Phase-space dependence of particle-ratio fluctuations in Pb+Pb collisions from 20A to 158A GeV beam energy

A novel approach, the identity method, was used for particle identification and the study of fluctuations of particle yield ratios in Pb+Pb collisions at the CERN Super Proton Synchrotron (SPS). This procedure allows to unfold the moments of the unknown multiplicity distributions of protons (p), kao...

Descripción completa

Detalles Bibliográficos
Autores principales: Anticic, T., Baatar, B., Barna, D., Bartke, J., Beck, H., Betev, L., Bialkowska, H., Blume, C., Boimska, B., Book, J., Botje, M., Buncic, P., Christakoglou, P., Chung, P., Chvala, O., Cramer, J., Eckardt, V., Fodor, Z., Foka, P., Friese, V., Gazdzicki, M., Grebieszkow, K., Hohne, C., Kadija, K., Karev, A., Kolesnikov, V., Kowalski, M., Kresan, D., Laszlo, A., Lacey, R., van Leeuwen, M., Mackowiak-Pawlowska, M., Makariev, M., Malakhov, A., Melkumov, G., Mitrovski, M., Mrowczynski, S., Palla, G., Panagiotou, A., Peryt, W., Pluta, J., Prindle, D., Puhlhofer, F., Renfordt, R., Roland, C., Roland, G., Rybczynski, M., Rybicki, A., Sandoval, A., Rustamov, A., Schmitz, N., Schuster, T., Seyboth, P., Sikler, F., Skrzypczak, E., Slodkowski, M., Stefanek, G., Stock, R., Strobele, H., Susa, T., Szuba, M., Varga, D., Vassiliou, M., Veres, G., Vesztergombi, G., Vranic, D., Wlodarczyk, Z., Wojtaszek-Szwarc, A.
Lenguaje:eng
Publicado: 2013
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1103/PhysRevC.89.054902
http://cds.cern.ch/record/1610395
_version_ 1780932016490938368
author Anticic, T.
Baatar, B.
Barna, D.
Bartke, J.
Beck, H.
Betev, L.
Bialkowska, H.
Blume, C.
Boimska, B.
Book, J.
Botje, M.
Buncic, P.
Christakoglou, P.
Chung, P.
Chvala, O.
Cramer, J.
Eckardt, V.
Fodor, Z.
Foka, P.
Friese, V.
Gazdzicki, M.
Grebieszkow, K.
Hohne, C.
Kadija, K.
Karev, A.
Kolesnikov, V.
Kowalski, M.
Kresan, D.
Laszlo, A.
Lacey, R.
van Leeuwen, M.
Mackowiak-Pawlowska, M.
Makariev, M.
Malakhov, A.
Melkumov, G.
Mitrovski, M.
Mrowczynski, S.
Palla, G.
Panagiotou, A.
Peryt, W.
Pluta, J.
Prindle, D.
Puhlhofer, F.
Renfordt, R.
Roland, C.
Roland, G.
Rybczynski, M.
Rybicki, A.
Sandoval, A.
Rustamov, A.
Schmitz, N.
Schuster, T.
Seyboth, P.
Sikler, F.
Skrzypczak, E.
Slodkowski, M.
Stefanek, G.
Stock, R.
Strobele, H.
Susa, T.
Szuba, M.
Varga, D.
Vassiliou, M.
Veres, G.
Vesztergombi, G.
Vranic, D.
Wlodarczyk, Z.
Wojtaszek-Szwarc, A.
author_facet Anticic, T.
Baatar, B.
Barna, D.
Bartke, J.
Beck, H.
Betev, L.
Bialkowska, H.
Blume, C.
Boimska, B.
Book, J.
Botje, M.
Buncic, P.
Christakoglou, P.
Chung, P.
Chvala, O.
Cramer, J.
Eckardt, V.
Fodor, Z.
Foka, P.
Friese, V.
Gazdzicki, M.
Grebieszkow, K.
Hohne, C.
Kadija, K.
Karev, A.
Kolesnikov, V.
Kowalski, M.
Kresan, D.
Laszlo, A.
Lacey, R.
van Leeuwen, M.
Mackowiak-Pawlowska, M.
Makariev, M.
Malakhov, A.
Melkumov, G.
Mitrovski, M.
Mrowczynski, S.
Palla, G.
Panagiotou, A.
Peryt, W.
Pluta, J.
Prindle, D.
Puhlhofer, F.
Renfordt, R.
Roland, C.
Roland, G.
Rybczynski, M.
Rybicki, A.
Sandoval, A.
Rustamov, A.
Schmitz, N.
Schuster, T.
Seyboth, P.
Sikler, F.
Skrzypczak, E.
Slodkowski, M.
Stefanek, G.
Stock, R.
Strobele, H.
Susa, T.
Szuba, M.
Varga, D.
Vassiliou, M.
Veres, G.
Vesztergombi, G.
Vranic, D.
Wlodarczyk, Z.
Wojtaszek-Szwarc, A.
author_sort Anticic, T.
collection CERN
description A novel approach, the identity method, was used for particle identification and the study of fluctuations of particle yield ratios in Pb+Pb collisions at the CERN Super Proton Synchrotron (SPS). This procedure allows to unfold the moments of the unknown multiplicity distributions of protons (p), kaons (K), pions ($\pi$) and electrons (e). Using these moments the excitation function of the fluctuation measure $\nu_{\text{\text{dyn}}}$[A,B] was measured, with A and B denoting different particle types. The obtained energy dependence of $\nu_{\text{dyn}}$ agrees with previously published NA49 results on the related measure $\sigma_{\text{dyn}}$. Moreover, $\nu_{\text{dyn}}$ was found to depend on the phase space coverage for [K,p] and [K,$\pi$] pairs. This feature most likely explains the reported differences between measurements of NA49 and those of STAR in central Au+Au collisions.
id cern-1610395
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
record_format invenio
spelling cern-16103952021-07-16T00:06:16Zdoi:10.1103/PhysRevC.89.054902http://cds.cern.ch/record/1610395engAnticic, T.Baatar, B.Barna, D.Bartke, J.Beck, H.Betev, L.Bialkowska, H.Blume, C.Boimska, B.Book, J.Botje, M.Buncic, P.Christakoglou, P.Chung, P.Chvala, O.Cramer, J.Eckardt, V.Fodor, Z.Foka, P.Friese, V.Gazdzicki, M.Grebieszkow, K.Hohne, C.Kadija, K.Karev, A.Kolesnikov, V.Kowalski, M.Kresan, D.Laszlo, A.Lacey, R.van Leeuwen, M.Mackowiak-Pawlowska, M.Makariev, M.Malakhov, A.Melkumov, G.Mitrovski, M.Mrowczynski, S.Palla, G.Panagiotou, A.Peryt, W.Pluta, J.Prindle, D.Puhlhofer, F.Renfordt, R.Roland, C.Roland, G.Rybczynski, M.Rybicki, A.Sandoval, A.Rustamov, A.Schmitz, N.Schuster, T.Seyboth, P.Sikler, F.Skrzypczak, E.Slodkowski, M.Stefanek, G.Stock, R.Strobele, H.Susa, T.Szuba, M.Varga, D.Vassiliou, M.Veres, G.Vesztergombi, G.Vranic, D.Wlodarczyk, Z.Wojtaszek-Szwarc, A.Phase-space dependence of particle-ratio fluctuations in Pb+Pb collisions from 20A to 158A GeV beam energyNuclear Physics - ExperimentA novel approach, the identity method, was used for particle identification and the study of fluctuations of particle yield ratios in Pb+Pb collisions at the CERN Super Proton Synchrotron (SPS). This procedure allows to unfold the moments of the unknown multiplicity distributions of protons (p), kaons (K), pions ($\pi$) and electrons (e). Using these moments the excitation function of the fluctuation measure $\nu_{\text{\text{dyn}}}$[A,B] was measured, with A and B denoting different particle types. The obtained energy dependence of $\nu_{\text{dyn}}$ agrees with previously published NA49 results on the related measure $\sigma_{\text{dyn}}$. Moreover, $\nu_{\text{dyn}}$ was found to depend on the phase space coverage for [K,p] and [K,$\pi$] pairs. This feature most likely explains the reported differences between measurements of NA49 and those of STAR in central Au+Au collisions.<p>A novel approach, the identity method, was used for particle identification and the study of fluctuations of particle yield ratios in Pb + Pb collisions at the CERN Super Proton Synchrotron (SPS). This procedure allows one to measure the moments of the multiplicity distributions of protons (<inline-formula><mml:math><mml:mi>p</mml:mi></mml:math></inline-formula>), kaons (<inline-formula><mml:math><mml:mi>K</mml:mi></mml:math></inline-formula>), pions (<inline-formula><mml:math><mml:mi>π</mml:mi></mml:math></inline-formula>), and electrons (<inline-formula><mml:math><mml:mi>e</mml:mi></mml:math></inline-formula>) in case of incomplete particle identification. Using these moments the excitation function of the fluctuation measure <inline-formula><mml:math><mml:mrow><mml:msub><mml:mi>ν</mml:mi><mml:mi>dyn</mml:mi></mml:msub><mml:mrow><mml:mo>[</mml:mo><mml:mi>A</mml:mi><mml:mo>,</mml:mo><mml:mi>B</mml:mi><mml:mo>]</mml:mo></mml:mrow></mml:mrow></mml:math></inline-formula> was measured, with <inline-formula><mml:math><mml:mi>A</mml:mi></mml:math></inline-formula> and <inline-formula><mml:math><mml:mi>B</mml:mi></mml:math></inline-formula> denoting different particle types. The obtained energy dependence of <inline-formula><mml:math><mml:msub><mml:mi>ν</mml:mi><mml:mi>dyn</mml:mi></mml:msub></mml:math></inline-formula> agrees with previously published NA49 results on the related measure <inline-formula><mml:math><mml:msub><mml:mi>σ</mml:mi><mml:mi>dyn</mml:mi></mml:msub></mml:math></inline-formula>. However, <inline-formula><mml:math><mml:msub><mml:mi>ν</mml:mi><mml:mi>dyn</mml:mi></mml:msub></mml:math></inline-formula>[<inline-formula><mml:math><mml:mi>K</mml:mi></mml:math></inline-formula>,<inline-formula><mml:math><mml:mi>p</mml:mi></mml:math></inline-formula>] and <inline-formula><mml:math><mml:msub><mml:mi>ν</mml:mi><mml:mi>dyn</mml:mi></mml:msub></mml:math></inline-formula>[<inline-formula><mml:math><mml:mi>K</mml:mi></mml:math></inline-formula>,<inline-formula><mml:math><mml:mi>π</mml:mi></mml:math></inline-formula>] were found to depend on the phase-space coverage. This feature most likely explains the reported differences between measurements of NA49 and those of STAR in central Au + Au collisions.</p>A novel approach, the identity method, was used for particle identification and the study of fluctuations of particle yield ratios in Pb+Pb collisions at the CERN Super Proton Synchrotron (SPS). This procedure allows to unfold the moments of the unknown multiplicity distributions of protons (p), kaons (K), pions ($\pi$) and electrons (e). Using these moments the excitation function of the fluctuation measure $\nu_{\text{\text{dyn}}}$[A,B] was measured, with A and B denoting different particle types. The obtained energy dependence of $\nu_{\text{dyn}}$ agrees with previously published NA49 results on the related measure $\sigma_{\text{dyn}}$. Moreover, $\nu_{\text{dyn}}$ was found to depend on the phase space coverage for [K,p] and [K,$\pi$] pairs. This feature most likely explains the reported differences between measurements of NA49 and those of STAR in central Au+Au collisions.arXiv:1310.3428oai:cds.cern.ch:16103952013-10-12
spellingShingle Nuclear Physics - Experiment
Anticic, T.
Baatar, B.
Barna, D.
Bartke, J.
Beck, H.
Betev, L.
Bialkowska, H.
Blume, C.
Boimska, B.
Book, J.
Botje, M.
Buncic, P.
Christakoglou, P.
Chung, P.
Chvala, O.
Cramer, J.
Eckardt, V.
Fodor, Z.
Foka, P.
Friese, V.
Gazdzicki, M.
Grebieszkow, K.
Hohne, C.
Kadija, K.
Karev, A.
Kolesnikov, V.
Kowalski, M.
Kresan, D.
Laszlo, A.
Lacey, R.
van Leeuwen, M.
Mackowiak-Pawlowska, M.
Makariev, M.
Malakhov, A.
Melkumov, G.
Mitrovski, M.
Mrowczynski, S.
Palla, G.
Panagiotou, A.
Peryt, W.
Pluta, J.
Prindle, D.
Puhlhofer, F.
Renfordt, R.
Roland, C.
Roland, G.
Rybczynski, M.
Rybicki, A.
Sandoval, A.
Rustamov, A.
Schmitz, N.
Schuster, T.
Seyboth, P.
Sikler, F.
Skrzypczak, E.
Slodkowski, M.
Stefanek, G.
Stock, R.
Strobele, H.
Susa, T.
Szuba, M.
Varga, D.
Vassiliou, M.
Veres, G.
Vesztergombi, G.
Vranic, D.
Wlodarczyk, Z.
Wojtaszek-Szwarc, A.
Phase-space dependence of particle-ratio fluctuations in Pb+Pb collisions from 20A to 158A GeV beam energy
title Phase-space dependence of particle-ratio fluctuations in Pb+Pb collisions from 20A to 158A GeV beam energy
title_full Phase-space dependence of particle-ratio fluctuations in Pb+Pb collisions from 20A to 158A GeV beam energy
title_fullStr Phase-space dependence of particle-ratio fluctuations in Pb+Pb collisions from 20A to 158A GeV beam energy
title_full_unstemmed Phase-space dependence of particle-ratio fluctuations in Pb+Pb collisions from 20A to 158A GeV beam energy
title_short Phase-space dependence of particle-ratio fluctuations in Pb+Pb collisions from 20A to 158A GeV beam energy
title_sort phase-space dependence of particle-ratio fluctuations in pb+pb collisions from 20a to 158a gev beam energy
topic Nuclear Physics - Experiment
url https://dx.doi.org/10.1103/PhysRevC.89.054902
http://cds.cern.ch/record/1610395
work_keys_str_mv AT anticict phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT baatarb phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT barnad phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT bartkej phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT beckh phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT betevl phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT bialkowskah phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT blumec phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT boimskab phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT bookj phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT botjem phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT buncicp phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT christakogloup phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT chungp phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT chvalao phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT cramerj phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT eckardtv phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT fodorz phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT fokap phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT friesev phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT gazdzickim phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT grebieszkowk phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT hohnec phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT kadijak phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT kareva phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT kolesnikovv phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT kowalskim phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT kresand phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT laszloa phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT laceyr phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT vanleeuwenm phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT mackowiakpawlowskam phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT makarievm phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT malakhova phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT melkumovg phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT mitrovskim phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT mrowczynskis phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT pallag phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT panagiotoua phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT perytw phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT plutaj phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT prindled phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT puhlhoferf phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT renfordtr phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT rolandc phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT rolandg phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT rybczynskim phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT rybickia phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT sandovala phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT rustamova phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT schmitzn phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT schustert phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT seybothp phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT siklerf phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT skrzypczake phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT slodkowskim phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT stefanekg phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT stockr phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT strobeleh phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT susat phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT szubam phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT vargad phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT vassilioum phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT veresg phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT vesztergombig phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT vranicd phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT wlodarczykz phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy
AT wojtaszekszwarca phasespacedependenceofparticleratiofluctuationsinpbpbcollisionsfrom20ato158agevbeamenergy

Ejemplares similares