Dilepton measurements with CERES

D. Adamová; G. Agakichiev; A. Andronic; D. Antończyk; H. Appelshäuser; V. Belaga; J. Bielčíková; P. Braun-Munzinger; O. Busch; A. Cherlin; S. Damjanović; T. Dietel; L. Dietrich; A. Drees; S. I. Esumi; K. Filimonov; K. Fomenko; Z. Fraenkel; C. Garabatos; P. Glässel; G. Hering; J. Holeczek; M. Kalisky; S. Kniege; V. Kushpil; W. Ludolphs; A. Maas; A. Marín; J. Milošević; D. Miśkowiec; R. Ortega; Y. Panebrattsev; O. Petchenova; V. Petráček; M. Płoskoń; S. Radomski; J. Rak; I. Ravinovich; P. Rehak; H. Sako; W. Schmitz; S. Schuchmann; S. Sedykh; S. Shimansky; R. Soualah; J. Stachel; M. Šumbera; H. Tilsner; I. Tserruya; G. Tsiledakis; J. P. Wessels; T. Wienold; J. P. Wurm; S. Yurevich; V. Yurevich

Dilepton measurements with CERES

D. Adamová
, G. Agakichiev
, A. Andronic
, D. Antończyk
, H. Appelshäuser
, V. Belaga
, J. Bielčíková
, P. Braun-Munzinger
, O. Busch
, A. Cherlin
, S. Damjanović
, T. Dietel
, L. Dietrich
, A. Drees
, S. I. Esumi
, K. Filimonov
, K. Fomenko
, Z. Fraenkel
, C. Garabatos
, P. Glässel

G. Hering, J. Holeczek, M. Kalisky, S. Kniege, V. Kushpil, W. Ludolphs, A. Maas, A. Marín, J. Milošević, D. Miśkowiec, R. Ortega, Y. Panebrattsev, O. Petchenova, V. Petráček, M. Płoskoń, S. Radomski, J. Rak, I. Ravinovich, P. Rehak, H. Sako, W. Schmitz, S. Schuchmann, S. Sedykh, S. Shimansky, R. Soualah, J. Stachel, M. Šumbera, H. Tilsner, I. Tserruya, G. Tsiledakis, J. P. Wessels, T. Wienold, J. P. Wurm, S. Yurevich, V. Yurevich

Physics and Astronomy

Czech Academy of Sciences
Joint Institute for Nuclear Research
GSI Helmholtz Centre for Heavy Ion Research
Goethe University Frankfurt
MPI
Heidelberg University
Weizmann Institute of Science
University of Münster
Brookhaven National Laboratory
CERN

Research output: Contribution to journal › Conference article › peer-review

Abstract

We report on dilepton measurements for central Pb on Au collisions at the top CERN SPS energy with the upgraded CERES experiment. The dilepton mass spectrum of 2000 data with improved mass resolution shows an enhancement over the expectation from hadron decays that is well described by a model including a strong broadening of the rspectral function. The measured excess yield excludes the dropping mass scenario. We also report on the fmeson measured simultaneously both in the K⁺K^- and in the dilepton decay channel for the first time in high energy heavy-ion collisions. An excellent agreement is found between the rapidity densities and the shape of the measured tranverse momentum spectrum. The data rule out a possible enhancement of the f yield in the leptonic over hadronic channel by a factor larger than 1.6 at 95% CL. CERES results are in agreement with NA49 results.

Original language	English
Journal	Proceedings of Science
State	Published - 2007
Event	4th International Workshop on Critical Point and Onset of Deconfinement, CPOD 2007 - Darmstadt, Germany Duration: Jul 9 2007 → Jul 13 2007

Cite this

@article{fb1e548c9a0449c2b2641290f253fce5,

title = "Dilepton measurements with CERES",

abstract = "We report on dilepton measurements for central Pb on Au collisions at the top CERN SPS energy with the upgraded CERES experiment. The dilepton mass spectrum of 2000 data with improved mass resolution shows an enhancement over the expectation from hadron decays that is well described by a model including a strong broadening of the rspectral function. The measured excess yield excludes the dropping mass scenario. We also report on the fmeson measured simultaneously both in the K+K- and in the dilepton decay channel for the first time in high energy heavy-ion collisions. An excellent agreement is found between the rapidity densities and the shape of the measured tranverse momentum spectrum. The data rule out a possible enhancement of the f yield in the leptonic over hadronic channel by a factor larger than 1.6 at 95\% CL. CERES results are in agreement with NA49 results.",

author = "D. Adamov{\'a} and G. Agakichiev and A. Andronic and D. Anto{\'n}czyk and H. Appelsh{\"a}user and V. Belaga and J. Biel{\v c}{\'i}kov{\'a} and P. Braun-Munzinger and O. Busch and A. Cherlin and S. Damjanovi{\'c} and T. Dietel and L. Dietrich and A. Drees and Esumi, \{S. I.\} and K. Filimonov and K. Fomenko and Z. Fraenkel and C. Garabatos and P. Gl{\"a}ssel and G. Hering and J. Holeczek and M. Kalisky and S. Kniege and V. Kushpil and W. Ludolphs and A. Maas and A. Mar{\'i}n and J. Milo{\v s}evi{\'c} and D. Mi{\'s}kowiec and R. Ortega and Y. Panebrattsev and O. Petchenova and V. Petr{\'a}{\v c}ek and M. P{\l}osko{\'n} and S. Radomski and J. Rak and I. Ravinovich and P. Rehak and H. Sako and W. Schmitz and S. Schuchmann and S. Sedykh and S. Shimansky and R. Soualah and J. Stachel and M. {\v S}umbera and H. Tilsner and I. Tserruya and G. Tsiledakis and Wessels, \{J. P.\} and T. Wienold and Wurm, \{J. P.\} and S. Yurevich and V. Yurevich",

year = "2007",

language = "English",

journal = "Proceedings of Science",

issn = "1824-8039",

note = "4th International Workshop on Critical Point and Onset of Deconfinement, CPOD 2007 ; Conference date: 09-07-2007 Through 13-07-2007",

}

Adamová, D, Agakichiev, G, Andronic, A, Antończyk, D, Appelshäuser, H, Belaga, V, Bielčíková, J, Braun-Munzinger, P, Busch, O, Cherlin, A, Damjanović, S, Dietel, T, Dietrich, L, Drees, A, Esumi, SI, Filimonov, K, Fomenko, K, Fraenkel, Z, Garabatos, C, Glässel, P, Hering, G, Holeczek, J, Kalisky, M, Kniege, S, Kushpil, V, Ludolphs, W, Maas, A, Marín, A, Milošević, J, Miśkowiec, D, Ortega, R, Panebrattsev, Y, Petchenova, O, Petráček, V, Płoskoń, M, Radomski, S, Rak, J, Ravinovich, I, Rehak, P, Sako, H, Schmitz, W, Schuchmann, S, Sedykh, S, Shimansky, S, Soualah, R, Stachel, J, Šumbera, M, Tilsner, H, Tserruya, I, Tsiledakis, G, Wessels, JP, Wienold, T, Wurm, JP, Yurevich, S & Yurevich, V 2007, 'Dilepton measurements with CERES', Proceedings of Science.

TY - JOUR

T1 - Dilepton measurements with CERES

AU - Adamová, D.

AU - Agakichiev, G.

AU - Andronic, A.

AU - Antończyk, D.

AU - Appelshäuser, H.

AU - Belaga, V.

AU - Bielčíková, J.

AU - Braun-Munzinger, P.

AU - Busch, O.

AU - Cherlin, A.

AU - Damjanović, S.

AU - Dietel, T.

AU - Dietrich, L.

AU - Drees, A.

AU - Esumi, S. I.

AU - Filimonov, K.

AU - Fomenko, K.

AU - Fraenkel, Z.

AU - Garabatos, C.

AU - Glässel, P.

AU - Hering, G.

AU - Holeczek, J.

AU - Kalisky, M.

AU - Kniege, S.

AU - Kushpil, V.

AU - Ludolphs, W.

AU - Maas, A.

AU - Marín, A.

AU - Milošević, J.

AU - Miśkowiec, D.

AU - Ortega, R.

AU - Panebrattsev, Y.

AU - Petchenova, O.

AU - Petráček, V.

AU - Płoskoń, M.

AU - Radomski, S.

AU - Rak, J.

AU - Ravinovich, I.

AU - Rehak, P.

AU - Sako, H.

AU - Schmitz, W.

AU - Schuchmann, S.

AU - Sedykh, S.

AU - Shimansky, S.

AU - Soualah, R.

AU - Stachel, J.

AU - Šumbera, M.

AU - Tilsner, H.

AU - Tserruya, I.

AU - Tsiledakis, G.

AU - Wessels, J. P.

AU - Wienold, T.

AU - Wurm, J. P.

AU - Yurevich, S.

AU - Yurevich, V.

PY - 2007

Y1 - 2007

N2 - We report on dilepton measurements for central Pb on Au collisions at the top CERN SPS energy with the upgraded CERES experiment. The dilepton mass spectrum of 2000 data with improved mass resolution shows an enhancement over the expectation from hadron decays that is well described by a model including a strong broadening of the rspectral function. The measured excess yield excludes the dropping mass scenario. We also report on the fmeson measured simultaneously both in the K+K- and in the dilepton decay channel for the first time in high energy heavy-ion collisions. An excellent agreement is found between the rapidity densities and the shape of the measured tranverse momentum spectrum. The data rule out a possible enhancement of the f yield in the leptonic over hadronic channel by a factor larger than 1.6 at 95% CL. CERES results are in agreement with NA49 results.

AB - We report on dilepton measurements for central Pb on Au collisions at the top CERN SPS energy with the upgraded CERES experiment. The dilepton mass spectrum of 2000 data with improved mass resolution shows an enhancement over the expectation from hadron decays that is well described by a model including a strong broadening of the rspectral function. The measured excess yield excludes the dropping mass scenario. We also report on the fmeson measured simultaneously both in the K+K- and in the dilepton decay channel for the first time in high energy heavy-ion collisions. An excellent agreement is found between the rapidity densities and the shape of the measured tranverse momentum spectrum. The data rule out a possible enhancement of the f yield in the leptonic over hadronic channel by a factor larger than 1.6 at 95% CL. CERES results are in agreement with NA49 results.

UR - https://www.scopus.com/pages/publications/84883547908

M3 - Conference article

AN - SCOPUS:84883547908

SN - 1824-8039

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 4th International Workshop on Critical Point and Onset of Deconfinement, CPOD 2007

Y2 - 9 July 2007 through 13 July 2007

ER -

Dilepton measurements with CERES

Abstract

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