Physics Letters B (Mar 2018)
Deep sub-threshold ϕ production in Au+Au collisions
- J. Adamczewski-Musch,
- O. Arnold,
- C. Behnke,
- A. Belounnas,
- A. Belyaev,
- J.C. Berger-Chen,
- J. Biernat,
- A. Blanco,
- C. Blume,
- M. Böhmer,
- P. Bordalo,
- S. Chernenko,
- L. Chlad,
- C. Deveaux,
- J. Dreyer,
- A. Dybczak,
- E. Epple,
- L. Fabbietti,
- O. Fateev,
- P. Filip,
- P. Fonte,
- C. Franco,
- J. Friese,
- I. Fröhlich,
- T. Galatyuk,
- J.A. Garzón,
- R. Gernhäuser,
- M. Golubeva,
- R. Greifenhagen,
- F. Guber,
- M. Gumberidze,
- S. Harabasz,
- T. Heinz,
- T. Hennino,
- S. Hlavac,
- C. Höhne,
- R. Holzmann,
- A. Ierusalimov,
- A. Ivashkin,
- B. Kämpfer,
- T. Karavicheva,
- B. Kardan,
- I. Koenig,
- W. Koenig,
- B.W. Kolb,
- G. Korcyl,
- G. Kornakov,
- R. Kotte,
- W. Kühn,
- A. Kugler,
- T. Kunz,
- A. Kurepin,
- A. Kurilkin,
- P. Kurilkin,
- V. Ladygin,
- R. Lalik,
- K. Lapidus,
- A. Lebedev,
- L. Lopes,
- M. Lorenz,
- T. Mahmoud,
- L. Maier,
- A. Mangiarotti,
- J. Markert,
- S. Maurus,
- V. Metag,
- J. Michel,
- D.M. Mihaylov,
- S. Morozov,
- C. Müntz,
- R. Münzer,
- L. Naumann,
- K.N. Nowakowski,
- M. Palka,
- Y. Parpottas,
- V. Pechenov,
- O. Pechenova,
- O. Petukhov,
- J. Pietraszko,
- W. Przygoda,
- S. Ramos,
- B. Ramstein,
- A. Reshetin,
- P. Rodriguez-Ramos,
- P. Rosier,
- A. Rost,
- A. Sadovsky,
- P. Salabura,
- T. Scheib,
- H. Schuldes,
- E. Schwab,
- F. Scozzi,
- F. Seck,
- P. Sellheim,
- J. Siebenson,
- L. Silva,
- Yu.G. Sobolev,
- S. Spataro,
- H. Ströbele,
- J. Stroth,
- P. Strzempek,
- C. Sturm,
- O. Svoboda,
- M. Szala,
- P. Tlusty,
- M. Traxler,
- H. Tsertos,
- E. Usenko,
- V. Wagner,
- C. Wendisch,
- M.G. Wiebusch,
- J. Wirth,
- Y. Zanevsky,
- P. Zumbruch
Affiliations
- J. Adamczewski-Musch
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- O. Arnold
- Physik Department E62, Technische Universität München, 85748 Garching, Germany
- C. Behnke
- Institut für Kernphysik, Goethe-Universität, 60438 Frankfurt, Germany
- A. Belounnas
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, F-91406 Orsay Cedex, France
- A. Belyaev
- Joint Institute of Nuclear Research, 141980 Dubna, Russia
- J.C. Berger-Chen
- Physik Department E62, Technische Universität München, 85748 Garching, Germany
- J. Biernat
- Smoluchowski Institute of Physics, Jagiellonian University of Cracow, 30-059 Kraków, Poland
- A. Blanco
- LIP-Laboratório de Instrumentação e Física Experimental de Partículas, 3004-516 Coimbra, Portugal
- C. Blume
- Institut für Kernphysik, Goethe-Universität, 60438 Frankfurt, Germany
- M. Böhmer
- Physik Department E62, Technische Universität München, 85748 Garching, Germany
- P. Bordalo
- LIP-Laboratório de Instrumentação e Física Experimental de Partículas, 3004-516 Coimbra, Portugal
- S. Chernenko
- Joint Institute of Nuclear Research, 141980 Dubna, Russia
- L. Chlad
- Nuclear Physics Institute, The Czech Academy of Sciences, 25068 Rez, Czech Republic
- C. Deveaux
- II.Physikalisches Institut, Justus Liebig Universität Giessen, 35392 Giessen, Germany
- J. Dreyer
- Institut für Strahlenphysik, Helmholtz-Zentrum Dresden-Rossendorf, 01314 Dresden, Germany
- A. Dybczak
- Smoluchowski Institute of Physics, Jagiellonian University of Cracow, 30-059 Kraków, Poland
- E. Epple
- Physik Department E62, Technische Universität München, 85748 Garching, Germany
- L. Fabbietti
- Physik Department E62, Technische Universität München, 85748 Garching, Germany
- O. Fateev
- Joint Institute of Nuclear Research, 141980 Dubna, Russia
- P. Filip
- Institute of Physics, Slovak Academy of Sciences, 84228 Bratislava, Slovakia
- P. Fonte
- LIP-Laboratório de Instrumentação e Física Experimental de Partículas, 3004-516 Coimbra, Portugal
- C. Franco
- LIP-Laboratório de Instrumentação e Física Experimental de Partículas, 3004-516 Coimbra, Portugal
- J. Friese
- Physik Department E62, Technische Universität München, 85748 Garching, Germany
- I. Fröhlich
- Institut für Kernphysik, Goethe-Universität, 60438 Frankfurt, Germany
- T. Galatyuk
- Technische Universität Darmstadt, 64289 Darmstadt, Germany
- J.A. Garzón
- LabCAF. F. Física, Univ. de Santiago de Compostela, 15706 Santiago de Compostela, Spain
- R. Gernhäuser
- Physik Department E62, Technische Universität München, 85748 Garching, Germany
- M. Golubeva
- Institute for Nuclear Research, Russian Academy of Science, 117312 Moscow, Russia
- R. Greifenhagen
- Institut für Strahlenphysik, Helmholtz-Zentrum Dresden-Rossendorf, 01314 Dresden, Germany
- F. Guber
- Institute for Nuclear Research, Russian Academy of Science, 117312 Moscow, Russia
- M. Gumberidze
- Technische Universität Darmstadt, 64289 Darmstadt, Germany
- S. Harabasz
- Technische Universität Darmstadt, 64289 Darmstadt, Germany
- T. Heinz
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- T. Hennino
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, F-91406 Orsay Cedex, France
- S. Hlavac
- Institute of Physics, Slovak Academy of Sciences, 84228 Bratislava, Slovakia
- C. Höhne
- II.Physikalisches Institut, Justus Liebig Universität Giessen, 35392 Giessen, Germany
- R. Holzmann
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- A. Ierusalimov
- Joint Institute of Nuclear Research, 141980 Dubna, Russia
- A. Ivashkin
- Institute for Nuclear Research, Russian Academy of Science, 117312 Moscow, Russia
- B. Kämpfer
- Institut für Strahlenphysik, Helmholtz-Zentrum Dresden-Rossendorf, 01314 Dresden, Germany
- T. Karavicheva
- Institute for Nuclear Research, Russian Academy of Science, 117312 Moscow, Russia
- B. Kardan
- Institut für Kernphysik, Goethe-Universität, 60438 Frankfurt, Germany
- I. Koenig
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- W. Koenig
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- B.W. Kolb
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- G. Korcyl
- Smoluchowski Institute of Physics, Jagiellonian University of Cracow, 30-059 Kraków, Poland
- G. Kornakov
- Technische Universität Darmstadt, 64289 Darmstadt, Germany
- R. Kotte
- Institut für Strahlenphysik, Helmholtz-Zentrum Dresden-Rossendorf, 01314 Dresden, Germany
- W. Kühn
- II.Physikalisches Institut, Justus Liebig Universität Giessen, 35392 Giessen, Germany
- A. Kugler
- Nuclear Physics Institute, The Czech Academy of Sciences, 25068 Rez, Czech Republic
- T. Kunz
- Physik Department E62, Technische Universität München, 85748 Garching, Germany
- A. Kurepin
- Institute for Nuclear Research, Russian Academy of Science, 117312 Moscow, Russia
- A. Kurilkin
- Joint Institute of Nuclear Research, 141980 Dubna, Russia
- P. Kurilkin
- Joint Institute of Nuclear Research, 141980 Dubna, Russia
- V. Ladygin
- Joint Institute of Nuclear Research, 141980 Dubna, Russia
- R. Lalik
- Physik Department E62, Technische Universität München, 85748 Garching, Germany
- K. Lapidus
- Physik Department E62, Technische Universität München, 85748 Garching, Germany
- A. Lebedev
- Institute of Theoretical and Experimental Physics, 117218 Moscow, Russia
- L. Lopes
- LIP-Laboratório de Instrumentação e Física Experimental de Partículas, 3004-516 Coimbra, Portugal
- M. Lorenz
- Institut für Kernphysik, Goethe-Universität, 60438 Frankfurt, Germany
- T. Mahmoud
- II.Physikalisches Institut, Justus Liebig Universität Giessen, 35392 Giessen, Germany
- L. Maier
- Physik Department E62, Technische Universität München, 85748 Garching, Germany
- A. Mangiarotti
- LIP-Laboratório de Instrumentação e Física Experimental de Partículas, 3004-516 Coimbra, Portugal
- J. Markert
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- S. Maurus
- Physik Department E62, Technische Universität München, 85748 Garching, Germany
- V. Metag
- II.Physikalisches Institut, Justus Liebig Universität Giessen, 35392 Giessen, Germany
- J. Michel
- Institut für Kernphysik, Goethe-Universität, 60438 Frankfurt, Germany
- D.M. Mihaylov
- Physik Department E62, Technische Universität München, 85748 Garching, Germany
- S. Morozov
- Institute for Nuclear Research, Russian Academy of Science, 117312 Moscow, Russia
- C. Müntz
- Institut für Kernphysik, Goethe-Universität, 60438 Frankfurt, Germany
- R. Münzer
- Physik Department E62, Technische Universität München, 85748 Garching, Germany
- L. Naumann
- Institut für Strahlenphysik, Helmholtz-Zentrum Dresden-Rossendorf, 01314 Dresden, Germany
- K.N. Nowakowski
- Smoluchowski Institute of Physics, Jagiellonian University of Cracow, 30-059 Kraków, Poland
- M. Palka
- Smoluchowski Institute of Physics, Jagiellonian University of Cracow, 30-059 Kraków, Poland
- Y. Parpottas
- Department of Physics, University of Cyprus, 1678 Nicosia, Cyprus
- V. Pechenov
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- O. Pechenova
- Institut für Kernphysik, Goethe-Universität, 60438 Frankfurt, Germany
- O. Petukhov
- Institute for Nuclear Research, Russian Academy of Science, 117312 Moscow, Russia
- J. Pietraszko
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- W. Przygoda
- Smoluchowski Institute of Physics, Jagiellonian University of Cracow, 30-059 Kraków, Poland
- S. Ramos
- LIP-Laboratório de Instrumentação e Física Experimental de Partículas, 3004-516 Coimbra, Portugal
- B. Ramstein
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, F-91406 Orsay Cedex, France
- A. Reshetin
- Institute for Nuclear Research, Russian Academy of Science, 117312 Moscow, Russia
- P. Rodriguez-Ramos
- Nuclear Physics Institute, The Czech Academy of Sciences, 25068 Rez, Czech Republic
- P. Rosier
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, F-91406 Orsay Cedex, France
- A. Rost
- Technische Universität Darmstadt, 64289 Darmstadt, Germany
- A. Sadovsky
- Institute for Nuclear Research, Russian Academy of Science, 117312 Moscow, Russia
- P. Salabura
- Smoluchowski Institute of Physics, Jagiellonian University of Cracow, 30-059 Kraków, Poland
- T. Scheib
- Institut für Kernphysik, Goethe-Universität, 60438 Frankfurt, Germany
- H. Schuldes
- Institut für Kernphysik, Goethe-Universität, 60438 Frankfurt, Germany
- E. Schwab
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- F. Scozzi
- Technische Universität Darmstadt, 64289 Darmstadt, Germany
- F. Seck
- Technische Universität Darmstadt, 64289 Darmstadt, Germany
- P. Sellheim
- Institut für Kernphysik, Goethe-Universität, 60438 Frankfurt, Germany
- J. Siebenson
- Physik Department E62, Technische Universität München, 85748 Garching, Germany
- L. Silva
- LIP-Laboratório de Instrumentação e Física Experimental de Partículas, 3004-516 Coimbra, Portugal
- Yu.G. Sobolev
- Nuclear Physics Institute, The Czech Academy of Sciences, 25068 Rez, Czech Republic
- S. Spataro
- H. Ströbele
- Institut für Kernphysik, Goethe-Universität, 60438 Frankfurt, Germany
- J. Stroth
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- P. Strzempek
- Smoluchowski Institute of Physics, Jagiellonian University of Cracow, 30-059 Kraków, Poland
- C. Sturm
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- O. Svoboda
- Nuclear Physics Institute, The Czech Academy of Sciences, 25068 Rez, Czech Republic
- M. Szala
- Institut für Kernphysik, Goethe-Universität, 60438 Frankfurt, Germany
- P. Tlusty
- Nuclear Physics Institute, The Czech Academy of Sciences, 25068 Rez, Czech Republic
- M. Traxler
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- H. Tsertos
- Department of Physics, University of Cyprus, 1678 Nicosia, Cyprus
- E. Usenko
- Institute for Nuclear Research, Russian Academy of Science, 117312 Moscow, Russia
- V. Wagner
- Nuclear Physics Institute, The Czech Academy of Sciences, 25068 Rez, Czech Republic
- C. Wendisch
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- M.G. Wiebusch
- Institut für Kernphysik, Goethe-Universität, 60438 Frankfurt, Germany
- J. Wirth
- Physik Department E62, Technische Universität München, 85748 Garching, Germany
- Y. Zanevsky
- Joint Institute of Nuclear Research, 141980 Dubna, Russia
- P. Zumbruch
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- DOI
- https://doi.org/10.1016/j.physletb.2018.01.048
- Journal volume & issue
-
Vol. 778,
no. C
pp. 403 – 407
Abstract
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.
