Energy dependence of kaon-to-proton ratio fluctuations in central Pb+Pb collisions from √sNN=6.3 to 17.3 GeV

T. Anticic; B. Baatar; D. Barna; J. Bartke; H. Beck; L. Betev; H. Białkowska; C. Blume; M. Bogusz; B. Boimska; J. Book; M. Botje; P. Bunčić; T. Cetner; P. Christakoglou; P. Chung; O. Chvala; J. G. Cramer; V. Eckardt; Z. Fodor; P. Foka; V. Friese; M. Gaździcki; K. Grebieszkow; C. Höhne; K. Kadija; A. Karev; V. I. Kolesnikov; T. Kollegger; M. Kowalski; D. Kresan; A. Laszlo; R. Lacey; M. Van Leeuwen; M. MacKowiak; M. Makariev; A. I. Malakhov; M. Mateev; G. L. Melkumov; M. Mitrovski; St Mrówczyński; V. Nicolic; G. Pálla; A. D. Panagiotou; W. Peryt; J. Pluta; D. Prindle; F. Pühlhofer; R. Renfordt; C. Roland; G. Roland; M. Rybczyński; A. Rybicki; A. Sandoval; N. Schmitz; T. Schuster; P. Seyboth; F. Siklér; E. Skrzypczak; M. Slodkowski; G. Stefanek; R. Stock; H. Ströbele; T. Susa; M. Szuba; M. Utvić; D. Varga; M. Vassiliou; G. I. Veres; G. Vesztergombi; D. Vranić; Z. Włodarczyk; A. Wojtaszek-Szwarc

doi:10.1103/PhysRevC.83.061902

Energy dependence of kaon-to-proton ratio fluctuations in central Pb+Pb collisions from √s_NN=6.3 to 17.3 GeV

T. Anticic
, B. Baatar
, D. Barna
, J. Bartke
, H. Beck
, L. Betev
, H. Białkowska
, C. Blume
, M. Bogusz
, B. Boimska
, J. Book
, M. Botje
, P. Bunčić
, T. Cetner
, P. Christakoglou
, P. Chung
, O. Chvala
, J. G. Cramer
, V. Eckardt
, Z. Fodor

P. Foka, V. Friese, M. Gaździcki, K. Grebieszkow, C. Höhne, K. Kadija, A. Karev, V. I. Kolesnikov, T. Kollegger, M. Kowalski, D. Kresan, A. Laszlo, R. Lacey, M. Van Leeuwen, M. MacKowiak, M. Makariev, A. I. Malakhov, M. Mateev, G. L. Melkumov, M. Mitrovski, St Mrówczyński, V. Nicolic, G. Pálla, A. D. Panagiotou, W. Peryt, J. Pluta, D. Prindle, F. Pühlhofer, R. Renfordt, C. Roland, G. Roland, M. Rybczyński, A. Rybicki, A. Sandoval, N. Schmitz, T. Schuster, P. Seyboth, F. Siklér, E. Skrzypczak, M. Slodkowski, G. Stefanek, R. Stock, H. Ströbele, T. Susa, M. Szuba, M. Utvić, D. Varga, M. Vassiliou, G. I. Veres, G. Vesztergombi, D. Vranić, Z. Włodarczyk, A. Wojtaszek-Szwarc

Chemistry

Ruder Boskovic Institute
Joint Institute for Nuclear Research
Wigner Research Centre for Physics
Institute of Nuclear Physics
Goethe University Frankfurt
CERN
Institute of Nuclear Chemistry and Technology, Warsaw
Warsaw University of Technology
National Institute for Subatomic Physics
Stony Brook University
Charles University
University of Washington
Max Planck Institute for Physics (Werner Heisenberg Institute)
GSI Helmholtz Centre for Heavy Ion Research
Jan Kochanowski University in Kielce
Bulgarian Academy of Sciences
Sofia University St. Kliment Ohridski
National and Kapodistrian University of Athens
University of Marburg
Massachusetts Institute of Technology
University of Warsaw
Eötvös Loránd University

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

Kaons and protons carry large parts of two conserved quantities: strangeness and baryon number. It is argued that their correlation and thus also fluctuations are sensitive to conditions prevailing at the anticipated parton-hadron phase boundary. Fluctuations of the (K⁺+K ^-)/(p+p̄) and K⁺/p ratios have been measured for the first time by NA49 in central Pb+Pb collisions at five CERN Super Proton Synchrotron energies between √s_NN=6.3 and √s _NN=17.3 GeV. Both ratios exhibit a change of sign in σ_dyn, a measure of nonstatistical fluctuations, around √s_NN=8 GeV. Below this energy, σ_dyn is positive, indicating higher fluctuation compared to a mixed event background sample, while for higher energies, σ_dyn is negative, indicating correlated emission of kaons and protons. The results are compared to hadronic transport model calculations which fail to reproduce the energy dependence.

Original language	English
Article number	061902
Journal	Physical Review C - Nuclear Physics
Volume	83
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.83.061902
State	Published - Jun 15 2011

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10.1103/PhysRevC.83.061902

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Anticic, T., Baatar, B., Barna, D., Bartke, J., Beck, H., Betev, L., Białkowska, H., Blume, C., Bogusz, M., Boimska, B., Book, J., Botje, M., Bunčić, P., Cetner, T., Christakoglou, P., Chung, P., Chvala, O., Cramer, J. G., Eckardt, V., ... Wojtaszek-Szwarc, A. (2011). Energy dependence of kaon-to-proton ratio fluctuations in central Pb+Pb collisions from √s_NN=6.3 to 17.3 GeV. Physical Review C - Nuclear Physics, 83(6), Article 061902. https://doi.org/10.1103/PhysRevC.83.061902

@article{f4ccfc12b410498abc36ff47517a71d3,

title = "Energy dependence of kaon-to-proton ratio fluctuations in central Pb+Pb collisions from √sNN=6.3 to 17.3 GeV",

abstract = "Kaons and protons carry large parts of two conserved quantities: strangeness and baryon number. It is argued that their correlation and thus also fluctuations are sensitive to conditions prevailing at the anticipated parton-hadron phase boundary. Fluctuations of the (K++K -)/(p+{\=p}) and K+/p ratios have been measured for the first time by NA49 in central Pb+Pb collisions at five CERN Super Proton Synchrotron energies between √sNN=6.3 and √s NN=17.3 GeV. Both ratios exhibit a change of sign in σdyn, a measure of nonstatistical fluctuations, around √sNN=8 GeV. Below this energy, σdyn is positive, indicating higher fluctuation compared to a mixed event background sample, while for higher energies, σdyn is negative, indicating correlated emission of kaons and protons. The results are compared to hadronic transport model calculations which fail to reproduce the energy dependence.",

author = "T. Anticic and B. Baatar and D. Barna and J. Bartke and H. Beck and L. Betev and H. Bia{\l}kowska and C. Blume and M. Bogusz and B. Boimska and J. Book and M. Botje and P. Bun{\v c}i{\'c} and T. Cetner and P. Christakoglou and P. Chung and O. Chvala and Cramer, \{J. G.\} and V. Eckardt and Z. Fodor and P. Foka and V. Friese and M. Ga{\'z}dzicki and K. Grebieszkow and C. H{\"o}hne and K. Kadija and A. Karev and Kolesnikov, \{V. I.\} and T. Kollegger and M. Kowalski and D. Kresan and A. Laszlo and R. Lacey and \{Van Leeuwen\}, M. and M. MacKowiak and M. Makariev and Malakhov, \{A. I.\} and M. Mateev and Melkumov, \{G. L.\} and M. Mitrovski and St Mr{\'o}wczy{\'n}ski and V. Nicolic and G. P{\'a}lla and Panagiotou, \{A. D.\} and W. Peryt and J. Pluta and D. Prindle and F. P{\"u}hlhofer and R. Renfordt and C. Roland and G. Roland and M. Rybczy{\'n}ski and A. Rybicki and A. Sandoval and N. Schmitz and T. Schuster and P. Seyboth and F. Sikl{\'e}r and E. Skrzypczak and M. Slodkowski and G. Stefanek and R. Stock and H. Str{\"o}bele and T. Susa and M. Szuba and M. Utvi{\'c} and D. Varga and M. Vassiliou and Veres, \{G. I.\} and G. Vesztergombi and D. Vrani{\'c} and Z. W{\l}odarczyk and A. Wojtaszek-Szwarc",

year = "2011",

month = jun,

day = "15",

doi = "10.1103/PhysRevC.83.061902",

language = "English",

volume = "83",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "6",

}

Anticic, T, Baatar, B, Barna, D, Bartke, J, Beck, H, Betev, L, Białkowska, H, Blume, C, Bogusz, M, Boimska, B, Book, J, Botje, M, Bunčić, P, Cetner, T, Christakoglou, P, Chung, P, Chvala, O, Cramer, JG, Eckardt, V, Fodor, Z, Foka, P, Friese, V, Gaździcki, M, Grebieszkow, K, Höhne, C, Kadija, K, Karev, A, Kolesnikov, VI, Kollegger, T, Kowalski, M, Kresan, D, Laszlo, A, Lacey, R, Van Leeuwen, M, MacKowiak, M, Makariev, M, Malakhov, AI, Mateev, M, Melkumov, GL, Mitrovski, M, Mrówczyński, S, Nicolic, V, Pálla, G, Panagiotou, AD, Peryt, W, Pluta, J, Prindle, D, Pühlhofer, F, Renfordt, R, Roland, C, Roland, G, Rybczyński, M, Rybicki, A, Sandoval, A, Schmitz, N, Schuster, T, Seyboth, P, Siklér, F, Skrzypczak, E, Slodkowski, M, Stefanek, G, Stock, R, Ströbele, H, Susa, T, Szuba, M, Utvić, M, Varga, D, Vassiliou, M, Veres, GI, Vesztergombi, G, Vranić, D, Włodarczyk, Z & Wojtaszek-Szwarc, A 2011, 'Energy dependence of kaon-to-proton ratio fluctuations in central Pb+Pb collisions from √s_NN=6.3 to 17.3 GeV', Physical Review C - Nuclear Physics, vol. 83, no. 6, 061902. https://doi.org/10.1103/PhysRevC.83.061902

TY - JOUR

T1 - Energy dependence of kaon-to-proton ratio fluctuations in central Pb+Pb collisions from √sNN=6.3 to 17.3 GeV

AU - Anticic, T.

AU - Baatar, B.

AU - Barna, D.

AU - Bartke, J.

AU - Beck, H.

AU - Betev, L.

AU - Białkowska, H.

AU - Blume, C.

AU - Bogusz, M.

AU - Boimska, B.

AU - Book, J.

AU - Botje, M.

AU - Bunčić, P.

AU - Cetner, T.

AU - Christakoglou, P.

AU - Chung, P.

AU - Chvala, O.

AU - Cramer, J. G.

AU - Eckardt, V.

AU - Fodor, Z.

AU - Foka, P.

AU - Friese, V.

AU - Gaździcki, M.

AU - Grebieszkow, K.

AU - Höhne, C.

AU - Kadija, K.

AU - Karev, A.

AU - Kolesnikov, V. I.

AU - Kollegger, T.

AU - Kowalski, M.

AU - Kresan, D.

AU - Laszlo, A.

AU - Lacey, R.

AU - Van Leeuwen, M.

AU - MacKowiak, M.

AU - Makariev, M.

AU - Malakhov, A. I.

AU - Mateev, M.

AU - Melkumov, G. L.

AU - Mitrovski, M.

AU - Mrówczyński, St

AU - Nicolic, V.

AU - Pálla, G.

AU - Panagiotou, A. D.

AU - Peryt, W.

AU - Pluta, J.

AU - Prindle, D.

AU - Pühlhofer, F.

AU - Renfordt, R.

AU - Roland, C.

AU - Roland, G.

AU - Rybczyński, M.

AU - Rybicki, A.

AU - Sandoval, A.

AU - Schmitz, N.

AU - Schuster, T.

AU - Seyboth, P.

AU - Siklér, F.

AU - Skrzypczak, E.

AU - Slodkowski, M.

AU - Stefanek, G.

AU - Stock, R.

AU - Ströbele, H.

AU - Susa, T.

AU - Szuba, M.

AU - Utvić, M.

AU - Varga, D.

AU - Vassiliou, M.

AU - Veres, G. I.

AU - Vesztergombi, G.

AU - Vranić, D.

AU - Włodarczyk, Z.

AU - Wojtaszek-Szwarc, A.

PY - 2011/6/15

Y1 - 2011/6/15

N2 - Kaons and protons carry large parts of two conserved quantities: strangeness and baryon number. It is argued that their correlation and thus also fluctuations are sensitive to conditions prevailing at the anticipated parton-hadron phase boundary. Fluctuations of the (K++K -)/(p+p̄) and K+/p ratios have been measured for the first time by NA49 in central Pb+Pb collisions at five CERN Super Proton Synchrotron energies between √sNN=6.3 and √s NN=17.3 GeV. Both ratios exhibit a change of sign in σdyn, a measure of nonstatistical fluctuations, around √sNN=8 GeV. Below this energy, σdyn is positive, indicating higher fluctuation compared to a mixed event background sample, while for higher energies, σdyn is negative, indicating correlated emission of kaons and protons. The results are compared to hadronic transport model calculations which fail to reproduce the energy dependence.

AB - Kaons and protons carry large parts of two conserved quantities: strangeness and baryon number. It is argued that their correlation and thus also fluctuations are sensitive to conditions prevailing at the anticipated parton-hadron phase boundary. Fluctuations of the (K++K -)/(p+p̄) and K+/p ratios have been measured for the first time by NA49 in central Pb+Pb collisions at five CERN Super Proton Synchrotron energies between √sNN=6.3 and √s NN=17.3 GeV. Both ratios exhibit a change of sign in σdyn, a measure of nonstatistical fluctuations, around √sNN=8 GeV. Below this energy, σdyn is positive, indicating higher fluctuation compared to a mixed event background sample, while for higher energies, σdyn is negative, indicating correlated emission of kaons and protons. The results are compared to hadronic transport model calculations which fail to reproduce the energy dependence.

UR - https://www.scopus.com/pages/publications/79961108638

U2 - 10.1103/PhysRevC.83.061902

DO - 10.1103/PhysRevC.83.061902

M3 - Article

AN - SCOPUS:79961108638

SN - 0556-2813

VL - 83

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 6

M1 - 061902

ER -

Energy dependence of kaon-to-proton ratio fluctuations in central Pb+Pb collisions from √s_NN=6.3 to 17.3 GeV

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