Search

Your search keyword '"Szala A."' showing total 2,966 results
Start Over Author "Szala A."
2,966 results on '"Szala A."'

3. Inclusive e$^+$e$^-$ production in collisions of pions with protons and nuclei in the second resonance region of baryons

Author

Yassine, R. Abou, Adamczewski-Musch, J., Arnold, O., Atomssa, E. T., Becker, M., Behnke, C., Berger-Chen, J. C., Blanco, A., Blume, C., Böhmer, M., Chlad, L., Chudoba, P., Ciepał, I., Deb, S., Deveaux, C., Dittert, D., Dreyer, J., Epple, E., Fabbietti, L., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Förtsch, J., Galatyuk, T., Garzón, J. A., Gernhäuser, R., Greifenhagen, R., Grunwald, M., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Höhne, C., Hojeij, F., Holzmann, R., Idzik, M., Kämpfer, B., Kampert, K-H., Kardan, B., Kedych, V., Koenig, I., Koenig, W., Kohls, M., Kolas, J., Kolb, B. W., Korcyl, G., Kornakov, G., Kotte, R., Krueger, W., Kugler, A., Kunz, T., Lalik, R., Lapidus, K., Linev, S., Linz, F., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Malige, A., Markert, J., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Mikhaylov, V., Molenda, A., Müntz, C., Münzer, R., Nabroth, M., Naumann, L., Nowakowski, K., Orliński, J., Otto, J. -H., Parpottas, Y., Parschau, M., Pauly, C., Pechenov, V., Pechenova, O., Piasecki, K., Pietraszko, J., Povar, T., Prościnki, P., Prozorov, A., Przygoda, W., Pysz, K., Ramstein, B., Rathod, N., Rodriguez-Ramos, P., Rost, A., Rustamov, A., Salabura, P., Scheib, T., Schild, N., Schmidt-Sommerfeld, K., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Siebenson, J., Silva, L., Singh, U., Smyrski, J., Spataro, S., Spies, S., Stefaniak, M., Ströbele, H., Stroth, J., Sturm, C., Sumara, K., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Vazquez-Doce, O., Wagner, V., Weber, A. A., Wendisch, C., Wiebusch, M. G., Wirth, J., Wladyszewska, A, Zbroszczyk, H. P., Zherebtsova, E., Zielinski, M., and Zumbruch, P.

Subjects
Nuclear Experiment
Abstract

Inclusive e$^+$e$^-$ production has been studied with HADES in $\pi^-$ + p, $\pi^-$ + C and $\pi^- + \mathrm{CH}_2$ reactions, using the GSI pion beam at $\sqrt{s_{\pi p}}$ = 1.49 GeV. Invariant mass and transverse momentum distributions have been measured and reveal contributions from Dalitz decays of $\pi^0$, $\eta$ mesons and baryon resonances. The transverse momentum distributions are very sensitive to the underlying kinematics of the various processes. The baryon contribution exhibits a deviation up to a factor seven from the QED reference expected for the dielectron decay of a hypothetical point-like baryon with the production cross section constrained from the inverse $\gamma$ n$\rightarrow \pi^-$ p reaction. The enhancement is attributed to a strong four-momentum squared dependence of the time-like electromagnetic transition form factors as suggested by Vector Meson Dominance (VMD). Two versions of the VMD, that differ in the photon-baryon coupling, have been applied in simulations and compared to data. VMD1 (or two-component VMD) assumes a coupling via the $\rho$ meson and a direct coupling of the photon, while in VMD2 (or strict VMD) the coupling is only mediated via the $\rho$ meson. The VMD2 model, frequently used in transport calculations for dilepton decays, is found to overestimate the measured dielectron yields, while a good description of the data can be obtained with the VMD1 model assuming no phase difference between the two amplitudes. Similar descriptions have also been obtained using a time-like baryon transition form factor model where the pion cloud plays the major role., Comment: (HADES collaboration)

Published
2023

4. Investigating and Analyzing the Influence of a Solar Power Plant’s Life Cycle on the Depletion of Natural Materials and Mineral Resources

Author

Patryk Leda, Izabela Piasecka, Anna Leda, Grzegorz Szala, Andrzej Tomporowski, Patrycja Walichnowska, Patrycja Bałdowska-Witos, and Weronika Kruszelnicka

Subjects
energy, life cycle assessment (LCA), material resources, natural environment, photovoltaic power plant, renewable energy sources, Electrical engineering. Electronics. Nuclear engineering, TK1-9971
Abstract

The production process requires massive amounts of minerals, fossil fuels, and energy. The efficient use of energy and natural resources appears to be crucial to the state of affairs. It should be noted that the post-consumer management of solar power plant elements results in a certain amount of power and matter, as well as harmful effects on the natural world. The major goal of this study was to examine the environmental effect of the solar power plant throughout its life cycle, taking into consideration the depletion of natural materials and mineral resources, using the ReCiPe 2016 model. A life cycle study was performed on an actual 2 MW solar power facility located in northern Poland. This study was conducted using the ReCiPe 2016 model and the Life Cycle Assessment (LCA) methodology. The analyzed renewable energy system’s impact was assessed utilizing 22 impact categories, focusing mostly on the depletion of natural resources. A Life Cycle Assessment was conducted for two post-consumer development scenarios (landfill and recycling). This research focuses on the full solar power plant, not just the photovoltaic panels. Recycling, as a kind of post-consumer development, can provide major environmental benefits and minimize negative environmental consequences throughout the solar power plant’s life cycle. The exceedingly harmful effects can be evident in losses related to water and the aquatic environment. The obtained study findings enabled the development of sustainable-friendly recommendations towards the continuous advancement of the life cycle of solar power plants, thereby reducing the use of rare earth minerals.

Published
2024
Full Text
View/download PDF

5. How much conversation content is actually social: human conversational behaviour revisited

Author

Anna Szala, Sławomir Wacewicz, Marek Placiński, Aleksandra Ewa Poniewierska, Arkadiusz Schmeichel, Michal Mikolaj Stefanczyk, Przemysław Żywiczyński, and Robin I.M. Dunbar

Subjects
conversation analysis, Dunbar, evolutionary psychology, language evolution, social discourse, Language and Literature, Consciousness. Cognition, BF309-499
Abstract

Our study explores aspects of human conversation within the framework of evolutionary psychology, focusing on the proportion of ‘social’ to ‘non-social’ content in casual conversation. Building upon the seminal study by Dunbar et al. (1997, Human Nature, 8, 231–246), which posited that two-thirds of conversation gravitates around social matters, our findings indicate an even larger portion, approximately 85% being of a social nature. Additionally, we provide a nuanced categorisation of ‘social’ rooted in the principles of evolutionary psychology. Similarly to Dunbar et al.’s findings, our results support theories of human evolution that highlight the importance of social interactions and information exchange and the importance of the exchange of social information in human interactions across various contexts.

Published
2025
Full Text
View/download PDF

6. Investigation of the $\mathbf{\Sigma^{0}}$ Production Mechanism in p(3.5 GeV)+p Collisions

Author

Yassine, R. Abou, Arnold, O., Becker, M., Bergmann, P., Blanco, A., Blum, C., Böhmer, M., Carolino, N., Chlad, L., Chudoba, P., Ciepał, I., Dreyer, J., Esmail, W., Fabbietti, L., Fonte, P., Friese, J., Fröhlich, I., Galatyuk, T., Garzón, J. A., Grunwald, M., Gumberidze, M., Harabasz, S., Höhne, C., Hojeij, F., Holzmann, R., Huck, H., Idzik, M., Kämpfer, B., Kardan, B., Kedych, V., Koenig, I., Koenig, W., Kohls, M., Kolas, J., Korcyl, G., Kornakov, G., Kotte, R., Krueger, W., Kugler, A., Kunz, T., Lalik, R., Linz, F., Lopes, L., Lorenz, M., Malige, A., Markert, J., Metag, V., Michel, J., Molenda, A., Müntz, C., Nabroth, M., Naumann, L., Nowakowski, K., Orliński, J., Otto, J. -H., Parpottas, Y., Parschau, M., Pechenov, V., Pechenova, O., Piasecki, K., Pietraszko, J., Prozorov, A., Przygoda, W., Ramstein, B., Rathod, N., Ritman, J., Rost, A., Rustamov, A., Salabura, P., Schild, N., Schwab, E., Seck, F., Singh, U., Spies, S., Stefaniak, M., Ströbele, H., Stroth, J., Sturm, C., Sumara, K., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Wagner, V., Weber, A. A., Wendisch, C., Zbroszczyk, H. P., Zherebtsova, E., Zielinski, M., and Zumbruch, P.

Subjects
Nuclear Experiment
Abstract

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 $\mathrm{\sigma (pK^{+}\Sigma^{0}) [\mu b] = 17.7 \pm 1.7 (stat) \pm 1.6 (syst)}$. Differential cross section distributions of the exclusive channel $\mathrm{pp \rightarrow pK^{+}\Sigma^{0}}$ 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 $\mathrm{K^{+}\Sigma^{0}}$. 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 $\mathrm{GeV/c^{2}}$ ($\mathrm{N^{*}(1710)}$) and 1.900 $\mathrm{GeV/c^{2}}$ ($\mathrm{N^{*}(1900)}$ or $\mathrm{\Delta^{*}(1900)}$) are preferred by the fit.

Published
2023

7. Production of hydrogen isotopes and charged pions in p (3.5 GeV) + Nb reactions

Author

Yassine, R. Abou, Arnold, O., Becker, M., Bergmann, P., Blanco, A., Blume, C., Böhmer, M., Carolino, N., Chlad, L., Chudoba, P., Ciepał, I., Dreyer, J., Esmail, W. A., Fabbietti, L., Fonte, P., Friese, J., Fröhlich, I., Galatyuk, T., Garzón, J. A., Grunwald, M., Gumberidze, M., Harabasz, S., Höhne, C., Hojeij, F., Holzmann, R., Huck, H., Idzik, M., Kämpfer, B., Kardan, B., Kedych, V., Koenig, I., Koenig, W., Kohls, M., Korcyl, G., Kornakov, G., Kornas, F., Kotte, R., Krueger, W., Kugler, A., Kunz, T., Lalik, R., Lopes, L., Lorenz, M., Malige, A., Markert, J., Metag, V., Michel, J., Molenda, A., Müntz, C., Naumann, L., Nowakowski, K., Otto, J. -H., Parpottas, Y., Parschau, M., Pechenov, V., Pechenova, O., Pietraszko, J., Prozorov, A., Przygoda, W., Pysz, K., Ramstein, B., Rathod, N., Rost, A., Rustamov, A., Salabura, P., Schild, N., Schwab, E., Seck, F., Singh, U., Spies, S., Stefaniak, M., Ströbele, H., Stroth, J., Sturm, C., Sumara, K., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Wagner, V., Weber, A. A., Wendisch, C., Zbroszczyk, H. P., Zherebtsova, E., Zumbruch, P., Kamys, B., and Sharma, S.

Subjects
Nuclear Experiment
Abstract

The double differential production cross sections, $d^2\sigma/d\Omega dE$, for hydrogen isotopes and charged pions in the reaction of p + Nb at 3.5 GeV proton beam energy have been measured by the High Acceptance DiElectron Spectrometer (HADES). Thanks to the high acceptance of HADES at forward emission angles and usage of its magnetic field, the measured energy range of hydrogen isotopes could be significantly extended in comparison to the relatively scarce experimental data available in the literature. The data provide information about the development of the intranuclear cascade in the proton-nucleus collisions. They can as well be utilized to study the rate of energy/momentum dissipation in the nuclear systems and the mechanism of elementary and composite particle production in excited nuclear matter at normal density. Data of this type are important also for technological and medical applications. Our results are compared to models developed to describe the processes relevant to nuclear spallation (INCL++) or oriented to probe either the elementary hadronic processes in nuclear matter or the behavior of compressed nuclear matter (GiBUU).

Published
2023

8. Hadron Production and Propagation in Pion-Induced Reactions on Nuclei

Author

Yassine, R. Abou, Adamczewski-Musch, J., Arnold, O., Atomssa, E. T., Becker, M., Behnke, C., Berger-Chen, J. C., Blanco, A., Blume, C., Böhmer, M., Chlad, L., Chudoba, P., Ciepał, I., Deveaux, C., Dittert, D., Dreyer, J., Epple, E., Fabbietti, L., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Förtsc, J., Galatyuk, T., Garzón, J. A., Gernhäuser, R., Greifenhagen, R., Grunwald, M., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Höhne, C., Hojeij, F., Holzmann, R., Idzik, M., Kämpfer, B., Kampert, K-H., Kardan, B., Kedych, V., Koenig, I., Koenig, W., Kohls, M., Kolas, J., Kolb, B. W., Korcyl, G., Kornakov, G., Kotte, R., Krueger, W., Kugler, A., Kunz, T., Lalik, R., Lapidus, K., Linev, S., Linz, F., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Malige, A., Markert, J., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Mikhaylov, V., Molenda, A., Müntz, C., Münzer, R., Nabroth, M., Naumann, L., Nowakowski, K., Orliński, J., Otto, J. -H., Parpottas, Y., Parschau, M., Pauly, C., Pechenov, V., Pechenova, O., Piasecki, K., Pietraszko, J., Povar, T., Prozorov, A., Przygoda, W., Pysz, K., Ramstein, B., Rathod, N., Rodriguez-Ramos, P., Rost, A., Rustamov, A., Salabura, P., Scheib, T., Schild, N., Schmidt-Sommerfeld, K., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Siebenson, J., Silva, L., Singh, U., Smyrski, J., Spataro, S., Spies, S., Stefaniak, M., Ströbele, H., Stroth, J., Strzempek, P., Sturm, C., Sumara, K., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Vazquez-Doce, O., Wagner, V., Weber, A. A., Wendisch, C., Wiebusch, M. G., Wirth, J., Zbroszczyk, H. P., Zherebtsova, E., Zumbruch, P., Curceanu, C., Piscicchia, K., and Scordo, A.

Subjects
Nuclear Experiment
Abstract

Hadron production ($\pi^\pm$, proton, $\Lambda$, $K_S^0$, $K^\pm$) in $\pi^- + \mathrm{C}$ and $\pi^- + \mathrm{W}$ collisions is investigated at an incident pion beam momentum of $1.7~\mathrm{GeV}/c$. 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 $\pi^- + A \rightarrow \Lambda + K_S^0 +X$, 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.

Published
2023

10. Hadron production and propagation in pion-induced reactions on nuclei

Author

Yassine, R. Abou, Adamczewski-Musch, J., Arnold, O., Atomssa, E. T., Becker, M., Behnke, C., Berger-chen, J. C., Blanco, A., Blume, C., Böhmer, M., Chlad, L., Chudoba, P., Ciepał, I., Deb, S., Deveaux, C., Dittert, D., Dreyer, J., Epple, E., Fabbietti, L., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Förtsch, J., Galatyuk, T., Garzón, J. A., Gernhäuser, R., Greifenhagen, R., Grunwald, M., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Höhne, C., Hojeij, F., Holzmann, R., Idzik, M., Kämpfer, B., Kampert, K.-H., Kardan, B., Kedych, V., Koenig, I., Koenig, W., Kohls, M., Kolas, J., Kolb, B. W., Korcyl, G., Kornakov, G., Kotte, R., Krueger, W., Kugler, A., Kunz, T., Lalik, R., Lapidus, K., Linev, S., Linz, F., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Malige, A., Markert, J., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Mikhaylov, V., Molenda, A., Müntz, C., Münzer, R., Nabroth, M., Naumann, L., Nowakowski, K., Orliński, J., Otto, J. -H., Parpottas, Y., Parschau, M., Pauly, C., Pechenov, V., Pechenova, O., Piasecki, K., Pietraszko, J., Povar, T., Prościński, K., Prozorov, A., Przygoda, W., Pysz, K., Ramstein, B., Rathod, N., Rodriguez-Ramos, P., Rost, A., Rustamov, A., Salabura, P., Scheib, T., Schild, N., Schmidt-Sommerfeld, K., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Siebenson, J., Silva, L., Singh, U., Smyrski, J., Spataro, S., Spies, S., Stefaniak, M., Ströbele, H., Stroth, J., Sturm, C., Sumara, K., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Udrea, I. C., Vazquez-Doce, O., Wagner, V., Weber, A. A., Wendisch, C., Wiebusch, M. G., Wirth, J., Władyszewska, A., Zbroszczyk, H. P., Zherebtsova, E., Zielinski, M., Zumbruch, P., Curceanu, C., Piscicchia, K., and Scordo, A.

Published
2024
Full Text
View/download PDF

13. Assessing plastic pollution in farmland: Impact of agricultural practices on bird nesting materials

Author

Zbigniew Kwieciński, Martyna Gajzmer, Marcin Beszterda, Klaudia Szala, Artur Golawski, and Piotr Zduniak

Subjects
Bale net wrap, Bird nests, Farmland, Waste pollution, Environmental pollution, TD172-193.5, Environmental sciences, GE1-350
Abstract

Farmland, a vital terrestrial environment, has seen significant changes due to intensified agricultural practices and plastic pollution. Assessing plastic pollution in farmed areas remains challenging, and understanding its impacts on agricultural ecosystems is limited. The aim of the was to determine whether plastic pollution in agricultural landscapes depends on the type of crops. We used the Red-backed Shrike (Lanius collurio), an indicator bird species and investigated plastic contamination of 122 of its nests. We found plastic waste in 82.1 % of nests, totalling 6234 items weighing 197.2 g. On average, each nest contained 55.7 waste items, constituting approximately 4.3 % of the nest's mass. Plastic string fibres were predominant, making up 95.6 % of the items and 90.7 % of the mass. This variation may be due to different straw and hay management practices and varying levels of vigilance in removing plastic remnants. Contamination levels varied significantly among farmland types, with cultivated fields showing the highest contamination and meadows the lowest.

Published
2024
Full Text
View/download PDF

14. Clinical associations of complement-activating collectins, collectin-10, collectin-11 and mannose-binding lectin in preterm neonates

Author

Gabriela Gajek, Soren W. K. Hansen, Dariusz Jarych, Maja Kufelnicka-Babout, Anna S. Świerzko, Paulina Kobiela, Agnieszka Szala-Poździej, Karolina Chojnacka, Katarzyna Sobczuk, Iwona Domżalska-Popadiuk, Jan Mazela, Jarosław Kalinka, Steffen Thiel, and Maciej Cedzyński

Subjects
CL-10, CL-11, collectin, complement, mannose-binding lectin (MBL), neonate, Immunologic diseases. Allergy, RC581-607
Abstract

IntroductionPremature and low-birthweight infants are at especially high risk of perinatal complications, including impaired thermoregulation, infections and respiratory distress. Such adverse effects and the need for invasive procedures are associated with high mortality among preterms. This study focused on the influence of the innate immune system and tested the levels of collectins, collectin-10 (CL-10), collectin-11 (CL-11) and mannose-binding lectin (MBL) in preterm neonates.MethodsCord blood was collected from 535 preterms (born at gestational age ≤37 weeks). COLEC10 and COLEC11 polymorphisms were analyzed by real-time PCR and those of MBL2 by PCR/PCR-RFLP. The concentrations of collectins in sera from cord blood were determined with ELISA.FindingsLow concentrations of CL-10 in cord sera (G, His219Arg) was more common in preterm premature rupture of membranes (pPROM) cases, compared with corresponding reference groups. Furthermore, C/T or T/T genotypes at COLEC11 at rs3820897 (-9570 C>T) as well as MBL deficiency-associated MBL2 gene variants were more common in preterms diagnosed with RDS than among unaffected newborns.ConclusionThe complement-activating collectins investigated here could be important for maintaining homeostasis in preterm neonates. Despite similar structure and specificity, MBL, CL-10 and CL-11 manifest a different spectrum of clinical associations.

Published
2024
Full Text
View/download PDF

15. Proton, deuteron and triton flow measurements in Au+Au collisions at $\sqrt{s_{NN}} = 2.4$ GeV

Author

HADES collaboration, Adamczewski-Musch, J., Arnold, O., Behnke, C., Belounnas, A., Berger-Chen, J. C., Blanco, A., Blume, C., Böhmer, M., Bordalo, P., Chlad, L., Ciepal, I., Deveaux, C., Dreyer, J., Epple, E., Fabbietti, L., Filip, P., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Galatyuk, T., Garzón, J. A., Gernhäuser, R., Greifenhagen, R., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., Höhne, C., Holzmann, R., Kämpfer, B., Kardan, B., Koenig, I., Koenig, W., Kohls, M., Kolb, B. W., Korcyl, G., Kornakov, G., Kornas, F., Kotte, R., Kugler, A., Kunz, T., Lalik, R., Lapidus, K., 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., Müntz, C., Münzer, R., Naumann, L., Nowakowski, K., Parpottas, Y., Pechenov, V., Pechenova, O., Piasecki, K., Pietraszko, J., Przygoda, W., Pysz, K., Ramos, S., Ramstein, B., Rathod, N., Rodriguez-Ramos, P., Rosier, P., Rost, A., Rustamov, 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., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Wójcik, D., and Zumbruch, P.

Subjects
Nuclear Experiment
Abstract

High precision measurements of flow coefficients $v_{n}$ ($n = 1 - 4$) for protons, deuterons and tritons relative to the first-order spectator plane have been performed in Au+Au collisions at $\sqrt{s_{NN}} = 2.4$ GeV with the High-Acceptance Di-Electron Spectrometer (HADES) at the SIS18/GSI. Flow coefficients are studied as a function of transverse momentum $p_{t}$ and rapidity $y_{cm}$ over a large region of phase space and for several classes of collision centrality. A clear mass hierarchy is found for the slope of $v_{1}$, $d v_{1}/d y^{\prime}|_{y^{\prime} = 0}$ where $y^{\prime}$ is the scaled rapidity, and for $v_{2}$ at mid-rapidity. Scaling with the number of nucleons is observed for the $p_{t}$ dependence of $v_{2}$ and $v_{4}$ at mid-rapidity, which is indicative for nuclear coalescence as the main process responsible for light nuclei formation. $v_{2}$ is found to scale with the initial eccentricity $\langle \epsilon_{2} \rangle$, while $v_{4}$ scales with $\langle \epsilon_{2} \rangle^{2}$ and $\langle \epsilon_{4} \rangle$. The multi-differential high-precision data on $v_{1}$, $v_{2}$, $v_{3}$, and $v_{4}$ provides important constraints on the equation-of-state of compressed baryonic matter., Comment: 21 pages, 18 figures, 4 tables; Figs. 11 updated; The manuscript has associated data in the HEPData repository: https://doi.org/10.17182/hepdata.152804

Published
2022
Full Text
View/download PDF

16. Measurement of global polarization of {\Lambda} hyperons in few-GeV heavy-ion collisions

Author

Yassine, R. Abou, Adamczewski-Musch, J., Asal, C., Becker, M., Belounnas, A., Blanco, A., Blume, C., Chlad, L., Chudoba, P., Ciepal, I., Cordts, M., Dreyer, J., Esmail, W. A., Fabbietti, L., Floersheimer, H., Fonte, P., Friese, J., Fröhlich, I., Förtsch, J., Galatyuk, T., Gniazdowski, T, Greifenhagen, R., Grunwald, M., Gumberidze, M., Harabasz, S., Heinz, T., Höhne, C., Hojeij, F., Holzmann, R., Huck, H., Idzik, M., Kämpfer, B., Kampert, K-H., Kardan, B., Kedych, V., Koenig, I., Koenig, W., Kohls, M., Kolas, J., Kornakov, G., Kotte, R., Kres, I., Krueger, W., Kugler, A., Lalik, R., Lebedev, S., Linev, S., Linz, F., Lopes, L., Lorenz, M., Malige, A., Markert, J., Matulewicz, T., Maurus, S., Metag, V., Michel, J., Molenda, A., Müntz, C., Nabroth, M., Naumann, L., Nowakowski, K., Orliński, J., Otto, J. -H., Parschau, M., Pauly, C., Pechenov, V., Pechenova, O., Pfeifer, D., Piasecki, K., Pietraszko, J., Povar, T., Prozorov, A., Przygoda, W., Pysz, K., Ramstein, B., Rathod, N., Ritman, J., Rodriguez-Ramos, P., Rost, A., Rustamov, A., Salabura, P., Saraiva, J., Schild, N., Schwab, E., Scozzi, F., Seck, F., Selyuzhenkov, I., Singh, U., Skorpil, L., Smyrski, J., Spies, S., Stefaniak, M. S., Ströbele, H., Stroth, J., Sumara, K., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Wagner, V., Wasiluk, M., Weber, A. A., Wendisch, C., Wirth, J., Zbroszczyk, H. P., Zherebtsova, E., Zielinski, M., and Zumbruch, P.

Subjects
Nuclear Experiment
Abstract

The global polarization of {\Lambda} 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 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 (%) = 6.8 \pm 1.3 (stat.) \pm 2.1 (syst.) for Au+Au and (%) = 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., Comment: 8 pages, 4 figures

Published
2022
Full Text
View/download PDF

17. Measurement uncertainty of ethyl alcohol concentration in the exhaled breath of drivers and determination of sobriety at the time of incident

Author

Karolina Szala, Karolina Sekuła, Dominika Jama, and Marek Wiergowski

Subjects
Medicine, Social pathology. Social and public welfare. Criminology, HV1-9960
Abstract

The aim of the study was to determine the components of measurement uncertainty in the concentration of alcohol in exhaled breath and to determine the state of sobriety at the time of incident. Based on the literature review and the authors’ experience in providing opinions for law enforcement and the judiciary, the influence of various factors on the final interpretation of sobriety state is described on the basis of measurement uncertainty of breath analyzers, uncertainty of retrospective and prospective calculations, and uncertainty related to the conversion of alcohol concentrations detected during breath and blood tests. The paper pays particular attention to interpreting the concentrations of ethanol in exhaled breath close to the legal limits of the state of sobriety and the state after alcohol use, or the state after alcohol use and the state of insobriety. Analyzing the results of an exhaled breath test concerning concentrations close to the values of 0.1 mg/dm3 and 0.25 mg/dm3, it is necessary to take into account the factors affecting the measurements obtained, including the measurement uncertainty of the determination of alcohol in exhaled breath, the processes of absorption, distribution and metabolism of ethyl alcohol, and the possibility of the presence of alcohol lingering in the oral cavity. The incorrect execution of measurements of the tested person’s alcohol concentration is also a problematic issue. When determining sobriety state by means of retrospective and prospective calculations, it is important to remember that the uncertainty of the result is affected by a number of factors and depends, among other things, on the information provided by the suspect. Hence, the expert should draw conclusions particularly cautiously and any overestimation or underestimation of the components of uncertainty can lead to erroneous conclusions. Awareness of the uncertainties inherent in the results of a sobriety test or alcohol calculation allows for meaningful interpretation of test results and determination of the sobriety state of the person tested.

Published
2024
Full Text
View/download PDF

18. First measurement of massive virtual photon emission from N* baryon resonances

Author

Yassine, R. Abou, Adamczewski-Musch, J., Arnold, O., Atomssa, E. T., Becker, M., Behnke, C., Berger-Chen, J. C., Blanco, A., Blume, C., Böhmer, M., Chlad, L., Chudoba, P., Ciepał, I., Deb, S., Deveaux, C., Dittert, D., Dreyer, J., Epple, E., Fabbietti, L., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Fortsch, J., Galatyuk, T., Garzón, J. A., Gernhäuser, R., Greifenhagen, R., Grunwald, M., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Höhne, C., Hojeij, F., Holzmann, R., Idzik, M., Kämpfer, B., Kampert, K-H., Kardan, B., Kedych, V., Koenig, I., Koenig, W., Kohls, M., Kolas, J., Kolb, B. W., Korcyl, G., Kornakov, G., Kotte, R., Krueger, W., Kugler, A., Kunz, T., Lalik, R., Lapidus, K., Linev, S., Linz, F., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Malige, A., Markert, J., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Mikhaylov, V., Molenda, A., Müntz, C., Münzer, R., Nabroth, M., Naumann, L., Nowakowski, K., Orliński, J., Otto, J. -H., Parpottas, Y., Parschau, M., Pauly, C., Pechenov, V., Pechenova, O., Piasecki, K., Pietraszko, J., Povar, T., Prościński, K., Prozorov, A., Przygoda, W., Pysz, K., Ramstein, B., Rathod, N., Rodriguez-Ramos, P., Rost, A., Rustamov, A., Salabura, P., Scheib, T., Schild, N., Schmidt-Sommerfeld, K., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Siebenson, J., Silva, L., Singh, U., Smyrski, J., Spataro, S., Spies, S., Stefaniak, M., Ströbele, H., Stroth, J., Sturm, C., Sumara, K., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Udrea, I. C., Vazquez-Doce, O., Wagner, V., Weber, A. A., Wendisch, C., Wiebusch, M. G., Wirth, J., Władyszewska, A., Zbroszczyk, H. P., Zherebtsova, E., Zieliński, M., Zumbruch, P., and Zetenyi, M.

Subjects
Nuclear Experiment
Abstract

First information on the time-like electromagnetic structure of baryons in the second resonance region has been obtained from measurements of dielectron (e+ e-) invariant-mass and angular distributions in the quasi-free reaction $\pi-$ p $\rightarrow$ n e+ e- at $\sqrt{s_{\pi p}}$ = 1.49 GeV with the High Acceptance Di-Electron Spectrometer (HADES) at GSI using the pion beam impinging on a CH$_2$ target. We find a total cross section $\sigma$ = 2.97 $\pm$ 0.07data $\pm$ 0.21acc $\pm$ 0.31Zeff $\mu$b. In complement to the analysis of the inclusive e+ e- channel, this data set provides a crucial test of the description of baryon time-like transitions. Approaches based on a Vector Meson Dominance amplitude containing direct photon and vector meson ($\rho$) couplings to the baryon provide a satisfactory agreement with the data. A good description is also obtained by electromagnetic time-like baryon transition form factors in a covariant spectator-quark model, pointing to the dominance of meson-cloud effects. The dielectron angular distributions exhibit the contributions of virtual photons ($\gamma^*$) with longitudinal polarization, in contrast to real photons. The virtual photon angular dependence supports the dominance of J=3/2, I=1/2 contributions observed in both the $\gamma^*$n and the $\pi \pi$n channels., Comment: revised version, 7 pages, 3 figures

Published
2022

19. Impact of the Coulomb field on charged-pion spectra in few-GeV heavy-ion collisions

Author

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.

Subjects
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

Published
2022
Full Text
View/download PDF

22. Seaweed Nutritional Value and Bioactive Properties: Insights from Ascophyllum nodosum, Palmaria palmata, and Chondrus crispus

Author

Natália Čmiková, Przemysław Łukasz Kowalczewski, Dominik Kmiecik, Aneta Tomczak, Agnieszka Drożdżyńska, Mariusz Ślachciński, Łukasz Szala, Sanja Matić, Tijana Marković, Suzana Popović, Dejan Baskic, and Miroslava Kačániová

Subjects
macroalgae, protein content, fatty acids, antioxidant activity, cytotoxic activity, Science
Abstract

This study investigates the nutritional composition and bioactive properties of Palmaria palmata (dulse), Ascophyllum nodosum (knotted wrack), and Chondrus crispus (Irish moss). Understanding the nutritional values of these seaweeds is very important due to their potential health benefits, especially their antioxidant properties and cytotoxic activities, which point to their ability to inhibit cancer cell proliferation. Comprehensive analyses were conducted to assess protein content, amino acid composition, mineral profile, fatty acids, polyphenols, total carotenoids, antioxidant activity, and cytotoxicity against cervical (HeLa), and colon (HCT-116) cell lines. P. palmata exhibited the highest protein content, while C. crispus was richest in calcium, iron, manganese, and zinc. Amino acid analysis revealed C. crispus as being particularly high in essential and non-essential amino acids, including alanine, glutamic acid, and glycine. A. nodosum and C. crispus were rich in polyunsaturated fatty acids (PUFAs), notably eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA). A. nodosum showed the highest total carotenoid content. Polyphenol analysis highlighted the presence of compounds such as p-coumaric acid, gallic acid, and p-hydroxybenzoic acid across the species. Both the ethanolic and hexane A. nodosum extracts demonstrated the strongest antioxidant potential in DPPH• and ABTS+ assays. The cytotoxicity evaluation revealed high anticancer activity of A. nodosum and C. crispus hexane extract against HeLa and HCT-116, though it employed cell cycle arrest and apoptosis. A. nodosum hexane extract exhibited moderate selective anticancer activity against HCT-116. These findings underscore the nutritional diversity and potential health benefits of these macroalgae (seaweed) species, suggesting their suitability as functional foods or supplements, offering diverse nutritional and therapeutic benefits.

Published
2024
Full Text
View/download PDF

24. The influence of methylene blue and malachite green on common carp (Cyprinus carpio) blood parameters

Author

Bartosz Bojarski, Patrycja Jurecka, Leszek Szala, Elżbieta Kondera, Czesława Gaj-Chucher, Bartłomiej Stonawski, and Agnieszka Rombel-Bryzek

Subjects
methylene blue, malachite green, fish, toxicity, Genetics, QH426-470, Animal biochemistry, QP501-801
Abstract

Methylene blue (MB) and malachite green (MG) are pharmaceuticals which were used in aquaculture to treat fish diseases for many years. Nowadays, they are prohibited in many countries, but illegal use is still reported. The aim of the present study was to evaluate the effects of these agents on blood parameters of juvenile common carp (Cyprinus carpio L.). The fish were exposed for 7 or 14 days to therapeutic concentrations of the drugs (2 mg/l in the case of MB and 0.2 mg/l for MG). The results indicate that fish treated with MB or MG showed inflammation and an anaemic response (minor in the case of MG). Moreover, increased erythropoiesis was observed in MB-treated fish. The results of the study indicate that these pharmaceuticals at therapeutic concentrations are toxic to juvenile common carp. MB proved to be more toxic than MG. Therefore, we advise against the use of these pharmaceuticals at the concentrations tested (even if permitted by the legislation of a given country). In our opinion, a ban on their use in fish intended for human consumption is justified.

Published
2023
Full Text
View/download PDF

25. Investigation of the Σ0 Production Mechanism in p(3.5 GeV)+p Collisions

Author

Yassine, R. Abou, Arnold, O., Becker, M., Bergmann, P., Blanco, A., Blume, C., Böhmer, M., Carolino, N., Chlad, L., Chudoba, P., Ciepał, I., Dreyer, J., Esmail, W., Fabbietti, L., Fonte, P., Friese, J., Fröhlich, I., Galatyuk, T., Garzón, J. A., Grunwald, M., Gumberidze, M., Harabasz, S., Höhne, C., Hojeij, F., Holzmann, R., Huck, H., Idzik, M., Kämpfer, B., Kardan, B., Kedych, V., Koenig, I., Koenig, W., Kohls, M., Kolas, J., Korcyl, G., Kornakov, G., Kotte, R., Krueger, W., Kugler, A., Kunz, T., Lalik, R., Linz, F., Lopes, L., Lorenz, M., Malige, A., Markert, J., Metag, V., Michel, J., Molenda, A., Müntz, C., Nabroth, M., Naumann, L., Nowakowski, K., Orliński, J. , Otto, J. -H., Parpottas, Y., Parschau, M., Pechenov, V., Pechenova, O., Piasecki, K., Pietraszko, J., Prozorov, A., Przygoda, W., Ramstein, B., Rathod, N., Ritman, J., Rost, A., Rustamov, A., Salabura, P., Schild, N., Schwab, E., Seck, F., Singh, U., Spies, S., Stefaniak, M., Ströbele, H., Stroth, J., Sturm, C., Sumara, K., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Wagner, V., Weber, A. A., Wendisch, C., Zbroszczyk, H. P., Zherebtsova, E., Zielinski, M., and Zumbruch, P.

Published
2024
Full Text
View/download PDF

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

Author

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.

Subjects
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
Full Text
View/download PDF

27. Production and electromagnetic decay of hyperons: a feasibility study with HADES as a Phase-0 experiment at FAIR

Author

Adamczewski-Musch, J., Belyaev, A., Blanco, A., Blume, C., Charlotte, C., Borisenko, D. S., Chlad, L., Chudoba, P., Ciepał, I., Derichs, A., Dittert, D., Dreyer, J., Esmail, W. A., Fateev, O., Fonte, P., Friese, J., Fröhlich, I., Förtsch, J., Galatyuk, T., Georgadze, I., Golosov, O., Golubeva, M., Greifenhagen, R., Grunwald, M., Grzonka, D., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Heybeck, B., Höhne, C., Holona, M., Holzmann, R., Huck, H., Ierusalimov, A., Imre, M., Ivashkin, A., Kämpfer, B., Kampert, K-H., Kardan, B., Kedych, V., Khomyakov, V., Koenig, I., Koenig, W., Kohls, M., Kornakov, G., Kornas, F., Kotte, R., Kozela, A., Kozlov, V., Kres, I., Kuboś, J., Kugler, A., Kulessa, P., Ladygin, V., Lalik, R., Galliard, C. Le, Lebedev, A., Lebedev, S., Linev, S., Lopes, L., Lorenz, M., Lykasov, G., Malige, A., Markert, J., Matulewicz, T., Michel, J., Morozov, S., Müntz, C., Naumann, L., Nowakowski, K., Orfanitsky, S., Otto, J. -H., Patel, V., Pauly, C., Pechenov, V., Pechenova, O., Andrade, G. Perez, Petukhov, O., Pfeifer, D., Piasecki, K., Pietraszko, J., Prozorov, A., Przygoda, W., Pysz, K., Ramstein, B., Rathod, N., Regina, J., Reshetin, A., Reznikov, S., Rieger, J. T., Ritman, J., Rodriguez-Ramos, P., Rost, A., Rustamov, A., Salabura, P., Saraiva, J., Schild, N., Schwab, E., Schönning, K., Scozzi, F., Seck, F., Selyuzhenkov, I., Serdyuk, V., Shabanov, A., Singh, U., Smyrski, J., Sobiella, M., Spies, S., Strikhanov, M., Ströbele, H., Stroth, J., Sumara, K., Svoboda, O., Szala, M., Szewczyk, J., Taranenko, A., Tlusty, P., Traxler, M., Wagner, V., Wasiluk, M., Weber, A. A., Wendisch, C., Wintz, P., Włoch, B., Zbroszczyk, H. P., Zherebzova, E., Zhilin, A., Zinchenko, A., and Zumbruch, P.

Subjects
Nuclear Experiment
Abstract

A feasibility study has been performed in order to investigate the performance of the HADES detector to measure the electromagnetic decays of the hyperon resonances $\Sigma(1385)^0$, $\Lambda(1405)$ and $\Lambda{\Lambda}(1520)$ as well as the production of double strange baryon systems $\Xi^-$ and $\Lambda\Lambda$ in p+p reactions at a beam kinetic energy of 4.5 GeV. The existing HADES detector will be upgraded by a new Forward Detector, which extends the detector acceptance into a range of polar angles that plays a crucial role for these investigations. The analysis of each channel is preceded by a consideration of the production cross-sections. Afterwards the expected signal count rates using a target consisting of either liquid hydrogen or polyethylene are summarized., Comment: Draft prepared by Rafa{\l} Lalik, James Ritman, Piotr Salabura, 19 pages, 21 figures, 4 tables

Published
2020
Full Text
View/download PDF

28. Directed, elliptic and higher order flow harmonics of protons, deuterons and tritons in Au+Au collisions at $\sqrt{s_{NN}} = 2.4$ GeV

Author

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.

Subjects
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

Published
2020
Full Text
View/download PDF

29. Charged pion production in $\mathbf{Au+Au}$ collisions at $\mathbf{\sqrt{s_{NN}}}$ = 2.4$\mathbf{GeV}$

Author

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.

Subjects
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

Published
2020
Full Text
View/download PDF

30. Two-Pion production in the second resonance region in $\pi^- p$ collisions with HADES

Author

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.

Subjects
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 $BR=12.2 \pm 1.9\%$.

Published
2020
Full Text
View/download PDF

31. The Psychological Science Accelerator’s COVID-19 rapid-response dataset

Author

Buchanan, Erin M., Lewis, Savannah C., Paris, Bastien, Forscher, Patrick S., Pavlacic, Jeffrey M., Beshears, Julie E., Drexler, Shira Meir, Gourdon-Kanhukamwe, Amélie, Mallik, Peter R, Silan, Miguel Alejandro A., Miller, Jeremy K., IJzerman, Hans, Moshontz, Hannah, Beaudry, Jennifer L., Suchow, Jordan W., Chartier, Christopher R., Coles, Nicholas A., Sharifian, MohammadHasan, Todsen, Anna Louise, Levitan, Carmel A., Azevedo, Flávio, Legate, Nicole, Heller, Blake, Rothman, Alexander J., Dorison, Charles A., Gill, Brian P., Wang, Ke, Rees, Vaughan W., Gibbs, Nancy, Goldenberg, Amit, Thi Nguyen, Thuy-vy, Gross, James J., Kaminski, Gwenaêl, von Bastian, Claudia C., Paruzel-Czachura, Mariola, Mosannenzadeh, Farnaz, Azouaghe, Soufian, Bran, Alexandre, Ruiz-Fernandez, Susana, Santos, Anabela Caetano, Reggev, Niv, Zickfeld, Janis H., Akkas, Handan, Pantazi, Myrto, Ropovik, Ivan, Korbmacher, Max, Arriaga, Patrícia, Gjoneska, Biljana, Warmelink, Lara, Alves, Sara G., de Holanda Coelho, Gabriel Lins, Stieger, Stefan, Schei, Vidar, Hanel, Paul H. P., Szaszi, Barnabas, Fedotov, Maksim, Antfolk, Jan, Marcu, Gabriela-Mariana, Schrötter, Jana, Kunst, Jonas R., Geiger, Sandra J., Adetula, Adeyemi, Kocalar, Halil Emre, Kielińska, Julita, Kačmár, Pavol, Bokkour, Ahmed, Galindo-Caballero, Oscar J., Djamai, Ikhlas, Pöntinen, Sara Johanna, AGESIN, Bamikole Emmanuel, Jernsäther, Teodor, Urooj, Anum, Rachev, Nikolay R., Koptjevskaja-Tamm, Maria, Kurfalı, Murathan, Pit, Ilse L., Li, Ranran, Çoksan, Sami, Dubrov, Dmitrii, Paltrow, Tamar Elise, Baník, Gabriel, Korobova, Tatiana, Studzinska, Anna, Jiang, Xiaoming, Aruta, John Jamir Benzon R., Vintr, Jáchym, Chiu, Faith, Kaliska, Lada, Berkessel, Jana B., Tümer, Murat, Morales-Izquierdo, Sara, Chuan-Peng, Hu, Vezirian, Kevin, Rosa, Anna Dalla, Bialobrzeska, Olga, Vasilev, Martin R., Beitner, Julia, Kácha, Ondřej, Žuro, Barbara, Westerlund, Minja, Nedelcheva-Datsova, Mina, Findor, Andrej, Krupić, Dajana, Kowal, Marta, Askelund, Adrian Dahl, Pourafshari, Razieh, Đorđević, Jasna Milošević, Schmidt, Nadya-Daniela, Baklanova, Ekaterina, Szala, Anna, Zakharov, Ilya, Vranka, Marek A., Ihaya, Keiko, Grano, Caterina, Cellini, Nicola, Białek, Michał, Anton-Boicuk, Lisa, Dalgar, Ilker, Adıgüzel, Arca, Verharen, Jeroen P. H., Maturan, Princess Lovella G., Kassianos, Angelos P., Oliveira, Raquel, Čadek, Martin, Adoric, Vera Cubela, Özdoğru, Asil Ali, Sverdrup, Therese E., Aczel, Balazs, Zambrano, Danilo, Ahmed, Afroja, Tamnes, Christian K., Yamada, Yuki, Volz, Leonhard, Sunami, Naoyuki, Suter, Lilian, Vieira, Luc, Groyecka-Bernard, Agata, Kamburidis, Julia Arhondis, Reips, Ulf-Dietrich, Harutyunyan, Mikayel, Adetula, Gabriel Agboola, Allred, Tara Bulut, Barzykowski, Krystian, Antazo, Benedict G, Zsido, Andras N., Šakan, Dušana Dušan, Cyrus-Lai, Wilson, Ahlgren, Lina Pernilla, Hruška, Matej, Vega, Diego, Manunta, Efisio, Mokady, Aviv, Capizzi, Mariagrazia, Martončik, Marcel, Say, Nicolas, Filip, Katarzyna, Vilar, Roosevelt, Staniaszek, Karolina, Vdovic, Milica, Adamkovic, Matus, Johannes, Niklas, Hajdu, Nandor, Cohen, Noga, Overkott, Clara, Krupić, Dino, Hubena, Barbora, Nilsonne, Gustav, Mioni, Giovanna, Solorzano, Claudio Singh, Ishii, Tatsunori, Chen, Zhang, Kushnir, Elizaveta, Karaarslan, Cemre, Ribeiro, Rafael R., Khaoudi, Ahmed, Kossowska, Małgorzata, Bavolar, Jozef, Hoyer, Karlijn, Roczniewska, Marta, Karababa, Alper, Becker, Maja, Monteiro, Renan P., Kunisato, Yoshihiko, Metin-Orta, Irem, Adamus, Sylwia, Kozma, Luca, Czarnek, Gabriela, Domurat, Artur, Štrukelj, Eva, Alvarez, Daniela Serrato, Parzuchowski, Michal, Massoni, Sébastien, Czamanski-Cohen, Johanna, Pronizius, Ekaterina, Muchembled, Fany, van Schie, Kevin, Saçaklı, Aslı, Hristova, Evgeniya, Kuzminska, Anna O., Charyate, Abdelilah, Bijlstra, Gijsbert, Afhami, Reza, Majeed, Nadyanna M., Musser, Erica D., Sirota, Miroslav, Ross, Robert M., Yeung, Siu Kit, Papadatou-Pastou, Marietta, Foroni, Francesco, Almeida, Inês A. T., Grigoryev, Dmitry, Lewis, David M. G., Holford, Dawn L., Janssen, Steve M. J., Tatachari, Srinivasan, Batres, Carlota, Olofsson, Jonas K., Daches, Shimrit, Belaus, Anabel, Pfuhl, Gerit, Corral-Frias, Nadia Sarai, Sousa, Daniela, Röer, Jan Philipp, Isager, Peder Mortvedt, Godbersen, Hendrik, Walczak, Radoslaw B., Van Doren, Natalia, Ren, Dongning, Gill, Tripat, Voracek, Martin, DeBruine, Lisa M., Anne, Michele, Očovaj, Sanja Batić, Thomas, Andrew G., Arvanitis, Alexios, Ostermann, Thomas, Wolfe, Kelly, Arinze, Nwadiogo Chisom, Bundt, Carsten, Lamm, Claus, Calin-Jageman, Robert J, Davis, William E., Karekla, Maria, Zorjan, Saša, Jaremka, Lisa M., Uttley, Jim, Hricova, Monika, Koehn, Monica A, Kiselnikova, Natalia, Bai, Hui, Krafnick, Anthony J., Balci, Busra Bahar, Ballantyne, Tonia, Lins, Samuel, Vally, Zahir, Esteban-Serna, Celia, Schmidt, Kathleen, Macapagal, Paulo Manuel L., Szwed, Paulina, Zdybek, Przemysław Marcin, Moreau, David, Collins, W. Matthew, Joy-Gaba, Jennifer A., Vilares, Iris, Tran, Ulrich S., Boudesseul, Jordane, Albayrak-Aydemir, Nihan, Dixson, Barnaby James Wyld, Perillo, Jennifer T, Ferreira, Ana, Westgate, Erin C., Aberson, Christopher L., Arinze, Azuka Ikechukwu, Jaeger, Bastian, Butt, Muhammad Mussaffa, Silva, Jaime R., Storage, Daniel Shafik, Janak, Allison P, Jiménez-Leal, William, Soto, Jose A., Sorokowska, Agnieszka, McCarthy, Randy, Tullett, Alexa M, Frias-Armenta, Martha, Ribeiro, Matheus Fernando Felix, Hartanto, Andree, Forbes, Paul A. G., Willis, Megan L., del Carmen Tejada R, María, Torres, Adriana Julieth Olaya, Stephen, Ian D, Vaidis, David C., de la Rosa-Gómez, Anabel, Yu, Karen, Sutherland, Clare A. M., Manavalan, Mathi, Behzadnia, Behzad, Urban, Jan, Baskin, Ernest, McFall, Joseph P., Ogbonnaya, Chisom Esther, Fu, Cynthia H. Y., Rahal, Rima-Maria, Ndukaihe, Izuchukwu L. G., Hostler, Thomas J., Kappes, Heather Barry, Sorokowski, Piotr, Khosla, Meetu, Lazarevic, Ljiljana B., Eudave, Luis, Vilsmeier, Johannes K., Luis, Elkin O., Muda, Rafał, Agadullina, Elena, Cárcamo, Rodrigo A., Reeck, Crystal, Anjum, Gulnaz, Venegas, Mónica Camila Toro, Misiak, Michal, Ryan, Richard M., Nock, Nora L., Travaglino, Giovanni A., Mensink, Michael C., Feldman, Gilad, Wichman, Aaron L., Chou, Weilun, Ziano, Ignazio, Seehuus, Martin, Chopik, William J., Kung, Franki Y. H., Carpentier, Joelle, Vaughn, Leigh Ann, Du, Hongfei, Xiao, Qinyu, Lima, Tiago J. S., Noone, Chris, Onie, Sandersan, Verbruggen, Frederick, Radtke, Theda, and Primbs, Maximilian A.

Published
2023
Full Text
View/download PDF

33. Effect of light intensity in the nest site on eggshell pigmentation in a hole-nesting passerine

Author

Katarzyna Malinowska, Klaudia Szala, Paweł Podkowa, and Adrian Surmacki

Subjects
Medicine, Science
Abstract

Abstract Daylight is an important factor necessary for the proper embryonic development of birds, which raises the question, what happens when birds nest in relatively dim sites? The study experimentally tested whether there is a relationship between light conditions at the nesting site and the protoporphyrin-based pigmentation in the eggshell of the Great Tit (Parus major). We hypothesised that at lower light levels, eggs are less pigmented to increase the amount of light reaching the embryo. Our study system consisted of two types of nest boxes: "dark", in which the only source of light was the entrance hole, and "bright", which had two additional side windows. Photographs of clutches taken during the incubation period were used to quantify eggshell pigmentation. Multispectral image analyses were performed to measure variables correlating with protoporphyrin content, such as spot brightness, average spot size, spotting coverage, and spot red chroma. Repeatability analysis indicated that eggshell colouration characteristics were significantly and moderately repeatable between eggs from a single clutch, which suggests that they are under genetic and environmental control. However, none of the pigmentation traits differed significantly between the two types of nest boxes. We speculate about other ecological aspects that might have influenced the observed variability in eggshell pigmentation.

Published
2023
Full Text
View/download PDF

34. Early Childhood Education during conflict and change: Learning from the World War 2 experience of Breslau, Germany/Wroclaw, Poland

Author

Andrea Noel and Marta Kondracka-Szala

Subjects
Education history, education in emergencies, Eastern Europe, Early Childhood Education, young children, Theory and practice of education, LB5-3640, Societies: secret, benevolent, etc., HS1-3371
Abstract

This research explores Early Childhood Education (ECE) during an intensely chaotic historical period in one city in Eastern/Central Europe. Breslau, initially a German city, was transferred to Poland and renamed Wroclaw in 1945 after World War 2. Breslau/Wroclaw experienced intense upheaval before, during, and after the war including the almost complete physical devastation of the city and the ensuing massive migration from the expulsion of ethnic Germans and the resettlement of Poles from eastern regions. The impact of war and government policies on the development and continuance of Early Childhood Education as Hitler and National Socialism rose to power, during the months of uncertainty around the end of the war, and on the establishment of a new system of Early Childhood Education in Wroclaw under Soviet domination receive focus in this paper. The results and discussion are applied to contemporary circumstances such as the current crisis in Ukraine, as well as social and political upheaval arising from other emergencies.

Published
2024
Full Text
View/download PDF

35. Proton number fluctuations in $\sqrt{s_{NN}}$ = 2.4 GeV Au+Au collisions studied with HADES

Author

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.

Subjects
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
Full Text
View/download PDF

36. Identical pion intensity interferometry at sqrt(s_{NN})=2.4 GeV

Author

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.

Subjects
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

Published
2019
Full Text
View/download PDF

37. The Effect of a Diet Enriched with Jerusalem artichoke, Inulin, and Fluoxetine on Cognitive Functions, Neurogenesis, and the Composition of the Intestinal Microbiota in Mice

Author

Aleksandra Szewczyk, Marta Andres-Mach, Mirosław Zagaja, Agnieszka Kaczmarczyk-Ziemba, Maciej Maj, and Joanna Szala-Rycaj

Subjects
topinambur, inulin, fluoxetine, prebiotics, intestinal microbiota, neurogenesis, Biology (General), QH301-705.5
Abstract

The aim of the study was to assess the effect of long-term administration of natural prebiotics: Jerusalem artichoke (topinambur, TPB) and inulin (INU) as well as one of the most popular antidepressants, fluoxetine (FLU), on the proliferation of neural stem cells, learning and memory functions, and the composition of the intestinal microbiota in mice. Cognitive functions were assessed using the Morris Water Maze (MWM)Test. Cells were counted using a confocal microscope and ImageJ software. We performed 16S rRNA sequencing to assess changes in the gut microbiome of the mice. The obtained results showed that the 10-week supplementation with TPB (250 mg/kg) and INU (66 mg/kg) stimulates the growth of probiotic bacteria, does not affect the learning and memory process, and does not disturb the proliferation of neural stem cells in the tested animals. Based on this data, we can assume that both TPB and INU seem to be safe for the proper course of neurogenesis. However, 2-week administration of FLU confirmed an inhibitory impact on Lactobacillus growth and negatively affected behavioral function and neurogenesis in healthy animals. The above studies suggest that the natural prebiotics TPB and INU, as natural supplements, may have the potential to enrich the diversity of intestinal microbiota, which may be beneficial for the BGM axis, cognitive functions, and neurogenesis.

Published
2023
Full Text
View/download PDF

42. Sex Ratio

Author

Szala, Anna, Shackelford, Todd K., Gartner, Marieke Cassia, Section editor, Vonk, Jennifer, editor, and Shackelford, Todd K., editor

Published
2022
Full Text
View/download PDF

43. Origin of Species

Author

Szala, Anna, Shackelford, Todd K., Sellers, Douglas, Section editor, Vonk, Jennifer, editor, and Shackelford, Todd K., editor

Published
2022
Full Text
View/download PDF

44. Influence of Heat Treatment Temperature on Fatigue Toughness in Medium-Carbon High-Strength Steels

Author

Wheatley, G., Branco, R., Correia, José A. F. O., Martins, R. F., Macek, W., Marciniak, Z., Szala, M., Correia, José A. F. O., Series Editor, De Jesus, Abílio M. P., Series Editor, Ayatollahi, Majid Reza, Advisory Editor, Berto, Filippo, Advisory Editor, Fernández-Canteli, Alfonso, Advisory Editor, Hebdon, Matthew, Advisory Editor, Kotousov, Andrei, Advisory Editor, Lesiuk, Grzegorz, Advisory Editor, Murakami, Yukitaka, Advisory Editor, Carvalho, Hermes, Advisory Editor, Zhu, Shun-Peng, Advisory Editor, Bordas, Stéphane, Advisory Editor, Fantuzzi, Nicholas, Advisory Editor, Susmel, Luca, Advisory Editor, Dutta, Subhrajit, Advisory Editor, Maruschak, Pavlo, Advisory Editor, Fedorova, Elena, Advisory Editor, and Duda, Szymon, editor

Published
2022
Full Text
View/download PDF

48. In COVID-19 Health Messaging, Loss Framing Increases Anxiety with Little-to-No Concomitant Benefits: Experimental Evidence from 84 Countries

Author

Dorison, Charles A., Lerner, Jennifer S., Heller, Blake H., Rothman, Alexander J., Kawachi, Ichiro I., Wang, Ke, Rees, Vaughan W., Gill, Brian P., Gibbs, Nancy, Ebersole, Charles R., Vally, Zahir, Tajchman, Zuzanna, Zsido, Andras N., Zrimsek, Mija, Chen, Zhang, Ziano, Ignazio, Gialitaki, Zoi, Ceary, Chris D., Lin, Yijun, Kunisato, Yoshihiko, Yamada, Yuki, Xiao, Qinyu, Jiang, Xiaoming, Du, Xinkai, Yao, Elvin, Wilson, John Paul, Cyrus-Lai, Wilson, Jimenez-Leal, William, Law, Wilbert, Collins, W. Matthew, Richard, Karley L., Vranka, Marek, Ankushev, Vladislav, Schei, Vidar, Križanić, Valerija, Kadreva, Veselina Hristova, Adoric, Vera Cubela, Tran, Ulrich S., Yeung, Siu Kit, Hassan, Widad, Houston, Ralph, Lima, Tiago J. S., Ostermann, Thomas, Frizzo, Thomas, Sverdrup, Therese E., House, Thea, Gill, Tripat, Fedotov, Maksim, Paltrow, Tamar, Jernsäther, Teodor, Koptjevskaja-Tamm, Maria, Hostler, Thomas J., Ishii, Tatsunori, Szaszi, Barnabas, Adamus, Sylwia, Suter, Lilian, Habib, Sumaiya, Studzinska, Anna, Stojanovska, Dragana, Janssen, Steve M. J., Stieger, Stefan, Schulenberg, Stefan E., Tatachari, Srinivasan, Azouaghe, Soufian, Sorokowski, Piotr, Sorokowska, Agnieszka, Song, Xin, Lewis, Savannah C., Sinkolova, Sladjana, Grigoryev, Dmitry, Drexler, Shira Meir, Daches, Shimrit, Geniole, Shawn N., Vračar, Selena, Massoni, Sébastien, Zorjan, Saša, Sarıoğuz, Eylül, Izquierdo, Sara Morales, Alves, Sara G., Pöntinen, Sara, Solas, Sara Álvarez, Ordoñez-Riaño, Santiago, Očovaj, Sanja Batić, Onie, Sandersan, Lins, Samuel, Çoksan, Sami, Sacakli, Asli, Ruiz-Fernández, Susana, Geiger, Sandra J., FatahModares, Saeideh, Walczak, Radoslaw B., Betlehem, Ruben, Vilar, Roosevelt, Cárcamo, Rodrigo, Ross, Robert M., McCarthy, Randy, Ballantyne, Tonia, Westgate, Erin C., Afhami, Reza, Ren, Dongning, Monteiro, Renan P., Reips, Ulf-Dietrich, Reggev, Niv, Calin-Jageman, Robert J., Pourafshari, Razieh, Oliveira, Raquel, Nedelcheva-Datsova, Mina, Rahal, Rima-Maria, Ribeiro, Rafael R., Radtke, Theda, Searston, Rachel, Habte, Redeate, Zdybek, Przemysław, Chen, Sau-Chin, Maturan, Princess Lovella G., Perillo, Jennifer T., Isager, Peder Mortvedt, Kačmár, Pavol, Macapagal, Paulo Manuel, Szwed, Paulina, Hanel, Paul H. P., Forbes, Paul A. G., Arriaga, Patrícia, Paris, Bastien, Papachristopoulos, Konstantinos, Correa, Pablo Sebastián, Kácha, Ondřej, Bernardo, Márcia, Campos, Olatz, Bravo, Olalla Niño, Galindo-Caballero, Oscar J., Ogbonnaya, Chisom Esther, Bialobrzeska, Olga, Kiselnikova, Natalia, Simonovic, Nicolle, Cohen, Noga, Nock, Nora L., Johannes, Niklas, Albayrak-Aydemir, Nihan, Say, Nicolas, Torunsky, Nathan, Van Doren, Natalia, Sunami, Naoyuki, Rachev, Nikolay R., Majeed, Nadyanna M., Schmidt, Nadya-Daniela, Nadif, Khaoula, Corral-Frías, Nadia S., Ouherrou, Nihal, Pantazi, Myrto, Lucas, Marc Y., Vasilev, Martin R., Ortiz, María Victoria, Butt, Muhammad Mussaffa, Kabir, Muhib, Muda, Rafał, Tejada Rivera, Maria del Carmen MC, Sirota, Miroslav, Seehuus, Martin, Parzuchowski, Michal, Toro, Mónica, Hricova, Monika, Maldonado, Mónica Alarcón, Marszalek, Magdalena, Karekla, Maria, Mioni, Giovanna, Bosma, Minke Jasmijn, Westerlund, Minja, Vdovic, Milica, Bialek, Michal, Silan, Miguel A., Anne, Michele, Misiak, Michal, Grinberg, Maurice, Capizzi, Mariagrazia, Espinoza Barría, Mauricio F., Kurfali, Merve A., Mensink, Michael C., Harutyunyan, Mikayel, Khosla, Meetu, Korbmacher, Max, Adamkovič, Matúš, Ribeiro, Matheus Fernando Felix, Terskova, Maria, Hruška, Matej, Martončik, Marcel, Voracek, Martin, Čadek, Martin, Frías-Armenta, Martha, Kowal, Marta, Topor, Marta, Roczniewska, Marta, Oosterlinck, Marlies, Kohlová, Markéta Braun, Paruzel-Czachura, Mariola, Romanova, Marina, Papadatou-Pastou, Marietta, Lund, Maria Louise, Antoniadi, Maria, Jones, Marc V., Ortiz, Manuel S., Manavalan, Mathi, Muminov, Abdumalik, Kossowska, Małgorzata, Friedemann, Maja, Wielgus, Magdalena, Varella, Marco A. C., Colloff, Melissa F., Bradford, Maria, Vaughn, Leigh Ann, Eudave, Luis, Vieira, Luc, Pineda, Lina Maria Sanabria, Pérez, Laura Calderón, Lazarevic, Ljiljana B., Jaremka, Lisa M., Kushnir, Elizaveta, Anton-Boicuk, Lisa, de Holanda Coelho, Gabriel Lins, Ahlgren, Lina, Levitan, Carmel A., Micheli, Leticia, Volz, Leonhard, Stojanovska, Marija, Boucher, Leanne, Samojlenko, Lara, Delgado, Lady Grey Javela, Kaliska, Lada, Warmelink, Lara, Rojas-Berscia, Luis Miguel, Yu, Karen, Wachowicz, Jakub, Desai, Kermeka, Barzykowski, Krystian, Kozma, Luca, Evans, Kortnee, Kirgizova, Komila, Agesin, Bamikole Emmanuel, Koehn, Monica A, Wolfe, Kelly, Korobova, Tatiana, Klevjer, Kristoffer, van Schie, Kevin, Vezirian, Kevin, Damnjanović, Kaja, Thommesen, Katrine Krabbe, Schmidt, Kathleen, Filip, Katarzyna, Grzech, Karolina, Hoyer, Karlijn, Moon, Karis, Rana, Kafeel, Janjić, Kristina, Suchow, Jordan W., Kielińska, Julita, Cruz Vásquez, Julio E, Beitner, Julia, Vargas-Nieto, Juan Camilo, Roxas, Jose Carlos T., Taber, Jennifer, Urriago-Rayo, Joan, Pavlacic, Jeffrey M., Bavolar, Jozef, Soto, José A., Olofsson, Jonas K., Vilsmeier, Johannes K., Messerschmidt, Johanna, Czamanski-Cohen, Johanna, Boudesseul, Jordane, Lee, Jeong Min, Kamburidis, Julia, Zickfeld, Janis, Miranda, Jacob F., Verharen, Jeroen P. H., Hristova, Evgeniya, Beshears, Julie E., Đorđević, Jasna Milošević, Bosch, Jasmijn, Valentova, Jaroslava Varella, Antfolk, Jan, Berkessel, Jana B., Schrötter, Jana, Urban, Jan, Röer, Jan Philipp, Norton, James O, Silva, Jaime R., Pickering, Jade S., Vintr, Jáchym, Uttley, Jim, Kunst, Jonas R., Ndukaihe, Izuchukwu L. G., Iyer, Aishwarya, Vilares, Iris, Ivanov, Aleksandr, Ropovik, Ivan, Sula, Isabela, Sarieva, Irena, Metin-Orta, Irem, Prusova, Irina, Pinto, Isabel, Bozdoc, Andreea Ioana, Almeida, Inês A. T., Pit, Ilse L., Dalgar, Ilker, Zakharov, Ilya, Arinze, Azuka Ikechukwu, Ihaya, Keiko, Stephen, Ian D., Gjoneska, Biljana, Brohmer, Hilmar, Flowe, Heather, Godbersen, Hendrik, Kocalar, Halil Emre, Hedgebeth, Mattie V., Chuan-Peng, Hu, Sharifian, MohammadHasan, Manley, Harry, Akkas, Handan, Hajdu, Nandor, Azab, Habiba, Kaminski, Gwenael, Nilsonne, Gustav, Anjum, Gulnaz, Travaglino, Giovanni A., Feldman, Gilad, Pfuhl, Gerit, Czarnek, Gabriela, Marcu, Gabriela Mariana, Hofer, Gabriela, Banik, Gabriel, Adetula, Gabriel Agboola, Bijlstra, Gijsbert, Verbruggen, Frederick, Kung, Franki Y. H., Foroni, Francesco, Singer, Gage, Muchembled, Fany, Azevedo, Flavio, Mosannenzadeh, Farnaz, Marinov, Evelina, Štrukelj, Eva, Etebari, Zahra, Baskin, Ernest, Garcia, Elkin Oswaldo Luis, Musser, Erica, van Steenkiste, I.M.M., Ahn, El Rim, Pronizius, Ekaterina, Jackson, Emily A, Manunta, Efisio, Agadullina, Elena, Šakan, Dušana, Dursun, Pinar, Dujols, Olivier, Dubrov, Dmitrii, Willis, Megan, Tümer, Murat, Beaudry, Jennifer L., Popović, Dora, Dunleavy, Daniel, Djamai, Ikhlas, Krupić, Dino, Vega, Diego, Du, Hongfei, Mola, Débora, Davis, William E., Holford, Dawn Liu, Lewis, David M. G., Vaidis, David C., Ozery, Daphna Hausman, Ricaurte, Danilo Zambrano, Storage, Daniel, Sousa, Daniela, Alvarez, Daniela Serrato, Rosa, Anna Dalla, Krupić, Dajana, Marko, Dafne, Moreau, David, Reeck, Crystal, Correia, Rita C., Whitt, Cassie M., Lamm, Claus, Solorzano, Claudio Singh, von Bastian, Claudia C., Sutherland, Clare AM, Overkott, Clara, Aberson, Christopher L., Wang, Chunhui, Karashiali, Christiana, Noone, Chris, Chiu, Faith, Picciocchi, Chiara, Karaarslan, Cemre, Cellini, Nicola, Esteban-Serna, Celia, Reyna, Cecilia, Batres, Carlota, Li, Ranran, Grano, Caterina, Carpentier, Joelle, Tamnes, Christian K., Fu, Cynthia H.Y., Ishkhanyan, Byurakn, Bylinina, Lisa, Jaeger, Bastian, Bundt, Carsten, Allred, Tara Bulut, Bokkour, Ahmed, Bogatyreva, Natalia, Chopik, William J., Antazo, Benedict, Behzadnia, Behzad, Becker, Maja, Cocco, Beatrice, Chou, Wei-Lun, Hubena, Barbora, Žuro, Barbara, Aczel, Balazs, Baklanova, Ekaterina, Bai, Hui, Balci, Busra Bahar, Babinčák, Peter, Dixson, Barnaby James Wyld, Mokady, Aviv, Kappes, Heather Barry, Atari, Mohammad, Szala, Anna, Szabelska, Anna, Aruta, John Jamir Benzon, Domurat, Artur, Arinze, Nwadiogo Chisom, Modena, Arianna, Adiguzel, Arca, Monajem, Arash, ARABI, Kanza AIT EL, Özdoğru, Asil Ali, Olaya Torres, Adriana Julieth, Theodoropoulou, Andriana, Jurković, Anita Penić, Kassianos, Angelos P., Findor, Andrej, Hartanto, Andree, Thibault Landry, Anais, Ferreira, Ana, Santos, Anabela Caetano, De la Rosa-Gomez, Anabel, Gourdon-Kanhukamwe, Amélie, Todsen, Anna Louise, Karababa, Alper, Janak, Allison, Bran, Alexandre, Tullett, Alexa M., Kuzminska, Anna O., Krafnick, Anthony J, Urooj, Anum, Khaoudi, Ahmed, Ahmed, Afroja, Groyecka-Bernard, Agata, Askelund, Adrian Dahl, Adetula, Adeyemi, Belaus, Anabel, Charyate, Abdelilah Ca, Wichman, Aaron L., Stoyanova, Alina, Greenburgh, Anna, Thomas, Andrew G., Arvanitis, Alexios, Forscher, Patrick S., Mallik, Peter R, Primbs, Maximilian A., Miller, Jeremy K., Moshontz, Hannah, Urry, Heather L., IJzerman, Hans, Basnight-Brown, Dana M., Chartier, Christopher R., Buchanan, Erin M., and Coles, Nicholas A.

Published
2022
Full Text
View/download PDF

49. Sub-threshold production of K^{0}_{s} mesons and {\Lambda} hyperons in Au(1.23A GeV)+Au

Author

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.

Subjects
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
Full Text
View/download PDF

50. Strong absorption of hadrons with hidden and open strangeness in nuclear matter

Author

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.

Subjects
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

Catalog

Books, media, physical & digital resources
See catalog results