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Deep sub-threshold ϕ production in Au+Au collisions

Jörn Adamczewski-Musch, Oliver Werner Arnold, Claudia Behnke, Amel Belounnas, A. Belyaev, Jia-Chii Berger-Chen, Jacek Biernat, Alberto Blanco, Christoph Blume, Michael Böhmer, Paula Bordalo, Sergey P. Chernenko, Lukáš Chlad, Christina Anna Deveaux, J. Dreyer, Adrian Dybczak, Eliane Epple, Laura Fabbietti, Oleg Fateev, Peter Filip, Paulo Fonte, Celso Franco, Jürgen Friese, Ingo Fröhlich, Tetyana Galatyuk, Juan A. Garzón, Roman Gernhäuser, Marina Golubeva, Robert Greifenhagen, Fedor Guber, Malgorzata Gumberidze, Szymon Harabasz, Tobias Heinz, Thierry Hennino, Stanislav Hlaváč, Claudia Höhne, Romain Holzmann, Alexander P. Ierusalimov, Alexander Ivashkin, Burkhard Kämpfer, Tatiana L. Karavicheva, Behruz Kardan, Ilse Koenig, W. Koenig, Burkhard W. Kolb, Grzegorz Korcyl, Georgy Kornakov, Roland Kotte, Wolfgang Kühn, Andrej Kugler, Tobias Kunz, Alexander Kurepin, Aleksey K. Kurilkin, Pavel Kurilkin, Vladimir P. Ladygin, Rafał Tomasz Lalik, Kirill Lapidus, Alexei Lebedev, Lourenco Vaz Gil Lopes, Manuel Lorenz, Tariq Mahmoud, Ludwig W. Maier, Alessio Mangiarotti, Jochen Markert, Steffen Maurus, Volker Metag, Jan Michel, Dimitar Mihaylov, Sergey Morozov, Christian Müntz, Robert Helmut Münzer, Lothar Naumann, K.N. Nowakowski, Marek Palka, Yannis Parpottas, Vladimir Pechenov, Olga Pechenova, Oleg Petukhov, Jerzy Pietraszko, Witold Przygoda, S. Ramos, Béatrice Ramstein, Andrey Reshetin, Pablo Rodriguez Ramos, Philippe Rosier, Adrian Rost, Alexander Sadovsky, Piotr Salabura, Timo Scheib, Heidi Schuldes, Erwin Schwab, Federico Scozzi, Florian Seck, Patrick Sellheim, Johannes Stephan Siebenson, L. Silva, Yuri G. Sobolev, Stefano Spataro, Herbert Ströbele, Joachim Stroth, Paweł Strzempek, Christian Thomas Sturm, Ondřej Svoboda, Melanie Szala, Pavel Tlustý, Michael Traxler, Haralabos Tsertos, Evgeny A. Usenko, Vladimir Wagner, Christian Wendisch, Michael Wiebusch, Joana Wirth, Yuri V. Zanevsky, Peter W. Zumbruch

  • We present data on charged kaons (K±) and ϕ mesons in Au(1.23A GeV)+Au collisions. It is the first simultaneous measurement of K− and ϕ mesons in central heavy-ion collisions below a kinetic beam energy of 10A GeV. The ϕ/K− multiplicity ratio is found to be surprisingly high with a value of 0.52±0.16 and shows no dependence on the centrality of the collision. Consequently, the different slopes of the K+ and K− transverse-mass spectra can be explained solely by feed-down, which substantially softens the spectra of K− mesons. Hence, in contrast to the commonly adapted argumentation in literature, the different slopes do not necessarily imply diverging freeze-out temperatures of K+ and K− mesons caused by different couplings to baryons.

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Author:Jörn Adamczewski-MuschORCiD, Oliver Werner Arnold, Claudia BehnkeORCiDGND, Amel Belounnas, A. Belyaev, Jia-Chii Berger-Chen, Jacek BiernatORCiD, Alberto BlancoORCiD, Christoph BlumeORCiDGND, Michael BöhmerORCiDGND, Paula BordaloORCiD, Sergey P. Chernenko, Lukáš ChladORCiD, Christina Anna DeveauxORCiDGND, J. Dreyer, Adrian Dybczak, Eliane EppleORCiD, Laura FabbiettiORCiDGND, Oleg Fateev, Peter FilipORCiD, Paulo FonteORCiDGND, Celso FrancoORCiD, Jürgen Friese, Ingo Fröhlich, Tetyana GalatyukORCiDGND, Juan A. Garzón, Roman GernhäuserORCiDGND, Marina Golubeva, Robert GreifenhagenORCiDGND, Fedor GuberORCiD, Malgorzata Gumberidze, Szymon HarabaszORCiD, Tobias Heinz, Thierry Hennino, Stanislav HlaváčORCiD, Claudia HöhneGND, Romain HolzmannORCiD, Alexander P. Ierusalimov, Alexander IvashkinORCiD, Burkhard KämpferORCiDGND, Tatiana L. KaravichevaORCiD, Behruz KardanORCiDGND, Ilse KoenigGND, W. Koenig, Burkhard W. Kolb, Grzegorz KorcylORCiD, Georgy KornakovORCiD, Roland KotteORCiD, Wolfgang KühnORCiD, Andrej KuglerORCiD, Tobias Kunz, Alexander KurepinORCiD, Aleksey K. KurilkinORCiD, Pavel Kurilkin, Vladimir P. Ladygin, Rafał Tomasz Lalik, Kirill LapidusORCiD, Alexei Lebedev, Lourenco Vaz Gil Lopes, Manuel LorenzORCiDGND, Tariq MahmoudGND, Ludwig W. MaierGND, Alessio MangiarottiORCiD, Jochen MarkertGND, Steffen Maurus, Volker MetagORCiDGND, Jan MichelGND, Dimitar Mihaylov, Sergey Morozov, Christian Müntz, Robert Helmut MünzerORCiDGND, Lothar NaumannORCiD, K.N. Nowakowski, Marek PalkaORCiD, Yannis ParpottasORCiD, Vladimir Pechenov, Olga Pechenova, Oleg Petukhov, Jerzy Pietraszko, Witold PrzygodaORCiD, S. Ramos, Béatrice RamsteinORCiD, Andrey ReshetinORCiD, Pablo Rodriguez RamosORCiD, Philippe RosierORCiD, Adrian RostGND, Alexander SadovskyGND, Piotr SalaburaORCiD, Timo ScheibGND, Heidi SchuldesGND, Erwin Schwab, Federico ScozziGND, Florian SeckORCiDGND, Patrick SellheimGND, Johannes Stephan SiebensonGND, L. Silva, Yuri G. SobolevORCiDGND, Stefano SpataroORCiD, Herbert Ströbele, Joachim StrothORCiDGND, Paweł Strzempek, Christian Thomas Sturm, Ondřej SvobodaORCiD, Melanie Szala, Pavel Tlustý, Michael TraxlerORCiD, Haralabos TsertosORCiD, Evgeny A. Usenko, Vladimir Wagner, Christian WendischGND, Michael WiebuschORCiDGND, Joana WirthORCiD, Yuri V. ZanevskyGND, Peter W. ZumbruchGND
URN:urn:nbn:de:hebis:30:3-700517
DOI:https://doi.org/10.1016/j.physletb.2018.01.048
ISSN:0370-2693
ISSN:1873-2445
Parent Title (English):Physics Letters B
Publisher:Elsevier
Place of publication:Amsterdam
Document Type:Article
Language:English
Date of Publication (online):2018/03/10
Date of first Publication:2018/03/10
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Creating Corporation:HADES Collaboration
Release Date:2022/09/25
Volume:778.2018
Page Number:5
First Page:403
Last Page:407
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 4.0