European Physical Journal C: Particles and Fields (Oct 2020)
Measurements of $$\pi ^-$$ π - production in $$^7$$ 7 Be + $$^9$$ 9 Be collisions at beam momenta from 19A to 150 $$A\,\text{ GeV }\!/\!c$$ A GeV / c in the NA61/SHINE experiment at the CERN SPS
- A. Acharya,
- H. Adhikary,
- A. Aduszkiewicz,
- K. K. Allison,
- E. V. Andronov,
- T. Antićić,
- V. Babkin,
- M. Baszczyk,
- S. Bhosale,
- A. Blondel,
- M. Bogomilov,
- A. Brandin,
- A. Bravar,
- W. Bryliński,
- J. Brzychczyk,
- M. Buryakov,
- O. Busygina,
- A. Bzdak,
- H. Cherif,
- M. Ćirković,
- M. Csanad,
- J. Cybowska,
- T. Czopowicz,
- A. Damyanova,
- N. Davis,
- M. Deliyergiyev,
- M. Deveaux,
- A. Dmitriev,
- W. Dominik,
- P. Dorosz,
- J. Dumarchez,
- R. Engel,
- G. A. Feofilov,
- L. Fields,
- Z. Fodor,
- A. Garibov,
- M. Gaździcki,
- O. Golosov,
- V. Golovatyuk,
- M. Golubeva,
- K. Grebieszkow,
- F. Guber,
- A. Haesler,
- S. N. Igolkin,
- S. Ilieva,
- A. Ivashkin,
- S. R. Johnson,
- K. Kadija,
- N. Kargin,
- E. Kashirin,
- M. Kiełbowicz,
- V. A. Kireyeu,
- V. Klochkov,
- V. I. Kolesnikov,
- D. Kolev,
- A. Korzenev,
- V. N. Kovalenko,
- S. Kowalski,
- M. Koziel,
- A. Krasnoperov,
- W. Kucewicz,
- M. Kuich,
- A. Kurepin,
- D. Larsen,
- A. László,
- T. V. Lazareva,
- M. Lewicki,
- K. Łojek,
- V. V. Lyubushkin,
- M. Maćkowiak-Pawłowska,
- Z. Majka,
- B. Maksiak,
- A. I. Malakhov,
- A. Marcinek,
- A. D. Marino,
- K. Marton,
- H.-J. Mathes,
- T. Matulewicz,
- V. Matveev,
- G. L. Melkumov,
- A. O. Merzlaya,
- B. Messerly,
- Ł. Mik,
- S. Morozov,
- S. Mrówczyński,
- Y. Nagai,
- M. Naskręt,
- V. Ozvenchuk,
- V. Paolone,
- O. Petukhov,
- R. Płaneta,
- P. Podlaski,
- B. A. Popov,
- B. Porfy,
- M. Posiadała-Zezula,
- D. S. Prokhorova,
- D. Pszczel,
- S. Puławski,
- J. Puzović,
- M. Ravonel,
- R. Renfordt,
- D. Röhrich,
- E. Rondio,
- M. Roth,
- B. T. Rumberger,
- M. Rumyantsev,
- A. Rustamov,
- M. Rybczynski,
- A. Rybicki,
- S. Sadhu,
- A. Sadovsky,
- K. Schmidt,
- I. Selyuzhenkov,
- A. Yu. Seryakov,
- P. Seyboth,
- M. Słodkowski,
- P. Staszel,
- G. Stefanek,
- J. Stepaniak,
- M. Strikhanov,
- H. Ströbele,
- T. Šuša,
- A. Taranenko,
- A. Tefelska,
- D. Tefelski,
- V. Tereshchenko,
- A. Toia,
- R. Tsenov,
- L. Turko,
- R. Ulrich,
- M. Unger,
- D. Uzhva,
- F. F. Valiev,
- D. Veberič,
- V. V. Vechernin,
- A. Wickremasinghe,
- Z. Włodarczyk,
- K. Wojcik,
- O. Wyszyński,
- E. D. Zimmerman,
- R. Zwaska
Affiliations
- A. Acharya
- Jan Kochanowski University in Kielce
- H. Adhikary
- Jan Kochanowski University in Kielce
- A. Aduszkiewicz
- University of Warsaw
- K. K. Allison
- University of Colorado
- E. V. Andronov
- St. Petersburg State University
- T. Antićić
- Ruđer Bošković Institute
- V. Babkin
- Joint Institute for Nuclear Research
- M. Baszczyk
- AGH, University of Science and Technology
- S. Bhosale
- Institute of Nuclear Physics, Polish Academy of Sciences
- A. Blondel
- LPNHE, University of Paris VI and VII
- M. Bogomilov
- Faculty of Physics, University of Sofia
- A. Brandin
- National Research Nuclear University (Moscow Engineering Physics Institute)
- A. Bravar
- University of Geneva
- W. Bryliński
- Warsaw University of Technology
- J. Brzychczyk
- Jagiellonian University
- M. Buryakov
- Joint Institute for Nuclear Research
- O. Busygina
- Institute for Nuclear Research
- A. Bzdak
- AGH, University of Science and Technology
- H. Cherif
- University of Frankfurt
- M. Ćirković
- University of Belgrade
- M. Csanad
- Wigner Research Centre for Physics of the Hungarian Academy of Sciences
- J. Cybowska
- Warsaw University of Technology
- T. Czopowicz
- Jan Kochanowski University in Kielce
- A. Damyanova
- University of Geneva
- N. Davis
- Institute of Nuclear Physics, Polish Academy of Sciences
- M. Deliyergiyev
- Jan Kochanowski University in Kielce
- M. Deveaux
- University of Frankfurt
- A. Dmitriev
- Joint Institute for Nuclear Research
- W. Dominik
- University of Warsaw
- P. Dorosz
- AGH, University of Science and Technology
- J. Dumarchez
- LPNHE, University of Paris VI and VII
- R. Engel
- Karlsruhe Institute of Technology
- G. A. Feofilov
- St. Petersburg State University
- L. Fields
- Fermilab
- Z. Fodor
- Wigner Research Centre for Physics of the Hungarian Academy of Sciences
- A. Garibov
- National Nuclear Research Center
- M. Gaździcki
- University of Frankfurt
- O. Golosov
- National Research Nuclear University (Moscow Engineering Physics Institute)
- V. Golovatyuk
- Joint Institute for Nuclear Research
- M. Golubeva
- Institute for Nuclear Research
- K. Grebieszkow
- Warsaw University of Technology
- F. Guber
- Institute for Nuclear Research
- A. Haesler
- University of Geneva
- S. N. Igolkin
- St. Petersburg State University
- S. Ilieva
- Faculty of Physics, University of Sofia
- A. Ivashkin
- Institute for Nuclear Research
- S. R. Johnson
- University of Colorado
- K. Kadija
- Ruđer Bošković Institute
- N. Kargin
- National Research Nuclear University (Moscow Engineering Physics Institute)
- E. Kashirin
- National Research Nuclear University (Moscow Engineering Physics Institute)
- M. Kiełbowicz
- Institute of Nuclear Physics, Polish Academy of Sciences
- V. A. Kireyeu
- Joint Institute for Nuclear Research
- V. Klochkov
- University of Frankfurt
- V. I. Kolesnikov
- Joint Institute for Nuclear Research
- D. Kolev
- Faculty of Physics, University of Sofia
- A. Korzenev
- University of Geneva
- V. N. Kovalenko
- St. Petersburg State University
- S. Kowalski
- University of Silesia
- M. Koziel
- University of Frankfurt
- A. Krasnoperov
- Joint Institute for Nuclear Research
- W. Kucewicz
- AGH, University of Science and Technology
- M. Kuich
- University of Warsaw
- A. Kurepin
- Institute for Nuclear Research
- D. Larsen
- Jagiellonian University
- A. László
- Wigner Research Centre for Physics of the Hungarian Academy of Sciences
- T. V. Lazareva
- St. Petersburg State University
- M. Lewicki
- University of Wrocław
- K. Łojek
- Jagiellonian University
- V. V. Lyubushkin
- Joint Institute for Nuclear Research
- M. Maćkowiak-Pawłowska
- Warsaw University of Technology
- Z. Majka
- Jagiellonian University
- B. Maksiak
- National Centre for Nuclear Research
- A. I. Malakhov
- Joint Institute for Nuclear Research
- A. Marcinek
- Institute of Nuclear Physics, Polish Academy of Sciences
- A. D. Marino
- University of Colorado
- K. Marton
- Wigner Research Centre for Physics of the Hungarian Academy of Sciences
- H.-J. Mathes
- Karlsruhe Institute of Technology
- T. Matulewicz
- University of Warsaw
- V. Matveev
- Joint Institute for Nuclear Research
- G. L. Melkumov
- Joint Institute for Nuclear Research
- A. O. Merzlaya
- Jagiellonian University
- B. Messerly
- University of Pittsburgh
- Ł. Mik
- AGH, University of Science and Technology
- S. Morozov
- Institute for Nuclear Research
- S. Mrówczyński
- Jan Kochanowski University in Kielce
- Y. Nagai
- University of Colorado
- M. Naskręt
- University of Wrocław
- V. Ozvenchuk
- Institute of Nuclear Physics, Polish Academy of Sciences
- V. Paolone
- University of Pittsburgh
- O. Petukhov
- Institute for Nuclear Research
- R. Płaneta
- Jagiellonian University
- P. Podlaski
- University of Warsaw
- B. A. Popov
- LPNHE, University of Paris VI and VII
- B. Porfy
- Wigner Research Centre for Physics of the Hungarian Academy of Sciences
- M. Posiadała-Zezula
- University of Warsaw
- D. S. Prokhorova
- St. Petersburg State University
- D. Pszczel
- National Centre for Nuclear Research
- S. Puławski
- University of Silesia
- J. Puzović
- University of Belgrade
- M. Ravonel
- University of Geneva
- R. Renfordt
- University of Frankfurt
- D. Röhrich
- University of Bergen
- E. Rondio
- National Centre for Nuclear Research
- M. Roth
- Karlsruhe Institute of Technology
- B. T. Rumberger
- University of Colorado
- M. Rumyantsev
- Joint Institute for Nuclear Research
- A. Rustamov
- National Nuclear Research Center
- M. Rybczynski
- Jan Kochanowski University in Kielce
- A. Rybicki
- Institute of Nuclear Physics, Polish Academy of Sciences
- S. Sadhu
- Jan Kochanowski University in Kielce
- A. Sadovsky
- Institute for Nuclear Research
- K. Schmidt
- University of Silesia
- I. Selyuzhenkov
- National Research Nuclear University (Moscow Engineering Physics Institute)
- A. Yu. Seryakov
- St. Petersburg State University
- P. Seyboth
- Jan Kochanowski University in Kielce
- M. Słodkowski
- Warsaw University of Technology
- P. Staszel
- Jagiellonian University
- G. Stefanek
- Jan Kochanowski University in Kielce
- J. Stepaniak
- National Centre for Nuclear Research
- M. Strikhanov
- National Research Nuclear University (Moscow Engineering Physics Institute)
- H. Ströbele
- University of Frankfurt
- T. Šuša
- Ruđer Bošković Institute
- A. Taranenko
- National Research Nuclear University (Moscow Engineering Physics Institute)
- A. Tefelska
- Warsaw University of Technology
- D. Tefelski
- Warsaw University of Technology
- V. Tereshchenko
- Joint Institute for Nuclear Research
- A. Toia
- University of Frankfurt
- R. Tsenov
- Faculty of Physics, University of Sofia
- L. Turko
- University of Wrocław
- R. Ulrich
- Karlsruhe Institute of Technology
- M. Unger
- Karlsruhe Institute of Technology
- D. Uzhva
- St. Petersburg State University
- F. F. Valiev
- St. Petersburg State University
- D. Veberič
- Karlsruhe Institute of Technology
- V. V. Vechernin
- St. Petersburg State University
- A. Wickremasinghe
- Fermilab
- Z. Włodarczyk
- Jan Kochanowski University in Kielce
- K. Wojcik
- University of Silesia
- O. Wyszyński
- Jan Kochanowski University in Kielce
- E. D. Zimmerman
- University of Colorado
- R. Zwaska
- Fermilab
- DOI
- https://doi.org/10.1140/epjc/s10052-020-08514-6
- Journal volume & issue
-
Vol. 80,
no. 10
pp. 1 – 21
Abstract
Abstract The NA61/SHINE collaboration studies at the CERN Super Proton Synchrotron (SPS) the onset of deconfinement in hadronic matter by the measurement of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents results on inclusive double-differential spectra and mean multiplicities of $$\pi ^{-}$$ π - mesons produced in the 5% most central $$^7$$ 7 Be + $$^9$$ 9 Be collisions at beam momenta of 19A, 30A, 40A, 75A and 150 $$A\,\text{ GeV }\!/\!c$$ A GeV / c obtained by the so-called $$h^-$$ h - method which does not require any particle identification. The shape of the transverse mass spectra differs from the shapes measured in central Pb + Pb collisions and inelastic p+p interactions. The normalized width of the rapidity distribution decreases with increasing collision energy and is in between the results for inelastic nucleon–nucleon and central Pb + Pb collisions. The mean multiplicity of pions per wounded nucleon in central $$^7$$ 7 Be + $$^9$$ 9 Be collisions is close to that in central Pb + Pb collisions up to 75 $$A\,\text{ GeV }\!/\!c$$ A GeV / c . However, at the top SPS energy the result lies between those for nucleon–nucleon and Pb + Pb interactions. The results are discussed in the context of predictions for the onset of deconfinement at the CERN SPS collision energies.