Autor: Povar, T. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Measurement of global polarization of $\Lambda$ hyperons in few-GeV heavy-ion collisions
Autorzy:: Lorenz, M.
Pechenova, O.
Galatyuk, T.
Markert, J.
Parschau, M.
Kotte, R.
Prozorov, A.
Asal, C.
Krueger, W.
Belounnas, A.
Rodriguez-Ramos, P.
Kedych, V.
Idzik, M.
Linev, S.
Adamczewski-Musch, J.
Müntz, C.
Chlad, L.
Kämpfer, B.
Michel, J.
Piasecki, K.
Spies, S.
Saraiva, J.
Traxler, M.
Schwab, E.
Blanco, A.
Przygoda, Witold
Selyuzhenkov, I.
Förtsch, J.
Zbroszczyk, H.P.
Lalik, Rafał
Nowakowski, Krzysztof
Pietraszko, J.
Grunwald, M.
Naumann, L.
Blume, C.
Povar, T.
Kardan, B.
Pechenov, V.
Otto, J.-H.
Chudoba, P.
Ciepał, Izabela
Rustamov, A.
Malige, Akshay
Gniazdowski, T.
Fröhlich, I.
Hojeij, F.
Koenig, I.
Stroth, J.
Sumara, Konrad
Friese, J.
Cordts, M.
Stefaniak, M.S.
Salabura, Piotr
Lopes, L.
Holzmann, R.
Ritman, J.
Ströbele, H.
Kampert, K-H.
Pauly, C.
Höhne, C.
Lebedev, S.
Floersheimer, H.
Becker, M.
Pysz, K.
Fonte, P.
Kres, I.
Smyrski, Jerzy
Abou Yassine, R.
Schild, N.
Heinz, T.
Linz, F.
Wirth, J.
Skorpil, L.
Esmail, W.A.
Kugler, A.
Scozzi, F.
Kornakov, G.
Weber, A.A.
Rost, A.
Pfeifer, D.
Wasiluk, M.
Singh, Udai
Koenig, W.
Wagner, V.
Kolas, J.
Metag, V.
Wendisch, C.
Zieliński, Marcin
Nabroth, M.
Ramstein, B.
Seck, F.
Fabbietti, L.
Tlusty, P.
Huck, H.
Greifenhagen, R.
Harabasz, S.
Svoboda, O.
Zherebtsova, E.
Zumbruch, P.
Maurus, S.
Molenda, A.
Matulewicz, T.
Rathod, Narendra
Orliński, J.
Gumberidze, M.
Kohls, M.
Szala, M.
Dreyer, J.
Opis:: The global polarization of Λ hyperons along the total orbital angular momentum of a relativistic heavy-ion collision is presented based on the high statistics data samples collected in Au+Au collisions at $\sqrt{^{s}NN}$ = 2.4 GeV and Ag+Ag at 2.55 GeV with the High-Acceptance Di-Electron Spectrometer (HADES) at GSI, Darmstadt. This is the first measurement below the strangeness production threshold in nucleon-nucleon collisions. Results are reported as a function of the collision centrality as well as a function of the hyperon's transverse momentum (p_{T}) and rapidity (y_{CM}) for the range of centrality 0–40%. We observe a strong centrality dependence of the polarization with an increasing signal towards peripheral collisions. For mid-central (20 – 40%) collisions the polarization magnitudes are $\left< P_{\Lambda}\right>$ (%) = 6.8 $\pm$ 1.3 (stat.) $\pm$ 2.1 (syst.) for Au+Au and $\left< P_{\Lambda}\right>$ (%) = 6.2 $\pm$ 0.4 (stat.) $\pm$ 0.6 (syst.) for Ag+Ag, which are the largest values observed so far. This observation thus provides a continuation of the increasing trend previously observed by STAR and contrasts expectations from recent theoretical calculations predicting a maximum in the region of collision energies about 3 GeV. The observed polarization is of a similar magnitude as predicted by 3D-fluid-dynamics and the UrQMD plus thermal vorticity model and significantly above results from the AMPT model.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Artykuł

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Skocz do pozycji: 2.

Tytuł:: Inclusive $e^{+}e^{-}$ production in collisions of pions with protons and nuclei in the second resonance region of baryons
Autorzy:: Lorenz, M.
Schmidt-Sommerfeld, K.
Pechenova, O.
Galatyuk, T.
Silva, L.
Markert, J.
Parschau, M.
Kotte, R.
Zbroszczyk, H. P.
Nowakowski, Kamil
Prozorov, A.
Rodriguez-Ramos, P.
Krueger, W.
Kedych, V.
Böhmer, M.
Idzik, M.
Linev, S.
Adamczewski-Musch, J.
Müntz, C.
Siebenson, J.
Chlad, L.
Kämpfer, B.
Michel, J.
Piasecki, K.
Spies, S.
Sturm, C.
Traxler, M.
Schwab, E.
Blanco, A.
Garzón, J. A.
Przygoda, Witold
Stefaniak, M.
Fortsch, J.
Weber, A. A.
Wiebusch, M. G.
Franco, C.
Lalik, Rafał
Pietraszko, J.
Grunwald, M.
Naumann, L.
Blume, C.
Povar, T.
Kardan, B.
Pechenov, V.
Chudoba, P.
Otto, J.-H.
Rustamov, A.
Malige, Akshay
Fröhlich, I.
Rathod, N.
Hojeij, F.
Koenig, I.
Stroth, J.
Sumara, Konrad
Friese, J.
Münzer, R.
Udrea, I. C.
Salabura, Piotr
Gernhäuser, R.
Schuldes, H.
Arnold, O.
Kolb, B. W.
Maier, L.
Lopes, L.
Holzmann, R.
Spataro, S.
Kunz, T.
Ströbele, H.
Kampert, K-H.
Pauly, C.
Sellheim, P.
Korcyl, Grzegorz
Vazquez-Doce, O.
Höhne, C.
Becker, M.
Fonte, P.
Pysz, K.
Smyrski, Jerzy
Abou Yassine, R.
Mahmoud, T.
Schild, N.
Heinz, T.
Linz, F.
Wirth, J.
Epple, E.
Kugler, A.
Scozzi, F.
Kornakov, G.
Rost, A.
Parpottas, Y.
Prościński, Krzysztof
Deveaux, C.
Singh, Udai
Koenig, W.
Wagner, V.
Hennino, T.
Kolas, J.
Deb, S.
Tsertos, H.
Metag, V.
Scheib, T.
Wendisch, C.
Zieliński, Marcin
Dittert, D.
Nabroth, M.
Lapidus, K.
Ramstein, B.
Mihaylov, D. M.
Seck, F.
Fabbietti, L.
Tlusty, P.
Władyszewska, Anna
Atomssa, E. T.
Behnke, C.
Greifenhagen, R.
Harabasz, S.
Berger-Chen, J. C.
Svoboda, O.
Zherebtsova, E.
Zumbruch, P.
Maurus, S.
Mikhaylov, V.
Molenda, A.
Orliński, J.
Gumberidze, M.
Kohls, M.
Szala, M.
Ciepał, I.
Dreyer, J.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Artykuł

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Skocz do pozycji: 3.

Tytuł:: HADES and the QCD phase diagram
Autorzy:: Krueger, W.
Lebedev, A.
Petukhov, O.
Zumbruch, P.
Zherebtsova, E.
Reznikov, S. G.
Spataro, S.
Blanco, A.
Spies, S.
Galatyuk, T.
Povar, T.
Kohls, M.
Przygoda, Witold
Korcyl, Grzegorz
Pysz, K.
Gumberidze, M.
Asal, C.
Kozela, A.
Kulessa, P.
Parpottas, Y.
Fröhlich, I.
Friese, J.
Kämpfer, B.
Pietraszko, J.
Dreyer, J.
Schild, N.
Strikhanov, M.
Svoboda, O.
Kornas, F.
Chudob, P.
Metag, V.
Matulewicz, T.
Hojeij, F.
Seck, F.
Golubeva, M.
Michel, J.
Sobiella, M.
Otto, J.-H.
Fonte, P.
Wendisch, C.
Kuboś, J.
Heinz, T.
Markert, J.
Schwab, E.
Smyrski, Jerzy
Szewczyk, J.
Ladygin, V. P.
Tlusty, P.
Ivashkin, A. P.
Koenig, I.
Heybeck, B.
Ierusalimov, A.
Kugler, A.
Pechenova, O.
Zieliński, Marcin
Kornakov, G.
Wagner, V.
Prozorov, A.
Koenig, W.
Lalik, Rafał
Golosov, O.
Kardan, B.
Zbroszczyk, H.P.
Zinchenko, A.
Włoch, B.
Lykasov, G.
Huck, H.
Pechenov, V.
Fateev, O.
Kedych, V.
Malige, Akshay
Müntz, C.
Blume, C.
Grunwald, M.
Salabura, Piotr
Guber, F.
Saraiva, J.
Weber, A.A.
Greifenhagen, R.
Rodriguez-Ramos, P.
Holzmann, R.
Stroth, J.
Harabasz, Szymon
Taranenko, A.
Förtsch, J.
Esmail, W.A.
Lopes, L.
Naumann, L.
Ritman, J.
Wintz, P.
Strobele, H.
Rustamov, A.
Belyaev, A.
Pfeifer, D.
Reshetin, A.
Shabanov, A.
Perez Andrade, G.
Tsertos, H.
Piasecki, K.
Singh, Udai
Traxler, M.
Adamczewski-Musch, J.
Kampert, K-H.
Kotte, R.
Ciepał, Izabela
Karpushkin, M
Szala, M.
Chlad, L.
Gniazdowski, T
Mamaev, M.V.
Kolas, J.
Sumara, Konrad
Ramstein, B.
Lorenz, M.
Selyuzhenkov, I.
Pauly, C.
Lebedev, S.
Dittert, D.
Hohne, C.
Morozov, S. M.
Grzonka, D.
Khomyakov, V.
Rathod, Narendra
Zhilin, A.
Rost, A.
Wasiluk, M.
Opis:: We discuss new experimental results on the mechanisms of light nuclei production, fluctuationsof conserved charges and the emissivity of matter, studied with HADES at SIS18. The multi-differential representations of hadron and dilepton spectra, collective effects and particle correla-tions are confronted with hitherto model calculations.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Inne

na półce

Skocz do pozycji: 4.

Tytuł:: Hadron production and propagation in pion-induced reactions on nuclei
Autorzy:: Kugler, A.
Tlusty, P.
Siebenson, J.
Kolb, B. W.
Zbroszczyk, H. P.
Friese, J.
Gernhäuser, R.
Kedych, V.
Berger-chen, J. C.
Kohls, M.
Kampert, K.-H.
Zherebtsova, E.
Gumberidze, M.
Singh, Udai
Holzmann, R.
Rost, A.
Zumbruch, P.
Hojeij, F.
Pietraszko, J.
Seck, F.
Molenda, A.
Lopes, L.
Lorenz, M.
Vazquez-Doce, O.
Michel, J.
Pysz, K.
Tsertos, H.
Schild, N.
Mihaylov, D. M.
Lalik, Rafał
Silva, L.
Krueger, W.
Ramstein, B.
Spies, S.
Svoboda, O.
Scozzi, F
Linz, F.
Ciepał, Izabela
Deveaux, C.
Traxler, M.
Kotte, R.
Maurus, S.
Piscicchia, K.
Chudoba, P.
Sturm, C.
Koenig, I.
Scordo, A.
Markert, J.
Kornakov, G.
Nabroth, M.
Epple, E.
Scheib, T.
Władyszewska, Anna
Heinz, T.
Parpottas, Y.
Smyrski, Jerzy
Prozorov, A.
Rodriguez-Ramos, P.
Behnke, C.
Rathod, N.
Pauly, C.
Becker, M.
Ströbele, H.
Hennino, T.
Adamczewski-Musch, J.
Idzik, M.
Piasecki, K.
Atomssa, E. T.
Kardan, B.
Korcyl, Grzegorz
Höhne, C.
Kolas, J.
Pechenova, O.
Schuldes, H.
Deb, S.
Szala, M.
Parschau, M.
Grunwald, M.
Sumara, Konrad
Wendisch, C.
Fonte, P.
Galatyuk, T.
Förtsch, J.
Orliński, J.
Stefaniak, M.
Mikhaylov, V.
Schwab, E.
Wiebusch, M. G.
Zieliński, Marcin
Franco, C.
Prościński, Krzysztof
Kämpfer, B.
Harabasz, S.
Blanco, A.
Naumann, L.
Mahmoud, T.
Weber, A. A.
Curceanu, C.
Spataro, S.
Maier, L.
Otto, J. -H.
Schmidt-Sommerfeld, K.
Blume, C.
Chlad, L.
Garzón, J. A.
Stroth, J.
Rustamov, A.
Koenig, W.
Müntz, C.
Wagner, V.
Pechenov, V.
Wirth, J.
Nowakowski, Krzysztof
Povar, T.
Metag, V.
Münzer, R.
Udrea, I. C.
Dreyer, J.
Greifenhagen, R.
Böhmer, M.
Malige, Akshay
Arnold, O.
Dittert, D.
Lapidus, K.
Salabura, Piotr
Sellheim, P.
Yassine, R. Abou
Fröhlich, I.
Fabbietti, L.
Linev, S.
Kunz, T.
Przygoda, Witold
Opis:: Hadron production ($\pi^{\pm}$, proton, $\Lambda, K^{0}_{S}, K^{\pm}$) in $\pi^{-}$ + C and $\pi^{-}$ + W collisions is investigated at an incident pion beam momentum of 1.7 GeV/c. This comprehensive set of data measured with HADES at SIS18/GSI significantly extends the existing world data on hadron production in pion induced reactions and provides a new reference for models that are commonly used for the interpretation of heavy-ion collisions. The measured inclusive differential production cross-sections are compared with state-of-the-art transport model (GiBUU, SMASH) calculations. The (semi-) exclusive channel $\pi^{-}$ + A $\to \Lambda$ + $K^{0}_{S}$ + X, in which the kinematics of the strange hadrons are correlated, is also investigated and compared to a model calculation. Agreement and remaining tensions between data and the current version of the considered transport models are discussed.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

Artykuł

na półce

Skocz do pozycji: 5.

Tytuł:: Performance of the prototype Silicon Tracking System of the CBM experiment tested with heavy-ion beams at SIS18
Autorzy:: Löchner, S.
Gil, Damian
Al-Turany, M.
Lubynets, O.
Kłeczek, R.
Kyva, V.
Kedych, V.
Schiaua, C.
Kisel, I.
Elizarov, I.
Luo, X.
Pietraszko, J.
Vasylyev, O.
Panasenko, I.
Jipa, A.
Feng, S.
Lorenz, M.
Reiter, S.P.
Gutiérrez Menéndez, D.
Berendes, R.
Nickels, F.
Ristea, O.
Teklishyn, M.
Senger, P.
Herrmann, N.
Marin Garcia, A.M.
Traxler, M.
Sun, K.
Zhou, W.
Visinka, R.
Schünemann, K.
Nabroth, M.
Maragoto Rodríguez, O.
Bercuci, A.
Kliemt, R.
Goldenbaum, F.
Semeniuk, P.
de Cuveland, J.
Selyuzhenkov, I.
Deshmukh, A.A.
Csanád, M.
Keshelashvili, I.
Keller, O.
Petriş, M.
Momot, I.
Becker, M.
Dubla, A.
Zabołotny, W.
Kiš, M.
Sambyal, S.S.
Höhne, C.
Bâsceanu, V.A.
Płaneta, Roman
Sahu, S.K.
Pugatch, V.
Arnoldi-Meadows, B.
Okropiridze, D.
Zhu, X.
Müller, W.F.J.
Galatyuk, T.
Mehta, S.
Taylor, J.
Plujko, V.
Rodríguez Garces, D.
Becker, J.
Zbroszczyk, H.P.
Gupta, A.
Feier-Riesen, C.
Puntke, A.
Mallick, B.
Pugach, M.
Heine, N.
Ghosh, S.K.
Frühauf, J.
Rustamov, A.
Povar, T.
Cherif, H.
Azmi, M.D.
Sefzick, T.
Kozlov, G.
Ritman, J.
Schmidt, C.J.
Gope, S.
Weidenkaff, P.
Nandy, E.
Munkes, P.
Ramírez Zaldivar, D.A.
Han, D.
Deppner, I.
Bhaduri, P.P.
Roether, F.
Schmidt, H.R.
Rost, A.
Greve, N.
Sen, A.
Lasko, Paweł
Mao, Y.
Zischka, G.
Hofman, O.
Yin, Z.
Kohn, M.
Mithran, A.
Dürr, M.
Sahoo, R.
Michel, J.
Söhngen, Y.
Flemming, H.
Linz, F.J.
Cãlin, M.
Staszel, Paweł
Lalik, Rafał
Suddia, O.
Thaufelder, J.
Wang, K.
Wintz, P.
Chaloupka, P.
Samal, S.
Sturm, C.
Yao, M.
Clerkin, E.
Matejcek, F.A.
Xu, H.
Sharma, A.
Blank, T.
Markert, J.
Zhang, X.
Toia, A.
Poźniak, K.
Ahrens, L.J.
Bertini, D.
Bonaventura, D.
Messchendorp, J.
Pauly, C.
Bhat, S.A.
Chattopadhyay, S.
Shiroya, M.
Schledt, D.
Simons, C.
Lymanets, A.
Klein-Bösing, Ch.
Petrovici, M.
Zhou, Y.
Peter, S.
Kasiński, K.
Lazanu, I.
Scharmann, K.
Frankenfeld, U.
Lakos, R.
Vassiliev, I.
Golinka-Bezshyyko, L.
Miskowiec, D.
Prasad, S.K.
Hoffmann, F.
Sidorenko, V.
Taka, E.D.
Thau, S.N.
Dvořák, R.
Unger, K.L.
Wu, K.
Andronic, A.
Zheng, S.
Wielanek, D.
Gorbunov, S.
Shi, S.
Chakrabarti, A.
Stockmanns, T.
Dahm, P.
Yang, J.
Majka, Zbigniew
Peña Rodríguez, J.
Lavrik, E.
Santos Marrero, K.
Jin, Y.
Das, S.
Loizeau, P.-A.
Pfeifer, D.
Deveaux, M.
Bertini, O.
Zumbruch, P.
Bhattacharyya, A.
Wyżykowski, A.
Friese, V.
Sahu, P.K.
Biswas, S.
Janson, T.
Singh, R.
Petráček, V.
Chernyshenko, S.
Ismail, K.
Romaniuk, R.
Koczoń, P.
Kshyvanskyi, O.
Radulescu, L.
Kumar, L.
Matulewicz, T.
Li, Y.
Neuhaus, S.
Mahajan, S.
Heuser, J.M.
Singh, B.K.
Kruszewski, M.
Bhasin, A.
Moreira de Godoy Willems, D.
Yang, R.
Smith, D.
Daribayeva, A.
Bhowmik, N.K.
Redelbach, A.
Koch, K.
Diehl, J.
Bajdel, M.
Appelshäuser, H.
Bhattacharjee, B.
Sharma, P.K.
Ghosh, C.
Spicker, D.
Förtsch, J.
Alam, N.
Beyer, M.
Li, S.
Koziel, M.
Otfinowski, P.
Zharko, S.
Simon, F.
Wolf, Gy.
Han, J.
Singh, O.
Leung, Y.H.
Zhou, D.
Bezshyyko, O.
Blume, C.
Stroth, J.
Gutsche, B.
Huang, Y.
Darwish, H.
Podgornov, N.
Wahmes, L.
Wilms, A.
Faber, L.J.
Fröhlich, I.
Soból, Bartosz
Wieloch, Andrzej
Deppe, H.
Trębacz, L.
Kovalchuk, O.
Kugler, A.
Kollarczyk, J.
Fidorra, F.
Roy, A.
Schintke, F.
Mandal, S.
Kampert, K.-H.
Szczygieł, R.
Gangopadhyay, G.
Brzychczyk, Janusz
Holzmann, R.
Bhat, W.A.
Li, W.
Penek, Ö.
Agarwal, K.
Rodríguez Rodríguez, A.
Sun, Y.
Subramanya, G.S.
Deară, D.-A.
Singhal, V.
Hesounová, H.
Ahammed, Z.
Trifonova, E.
Foka, P.
Pan, L.
Liu, F.
Artur, B.
Bluhme, N.
Kapell, R.M.
Weiglhofer, F.
Nerling, F.
Nayak, S.R.
Fischer, P.
Andary, J.
Sun, Z.
Ahmad, N.
Agarwal, A.
Wojtkowski, M.
Emschermann, D.
Kumar, A.
Volkova, E.
Roy, S.
Kadenko, I.
Saini, J.
Senger, A.
Tyagi, O.
Wu, Q.
Singh, A.K.
Raha, S.
Yoo, I.
Wessels, J.P.
Meyer-Ahrens, A.
Piasecki, K.
Boccarella, G.
Dubey, A.K.
Kresan, D.
Mir, M.F.
Collazo Sánchez, L.M.
Bandyopadhyay, A.
Gläßel, S.
Opíchal, A.
Caselle, M.
Sharma, A.K.
Kähler, P.
Zubrzycka, W.
Balzer, M.
Das, R.
Eschke, J.
Kubiak, B.
Uhlig, F.
Bhat, T.A.
Ray, R.
Twarowska, A.
Wang, Y.
Lindenstruth, V.
Pluta, J.
Subramani, P.
Dobishuk, V.
Grzonka, D.
Hutter, D.
Kim, S.
Karabowicz, R.
Krüger, W.
Müntz, C.
Mohanty, B.
Belousov, A.
Seck, F.-J.
Khan, M.M.
Kashyap, V.K.S.
Salabura, Piotr
Gasik, P.
Rubio, E.
Reinefeld, A.
Lehnert, J.
Opis:: The Compressed Baryonic Matter (CBM) experiment at the future Facility for Antiproton and Ion Research (FAIR) is a heavy-ion experiment designed to study nuclear matter at the highest baryonic density. For high-statistics measurements of rare probes, collision rates of up to 10 MHz are targeted. The experiment, therefore, requires fast and radiation-hard detectors, self-triggered detector front-ends, free-streaming readout architecture, and online event reconstruction. The Silicon Tracking System (STS) is the main tracking detector of CBM, designed to reconstruct the trajectories of charged particles with efficiency larger than 95%, a relative momentum uncertainty better than 2% for particle momenta larger than 1 GeV/c inside a 1 Tm magnetic field, and to identify complex decay topologies. It comprises 876 double-sided silicon strip modules arranged in 8 tracking stations. A prototype of this detector, consisting of 12 modules arranged in three tracking stations, is installed in the mini-CBM demonstrator. This experimental setup is a small-scale precursor to the full CBM detector, composed of sub-units of all major CBM systems installed on the SIS18 beamline. In various beam campaigns taken between 2021 and 2024, heavy ion collisions at 1–2 AGeV with an average collision rate of 500 kHz have been recorded. This allows for the evaluation of the operational performance of the STS detector, including signal-to-noise ratio, charge distribution, time and position resolution, hit reconstruction efficiency, and its potential for track and vertex reconstruction.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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