-T., Krivenkov, D. O., Kurilkin, P. K., Ladygin, V. P., Livanov, A. N., Piyadin, S. M., Reznikov, S. G., Skhomenko, Ya. T., Terekhin, A. A., Tishevsky, A. V., Khrenov, A. N., Chernykh, E. V., and Yanek, M.
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- 2024
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10. Investigation of reactions using polarized and unpolarized deuteron beam at Nuclotron: current status and perspectives
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Janek M., Ladygin V.P., Avdeichikov V.V., Averyanov A.V., Belov A.S., Fimushkin V.V., Gurchin Yu.V., Isupov A.Yu., Karachuk J-T., Khrenov A.N., Krivenkov D.O., Kurilkin A.K., Kurilkin P.K., Ladygina N.B., Livanov A.N., Martinska G., Piyadin S.M., Reznikov S.G., Tarjanyiova G., Terekhin A.A., Skhomenko Ya.T., Vnukov I.E., and Zolin L.S.
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Physics ,QC1-999 - Abstract
Deuteron induced reactions at intermediate energies are investigated at Internal Target Station (ITS) of Nuclotron. The dp elastic scattering data have been accumulated in the angular range (70° - 120°) in c.m from 0.3 to 2.0 GeV of deuteron energy. Part of the obtained results of differential cross sections and analyzing powers of dp elastic scattering are compared with theoretical predictions based on relativistic multi-scattering model. The dp breakup data are obtained with the detection of two outgoing protons at the angles of (19° - 54°) in laboratory frame at the deuteron energies from 0.3 to 0.5 GeV in various detector configurations. One of the tools to study spin structure of short range correlations is the measurements of the cross section, tensor analyzing power T20 and spin correlation parameter Cy,y in the d3He → p(0°)4He reaction at the energies between 1.0 and 1.75 GeV using polarized 3He target and extracted polarized deuteron beam from new polarized ion source at Nuclotron. For this purposes the feasibility study has been performed. Proposed experiments on extracted deuteron beam of Nuclotron is aimed to investigate: non-nucleonic degrees of freedom and baryonic resonances properties in the d(A,d(0°))X and d(A,π-(0°))X reactions at different energies, non-nucleonic degrees of freedom via the measurements of the tensor Ayy and vector Ay analyzing powers in d(A,π-)X reaction and polarization properties of the baryonic resonances in the d(A,d)X reaction and others. First measurement of vector and tensor polarization of new polarized ion source has been performed in June-July of 2016y.
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- 2017
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11. Impact of the Coulomb field on charged-pion spectra in few-GeV heavy-ion collisions
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Adamczewski-Musch, J., Arnold, O., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Blanco, A., Blume, C., Böhmer, M., Bordalo, P., Chernenko, S., Chlad, L., Ciepał, I., Deveaux, C., Dreyer, J., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Galatyuk, T., Garzon, J. A., Gernhäuser, R., Golubeva, M., Greifenhagen, R., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., Höhne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kämpfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kohls, M., Kolb, B. W., Korcyl, G., Kornakov, G., Kornas, F., Kotte, R., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Linev, S., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Malige, A., Mangiarotti, A., Markert, J., Matulewicz, T., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Morozov, S., Müntz, C., Münzer, R., Nabroth, M., Naumann, L., Nowakowski, K., Parpottas, Y., Parschau, M., Pechenov, V., Pechenova, O., Petukhov, O., Piasecki, K., Pietraszko, J., Przygoda, W., Pysz, K., Ramos, S., Ramstein, B., Rathod, N., Reshetin, A., Rodriguez-Ramos, P., Rosier, P., Rost, A., Rustamov, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schild, N., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Selyuzhenkov, I., Siebenson, J., Silva, L., Singh, U., Smyrski, J., Sobolev, Yu. G., Spataro, S., Spies, S., Ströbele, H., Stroth, J., Sturm, C., Sumara, K., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Zanevsky, Y., and Zumbruch, P.
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Nuclear Experiment - Abstract
In nuclear collisions the incident protons generate a Coulomb field which acts on produced charged particles. The impact of these interactions on charged pion transverse-mass and rapidity spectra, as well as on pion-pion momentum correlations is investigated in Au+Au collisions at $\sqrt{s_{NN}}$ = 2.4 GeV. We show that the low-mt part of the data ($m_t < 0.2$ GeV/c$^2$) can be well described with a Coulomb-modified Boltzmann distribution that also takes changes of the Coulomb field during the expansion of the fireball into account. The observed centrality dependence of the fitted mean Coulomb potential deviates strongly from a $A_{part}^{2/3}$ scaling, indicating that, next to the fireball, the non-interacting charged spectators have to be taken into account. For the most central collisions, the Coulomb modifications of the HBT source radii are found to be consistent with the potential extracted from the single-pion transverse-mass distributions. This finding suggests that the region of homogeneity obtained from two-pion correlations coincides with the region in which the pions freeze-out. Using the inferred mean-square radius of the charge distribution at freeze-out, we have deduced a baryon density, in fair agreement with values obtained from statistical hadronization model fits to the particle yields., Comment: 14 pages, 12 figures, to be published in EPJA
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- 2022
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12. Deuteron Beam Vector Polarization Measurement Using Proton–Proton Quasielastic Scattering at the Energies of 500 and 650 MeV/nucleon
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Volkov, I. S., Ladygin, V. P., Skhomenko, Ya. T., Gurchin, Yu. V., Isupov, A. Yu., Janek, M., Karachuk, J. T., Khrenov, A. N., Kurilkin, P. K., Livanov, A. N., Piyadin, S. M., Reznikov, S. G., Terekhin, A. A., Tishevsky, A. V., Averyanov, A. V., Chernykh, E. V., Enache, D., Krivenkov, D. O., and Vnukov, I. E.
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- 2023
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13. Investigation of the compressed baryonic matter at the GSI accelerator complex
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Ladygin V.P., Ablyazimov T.O., Akishin P.G., Akishina E.P., Akishina V.P., Baznat M.I., Boguslavsky I.V., Borshchov V.N., Bychkov A.V., Dementiev D.V., Derenovskaya O.Yu., Elsha V.V., Gudima K.K., Gusakov Yu.V., Igolkin S.N., Isupov A.Yu., Ivanov V.V., Kekelidze G.D., Khrenov A.N., Kisel P.I., Korolev M.G., Kozlov G.E., Kramarenko V.A., Kurilkin P.K., Ladygina N.B., Lysan V.M., Malakhov A.I., Martinovsky I.P., Merkin M.M., Murin Yu.A., Parzhitsky S.S., Penkin V.A., Piyadin S.M., Protsenko M.A., Savenkov A.A., Shabunov A.V., Shafranovskaya A.I., Sheremetiev A.D., Tarasov O.G., Tymchuk I.T., Zamiatin N.I., Zinchenko A.I., and Zubarev E.V.
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Physics ,QC1-999 - Abstract
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 (√sNN = 2-4.9 GeV) is to discover fundamental properties of QCD matter, namely, the equation-of-state at high density as it is expected to occur in the core of neutron stars, effects of chiral symmetry, and the phase structure at large baryon-chemical potentials (μB ≥ 500 MeV). We are focusing here on the contribution of JINR to the CBM experiment: design of the superconducting dipole magnet; manufacture of the straw and micro-strip silicon detectors, participation in the data taking and analysis algorithms and physics program.
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- 2017
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14. Superconducting dipole magnet for the CBM experiment at FAIR
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Kurilkin P., Akishin P., Bychkov A., Floch E., Gusakov Yu., Ladygin V., Malakhov A., Moritz G., Ramakers H., Senger P., Shabunov A., Szwangruber P., and Toral F.
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Physics ,QC1-999 - 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 5.15 MJ superconducting dipole magnet will be used in the silicon tracking system of the CBM detector. The magnet will provide a magnetic field integral of 1 Tm which is required to obtain a momentum resolution of 1% for the track reconstruction. The results of the development of dipole magnet of the CBM experiment are presented.
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- 2017
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15. Experimental investigation of dp → ppn reaction at intermediate energies at Nuclotron
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Janek M., Ladygin V. P., Piyadin S. M., Gurchin Yu. V., Isupov A. Yu., Karachuk J-T., Khrenov A. N., Kurilkin A. K., Kurilkin P. K., Livanov A. N., Martinska G., Reznikov S. G., Tarjanyiova G., Terekhin A. A., and Vnukov I. E.
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Physics ,QC1-999 - Abstract
There are still discrepancies between theory and experimental data in the polarisation observables of dp → ppn reaction in the low and intermediate energies, despite of significant process in the development of theoretical models which include three and more nucleon forces and relativistic effects. The data of dp → ppn reaction have been accumulated at 300, 400 and 500 MeV in the Nuclotron (Dubna, Russia) and partially processed for some kinematic configurations including few in which possible relativistic effects can appear. Kinematic simulation in the framework of ROOT and GEANT4 package have been performed before data processing. Part of the preliminary results are obtained in the form of energy deposit correlations of the two arms working in coincidence and few in the form of kinematic S curve.
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- 2016
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16. Deuteron analyzing powers $A_y$, $A_{yy}$ and $A_{xx}$ in dp-elastic scattering at large transverse momenta
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Ladygin, V. P., Averyanov, A. V., Chernykh, E. V., Enache, D., Gurchin, Yu. V., Isupov, A. Yu., Janek, M., Karachuk, J. -T., Khrenov, A. N., Krivenkov, D. O., Kurilkin, P. K., Ladygina, N. B., Livanov, A. N., Mezhenska, O., Piyadin, S. M., Reznikov, S. G., Skhomenko, Ya. T., Terekhin, A. A., Tishevsky, A. V., Uesaka, T., and Volkov, I. S.
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Nuclear Experiment - Abstract
The results on the the vector $A_y$, $A_{yy}$ and $A_{xx}$ analyzing powers in deuteron-proton elastic scattering at large scattering angles 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 the wide energy range demonstrate the sensitivity to the short-range spin structure of the isoscalar nucleon-nucleon correlations., Comment: 5 pages, 2 figures, SPIN2021 Conference
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- 2022
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17. Investigating hadronic resonances in pp interactions with HADES
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Przygoda Witold, Adamczewski-Musch J., Arnold O., Atomssa E.T., Behnke C., Berger-Chen J.C., Biernat J., Blanco A., Blume C., Böhmer M., Bordalo P., Chernenko S., Deveaux C., Dybczak A., Epple E., Fabbietti L., Fateev O., Fonte P., Franco C., Friese J., Fröhlich I., Galatyuk T., Garzón J. A., Gill K., Golubeva M., Guber F., Gumberidze M., Harabasz S., Hennino T., Hlavac S., Höhne C., Holzmann R., Ierusalimov A., Ivashkin A., Jurkovic M., Kämpfer B., Karavicheva T., Kardan B., Koenig I., Koenig W., Kolb B. W., Korcyl G., Kornakov G., Kotte R., Krása A., Krebs E., Kuc H., Kugler A., Kunz T., Kurepin A., Kurilkin A., Kurilkin P., Ladygin V., Lalik R., Lapidus K., Lebedev A., Lopes L., Lorenz M., Mahmoud T., Maier L., Mangiarotti A., Markert J., Metag V., Michel J., Müntz C., Münzer R., Naumann L., Palka M., Parpottas Y., Pechenov V., Pechenova O., Petousis V., Pietraszko J., Ramstein B., Rehnisch L., Reshetin A., Rost A., Rustamov A., Sadovsky A., Salabura P., Scheib T., Schmidt-Sommerfeld K., Schuldes H., Sellheim P., Siebenson J., Silva L., Sobolev Yu.G., Spataro S., Ströbele H., Stroth J., Strzempek P., Sturm C., Svoboda O., Tarantola A., Teilab K., Tlusty P., Traxler M., Tsertos H., Vasiliev T., Wagner V., Wendisch C., Wirth J., Wüstenfeld J., Zanevsky Y., and Zumbruch P.
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Physics ,QC1-999 - Abstract
In this paper we report on the investigation of baryonic resonance production in proton-proton collisions at the kinetic energies of 1.25 GeV and 3.5 GeV, based on data measured with HADES. Exclusive channels npπ+ and ppπ0 as well as ppe+e− were studied simultaneously in the framework of a one-boson exchange model. The resonance cross sections were determined from the one-pion channels for Δ(1232) and N(1440) (1.25 GeV) as well as further Δ and N* resonances up to 2 GeV/c2 for the 3.5 GeV data. The data at 1.25 GeV energy were also analysed within the framework of the partial wave analysis together with the set of several other measurements at lower energies. The obtained solutions provided the evolution of resonance production with the beam energy, showing a sizeable non-resonant contribution but with still dominating contribution of Δ(1232)P33. In the case of 3.5 GeV data, the study of the ppe+e− channel gave the insight on the Dalitz decays of the baryon resonances and, in particular, on the electromagnetic transition form-factors in the time-like region. We show that the assumption of a constant electromagnetic transition form-factors leads to underestimation of the yield in the dielectron invariant mass spectrum below the vector mesons pole. On the other hand, a comparison with various transport models shows the important role of intermediate ρ production, though with a large model dependency. The exclusive channels analysis done by the HADES collaboration provides new stringent restrictions on the parameterizations used in the models.
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- 2015
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18. Highlights of Resonance Measurements With HADES
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Epple Eliane, Adamczewski-Musch J., Arnold O., Atomssa E.T., Behnke C., Berger-Chen J.C., Biernat J., Blanco A., Blume C., Böhmer M., Bordalo P., Chernenko S., Deveaux C., Dybczak A., Fabbietti L., Fateev O., Fonte P., Franco C., Friese J., Fröhlich I., Galatyuk T., Garzón J. A., Gill K., Golubeva M., Guber F., Gumberidze M., Harabasz S., Hennino T., Hlavac S., Höhne C., Holzmann R., Ierusalimov A., Ivashkin A., Jurkovic M., Kämpfer B., Karavicheva T., Kardan K., Koenig I., Koenig W., Kolb B. W., Korcyl G., Kornakov G., Kotte R., Krása A., Krebs E., Kuc H., Kugler A., Kunz T., Kurepin A., Kurilkin A., Kurilkin P., Ladygin V., Lalik R., Lapidus K., Lebedev A., Lopes L., Lorenz M., Mahmoud T., Maier L., Mangiarotti A., Markert J., Metag V., Michel J., Müntz C., Münzer R., Naumann L., Palka M., Parpottas Y., Pechenov V., Pechenova O., Petousis V., Pietraszko J., Przygoda W., Ramstein B., Rehnisch L., Reshetin A., Rost A., Rustamov A., Sadovsky A., Salabura P., Scheib T., Schmidt-Sommerfeld K., Schuldes H., Sellheim P., Siebenson J., Silva L., Sobolev Yu.G., Spataro S., Ströbele H., Stroth J., Strzempek P., Sturm C., Svoboda O., Tarantola A., Teilab K., Tlusty P., Traxler M., Tsertos H., Vasiliev T., Wagner V., Wendisch C., Wirth J., Wüstenfeld J., Zanevsky Y., and Zumbruch P.
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Physics ,QC1-999 - Abstract
This contribution aims to give a basic overview of the latest results regarding the production of resonances in different collision systems. The results were extracted from experimental data collected with HADES that is a multipurpose detector located at the GSI Helmholtzzentrum, Darmstadt. The main points discussed here are: the properties of the strange resonances Λ(1405) and Σ(1385), the role of Δ’s as a source of pions in the final state, the production dynamics reflected in form of differential cross sections, and the role of the ϕ meson as a source for K− particles.
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- 2015
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19. Correlated pion-proton pair emission off hot and dense QCD matter
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Adamczewski-Musch, J., Arnold, O., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Blanco, A., Blume, C., B"ohmer, M., Bordalo, P., Chernenko, S., Chlad, L., Ciepal, I., Deveaux, C., Dreyer, J., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Fonte, P., Franco, C., Friese, J., Fr"ohlich, I., Galatyuk, T., Garzon, J. A., Gernh"auser, R., Golubeva, M., Greifenhagen, R., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., H"ohne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., K"ampfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kohls, M., Kolb, B. W., Korcyl, G., Kornakov, G., Kornas, F., Kotte, R., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Malige, A., Mangiarotti, A., Markert, J., Matulewicz, T., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Morozov, S., M"untz, C., M"unzer, R., Naumann, L., Nowakowski, K., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Piasecki, K., Pietraszko, J., Przygoda, W., Pysz, K., Ramos, S., Ramstein, B., Rathod, N., Reshetin, A., Rodriguez-Ramos, P., Rosier, P., Rost, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Selyuzhenkov, I., Siebenson, J., Silva, L., Singh, U., Smyrski, J., Sobolev, Yu. G., Spataro, S., Spies, S., Str"obele, H., Stroth, J., Sturm, C., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Wojcik, D., Zanevsky, Y., and Zumbruch, P.
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Nuclear Experiment - 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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20. Directed, elliptic and higher order flow harmonics of protons, deuterons and tritons in Au+Au collisions at $\sqrt{s_{NN}} = 2.4$ GeV
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HADES collaboration, Adamczewski-Musch, J., Arnold, O., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Blanco, A., Blume, C., Böhmer, M., Bordalo, P., Chernenko, S., Chlad, L., Ciepal, I., Deveaux, C., Dreyer, J., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Galatyuk, T., Garzón, J. A., Gernhäuser, R., Golosov, O., Golubeva, M., Greifenhagen, R., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., Höhne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kämpfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kohls, M., Kolb, B. W., Korcyl, G., Kornakov, G., Kornas, F., Kotte, R., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Malige, A., Mamaev, M., Mangiarotti, A., Markert, J., Matulewicz, T., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Morozov, S., Müntz, C., Münzer, R., Naumann, L., Nowakowski, K., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Piasecki, K., Pietraszko, J., Przygoda, W., Pysz, K., Ramos, S., Ramstein, B., Rathod, N., Reshetin, A., Rodriguez-Ramos, P., Rosier, P., Rost, A., Rustamov, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Selyuzhenkov, I., Siebenson, J., Silva, L., Singh, U., Smyrski, J., Sobolev, Yu. G., Spataro, S., Spies, S., Ströbele, H., Stroth, J., Sturm, C., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Wójcik, D., Zanevsky, Y., and Zumbruch, P.
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Nuclear Experiment - Abstract
Flow coefficients $v_{n}$ 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 $\sqrt{s_{NN}} = 2.4$ GeV. Combining the information from the flow coefficients of all orders allows to construct for the first time, at collision energies of a few GeV, a multi-differential 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., Comment: 6 pages, 5 figures; Figs. 2, 3 and 5 updated from re-analysis of data including UrQMD model predictions. Plotting error in Fig. 4 corrected; Accepted for publication in Phys. Rev. Lett
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- 2020
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21. Charged pion production in $\mathbf{Au+Au}$ collisions at $\mathbf{\sqrt{s_{NN}}}$ = 2.4$\mathbf{GeV}$
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Adamczewski-Musch, J., Arnold, O., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Biernat, J., Blanco, A., Blume, C., Boehmer, M., Bordalo, P., Chernenko, S., Chlad, L., Ciepal, I., Deveaux, C., Dreyer, J., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Fonte, P., Franco, C., Friese, J., Froehlich, I., Galatyuk, T., Garzon, J. A., Gernhaeuser, R., Glaessel, S., Golubeva, M., Greifenhagen, R., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., Höhne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kämpfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kohls, M., Kolb, B. W., Korcyl, G., Kornakov, G., Kornas, F., Kotte, R., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Malige, A., Mangiarotti, A., Markert, J., Matulewicz, T., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Morozov, S., Muentz, C., Muenzer, R., Naumann, L., Nowakowski, K., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Piasecki, K., Pietraszko, J., Przygoda, W., Pysz, K., Ramos, S., Ramstein, B., Reshetin, A., Rodriguez-Ramos, P., Rathod, N., Rosier, P., Rost, A., Rustamov, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Selyuzhenkov, I., Siebenson, J., Silva, L., Singh, U., Smyrski, J., Sobolev, Yu. G., Spataro, S., Spies, S., Stroebele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Wojcik, D., Zanevsky, Y., and Zumbruch, P.
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Nuclear Experiment - Abstract
We present high-statistic data on charged pion emission from Au+Au collisions at $\sqrt{s_{\rm{NN}}}$ = 2.4 GeV (corresponding to $E_{beam}$ = 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 world data, but undershoot by $2.5 \sigma$ 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., Comment: 17 pages, 19 figures, 4 tables
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- 2020
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22. Two-Pion production in the second resonance region in $\pi^- p$ collisions with HADES
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Adamczewski-Musch, J., Arnold, O., Atomssa, E. T., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Biernat, J., Blanco, A., Blume, C., Böhmer, M., Chernenko, S., Chlad, L., Chudoba, P., Ciepał, I., Deveaux, C., Dittert, D., Dreyer, J., Epple, E., Fabbietti, L., Fateev, O., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Galatyuk, T., Garzón, J. A., Gernhäuser, R., Golubeva, M., Greifenhagen, R., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Höhne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kämpfer, B., Kardan, B., Koenig, I., Koenig, W., Kolb, B. W., Korcyl, G., Kornakov, G., Kornas, F., Kotte, R., Kuboś, J., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Linev, S., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Malige, A., Markert, J., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Mikhaylov, V., Morozov, S., Müntz, C., Münzer, R., Naumann, L., Nowakowski, K., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Pietraszko, J., Prozorov, A. P., Przygoda, W., Ramstein, B., Rathod, N., Reshetin, A., Rodriguez-Ramos, P., Rost, A., Sadovsky, A., Salabura, P., Scheib, T., Schmidt-Sommerfeld, K., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Siebenson, J., Silva, L., Sing, U., Smyrski, J., Spataro, S., Spies, S., Ströbele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Ungethüm, C., Vazquez-Doce, O., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Wójcik, D., Zanevsky, Y., and Zumbruch, P.
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Nuclear Experiment - 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 $BR=12.2 \pm 1.9\%$.
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- 2020
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23. Proton number fluctuations in $\sqrt{s_{NN}}$ = 2.4 GeV Au+Au collisions studied with HADES
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Adamczewski-Musch, J., Arnold, O., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Biernat, J., Blanco, A., Blume, C., B"ohmer, M., Bordalo, P., Chernenko, S., Chlad, L., Deveaux, C., Dreyer, J., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Fonte, P., Franco, C., Friese, J., Fr"ohlich, I., Galatyuk, T., Garzon, J. A., Gernh"auser, R., Golubeva, M., Greifenhagen, R., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., H"ohne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., K"ampfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kohls, M., Kolb, B. W., Korcyl, G., Kornakov, G., Kornas, F., Kotte, R., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Mangiarotti, A., Markert, J., Matulewicz, T., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Morozov, S., M"untz, C., M"unzer, R., Naumann, L., Nowakowski, K., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Piasecki, K., Pietraszko, J., Przygoda, W., Ramos, S., Ramstein, B., Reshetin, A., Rodriguez-Ramos, P., Rosier, P., Rost, A., Rustamov, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Selyuzhenkov, I., Siebenson, J., Silva, L., Sobolev, Yu. G., Spataro, S., Spies, S., Str"obele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Zanevsky, Y., and Zumbruch, P.
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Nuclear Experiment - Abstract
We present an analysis of proton number fluctuations in $\sqrt{s_{NN}}$ = 2.4 GeV Au+Au collisions measured with the High-Acceptance DiElectron Spectrometer (HADES) at GSI. With the help of extensive detector simulations done with 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, . . . , 4 have been obtained as a function of centrality and phase-space bin, as well as the corresponding correlators C_n . We find that the observed correlators show a power-law scaling with the mean number of protons, i.e. $C_n \propto
^n$, indicative of mostly long-range multi-particle correlations in momentum space. We also present a comparison of our results with Au+Au collision data obtained at RHIC at similar centralities, but higher $\sqrt{s_{NN}}$., Comment: 35 pages, 33 figures - Published
- 2020
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24. Low mass dielectrons radiated off cold nuclear matter measured with HADES
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Lorenz M., Agakishiev G., Behnke C., Belver D., Belyaev A., Berger-Chen J.C., Blanco A., Blume C., Böhmer M., Cabanelas P., Chernenko S., Dritsa C., Dybczak A., Epple E., Fabbietti L., Fateev O., Fonte P., Friese J., Fröhlich I., Galatyuk T., Garzón J. A., Gill K., Golubeva M., González-Díaz D., Guber F., Gumberidze M., Harabasz S., Hennino T., Höhne C., Holzmann R., Huck P., Ierusalimov A., Ivashkin A., Jurkovic M., Kämpfer B., Karavicheva T., Koenig I., Koenig W., Kolb B. W., Korcyl G., Kornakov G., Kotte R., Krása A., Krebs E., Krizek F., Kuc H., Kugler A., Kurepin A., Kurilkin A., Kurilkin P., Ladygin V., Lalik R., Lang S., Lapidus K., Lebedev A., Lopes L., Maier L., Mangiarotti A., Markert J., Metag V., Michel J., Müntz C., Münzer R., Naumann L., Palka M., Parpottas Y., Pechenov V., Pechenova O., Pietraszko J., Przygoda W., Ramstein B., Rehnisch L., Reshetin A., Rustamov A., Sadovsky A., Salabura P., Scheib T., Schuldes H., Siebenson J., Sobolev Yu.G., Spataro S., Ströbele H., Stroth J., Strzempek P, Sturm C., Svoboda O., Tarantola A., Teilab K., Tlusty P., Traxler M., Tsertos H., Vasiliev T., Wagner V., Weber M., Wendisch C., Wüstenfeld J., Yurevich S., and Zanevsky Y.
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Physics ,QC1-999 - Abstract
The High Acceptance DiElectron Spectrometer HADES [1] is installed at the Helmholtzzentrum für Schwerionenforschung (GSI) accelerator facility in Darmstadt. It investigates dielectron emission and strangeness production in the 1-3 AGeV regime. A recent experiment series focusses on medium-modifications of light vector mesons in cold nuclear matter. In two runs, p+p and p+Nb reactions were investigated at 3.5 GeV beam energy; about 9·109 events have been registered. In contrast to other experiments the high acceptance of the HADES allows for a detailed analysis of electron pairs with low momenta relative to nuclear matter, where modifications of the spectral functions of vector mesons are predicted to be most prominent. Comparing these low momentum electron pairs to the reference measurement in the elementary p+p reaction, we find in fact a strong modification of the spectral distribution in the whole vector meson region.
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- 2014
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25. In-medium hadron properties measured with HADES
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Pietraszko J., Agakishiev G., Behnke C., Belver D., Belyaev A., Berger-Chen J.C., Blanco A., Blume C., Böhmer M., Cabanelas P., Chernenko S., Dritsa C., Dybczak A., Epple E., Fabbietti L., Fateev O., Fonte P., Friese J., Fröhlich I., Galatyuk T., Garzón J. A., Gill K., Golubeva M., González-Díaz D., Guber F., Gumberidze M., Harabasz S., Hennino T., Höhne C., Holzmann R., Huck P., Ierusalimov A., Ivashkin A., Jurkovic M., Kämpfer B., Karavicheva T., Koenig I., Koenig W., Kolb B. W., Korcyl G., Kornakov G., Kotte R., Krása A., Krebs E., Krizek F., Kuc H., Kugler A., Kurepin A., Kurilkin A., Kurilkin P., Ladygin V., Lalik R., Lang S., Lapidus K., Lebedev A., Lopes L., Lorenz M., Maier L., Mangiarotti A., Markert J., Metag V., Michel J., Müntz C., Münzer R., Naumann L., Palka M., Parpottas Y., Pechenov V., Pechenova O., Przygoda W., Ramstein B., Rehnisch L., Reshetin A., Rustamov A., Sadovsky A., Salabura P., Scheib T., Schuldes H., Siebenson J., Sobolev Yu.G., Spataro S., Ströbele H., Stroth J., Strzempek P, Sturm C., Svoboda O., Tarantola A., Teilab K., Tlusty P., Traxler M., Tsertos H., Vasiliev T., Wagner V., Weber M., Wendisch C., Wüstenfeld J., Yurevich S., and Zanevsky Y.
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Physics ,QC1-999 - Abstract
Many QCD based and phenomenological models predict changes of hadron properties in a strongly interacting environment. The results of these models differ significantly and the experimental determination of hadron properties in nuclear matter is essential. In this paper we present a review of selected physics results obtained at GSI Helmholtzzentrum für Schwerionenforschung GmbH by HADES (High-Acceptance Di-Electron Spectrometer). The e+e− pair emission measured for proton and heavy-ion induced collisions is reported together with results on strangeness production. The future HADES activities at the planned FAIR facility are also discussed.
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- 2014
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26. Measurement of the quasi free np → npπ+π− and np → ppπ−π0 reactions at 1.25 GeV With HADES
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Kurilkin A., Arnold O., Atomssa E. T., Behnke C., Belyaev A., Berger-Chen J. C., Biernat J., Blanco A., Blume C., Böhmer M., Bordalo P., Chernenko S., Deveaux C., Dybczak A., Epple E., Fabbietti L., Fateev O., Fonte P., Franco C., Friese J., Fröhlich I., Galatyuk T., Garzón J. A., Gill K., Golubeva M., González-Díaz D., Guber F., Gumberidze M., Harabasz S., Hennino T., Höhne C., Holzmann R., Ierusalimov A., Ivashkin A., Jurkovic M., Kämpfer B., Karavicheva T., Kardan K., Koenig I., Koenig W., Kolb B. W., Korcyl G., Kornakov G., Kotte R., Krása A., Krebs E., Krizek F., Kuc H., Kugler A., Kunz T., Kurepin A., Kurilkin P., Ladygin V., Lalik R., Lang S., Lapidus K., Lebedev A., Lopes L., Lorenz M., Maier L., Mangiarotti A., Markert J., Metag V., Michel J., Müntz C., Münzer R., Naumann L., Palka M., Pechenov V., Pechenova O., Petousis V., Pietraszko J., Przygoda W., Ramstein B., Rehnisch L., Reshetin A., Rost A., Rustamov A., Sadovsky A., Salabura P., Scheib T., Schmidt-Sommerfeld K., Schuldes H., Sellheim P., Siebenson J., Silva L., Sobolev Yu. G., Spataro S., Ströbele H., Stroth J., Strzempek P., Sturm C., Svoboda O., Tarantola A., Teilab K., Tlusty P., Traxler M., Tsertos H., Vasiliev T., Wagner V., Wendisch C., Wirth J., Wüstenfeld J., Yurevich S., and Zanevsky Y.
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Physics ,QC1-999 - Abstract
We present the results of two-pion production in tagged quasi-free np collisions at a deutron incident beam energy of 1.25 GeV/c measured with the High-Acceptance Di-Electron Spectrometer (HADES) installed at GSI. The specific acceptance of HADES allowed for the first time to obtain high-precision data on π+π− and π−π0 production in np collisions in a region corresponding to large transverse momenta of the secondary particles. The obtained differential cross section data provide strong constraints on the production mechanisms and on the various baryon resonance contributions (∆∆, N(1440), N(1520), ∆(1600)). The invariant mass and angular distributions from the np → npπ+π −and np → ppπ−π0 reactions are compared with different theoretical model predictions.
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- 2014
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27. HADES results in elementary reactions
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Ramstein B., Adamczewski-Musch J., Arnold O., Atomssa E.T., Behnke C., Berger-Chen J.C., Biernat J., Blanco A., Blume C., Böhmer M., Bordalo P., Chernenko S., Deveaux C., Dybczak A., Epple E., Fabbietti L., Fateev O., Fonte P., Franco C., Friese J., Fröhlich I., Galatyuk T., Garzón J. A., Gill K., Golubeva M., Guber F., Gumberidze M., Harabasz S., Hennino T., Hlavac S., Höhne C., Holzmann R., Ierusalimov A., Ivashkin A., Jurkovic M., Kämpfer B., Karavicheva T., Kardan K., Koenig I., Koenig W., Kolb B. W., Korcyl G., Kornakov G., Kotte R., Krása A., Krebs E., Kuc H., Kugler A., Kunz T., Kurepin A., Kurilkin A., Kurilkin P., Ladygin V., Lalik R., Lapidus K., Lebedev A., Lopes L., Lorenz M., Mahmoud T., Maier L., Mangiarotti A., Markert J., Metag V., Michel J., Müntz C., Münzer R., Naumann L., Palka M., Parpottas Y., Pechenov V., Pechenova O., Petousis V., Pietraszko J., Przygoda W., Rehnisch L., Reshetin A., Rost A., Rustamov A., Sadovsky A., Salabura P., Scheib T., Schmidt-Sommerfeld K., Schuldes H., Sellheim P., Siebenson J., Silva L., Sobolev Yu.G., Spataro S., Ströbele H., Stroth J., Strzempek P., Sturm C., Svoboda O., Tarantola A., Teilab K., Tlusty P., Traxler M., Tsertos H., Vasiliev T., Wagner V., Wendisch C., Wirth J., Wüstenfeld J., Zanevsky Y., and Zumbruch P.
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Physics ,QC1-999 - Abstract
Recent results obtained with the HADES experimental set-up at GSI are presented with a focus on dielectron production and strangeness in pp and quasi-free np reactions. Perspectives related to the very recent experiment using the pion beam at GSI are also discussed.
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- 2014
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28. Experimental and simulated d p breakup reaction data at 300, 400 and 500 MeV
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Janek M., Gurchin Yu.V., Isupov A.Yu., Karachuk J-T., Khrenov A.N., Kurilkin A.K., Kurilkin P.K., Ladygin V.P., Livanov A.N., Martinska G., Piyadin S.M., Reznikov S.G., Tarjanyiova G., and Terekhin A.A.
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Physics ,QC1-999 - Abstract
d p breakup reaction occupies large phase space. Two and three nucleon forces and relativistic effects can be investigated under various detector configuration. The results of simulation of d p breakup reaction in energy region from 300 to 500 MeV are presented. Preliminary results obtained at 300, 400 and 500 MeV of deuteron energy at some detector configurations at Nuclotron as well as future plans in investigation of relativistic effects are discussed.
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- 2014
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29. Analyzing Power of Quasi-Elastic Proton-Proton Scattering at the Beam Energy of 550 MeV/Nucleon
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Volkov, I. S., Ladygin, V. P., Skhomenko, Ya. T., Gurchin, Yu. V., Isupov, A. Yu., Janek, M., Karachuk, J.-T., Khrenov, A. N., Kurilkin, P. K., Livanov, A. N., Piyadin, S. M., Reznikov, S. G., Terekhin, A. A., Tishevsky, A. V., Averyanov, A. V., Chernykh, E. V., Enache, D., Krivenkov, D. O., and Vnukov, I. E.
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- 2023
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30. Short Range Correlations Investigated by DSS Collaboration in Reactions Involving Deuterons
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Janek, M., Ladygin, V. P., Mezhenska, O., Averyanov, A. V., Chernykh, E. V., Enache, D. D., Gurchin, Yu. V., Isupov, A. Yu., Karachuk, J.-T., Khrenov, A. N., Krivenkov, D. O., Kurilkin, P. K., Ladygina, N. B., Livanov, A. N., Piyadin, S. M., Reznikov, S. G., Skhomenko, Y. T., Terekhin, A. A., Tishevsky, A. V., Uesaka, T., Urban, J., and Volkov, I. S.
- Published
- 2023
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- View/download PDF
31. Investigation of the dp-Breakup Reaction at Intermediate Energies at Nuclotron
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Mezhenska, O., Janek, M., Ladygin, V., Piyadin, S., Gurchin, Yu., Isupov, A., Karachuk, Ju.-T., Khrenov, A., Kurilkin, P., Livanov, A., Reznikov, S., Terekhin, A., and Urban, J.
- Published
- 2023
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32. New data on the differential cross-section on dp-elastic scattering at 880 MeV obtained at Nuclotron
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Rapatskiy V.L., Piyadin S.M., Ladygina N.B., Livanov A.N., Ladygin V.P., Kurilkin P.K., Kurilkin A.K., Kracnov V.A., Khrenov A.N., Karachuk J.-T., Janek M., Isupov A.Yu, Gurchin Yu.V., Reznikov S.G., Terekhin A.A., and Vasiliev T.A.
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Physics ,QC1-999 - Abstract
The results on the cross-section of dp-elastic scattering reaction obtained at 880 MeV at 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
- 2012
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33. The dp-elastic cross section measurement at the deuteron kinetic energy of 2.5 GeV
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Rustamov A., Reshetin A., Rehnisch L., Ramstein B., Przygoda W., Pietraszko J., Pechenova O., Parpottas Y., Pechenov V., Palka M., Naumann L., Münzer R., Müntz C., Michel J., Metag V., Markert J., Mangiarotti A., Maier L., Lorenz M., Lopes L., Lebedev A., Lapidus K., Lang S., Lalik R., Ladygin V., Kurilkin A., Kurepin A., Kuc H., Kugler A., Krizek F., Krebs E., Krása A., Kotte R., Kornakov G., Korcyl G., Kolb B. W., Koenig W., Koenig I., Kämpfer B., Karavicheva T., Jurkovic M., Ivashkin A., Ierusalimov A., Höhne C., Huck P., Holzmann R., Hennino T., Harabasz S., Gumberidze M., Guber F., González-Díaz D., Golubeva M., Gill K., Galatyuk T., Garzón J. A., Fröhlich I., Fonte P., Friese J., Fateev O., Fabbietti L., Epple E., Dybczak A., Dritsa C., Chernenko S., Cabanelas P., Böhmer M., Blume C., Blanco A., Berger-Chen J.C., Belyaev A., Belver D., Behnke C., Agakishiev G., Kurilkin P., Sadovsky A., Salabura P., Scheib T., Schuldes H., Siebenson J., Sobolev Yu.G., Spataro S., Ströbele H., Stroth J., Strzempek P., Sturm C., Svoboda O., Tarantola A., Teilab K., Tlusty P., Traxler M., Tsertos H., Vasiliev T., Wagner V., Weber M., Wendisch C., Wüstenfeld J., Yurevich S., and Zanevsky Y.
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Physics ,QC1-999 - Abstract
New results on the differential cross section in deuteron-proton elastic scattering are obtained at the deuteron kinetic energy of 2.5 GeV with the HADES spectrometer. The angular range of 69° – 125° in the center of mass system is covered. The obtained results are compared with the relativistic multiple scattering model calculation using the CD-Bonn deuteron wave function. The data at fixed scattering angles in the c.m. are in qualitative agreement with the constituent counting rules prediction.
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- 2012
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34. Resonance production in p+p, p+A and A+A collisions measured with HADES
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Reshetin A., Rehnisch L., Ramstein B., Przygoda W., Pietraszko J., Pechenova O., Pechenov V., Parpottas Y., Palka M., Naumann L., Münzer R., Müntz C., Michel J., Metag V., Markert J., Mangiarotti A., Maier L., Lopes L., Lebedev A., Lapidus K., Lang S., Lalik R., Ladygin V., Kurilkin P., Kurilkin A., Kurepin A., Kuc H., Kugler A., Krizek F., Krebs E., Krása A., Kotte R., Kornakov G., Korcyl G., Kolb B. W., Koenig W., Koenig I., Karavicheva T., Kämpfer B., Jurkovic M., Ivashkin A., Ierusalimov A., Höhne C., Huck P., Holzmann R., Hennino T., Harabasz S., Gumberidze M., Guber F., Gonzáalez-Díaz D., Golubeva M., Gill K., Garzón J. A., Galatyuk T., Fröhlich I., Friese J., Fabbietti L., Fonte P., Epple E., Dybczak A., Dritsa C., Cabanelas P., Böhmer M., Blume C., Blanco A., Berger-Chen J.C., Belyaev A., Belver D., Behnke C., Agakishiev G., Lorenz M., Rustamov A., Sadovsky A., Salabura P., Scheib T., Schuldes H., Siebenson J., Sobolev Yu.G., Spataroe S., Ströbele H., Stroth J., Strzempek P., Sturm C., Svoboda O., Tarantola A., Teilab K., Tlusty P., Traxler M., Tsertos H., Vasiliev T., Wagner V., Weber M., Wendisch C., Wüstenfeld J., Yurevich S., and Zanevsky Y.
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Physics ,QC1-999 - Abstract
The knowledge of baryonic resonance properties and production cross sections plays an important role for the extraction and understanding of medium modifications of mesons in hot and/or dense nuclear matter. We present and discuss systematics on dielectron and strangeness production obtained with HADES on p+p, p+A and A+A collisions in the few GeV energy regime with respect to these resonances.
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- 2012
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35. Identical pion intensity interferometry at sqrt(s_{NN})=2.4 GeV
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Adamczewski-Musch, J., Arnold, O., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Biernat, J., Blanco, A., Blume, C., Böhmer, M., Bordalo, P., Chernenko, S., Chlad, L., Deveaux, C., Dreyer, J., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Galatyuk, T., Garzón, J. A., Gernhäuser, R., Golubeva, M., Greifenhagen, R., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., Höhne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kämpfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kolb, B. W., Korcyl, G., Kornakov, G., Kornas, F., Kotte, R., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Mangiarotti, A., Markert, J., Matulewicz, T., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Morozov, S., Müntz, C., Münzer, R., Naumann, L., Nowakowski, K., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Piasecki, K., Pietraszko, J., Przygoda, W., Ramos, S., Ramstein, B., Reshetin, A., Rodriguez-Ramos, P., Rosier, P., Rost, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Selyuzhenkov, I., Siebenson, J., Silva, L., Sobolev, Yu. G., Spataro, S., Spies, S., Ströbele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Wójcik, D., Zanevsky, Y., and Zumbruch, P.
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Nuclear Experiment - Abstract
High-statistics $\pi^-\pi^-$ and $\pi^+\pi^+$ femtoscopy data are presented for Au+Au collisions at $\sqrt{s_\mathrm{NN}}=2.4$ GeV, 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 number of participants, irrespective of transverse momentum. 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., Comment: 20 pages, 19 figures, 7 tables. arXiv admin note: text overlap with arXiv:1811.06213
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- 2019
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36. Short-range correlations studies in collisions of polarized nuclei at Nuclotron-M
- Author
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Sakai H., Sasamoto Y., Sakaguchi S., Rukoyatkin P.A., Reznikov S.G., Rangelov S., Popovichi J., Plekhanov E.B., Piyadin S.M., Nedev S., Martinska G., Malakhov A.I., Livanov A.N., Maeda Y., Lipchinski D., Ladygina N.B., Krasnov V.A., Kurilkin P.K., Kurilkin A.K., Kurepin A.B., Kizka V.A., Kiselev A.S., Khrenov A.N., Kawabata T., Karachuk J.-T., Janek M., Itoh K., Isupov A.Yu., Gurchin Yu.V., Azhgirey L.S., Uesaka T., Ladygin V.P., Sekiguchi K., Shikhalev M.A., Suda K., Terekhin A.A., Urban J., Vasiliev T.A., Vnukov I.E., and Witala H.
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Physics ,QC1-999 - Abstract
The status and prospects of 2-nucleon and 3-nucleon short range correlations (SRCs) studies at Nuclotron-M (JINR) are presented. This program is focused on the investigations of the spin part of SRCs with polarized deuteron beam from new high intensity polarized deuterons ion source which is under development at JINR. The wide experimental program on the systematic studies of the polarization effects in dp- elastic scattering, dp- nonmesonic breakup, dd → 3Hen(3Hp) and d3He → p4He reactions sensitive to SRCs using both internal and extracted beam at Nuclotron-M is presented.
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- 2010
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37. Sub-threshold production of K^{0}_{s} mesons and {\Lambda} hyperons in Au(1.23A GeV)+Au
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HADES collaboration, Adamczewski-Musch, J., Arnold, O., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Biernat, J., Blanco, A., Blume, C., Böhmer, M., Bordalo, P., Chernenko, S., Chlad, L., Deveaux, C., Dreyer, J., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Galatyuk, T., Garzon, J. A., Gernhäuser, R., Golubeva, M., Greifenhagen, R., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., Höhne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kämpfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kolb, B. W., Korcyl, G., Kornakov, G., Kotte, R., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Mangiarotti, A., Markert, J., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Morozov, S., Müntz, C., Münzer, R., Naumann, L., Nowakowski, K. N., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Pietraszko, J., Przygoda, W., Ramos, S., Ramstein, B., Reshetin, A., Rodriguez-Ramos, P., Rosier, P., Rost, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Selyuzhenkov, I., Siebenson, J., Silva, L., Sobolev, Yu. G., Spataro, S., Ströbele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Zanevsky, Y., Zumbruch, P., and Leifels, Y.
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Nuclear Experiment - Abstract
We present first data on sub-threshold production of K0 s mesons and {\Lambda} hyperons in Au+Au collisions at $\sqrt{s_{NN}}$ = 2.4 GeV. We observe an universal
scaling of hadrons containing strangeness, independent of their corresponding production thresholds. Comparing the yields, their scaling, and the shapes of the rapidity and the pt spectra to state-of-the-art transport model (UrQMD, HSD, IQMD) predictions, we find that none of the latter can simultaneously describe all observables with reasonable \c{hi}2 values., Comment: 8 pages, 10 figures - Published
- 2018
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38. Strong absorption of hadrons with hidden and open strangeness in nuclear matter
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Adamczewski-Musch, J., Arnold, O., Atomssa, E. T., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Biernat, J., Blanco, A., Blume, C., Böhmer, M., Chernenko, S., Chlad, L., Chudoba, P., Ciepal, I., Deveaux, C., Dittert, D., Dreyer, J., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Galatyuk, T., Garzon, J. A., Gernhäuser, R., Golubeva, M., Greifenhagen, R., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Höhne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kämpfer, B., Kardan, B., Koenig, I., Koenig, W., Kolb, B. W., Korcyl, G., Kornakov, G., Kornas, F., Kotte, R., Kubos, J., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Linev, S., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Malige, A., Markert, J., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Mikhaylov, V., Morozov, S., Müntz, C., Münzer, R., Naumann, L., Nowakowsk, K., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Pietraszko, J., Prozorov, A. P., Przygoda, W., Ramstein, B., Reshetin, A., Rodriguez-Ramos, P., Rost, A., Sadovsky, A., Salabura, P., Scheib, T., Schmidt-Sommerfeld, K., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Siebenson, J., Silva, L., Smyrski, J., Spataro, S., Spies, S., Ströbele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Ungethüm, C., Doce, O. Vazquez, Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Zanevsky, Y., and Zumbruch, P.
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Nuclear Experiment - 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
- 2018
- Full Text
- View/download PDF
39. Identical pion intensity interferometry in central Au+Au collisions at 1.23A GeV
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Adamczewski-Musch, J., Arnold, O., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Biernat, J., Blanco, A., Blume, C., Böhmer, M., Bordalo, P., Chernenko, S., Chlad, L., Deveaux, C., Dreyer, J., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Galatyuk, T., Garzon, J. A., Gernhäuser, R., Golubeva, M., Greifenhagen, R., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., Höhne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kämpfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kolb, B. W., Korcyl, G., Kornakov, G., Kotte, R., Kühn, W., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Mangiarotti, A., Markert, J., Matulewicz, T., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Morozov, S., Müntz, C., Münzer, R., Naumann, L., Nowakowski, K. N., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Piasecki, K., Pietraszko, J., Przygoda, W., Ramos, S., Ramstein, B., Reshetin, A., Rodriguez-Ramos, P., Rosier, P., Rost, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Siebenson, J., Silva, L., Sobolev, Yu. G., Spataro, S., Ströbele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Wojcik, D., Zanevsky, Y., and Zumbruch, P.
- Subjects
Nuclear Experiment - 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
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- 2018
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- View/download PDF
40. Centrality determination of Au+Au collisions at 1.23A GeV with HADES
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HADES collaboration, Adamczewski-Musch, J., Arnold, O., Behnke, C., Belounnas, A., Belyaev, A., Chernenko, S., Chlad, L., Deveaux, C., Dreyer, J., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Fonte, P., Franco, C., Friese, J., Froehlich, I., Galatyuk, T., Garzon, J. A., Gernhaeuser, R., Golubeva, M., Greifenhagen, R., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., Hoehne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kaempfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kolb, B. W., Korcyl, G., Kornakov, G., Kotte, R., Kuehn, W., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Mangiarotti, A., Markert, J., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Morozov, S., Muentz, C., Muenzer, R., Naumann, L., Nowakowski, K. N., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Pietraszko, J., Przygoda, W., Ramos, S., Ramstein, B., Reshetin, A., Rodriguez-Ramos, P., Rosier, P., Rost, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Siebenson, J., Silva, L., Sobolev, Yu. G., Spataro, S., Stroebele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Zanevsky, Y., and Zumbruch, P.
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Nuclear Experiment - Abstract
The centrality determination for Au+Au collisions at 1.23A GeV, as measured with HADES at the GSI-SIS18, is described. In order to extract collision geometry related quantities, such as the average impact parameter or number of participating nucleons, a Glauber Monte Carlo approach is employed. For the application of this model to collisions at this relatively low centre-of-mass energy of $\sqrt{s_{\mathrm{NN}}} = 2.42$ GeV special investigations were performed. As a result a well defined procedure to determine centrality classes for ongoing analyses of heavy-ion data is established.
- Published
- 2017
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41. Modification of antidote therapy for poisoning due to massive admission of paracetamol
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A. Yu. Simonova, M. M. Potskhveriya, M. V. Belova, K. K. Ilyashenko, N. E. Stolbova, and Yu. A. Kurilkin
- Subjects
paracetamol poisoning ,treatment ,acetylcysteine ,antidote therapy ,Medicine - Abstract
Background. Paracetamol poisoning is common all over the world, including in Russia. In 20–25% of cases, a massive dose of the drug is observed: more than 30–40 g of paracetamol at a time.The aim of the study was to demonstrate the efficacy of using an increased doses of acetylcysteine in the treatment of a massive paracetamol admission.Results. Patient G., 22 years old, took 70 tablets (35 g) of paracetamol for suicide 3 hours before admission to the hospital. The blood level of paracetamol 4 hours after taking it was 694.94 µg/mL. Upon admission to the hospital, acetylcysteine administering was started according to a 12-hour scheme. Subsequently, the administration of acetylcysteine was continued according to a 20-hour regimen with an increased dosage at the 2nd stage. Laboratory parameters, including aspartate aminotransferase and alanine aminotransferase, remained within the reference values during hospital stay. Conclusion. The case report we have presented shows the efficacy and expediency of using an increased doses of acetylcysteine in case of massive admission of paracetamol, which contributes to the prevention of the development of severe complications and a favorable course and outcome of the disease.
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- 2022
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42. Analyzing Power in Quasi-Elastic Scattering at Energies of 200 to 650 MeV/Nucleon
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Volkov, I. S., Ladygin, V. P., Skhomenko, Ya. T., Gurchin, Yu. V., Isupov, A. Yu., Janek, M., Karachuk, J. T., Khrenov, A. N., Kurilkin, P. K., Livanov, A. N., Piyadin, S. M., Reznikov, S. G., Terekhin, A. A., Tishevsky, A. V., Averyanov, A. V., Chernykh, E. V., Enache, D., Krivenkov, D. O., and Vnukov, I. E.
- Published
- 2022
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43. $\Sigma^0$ production in proton nucleus collisions near threshold
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Adamczewski-Musch, J., Agakishiev, G., Arnold, O., Atomssa, E. T., Behnke, C., Berger-Chen, J. C., Biernat, J., Blanco, A., Blume, C., Böhmer, M., Chernenko, P. Bordalo S., Deveaux, C., Dybczak, A., Epple, E., Fabbietti, L., Fonte, O. Fateev P., Franco, C., Friese, J., Fröhlich, I., Galatyuk, T., Garzón, J. A., Gernhäuser, R., Gill, K., Golubeva, M., Guber, F., Gumberidze, M., Harabasz, S., Hlavac, T. Hennino S., Höhne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kämpfer, M. Jurkovic B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kolb, B. W., Korcyl, G., Kornakov, G., Kotte, R., Krása, A., Krebs, E., Kuc, H., Kunz, A. Kugler T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Maurus, S., Mangiarotti, A., Markert, J., Metag, V., Michel, J., Müntz, C., Naumann, R. Münzer L., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Petousis, V., Pietraszko, J., Przygoda, W., Ramos, S., Ramstein, B., Rehnisch, L., Reshetin, A., Rost, A., Rustamov, A., Sadovsky, A., Salabura, P., Scheib, T., Schmidt-Sommerfeld, K., Schuldes, H., Sellheim, P., Siebenson, J., Silva, L., Sobolev, Yu. G., Spataro, S., Ströbele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Tarantola, A., Teilab, K., Tlusty, P., Traxler, M., Tsertos, H., Vasiliev, T., Wagner, V., Wendisch, C., Wirth, J., Wüstenfeld, J., Zanevsky, Y., and Zumbruch, P.
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Nuclear Experiment - Abstract
The production of $\Sigma^{0}$ baryons in the nuclear reaction p (3.5 GeV) + Nb (corresponding to $\sqrt{s_{NN}}=3.18$ GeV) is studied with the detector set-up HADES at GSI, Darmstadt. $\Sigma^{0}$s were identified via the decay $\Sigma^{0} \rightarrow \Lambda \gamma$ with subsequent decays $\Lambda \rightarrow p \pi^{-}$ in coincidence with a $e^{+}e^{-}$ pair from either external ($\gamma \rightarrow e^{+} e^{-}$) or internal (Dalitz decay $\gamma^{*}\rightarrow e^{+} e^{-}$) gamma conversions. The differential $\Sigma^0$ cross section integrated over the detector acceptance, i.e. the rapidity interval $0.5 < y < 1.1$, has been extracted as $\Delta\sigma_{\Sigma^{0}} = 2.3 \pm (0.2)^{stat} \pm \left(^{+0.6}_{-0.6}\right)^{sys} \pm (0.2)^{norm}$ mb, yielding the inclusive production cross section in full phase space $\sigma^{total}_{\Sigma^{0}} = 5.8 \pm (0.5)^{stat} \pm \left(^{+1.4}_{-1.4}\right)^{sys} \pm (0.6)^{norm} \pm (1.7)^{extrapol}$ mb by averaging over different extrapolation methods. The $\Lambda_{all}$/$\Sigma^{0}$ ratio within the HADES acceptance is equal to 2.3 $\pm$ $(0.2)^{stat}$ $\pm$ $(^{+0.6}_{-0.6})^{sys}$. The obtained rapidity and momentum distributions are compared to transport model calculations. The $\Sigma^{0}$ yield agrees with the statistical model of particle production in nuclear reactions., Comment: 7 pages, 5 figures
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- 2017
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44. Analysis of the exclusive final state npe$^+$e$^-$ in quasi-free np reaction
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Adamczewski-Musch, J., Arnold, O., Atomssa, E. T., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Biernat, J., Blanco, A., Blume, C., Böhmer, M., Bordalo, P., Chernenko, S., Chlad, L., Deveaux, C., Dreyer, J., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Finocchiaro, P., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Galatyuk, T., Garzón, J. A., Gernhäuser, R., Golubeva, M., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., Höhne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kämpfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kolb, B. W., Korcyl, G., Kornakov, G., Kotte, R., Kühn, W., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Liu, T., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Mangiarotti, A., Markert, J., Maurus, S., Metag, V., Michel, J., Morinière, E., Mihaylov, D. M., Morozov, S., Müntz, C., Münzer, R., Naumann, L., Nowakowski, K. N., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Pietraszko, J., Przygoda, W., Ramos, S., Ramstein, B., Reshetin, A., Rodriguez-Ramos, P., Rosier, P., Rost, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Siebenson, J., Silva, L., Sobolev, Yu. G., Spataro, S., Ströbele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Zanevsky, Y., Zumbruch, P., and Sarantsev, A. V.
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Nuclear Experiment ,J.2 - Abstract
We report on the investigation of dielectron production in tagged quasi-free neutron-proton collisions by using a deuteron beam of kinetic energy 1.25 GeV/u inpinging on a liquid hydrogen target. Our measurements with HADES confirm a significant excess of $e^+e^-$ pairs above the $\pi^{0}$ mass in the exclusive channel $dp \to npe^{+}e^{-}(p_{spect})$ as compared to the exclusive channel $ppe^{+}e^{-}$ measured in proton-proton collisions at the same energy. That excess points to different bremsstrahlung production mechanisms. Two models were evaluated for the role of the charged pion exchange between nucleons and double-$\Delta$ excitation combined with intermediate $\rho$-meson production. Differential cross sections as a function of the $e^+e^-$ invariant mass and of the angles of the virtual photon, proton and electrons provide valuable constraints and encourage further investigations on both experimental and theoretical side., Comment: 12 pages, 7 figures
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- 2017
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45. Deep sub-threshold {\phi} production and implications for the K+/K- freeze-out in Au+Au collisions
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Adamczewski-Musch, J., Arnold, O., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Biernat, J., Blanco, A., Blume, C., Böhmer, M., Bordalo, P., Chernenko, S., Chlad, L., Deveaux, C., Dreyer, J., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Galatyuk, T., Garzon, J. A., Gernhäuser, R., Golubeva, M., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., Höhne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kämpfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kolb, B. W., Korcy, G., Kornakov, G., Kotte, R., Kühn, W., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Mangiarotti, A., Markert, J., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Morozov, S., Müntz, C., Münzer, R., Naumann, L., Nowakowski, K. N., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Pietraszko, J., Przygoda, W., Ramos, S., Ramstein, B., Reshetin, A., Rodriguez-Ramos, P., Rosier, P., Rost, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Siebenson, J., Silva, L., Sobolev, Yu. G., Spataro, S., Ströbele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Zanevsky, Y., and Zumbruch, P.
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Nuclear Experiment ,High Energy Physics - Experiment - Abstract
We present data on charged kaons (K+-) and {\phi} mesons in Au(1.23A GeV)+Au collisions. It is the first simultaneous measurement of K and {\phi} mesons in central heavy-ion collisions below a kinetic beam energy of 10A GeV. The {\phi}/K- multiplicity ratio is found to be surprisingly high with a value of 0.52 +- 0.16 and shows no dependence on the centrality of the collision. Consequently, the different slopes of the K+ and K- transverse-mass spectra can be explained solely by feed- down, which substantially softens the spectra of K- mesons. Hence, in contrast to the commonly adapted argumentation in literature, the different slopes do not necessarily imply diverging freeze- out temperatures of K+ and K- mesons caused by different couplings to baryons., Comment: Corrected and updated version, 28 November 2017
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- 2017
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46. $\Delta$(1232) Dalitz decay in proton-proton collisions at T=1.25 GeV measured with HADES
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Adamczewski-Musch, J., Arnold, O., Atomssa, E. T., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Biernat, J., Blanco, A., Blume, C., Böhmer, M., Bordalo, P., Chernenko, S., Chlad, L., Deveaux, C., Dreyer, J., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Finocchiaro, P., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Galatyuk, T., Garzón, J. A., Gernhäuser, R., Golubeva, M., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., Höhne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kämpfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kolb, B. W., Korcyl, G., Kornakov, G., Kotte, R., Kühn, W., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Liu, T., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Mangiarotti, A., Markert, J., Maurus, S., Metag, V., Michel, J., Morinière, E., Mihaylov, D. M., Morozov, S., Müntz, C., Münzer, R., Naumann, L., Nowakowski, K. N., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Pietraszko, J., Przygoda, W., Ramos, S., Ramstein, B., Reshetin, A., Rodriguez-Ramos, P., Rosier, P., Rost, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Siebenson, J., Silva, L., Sobolev, Yu. G., Spataro, S., Ströbele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Zanevsky, Y., Zumbruch, P., and Sarantsev, A. V.
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Nuclear Experiment ,J.2 - Abstract
We report on the investigation of $\Delta$(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 $ppe^{+}e^{-}\gamma$ have been studied and compared with the partial wave analysis of the hadronic $pp\pi^{0}$ channel. They allow to access both $\Delta^+ \to p\pi^0(e^+e^-\gamma)$ and $\Delta^+ \to pe^+e^-$ Dalitz decay channels. The perfect reconstruction of the well known $\pi^0$ Dalitz decay serves as a proof of the consistency of the analysis. The $\Delta$ Dalitz decay is identified for the first time and the sensitivity to N-$\Delta$ transition form factors is tested. The $\Delta$(1232) Dalitz decay branching ratio is also determined for the first time; our result is (4.19 $\pm$ 0.62 syst. $\pm$ 0.34 stat.) $\times $ 10$^{-5}$, albeit with some model dependence., Comment: 13 pages, 7 figures
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- 2017
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47. Experience in the Development and Production of Thermal-Neutron Detectors at the IBR-2 DSC (Review)
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Belushkin, A. V., Bogdzel’, A. A., Bodnarchuk, V. I., Daulbaev, O., Zhuravlev, V. V., Kurilkin, A. K., Kulikov, S. A., Litvinenko, E. I., Milkov, V. M., Petrova, M. O., Prikhod’ko, V. I., Podlesnyy, M. M., Churakov, A. V., and Shvetsov, V. V.
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- 2022
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48. Inclusive {\Lambda} production in proton-proton collisions at 3.5 GeV
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Adamczewski-Musch, J., Agakishiev, G., Arnold, O., Atomssa, E. T., Behnke, C., Berger-Chen, J. C., Biernat, J., Blanco, A., Blume, C., Böhmer, M., Bordalo, P., Chernenko, S., Deveaux, C., Dreyer, J., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Galatyuk, T., Garzón, J. A., Gill, K., Golubeva, M., Guber, F., Gumberidze, M., Harabasz, S., Hennino, T., Hlavac, S., Höhne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Jurkovic, M., Kämpfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kolb, B. W., Korcyl, G., Kornakov, G., Kotte, R., Krása, A., Krebs, E., Kuc, H., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Maurus, S., Mangiarotti, A., Markert, J., Metag, V., Michel, J., Morozov, S., Müntz, C., Münzer, R., Naumann, L., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Petousis, V., Pietraszko, J., Przygoda, W., Ramos, S., Ramstein, B., Rehnisch, L., Reshetin, A., Rost, A., Rustamov, A., Sadovsky, A., Salabura, P., Scheib, T., Schmidt-Sommerfeld, K., Schuldes, H., Sellheim, P., Siebenson, J., Silva, L., Sobolev, Yu. G., Spataroe, S., Ströbele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Tarantola, A., Teilab, K., Tlusty, P., Traxler, M., Tsertos, H., Vasiliev, T., Wagner, V., Wendisch, C., Wirth, J., Zanevsky, Y., and Zumbruch, P.
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Nuclear Experiment - Abstract
The inclusive production of {\Lambda} hyperons in proton-proton collisions at $\sqrt{s}$ = 3.18 GeV was measured with HADES at the GSI Helmholtzzentrum f\"ur Schwerionenforschung in Darmstadt. The experimental data are compared to a data-based model for individual exclusive {\Lambda} production channels in the same reaction. The contributions of intermediate resonances such as {\Sigma}(1385), {\Delta}++ or N* are considered in detail. In particular, the result of a partial wave analysis is accounted for the abundant pK$^+${\Lambda} final state. Model and data show a reasonable agreement at mid rapidities, while a difference is found for larger rapidities. A total {\Lambda} production cross section in p+p collisions at $\sqrt{s}$ = 3.18 GeV of {\sigma}(pp $\to$ {\Lambda} + X) = 207.3 $\pm$ 1.3 +6.0 -7.3 (stat.) $\pm$ 8.4 (syst.) +0.4 -0.5 (model) {\mu}b is found., Comment: 12 pages, 6 figures
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- 2016
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49. Challenges in QCD matter physics - The Compressed Baryonic Matter experiment at FAIR
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CBM Collaboration, Ablyazimov, T., Abuhoza, A., Adak, R. P., Adamczyk, M., Agarwal, K., Aggarwal, M. M., Ahammed, Z., Ahmad, F., Ahmad, N., Ahmad, S., Akindinov, A., Akishin, P., Akishina, E., Akishina, T., Akishina, V., Akram, A., Al-Turany, M., Alekseev, I., Alexandrov, E., Alexandrov, I., Amar-Youcef, S., Anđelić, M., Andreeva, O., Andrei, C., Andronic, A., Anisimov, Yu., Appelshäuser, H., Argintaru, D., Atkin, E., Avdeev, S., Averbeck, R., Azmi, M. D., Baban, V., Bach, M., Badura, E., Bähr, S., Balog, T., Balzer, M., Bao, E., Baranova, N., Barczyk, T., Bartoş, D., Bashir, S., Baszczyk, M., Batenkov, O., Baublis, V., Baznat, M., Becker, J., Becker, K. -H., Belogurov, S., Belyakov, D., Bendarouach, J., Berceanu, I., Bercuci, A., Berdnikov, A., Berdnikov, Y., Berendes, R., Berezin, G., Bergmann, C., Bertini, D., Bertini, O., Beşliu, C., Bezshyyko, O., Bhaduri, P. P., Bhasin, A., Bhati, A. K., Bhattacharjee, B., Bhattacharyya, A., Bhattacharyya, T. K., Biswas, S., Blank, T., Blau, D., Blinov, V., Blume, C., Bocharov, Yu., Book, J., Breitner, T., Brüning, U., Brzychczyk, J., Bubak, A., Büsching, H., Bus, T., Butuzov, V., Bychkov, A., Byszuk, A., Cai, Xu, Cálin, M., Cao, Ping, Caragheorgheopol, G., Carević, I., Cătănescu, V., Chakrabarti, A., Chattopadhyay, S., Chaus, A., Chen, Hongfang, Chen, LuYao, Cheng, Jianping, Chepurnov, V., Cherif, H., Chernogorov, A., Ciobanu, M. I., Claus, G., Constantin, F., Csanád, M., D'Ascenzo, N., Das, Supriya, Das, Susovan, de Cuveland, J., Debnath, B., Dementiev, D., Deng, Wendi, Deng, Zhi, Deppe, H., Deppner, I., Derenovskaya, O., Deveaux, C. A., Deveaux, M., Dey, K., Dey, M., Dillenseger, P., Dobyrn, V., Doering, D., Dong, Sheng, Dorokhov, A., Dreschmann, M., Drozd, A., Dubey, A. K., Dubnichka, S., Dubnichkova, Z., Dürr, M., Dutka, L., Dželalija, M., Elsha, V. V., Emschermann, D., Engel, H., Eremin, V., Eşanu, T., Eschke, J., Eschweiler, D., Fan, Huanhuan, Fan, Xingming, Farooq, M., Fateev, O., Feng, Shengqin, Figuli, S. P. D., Filozova, I., Finogeev, D., Fischer, P., Flemming, H., Förtsch, J., Frankenfeld, U., Friese, V., Friske, E., Fröhlich, I., Frühauf, J., Gajda, J., Galatyuk, T., Gangopadhyay, G., Chávez, C. García, Gebelein, J., Ghosh, P., Ghosh, S. K., Gläßel, S., Goffe, M., Golinka-Bezshyyko, L., Golovatyuk, V., Golovnya, S., Golovtsov, V., Golubeva, M., Golubkov, D., Ramírez, A. Gómez, Gorbunov, S., Gorokhov, S., Gottschalk, D., Gryboś, P., Grzeszczuk, A., Guber, F., Gudima, K., Gumiński, M., Gupta, A., Gusakov, Yu., Han, Dong, Hartmann, H., He, Shue, Hehner, J., Heine, N., Herghelegiu, A., Herrmann, N., Heß, B., Heuser, J. M., Himmi, A., Höhne, C., Holzmann, R., Hu, Dongdong, Huang, Guangming, Huang, Xinjie, Hutter, D., Ierusalimov, A., Ilgenfritz, E. -M., Irfan, M., Ivanischev, D., Ivanov, M., Ivanov, P., Ivanov, Valery, Ivanov, Victor, Ivanov, Vladimir, Ivashkin, A., Jaaskelainen, K., Jahan, H., Jain, V., Jakovlev, V., Janson, T., Jiang, Di, Jipa, A., Kadenko, I., Kähler, P., Kämpfer, B., Kalinin, V., Kallunkathariyil, J., Kampert, K. -H., Kaptur, E., Karabowicz, R., Karavichev, O., Karavicheva, T., Karmanov, D., Karnaukhov, V., Karpechev, E., Kasiński, K., Kasprowicz, G., Kaur, M., Kazantsev, A., Kebschull, U., Kekelidze, G., Khan, M. M., Khan, S. A., Khanzadeev, A., Khasanov, F., Khvorostukhin, A., Kirakosyan, V., Kirejczyk, M., Kiryakov, A., Kiš, M., Kisel, I., Kisel, P., Kiselev, S., Kiss, T., Klaus, P., Kłeczek, R., Klein-Bösing, Ch., Kleipa, V., Klochkov, V., Kmon, P., Koch, K., Kochenda, L., Koczoń, P., Koenig, W., Kohn, M., Kolb, B. W., Kolosova, A., Komkov, B., Korolev, M., Korolko, I., Kotte, R., Kovalchuk, A., Kowalski, S., Koziel, M., Kozlov, G., Kozlov, V., Kramarenko, V., Kravtsov, P., Krebs, E., Kreidl, C., Kres, I., Kresan, D., Kretschmar, G., Krieger, M., Kryanev, A. V., Kryshen, E., Kuc, M., Kucewicz, W., Kucher, V., Kudin, L., Kugler, A., Kumar, Ajit, Kumar, Ashwini, Kumar, L., Kunkel, J., Kurepin, A., Kurepin, N., Kurilkin, A., Kurilkin, P., Kushpil, V., Kuznetsov, S., Kyva, V., Ladygin, V., Lara, C., Larionov, P., García, A. Laso, Lavrik, E., Lazanu, I., Lebedev, A., Lebedev, S., Lebedeva, E., Lehnert, J., Lehrbach, J., Leifels, Y., Lemke, F., Li, Cheng, Li, Qiyan, Li, Xin, Li, Yuanjing, Lindenstruth, V., Linnik, B., Liu, Feng, Lobanov, I., Lobanova, E., Löchner, S., Loizeau, P. -A., Lone, S. A., Martínez, J. A. Lucio, Luo, Xiaofeng, Lymanets, A., Lyu, Pengfei, Maevskaya, A., Mahajan, S., Mahapatra, D. P., Mahmoud, T., Maj, P., Majka, Z., Malakhov, A., Malankin, E., Malkevich, D., Malyatina, O., Malygina, H., Mandal, M. M., Mandal, S., Manko, V., Manz, S., Garcia, A. M. Marin, Markert, J., Masciocchi, S., Matulewicz, T., Meder, L., Merkin, M., Mialkovski, V., Michel, J., Miftakhov, N., Mik, L., Mikhailov, K., Mikhaylov, V., Milanović, B., Militsija, V., Miskowiec, D., Momot, I., Morhardt, T., Morozov, S., Müller, W. F. J., Müntz, C., Mukherjee, S., Castillo, C. E. Muńoz, Murin, Yu., Najman, R., Nandi, C., Nandy, E., Naumann, L., Nayak, T., Nedosekin, A., Negi, V. S., Niebur, W., Nikulin, V., Normanov, D., Oancea, A., Oh, Kunsu, Onishchuk, Yu., Ososkov, G., Otfinowski, P., Ovcharenko, E., Pal, S., Panasenko, I., Panda, N. R., Parzhitskiy, S., Patel, V., Pauly, C., Penschuck, M., Peshekhonov, D., Peshekhonov, V., Petráček, V., Petri, M., Petriş, M., Petrovici, A., Petrovici, M., Petrovskiy, A., Petukhov, O., Pfeifer, D., Piasecki, K., Pieper, J., Pietraszko, J., Płaneta, R., Plotnikov, V., Plujko, V., Pluta, J., Pop, A., Pospisil, V., Poźniak, K., Prakash, A., Prasad, S. K., Prokudin, M., Pshenichnov, I., Pugach, M., Pugatch, V., Querchfeld, S., Rabtsun, S., Radulescu, L., Raha, S., Rami, F., Raniwala, R., Raniwala, S., Raportirenko, A., Rautenberg, J., Rauza, J., Ray, R., Razin, S., Reichelt, P., Reinecke, S., Reinefeld, A., Reshetin, A., Ristea, C., Ristea, O., Rodriguez, A. Rodriguez, Roether, F., Romaniuk, R., Rost, A., Rostchin, E., Rostovtseva, I., Roy, Amitava, Roy, Ankhi, Rożynek, J., Ryabov, Yu., Sadovsky, A., Sahoo, R., Sahu, P. K., Sahu, S. K., Saini, J., Samanta, S., Sambyal, S. S., Samsonov, V., Rosado, J. Sánchez, Sander, O., Sarangi, S., Satława, T., Sau, S., Saveliev, V., Schatral, S., Schiaua, C., Schintke, F., Schmidt, C. J., Schmidt, H. R., Schmidt, K., Scholten, J., Schweda, K., Seck, F., Seddiki, S., Selyuzhenkov, I., Semennikov, A., Senger, A., Senger, P., Shabanov, A., Shabunov, A., Shao, Ming, Sheremetiev, A. D., Shi, Shusu, Shumeiko, N., Shumikhin, V., Sibiryak, I., Sikora, B., Simakov, A., Simon, C., Simons, C., Singaraju, R. N., Singh, A. K., Singh, B. K., Singh, C. P., Singhal, V., Singla, M., Sitzmann, P., Siwek-Wilczyńska, K., Škoda, L., Skwira-Chalot, I., Som, I., Song, Guofeng, Song, Jihye, Sosin, Z., Soyk, D., Staszel, P., Strikhanov, M., Strohauer, S., Stroth, J., Sturm, C., Sultanov, R., Sun, Yongjie, Svirida, D., Svoboda, O., Szabó, A., Szczygieł, R., Talukdar, R., Tang, Zebo, Tanha, M., Tarasiuk, J., Tarassenkova, O., Târzilă, M. -G., Teklishyn, M., Tischler, T., Tlustý, P., Tölyhi, T., Toia, A., Topil'skaya, N., Träger, M., Tripathy, S., Tsakov, I., Tsyupa, Yu., Turowiecki, A., Tuturas, N. G., Uhlig, F., Usenko, E., Valin, I., Varga, D., Vassiliev, I., Vasylyev, O., Verbitskaya, E., Verhoeven, W., Veshikov, A., Visinka, R., Viyogi, Y. P., Volkov, S., Volochniuk, A., Vorobiev, A., Voronin, Aleksey, Voronin, Alexander, Vovchenko, V., Vznuzdaev, M., Wang, Dong, Wang, Xi-Wei, Wang, Yaping, Wang, Yi, Weber, M., Wendisch, C., Wessels, J. P., Wiebusch, M., Wiechula, J., Wielanek, D., Wieloch, A., Wilms, A., Winckler, N., Winter, M., Wiśniewski, K., Wolf, Gy., Won, Sanguk, Wu, Ke-Jun, Wüstenfeld, J., Xiang, Changzhou, Xu, Nu, Yang, Junfeng, Yang, Rongxing, Yin, Zhongbao, Yoo, In-Kwon, Yuldashev, B., Yushmanov, I., Zabołotny, W., Zaitsev, Yu., Zamiatin, N. I., Zanevsky, Yu., Zhalov, M., Zhang, Yifei, Zhang, Yu, Zhao, Lei, Zheng, Jiajun, Zheng, Sheng, Zhou, Daicui, Zhou, Jing, Zhu, Xianglei, Zinchenko, A., Zipper, W., Żoładź, M., Zrelov, P., Zryuev, V., Zumbruch, P., and Zyzak, M.
- Subjects
Nuclear Experiment - Abstract
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 2022, in the context of the worldwide efforts to explore high-density QCD matter., Comment: 15 pages, 11 figures. Published in European Physical Journal A
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- 2016
- Full Text
- View/download PDF
50. The $\bf{\Lambda p}$ interaction studied via femtoscopy in p + Nb reactions at $\mathbf{\sqrt{s_{NN}}=3.18} ~\mathrm{\bf{GeV}}$
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Adamczewski-Musch, J., Agakishiev, G., Arnold, O., Atomssa, E. T., Behnke, C., Berger-Chen, J. C., Biernat, J., Blanco, A., Blume, C., Böhmer, M., Bordalo, P., Chernenko, S., Deveaux, C., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Galatyuk, T., Garzon, J. A., Gill, K., Golubeva, M., Guber, F., Gumberidze, M., Harabasz, S., Hennino, T., Hlavac, S., Höhne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Jurkovic, M., Kämpfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kolb, B. W., Korcyl, G., Kornakov, G., Kotte, R., Krasa, A., Krebs, E., Kuc, H., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Maurus, S., Mangiarotti, A., Markert, J., Metag, V., Müntz, J. Michel C., Münzer, R., Naumann, L., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Petousis, V., Pietraszko, J., Przygoda, W., Ramstein, B., Rehnisch, L., Reshetin, A., Rost, A., Rustamov, A., Sadovsky, A., Salabura, P., Scheib, T., Schmidt-Sommerfeld, K., Schuldes, H., Sellheim, P., Siebenson, J., Silva, L., Sobolev, Yu. G., Spataro, S., Ströbele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Tarantola, A., Teilab, K., Tlusty, P., Traxler, M., Tsertos, H., Vasiliev, T., Wagner, V., Wendisch, C., Wirth, J., Wüstenfeld, J., Zanevsky, Y., and Zumbruch, P.
- Subjects
Nuclear Experiment - Abstract
We report on the first measurement of $p\Lambda$ and $pp$ correlations via the femtoscopy method in p+Nb reactions at $\mathrm{\sqrt{s_{NN}}=3.18} ~\mathrm{GeV}$, studied with the High Acceptance Di-Electron Spectrometer (HADES). By comparing the experimental correlation function to model calculations, a source size for $pp$ pairs of $r_{0,pp}=2.02 \pm 0.01(\mathrm{stat})^{+0.11}_{-0.12} (\mathrm{sys}) ~\mathrm{fm}$ and a slightly smaller value for $p\Lambda$ of $r_{0,\Lambda p}=1.62 \pm 0.02(\mathrm{stat})^{+0.19}_{-0.08}(\mathrm{sys}) ~\mathrm{fm}$ is extracted. Using the geometrical extent of the particle emitting region, determined experimentally with $pp$ correlations as reference together with a source function from a transport model, it is possible to study different sets of scattering parameters. The $p\Lambda$ correlation is proven sensitive to predicted scattering length values from chiral effective field theory. We demonstrate that the femtoscopy technique can be used as valid alternative to the analysis of scattering data to study the hyperon-nucleon interaction., Comment: 12 pages, 11 figures
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- 2016
- Full Text
- View/download PDF
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