Influence of φ mesons on negative kaons in Ni + Ni collisions at 1.91A GeV beam energy INFLUENCE of φ MESONS on NEGATIVE KAONS in ⋯ K. PIASECKI et al.

K. Piasecki, N. Herrmann, R. Averbeck, A. Andronic, V. Barret, Z. Basrak, N. Bastid, M. L. Benabderrahmane, M. Berger, P. Buehler, M. Cargnelli, R. Čaplar, P. Crochet, O. Czerwiakowa, I. Deppner, P. Dupieux, M. DŽelalija, L. Fabbietti, Z. Fodor, P. Gasik & 46 others I. Gašparić, Y. Grishkin, O. N. Hartmann, K. D. Hildenbrand, Byungsik Hong, T. I. Kang, J. Kecskemeti, Y. J. Kim, M. Kirejczyk, M. Kiš, P. Koczon, R. Kotte, A. Lebedev, Y. Leifels, A. Le Fèvre, J. L. Liu, X. Lopez, V. Manko, J. Marton, T. Matulewicz, R. Münzer, M. Petrovici, F. Rami, A. Reischl, W. Reisdorf, M. S. Ryu, P. Schmidt, A. Schüttauf, Z. Seres, B. Sikora, K. S. Sim, V. Simion, K. Siwek-Wilczyńska, V. Smolyankin, K. Suzuki, Z. Tymiński, P. Wagner, I. Weber, E. Widmann, K. Wis̈niewski, Z. G. Xiao, I. Yushmanov, Y. Zhang, A. Zhilin, V. Zinyuk, J. Zmeskal

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Abstract

φ and K- mesons from Ni+Ni collisions at the beam energy of 1.91A GeV have been measured by the FOPI spectrometer, with a trigger selecting central and semicentral events amounting to 52% of the total cross section. The phase-space distributions, and the total yield of K-, as well as the kinetic energy distribution and the total yield of φ mesons are presented. The φ/ K- ratio is found to be 0.44±0.07(stat)-0.10+0.16(syst), meaning that about 22% of K- mesons originate from the decays of φ mesons, occurring mostly in vacuum. The inverse slopes of direct kaons are up to about 15 MeV larger than the ones extracted within the one-source model, signaling that a considerable share of gap between the slopes of K+ and K- could be explained by the contribution of φ mesons to negative kaons.

Original languageEnglish
Article number054904
JournalPhysical Review C - Nuclear Physics
Volume91
Issue number5
DOIs
Publication statusPublished - 2015 May 13

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kaons
mesons
collisions
energy
slopes
energy distribution
actuators
kinetic energy
spectrometers
vacuum
cross sections
decay

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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Influence of φ mesons on negative kaons in Ni + Ni collisions at 1.91A GeV beam energy INFLUENCE of φ MESONS on NEGATIVE KAONS in ⋯ K. PIASECKI et al. / Piasecki, K.; Herrmann, N.; Averbeck, R.; Andronic, A.; Barret, V.; Basrak, Z.; Bastid, N.; Benabderrahmane, M. L.; Berger, M.; Buehler, P.; Cargnelli, M.; Čaplar, R.; Crochet, P.; Czerwiakowa, O.; Deppner, I.; Dupieux, P.; DŽelalija, M.; Fabbietti, L.; Fodor, Z.; Gasik, P.; Gašparić, I.; Grishkin, Y.; Hartmann, O. N.; Hildenbrand, K. D.; Hong, Byungsik; Kang, T. I.; Kecskemeti, J.; Kim, Y. J.; Kirejczyk, M.; Kiš, M.; Koczon, P.; Kotte, R.; Lebedev, A.; Leifels, Y.; Le Fèvre, A.; Liu, J. L.; Lopez, X.; Manko, V.; Marton, J.; Matulewicz, T.; Münzer, R.; Petrovici, M.; Rami, F.; Reischl, A.; Reisdorf, W.; Ryu, M. S.; Schmidt, P.; Schüttauf, A.; Seres, Z.; Sikora, B.; Sim, K. S.; Simion, V.; Siwek-Wilczyńska, K.; Smolyankin, V.; Suzuki, K.; Tymiński, Z.; Wagner, P.; Weber, I.; Widmann, E.; Wis̈niewski, K.; Xiao, Z. G.; Yushmanov, I.; Zhang, Y.; Zhilin, A.; Zinyuk, V.; Zmeskal, J.

In: Physical Review C - Nuclear Physics, Vol. 91, No. 5, 054904, 13.05.2015.

Research output: Contribution to journalArticle

Piasecki, K, Herrmann, N, Averbeck, R, Andronic, A, Barret, V, Basrak, Z, Bastid, N, Benabderrahmane, ML, Berger, M, Buehler, P, Cargnelli, M, Čaplar, R, Crochet, P, Czerwiakowa, O, Deppner, I, Dupieux, P, DŽelalija, M, Fabbietti, L, Fodor, Z, Gasik, P, Gašparić, I, Grishkin, Y, Hartmann, ON, Hildenbrand, KD, Hong, B, Kang, TI, Kecskemeti, J, Kim, YJ, Kirejczyk, M, Kiš, M, Koczon, P, Kotte, R, Lebedev, A, Leifels, Y, Le Fèvre, A, Liu, JL, Lopez, X, Manko, V, Marton, J, Matulewicz, T, Münzer, R, Petrovici, M, Rami, F, Reischl, A, Reisdorf, W, Ryu, MS, Schmidt, P, Schüttauf, A, Seres, Z, Sikora, B, Sim, KS, Simion, V, Siwek-Wilczyńska, K, Smolyankin, V, Suzuki, K, Tymiński, Z, Wagner, P, Weber, I, Widmann, E, Wis̈niewski, K, Xiao, ZG, Yushmanov, I, Zhang, Y, Zhilin, A, Zinyuk, V & Zmeskal, J 2015, 'Influence of φ mesons on negative kaons in Ni + Ni collisions at 1.91A GeV beam energy INFLUENCE of φ MESONS on NEGATIVE KAONS in ⋯ K. PIASECKI et al.', Physical Review C - Nuclear Physics, vol. 91, no. 5, 054904. https://doi.org/10.1103/PhysRevC.91.054904
Piasecki, K. ; Herrmann, N. ; Averbeck, R. ; Andronic, A. ; Barret, V. ; Basrak, Z. ; Bastid, N. ; Benabderrahmane, M. L. ; Berger, M. ; Buehler, P. ; Cargnelli, M. ; Čaplar, R. ; Crochet, P. ; Czerwiakowa, O. ; Deppner, I. ; Dupieux, P. ; DŽelalija, M. ; Fabbietti, L. ; Fodor, Z. ; Gasik, P. ; Gašparić, I. ; Grishkin, Y. ; Hartmann, O. N. ; Hildenbrand, K. D. ; Hong, Byungsik ; Kang, T. I. ; Kecskemeti, J. ; Kim, Y. J. ; Kirejczyk, M. ; Kiš, M. ; Koczon, P. ; Kotte, R. ; Lebedev, A. ; Leifels, Y. ; Le Fèvre, A. ; Liu, J. L. ; Lopez, X. ; Manko, V. ; Marton, J. ; Matulewicz, T. ; Münzer, R. ; Petrovici, M. ; Rami, F. ; Reischl, A. ; Reisdorf, W. ; Ryu, M. S. ; Schmidt, P. ; Schüttauf, A. ; Seres, Z. ; Sikora, B. ; Sim, K. S. ; Simion, V. ; Siwek-Wilczyńska, K. ; Smolyankin, V. ; Suzuki, K. ; Tymiński, Z. ; Wagner, P. ; Weber, I. ; Widmann, E. ; Wis̈niewski, K. ; Xiao, Z. G. ; Yushmanov, I. ; Zhang, Y. ; Zhilin, A. ; Zinyuk, V. ; Zmeskal, J. / Influence of φ mesons on negative kaons in Ni + Ni collisions at 1.91A GeV beam energy INFLUENCE of φ MESONS on NEGATIVE KAONS in ⋯ K. PIASECKI et al. In: Physical Review C - Nuclear Physics. 2015 ; Vol. 91, No. 5.
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title = "Influence of φ mesons on negative kaons in Ni + Ni collisions at 1.91A GeV beam energy INFLUENCE of φ MESONS on NEGATIVE KAONS in ⋯ K. PIASECKI et al.",
abstract = "φ and K- mesons from Ni+Ni collisions at the beam energy of 1.91A GeV have been measured by the FOPI spectrometer, with a trigger selecting central and semicentral events amounting to 52{\%} of the total cross section. The phase-space distributions, and the total yield of K-, as well as the kinetic energy distribution and the total yield of φ mesons are presented. The φ/ K- ratio is found to be 0.44±0.07(stat)-0.10+0.16(syst), meaning that about 22{\%} of K- mesons originate from the decays of φ mesons, occurring mostly in vacuum. The inverse slopes of direct kaons are up to about 15 MeV larger than the ones extracted within the one-source model, signaling that a considerable share of gap between the slopes of K+ and K- could be explained by the contribution of φ mesons to negative kaons.",
author = "K. Piasecki and N. Herrmann and R. Averbeck and A. Andronic and V. Barret and Z. Basrak and N. Bastid and Benabderrahmane, {M. L.} and M. Berger and P. Buehler and M. Cargnelli and R. Čaplar and P. Crochet and O. Czerwiakowa and I. Deppner and P. Dupieux and M. DŽelalija and L. Fabbietti and Z. Fodor and P. Gasik and I. Gašparić and Y. Grishkin and Hartmann, {O. N.} and Hildenbrand, {K. D.} and Byungsik Hong and Kang, {T. I.} and J. Kecskemeti and Kim, {Y. J.} and M. Kirejczyk and M. Kiš and P. Koczon and R. Kotte and A. Lebedev and Y. Leifels and {Le F{\`e}vre}, A. and Liu, {J. L.} and X. Lopez and V. Manko and J. Marton and T. Matulewicz and R. M{\"u}nzer and M. Petrovici and F. Rami and A. Reischl and W. Reisdorf and Ryu, {M. S.} and P. Schmidt and A. Sch{\"u}ttauf and Z. Seres and B. Sikora and Sim, {K. S.} and V. Simion and K. Siwek-Wilczyńska and V. Smolyankin and K. Suzuki and Z. Tymiński and P. Wagner and I. Weber and E. Widmann and K. Wis̈niewski and Xiao, {Z. G.} and I. Yushmanov and Y. Zhang and A. Zhilin and V. Zinyuk and J. Zmeskal",
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T1 - Influence of φ mesons on negative kaons in Ni + Ni collisions at 1.91A GeV beam energy INFLUENCE of φ MESONS on NEGATIVE KAONS in ⋯ K. PIASECKI et al.

AU - Piasecki, K.

AU - Herrmann, N.

AU - Averbeck, R.

AU - Andronic, A.

AU - Barret, V.

AU - Basrak, Z.

AU - Bastid, N.

AU - Benabderrahmane, M. L.

AU - Berger, M.

AU - Buehler, P.

AU - Cargnelli, M.

AU - Čaplar, R.

AU - Crochet, P.

AU - Czerwiakowa, O.

AU - Deppner, I.

AU - Dupieux, P.

AU - DŽelalija, M.

AU - Fabbietti, L.

AU - Fodor, Z.

AU - Gasik, P.

AU - Gašparić, I.

AU - Grishkin, Y.

AU - Hartmann, O. N.

AU - Hildenbrand, K. D.

AU - Hong, Byungsik

AU - Kang, T. I.

AU - Kecskemeti, J.

AU - Kim, Y. J.

AU - Kirejczyk, M.

AU - Kiš, M.

AU - Koczon, P.

AU - Kotte, R.

AU - Lebedev, A.

AU - Leifels, Y.

AU - Le Fèvre, A.

AU - Liu, J. L.

AU - Lopez, X.

AU - Manko, V.

AU - Marton, J.

AU - Matulewicz, T.

AU - Münzer, R.

AU - Petrovici, M.

AU - Rami, F.

AU - Reischl, A.

AU - Reisdorf, W.

AU - Ryu, M. S.

AU - Schmidt, P.

AU - Schüttauf, A.

AU - Seres, Z.

AU - Sikora, B.

AU - Sim, K. S.

AU - Simion, V.

AU - Siwek-Wilczyńska, K.

AU - Smolyankin, V.

AU - Suzuki, K.

AU - Tymiński, Z.

AU - Wagner, P.

AU - Weber, I.

AU - Widmann, E.

AU - Wis̈niewski, K.

AU - Xiao, Z. G.

AU - Yushmanov, I.

AU - Zhang, Y.

AU - Zhilin, A.

AU - Zinyuk, V.

AU - Zmeskal, J.

PY - 2015/5/13

Y1 - 2015/5/13

N2 - φ and K- mesons from Ni+Ni collisions at the beam energy of 1.91A GeV have been measured by the FOPI spectrometer, with a trigger selecting central and semicentral events amounting to 52% of the total cross section. The phase-space distributions, and the total yield of K-, as well as the kinetic energy distribution and the total yield of φ mesons are presented. The φ/ K- ratio is found to be 0.44±0.07(stat)-0.10+0.16(syst), meaning that about 22% of K- mesons originate from the decays of φ mesons, occurring mostly in vacuum. The inverse slopes of direct kaons are up to about 15 MeV larger than the ones extracted within the one-source model, signaling that a considerable share of gap between the slopes of K+ and K- could be explained by the contribution of φ mesons to negative kaons.

AB - φ and K- mesons from Ni+Ni collisions at the beam energy of 1.91A GeV have been measured by the FOPI spectrometer, with a trigger selecting central and semicentral events amounting to 52% of the total cross section. The phase-space distributions, and the total yield of K-, as well as the kinetic energy distribution and the total yield of φ mesons are presented. The φ/ K- ratio is found to be 0.44±0.07(stat)-0.10+0.16(syst), meaning that about 22% of K- mesons originate from the decays of φ mesons, occurring mostly in vacuum. The inverse slopes of direct kaons are up to about 15 MeV larger than the ones extracted within the one-source model, signaling that a considerable share of gap between the slopes of K+ and K- could be explained by the contribution of φ mesons to negative kaons.

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