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    Wyświetlanie 1-6 z 6
    Tytuł:
    Investigation of the $\Sigma ^{0}$ production mechanism in p(3.5 GeV)+p collisions
    Autorzy:
    Krueger, W.
    Zumbruch, P.
    Zherebtsova, E.
    Blanco, A.
    Garzón, J. A.
    Spies, S.
    Galatyuk, T.
    Kohls, M.
    Przygoda, Witold
    Korcyl, Grzegorz
    Kunz, T.
    Gumberidze, M.
    Arnold, O.
    Parpottas, Y.
    Fröhlich, I.
    Friese, J.
    Kämpfer, B.
    Pietraszko, J.
    Dreyer, J.
    Schild, N.
    Svoboda, O.
    Nowakowski, Krzysztof
    Fabbietti, L.
    Orliński, J.
    Metag, V.
    Hojeij, F.
    Seck, F.
    Idzik, M.
    Michel, J.
    Rathod, N.
    Fonte, P.
    Weber, A. A.
    Chudoba, P.
    Wendisch, C.
    Markert, J.
    Schwab, E.
    Tlusty, P.
    Molenda, A.
    Koenig, I.
    Höhne, C.
    Kugler, A.
    Pechenova, O.
    Zieliński, Marcin
    Kornakov, G.
    Esmail, W.
    Wagner, V.
    Prozorov, A.
    Koenig, W.
    Lalik, Rafał
    Kardan, B.
    Nabroth, M.
    Böhmer, M.
    Stefaniak, M.
    Huck, H.
    Pechenov, V.
    Kedych, V.
    Malige, Akshay
    Müntz, C.
    Blume, C.
    Carolino, N.
    Salabura, Piotr
    Grunwald, M.
    Holzmann, R.
    Bergmann, P.
    Stroth, J.
    Lopes, L.
    Naumann, L.
    Ritman, J.
    Rustamov, A.
    Sturm, C.
    Tsertos, H.
    Linz, F.
    Piasecki, K.
    Singh, Udai
    Otto, J. -H.
    Traxler, M.
    Zbroszczyk, H. P.
    Kotte, R.
    Becker, M.
    Ciepał, Izabela
    Szala, M.
    Chlad, L.
    Ströbele, H.
    Kolas, J.
    Sumara, Konrad
    Ramstein, B.
    Lorenz, M.
    Harabasz, S.
    Yassine, R. Abou
    Parschau, M.
    Rost, A.
    Opis:
    The production of $\Sigma^{0}$ hyperons in proton proton collisions at a beam kinetic energy of 3.5 GeV impinging on a liquid hydrogen target was investigated using data collected with the HADES setup. The total production cross section is found to be $\sigma(pK^{+} \Sigma^{0})$ = 17.7 $\pm$ 1.7(stat) $\pm$ 1.6(syst) μb. Differential cross section distributions of the exclusive channel $pp \to pK^{+} \Sigma^{0}$ were analyzed in the center-of-mass, Gottfried–Jackson and helicity reference frames for the first time at the excess energy of 556 MeV. The data support the interplay between pion and kaon exchange mechanisms and clearly demonstrate the contribution of interfering nucleon resonances decaying to $K^{+} \Sigma^{0}$. The Bonn–Gatchina partial wave analysis was employed to analyse the data. Due to the limited statistics, it was not possible to obtain an unambiguous determination of the relative contribution of intermediate nucleon resonances to the final state. However nucleon resonances with masses around 1.710 GeV/c$^{2}$ (N* (1710)) and 1.900 GeV/c$^{2}$ N* (1900) or $\Delta$* (1900)) are preferred by the fit.
    Dostawca treści:
    Repozytorium Uniwersytetu Jagiellońskiego
    Artykuł
    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
    Tytuł:
    Impact of the Coulomb field on charged-pion spectra in few-GeV heavy-ion collisions
    Autorzy:
    Karavicheva, T.
    Przygoda, Witold
    Zanevsky, Y.
    Koenig, W.
    Matulewicz, T.
    Guber, F.
    Mangiarotti, A.
    Pysz, K.
    Mihaylov, D. M.
    Malige, Akshay
    Koenig, I.
    Friese, J.
    Kämpfer, B.
    Pechenov, V.
    Siebenson, J.
    Franco, C.
    Fonte, P.
    Galatyuk, T.
    Morozov, S.
    Scheib, T.
    Kornakov, G.
    Behnke, C.
    Harabasz, Szymon
    Kohls, M.
    Höhne, C.
    Korcyl, Grzegorz
    Wendisch, C.
    Svoboda, O.
    Usenko, E.
    Parschau, M.
    Kurepin, A.
    Deveaux, C.
    Sobolev, Yu. G.
    Ciepał, Izabela
    Schuldes, H.
    Münzer, R.
    Lapidus, K.
    Wirth, J.
    Blume, C.
    Parpottas, Y.
    Dreyer, J.
    Ströbele, H.
    Hlavac, S.
    Spies, S.
    Pietraszko, J.
    Tsertos, H.
    Lebedev, A.
    Heinz, T.
    Kornas, F.
    Selyuzhenkov, I.
    Müntz, C.
    Sturm, C.
    Schwab, E.
    Blanco, A.
    Fabbietti, L.
    Adamczewski-Musch, J.
    Berger-Chen, J. C.
    Filip, P.
    Gumberidze, M.
    Wagner, V.
    Lalik, Rafał
    Bordalo, P.
    Schild, N.
    Kurilkin, A.
    Kolb, B. W.
    Ivashkin, A.
    Traxler, M.
    Pechenova, O.
    Fröhlich, I.
    Belounnas, A.
    Reshetin, A.
    Maier, L.
    Rodriguez-Ramos, P.
    Petukhov, O.
    Golubeva, M.
    Sadovsky, A.
    Tlusty, P.
    Kurilkin, P.
    Nabroth, M.
    Arnold, O.
    Zumbruch, P.
    Kotte, R.
    Ladygin, V.
    Linev, S.
    Lopes, L.
    Singh, Udai
    Piasecki, K.
    Sumara, Konrad
    Michel, J.
    Belyaev, A.
    Naumann, L.
    Böhmer, M.
    Gernhäuser, R.
    Greifenhagen, R.
    Markert, J.
    Chlad, L.
    Rathod, Narendra
    Rustamov, A.
    Salabura, Piotr
    Mahmoud, T.
    Ramstein, B.
    Lorenz, M.
    Spataro, S.
    Wiebusch, M. G.
    Epple, E.
    Szala, M.
    Fateev, O.
    Scozzi, F.
    Kunz, T.
    Holzmann, R.
    Kardan, B.
    Hennino, T.
    Rost, A.
    Rosier, P.
    Smyrski, Jerzy
    Kugler, A.
    Garzón, J. A.
    Ramos, S.
    Chernenko, S.
    Sellheim, P.
    Ierusalimov, A.
    Maurus, S.
    Silva, L.
    Metag, V.
    Nowakowski, Krzysztof
    Stroth, J.
    Seck, F.
    Opis:
    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-m$_{t}$ region (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 energy 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.
    Dostawca treści:
    Repozytorium Uniwersytetu Jagiellońskiego
    Artykuł
    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
    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
    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
    Artykuł
      Wyświetlanie 1-6 z 6

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