Dielectron production in 12C+12C collisions at 2 A GeV with HADES

J. Markert; G. Agakishiev; C. Agodi; A. Balanda; G. Bellia; D. Belver; A. Belyaev; A. Blanco; M. Böhmer; J. L. Boyard; P. Braun-Munzinger; P. Cabanelas; E. Castro; S. Chernenko; T. Christ; M. Destefanis; J. Díaz; F. Dohrmann; A. Dybczak; T. Eberl; L. Fabbietti; O. Fateev; P. Finocchiaro; P. Fonte; J. Friese; I. Fröhlich; T. Galatyuk; J. A. Garzón; R. Gernhäuser; C. Gilardi; M. Golubeva; D. Gonzlez-Díaz; E. Grosse; F. Guber; M. Heilmann; T. Hennino; R. Holzmann; A. Ierusalimov; I. Iori; A. Ivashkin; M. Jurkovic; B. Kämpfer; K. Kanaki; T. Karavicheva; D. Kirschner; I. Koenig; W. Koenig; B. W. Kolb; R. Kotte; A. Kozuch; F. Krizek; R. Krücken; W. Kühn; A. Kugler; A. Kurepin; J. Lamas-Valverde; S. Lang; J. S. Lange; L. Lopes; L. Maier; A. Mangiarotti; J. Marín; J. Markert; V. Metag; B. Michalska; D. Mishra; E. Morinière; J. Mousa; C. Müntz; L. Naumann; R. Novotny; J. Otwinowski; Y. C. Pachmayer; M. Palka; V. Pechenov; O. Pechenova; T. Pérez Cavalcanti; J. Pietraszko; W. Przygoda; B. Ramstein; A. Reshetin; M. Roy-Stephan; A. Rustamov; A. Sadovsky; B. Sailer; P. Salabura; A. Schmah; R. Simon; S. Spataro; B. Spruck; H. Ströbele; J. Stroth; C. Sturm; M. Sudol; A. Tarantola; K. Teilab; P. Tlusty; M. Traxler; R. Trebacz; H. Tsertos; I. Veretenkin; V. Wagner; H. Wen; M. Wisniowski; T. Wojcik; J. Wüstenfeld; S. Yurevich; Y. Zanevsky; P. Zumbruch

doi:10.1088/0954-3899/34/8/S152

Dielectron production in ¹²C+¹²C collisions at 2 A GeV with HADES

J. Markert
, G. Agakishiev
, C. Agodi
, A. Balanda
, G. Bellia
, D. Belver
, A. Belyaev
, A. Blanco
, M. Böhmer
, J. L. Boyard
, P. Braun-Munzinger
, P. Cabanelas
, E. Castro
, S. Chernenko
, T. Christ
, M. Destefanis
, J. Díaz
, F. Dohrmann
, A. Dybczak
, T. Eberl

L. Fabbietti, O. Fateev, P. Finocchiaro, P. Fonte, J. Friese, I. Fröhlich, T. Galatyuk, J. A. Garzón, R. Gernhäuser, C. Gilardi, M. Golubeva, D. Gonzlez-Díaz, E. Grosse, F. Guber, M. Heilmann, T. Hennino, R. Holzmann, A. Ierusalimov, I. Iori, A. Ivashkin, M. Jurkovic, B. Kämpfer, K. Kanaki, T. Karavicheva, D. Kirschner, I. Koenig, W. Koenig, B. W. Kolb, R. Kotte, A. Kozuch, F. Krizek, R. Krücken, W. Kühn, A. Kugler, A. Kurepin, J. Lamas-Valverde, S. Lang, J. S. Lange, L. Lopes, L. Maier, A. Mangiarotti, J. Marín, J. Markert, V. Metag, B. Michalska, D. Mishra, E. Morinière, J. Mousa, C. Müntz, L. Naumann, R. Novotny, J. Otwinowski, Y. C. Pachmayer, M. Palka, V. Pechenov, O. Pechenova, T. Pérez Cavalcanti, J. Pietraszko, W. Przygoda, B. Ramstein, A. Reshetin, M. Roy-Stephan, A. Rustamov, A. Sadovsky, B. Sailer, P. Salabura, A. Schmah, R. Simon, S. Spataro, B. Spruck, H. Ströbele, J. Stroth, C. Sturm, M. Sudol, A. Tarantola, K. Teilab, P. Tlusty, M. Traxler, R. Trebacz, H. Tsertos, I. Veretenkin, V. Wagner, H. Wen, M. Wisniowski, T. Wojcik, J. Wüstenfeld, S. Yurevich, Y. Zanevsky, P. Zumbruch

Chair of Experimentalphysik - Dense and Strange Hadronic Matter

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

1 Scopus citations

Abstract

We report on a measurement of electron pair production in ¹²C+¹²C collisions at an incident energy of 2 GeV per nucleon with the HADES spectrometer. The measured pair production probabilities span over five orders of magnitude from the π⁰-Dalitz to the ρ/ω invariant-mass region. Dalitz decays of π⁰ and η account for all the yield up to 0.15 GeV/c², but for only about 50% above this mass. The excess yield is in agreement with the former DLS result if one assumes that it scales with beam energy like pion production. A preliminary analysis of ¹²C+¹²C collisions at an incident energy of 1 A GeV, measured with the HADES detector, supports this scenario.

Original language	English
Article number	S152
Pages (from-to)	S1041-S1045
Journal	Journal of Physics G: Nuclear and Particle Physics
Volume	34
Issue number	8
DOIs	https://doi.org/10.1088/0954-3899/34/8/S152
State	Published - 1 Aug 2007

Access to Document

10.1088/0954-3899/34/8/S152

Cite this

Markert, J., Agakishiev, G., Agodi, C., Balanda, A., Bellia, G., Belver, D., Belyaev, A., Blanco, A., Böhmer, M., Boyard, J. L., Braun-Munzinger, P., Cabanelas, P., Castro, E., Chernenko, S., Christ, T., Destefanis, M., Díaz, J., Dohrmann, F., Dybczak, A., ... Zumbruch, P. (2007). Dielectron production in ¹²C+¹²C collisions at 2 A GeV with HADES. Journal of Physics G: Nuclear and Particle Physics, 34(8), S1041-S1045. Article S152. https://doi.org/10.1088/0954-3899/34/8/S152

@article{58039d575a784cbbb38090ee711346c4,

title = "Dielectron production in 12C+12C collisions at 2 A GeV with HADES",

abstract = "We report on a measurement of electron pair production in 12C+12C collisions at an incident energy of 2 GeV per nucleon with the HADES spectrometer. The measured pair production probabilities span over five orders of magnitude from the π0-Dalitz to the ρ/ω invariant-mass region. Dalitz decays of π0 and η account for all the yield up to 0.15 GeV/c2, but for only about 50\% above this mass. The excess yield is in agreement with the former DLS result if one assumes that it scales with beam energy like pion production. A preliminary analysis of 12C+12C collisions at an incident energy of 1 A GeV, measured with the HADES detector, supports this scenario.",

author = "J. Markert and G. Agakishiev and C. Agodi and A. Balanda and G. Bellia and D. Belver and A. Belyaev and A. Blanco and M. B{\"o}hmer and Boyard, \{J. L.\} and P. Braun-Munzinger and P. Cabanelas and E. Castro and S. Chernenko and T. Christ and M. Destefanis and J. D{\'i}az and F. Dohrmann and A. Dybczak and T. Eberl and L. Fabbietti and O. Fateev and P. Finocchiaro and P. Fonte and J. Friese and I. Fr{\"o}hlich and T. Galatyuk and Garz{\'o}n, \{J. A.\} and R. Gernh{\"a}user and C. Gilardi and M. Golubeva and D. Gonzlez-D{\'i}az and E. Grosse and F. Guber and M. Heilmann and T. Hennino and R. Holzmann and A. Ierusalimov and I. Iori and A. Ivashkin and M. Jurkovic and B. K{\"a}mpfer and K. Kanaki and T. Karavicheva and D. Kirschner and I. Koenig and W. Koenig and Kolb, \{B. W.\} and R. Kotte and A. Kozuch and F. Krizek and R. Kr{\"u}cken and W. K{\"u}hn and A. Kugler and A. Kurepin and J. Lamas-Valverde and S. Lang and Lange, \{J. S.\} and L. Lopes and L. Maier and A. Mangiarotti and J. Mar{\'i}n and J. Markert and V. Metag and B. Michalska and D. Mishra and E. Morini{\`e}re and J. Mousa and C. M{\"u}ntz and L. Naumann and R. Novotny and J. Otwinowski and Pachmayer, \{Y. C.\} and M. Palka and V. Pechenov and O. Pechenova and Cavalcanti, \{T. P{\'e}rez\} and J. Pietraszko and W. Przygoda and B. Ramstein and A. Reshetin and M. Roy-Stephan and A. Rustamov and A. Sadovsky and B. Sailer and P. Salabura and A. Schmah and R. Simon and S. Spataro and B. Spruck and H. Str{\"o}bele and J. Stroth and C. Sturm and M. Sudol and A. Tarantola and K. Teilab and P. Tlusty and M. Traxler and R. Trebacz and H. Tsertos and I. Veretenkin and V. Wagner and H. Wen and M. Wisniowski and T. Wojcik and J. W{\"u}stenfeld and S. Yurevich and Y. Zanevsky and P. Zumbruch",

year = "2007",

month = aug,

day = "1",

doi = "10.1088/0954-3899/34/8/S152",

language = "English",

volume = "34",

pages = "S1041--S1045",

journal = "Journal of Physics G: Nuclear and Particle Physics",

issn = "0954-3899",

publisher = "IOP Publishing Ltd.",

number = "8",

}

Markert, J, Agakishiev, G, Agodi, C, Balanda, A, Bellia, G, Belver, D, Belyaev, A, Blanco, A, Böhmer, M, Boyard, JL, Braun-Munzinger, P, Cabanelas, P, Castro, E, Chernenko, S, Christ, T, Destefanis, M, Díaz, J, Dohrmann, F, Dybczak, A, Eberl, T, Fabbietti, L, Fateev, O, Finocchiaro, P, Fonte, P, Friese, J, Fröhlich, I, Galatyuk, T, Garzón, JA, Gernhäuser, R, Gilardi, C, Golubeva, M, Gonzlez-Díaz, D, Grosse, E, Guber, F, Heilmann, M, Hennino, T, Holzmann, R, Ierusalimov, A, Iori, I, Ivashkin, A, Jurkovic, M, Kämpfer, B, Kanaki, K, Karavicheva, T, Kirschner, D, Koenig, I, Koenig, W, Kolb, BW, Kotte, R, Kozuch, A, Krizek, F, Krücken, R, Kühn, W, Kugler, A, Kurepin, A, Lamas-Valverde, J, Lang, S, Lange, JS, Lopes, L, Maier, L, Mangiarotti, A, Marín, J, Markert, J, Metag, V, Michalska, B, Mishra, D, Morinière, E, Mousa, J, Müntz, C, Naumann, L, Novotny, R, Otwinowski, J, Pachmayer, YC, Palka, M, Pechenov, V, Pechenova, O, Cavalcanti, TP, Pietraszko, J, Przygoda, W, Ramstein, B, Reshetin, A, Roy-Stephan, M, Rustamov, A, Sadovsky, A, Sailer, B, Salabura, P, Schmah, A, Simon, R, Spataro, S, Spruck, B, Ströbele, H, Stroth, J, Sturm, C, Sudol, M, Tarantola, A, Teilab, K, Tlusty, P, Traxler, M, Trebacz, R, Tsertos, H, Veretenkin, I, Wagner, V, Wen, H, Wisniowski, M, Wojcik, T, Wüstenfeld, J, Yurevich, S, Zanevsky, Y & Zumbruch, P 2007, 'Dielectron production in ¹²C+¹²C collisions at 2 A GeV with HADES', Journal of Physics G: Nuclear and Particle Physics, vol. 34, no. 8, S152, pp. S1041-S1045. https://doi.org/10.1088/0954-3899/34/8/S152

TY - JOUR

T1 - Dielectron production in 12C+12C collisions at 2 A GeV with HADES

AU - Markert, J.

AU - Agakishiev, G.

AU - Agodi, C.

AU - Balanda, A.

AU - Bellia, G.

AU - Belver, D.

AU - Belyaev, A.

AU - Blanco, A.

AU - Böhmer, M.

AU - Boyard, J. L.

AU - Braun-Munzinger, P.

AU - Cabanelas, P.

AU - Castro, E.

AU - Chernenko, S.

AU - Christ, T.

AU - Destefanis, M.

AU - Díaz, J.

AU - Dohrmann, F.

AU - Dybczak, A.

AU - Eberl, T.

AU - Fabbietti, L.

AU - Fateev, O.

AU - Finocchiaro, P.

AU - Fonte, P.

AU - Friese, J.

AU - Fröhlich, I.

AU - Galatyuk, T.

AU - Garzón, J. A.

AU - Gernhäuser, R.

AU - Gilardi, C.

AU - Golubeva, M.

AU - Gonzlez-Díaz, D.

AU - Grosse, E.

AU - Guber, F.

AU - Heilmann, M.

AU - Hennino, T.

AU - Holzmann, R.

AU - Ierusalimov, A.

AU - Iori, I.

AU - Ivashkin, A.

AU - Jurkovic, M.

AU - Kämpfer, B.

AU - Kanaki, K.

AU - Karavicheva, T.

AU - Kirschner, D.

AU - Koenig, I.

AU - Koenig, W.

AU - Kolb, B. W.

AU - Kotte, R.

AU - Kozuch, A.

AU - Krizek, F.

AU - Krücken, R.

AU - Kühn, W.

AU - Kugler, A.

AU - Kurepin, A.

AU - Lamas-Valverde, J.

AU - Lang, S.

AU - Lange, J. S.

AU - Lopes, L.

AU - Maier, L.

AU - Mangiarotti, A.

AU - Marín, J.

AU - Markert, J.

AU - Metag, V.

AU - Michalska, B.

AU - Mishra, D.

AU - Morinière, E.

AU - Mousa, J.

AU - Müntz, C.

AU - Naumann, L.

AU - Novotny, R.

AU - Otwinowski, J.

AU - Pachmayer, Y. C.

AU - Palka, M.

AU - Pechenov, V.

AU - Pechenova, O.

AU - Cavalcanti, T. Pérez

AU - Pietraszko, J.

AU - Przygoda, W.

AU - Ramstein, B.

AU - Reshetin, A.

AU - Roy-Stephan, M.

AU - Rustamov, A.

AU - Sadovsky, A.

AU - Sailer, B.

AU - Salabura, P.

AU - Schmah, A.

AU - Simon, R.

AU - Spataro, S.

AU - Spruck, B.

AU - Ströbele, H.

AU - Stroth, J.

AU - Sturm, C.

AU - Sudol, M.

AU - Tarantola, A.

AU - Teilab, K.

AU - Tlusty, P.

AU - Traxler, M.

AU - Trebacz, R.

AU - Tsertos, H.

AU - Veretenkin, I.

AU - Wagner, V.

AU - Wen, H.

AU - Wisniowski, M.

AU - Wojcik, T.

AU - Wüstenfeld, J.

AU - Yurevich, S.

AU - Zanevsky, Y.

AU - Zumbruch, P.

PY - 2007/8/1

Y1 - 2007/8/1

N2 - We report on a measurement of electron pair production in 12C+12C collisions at an incident energy of 2 GeV per nucleon with the HADES spectrometer. The measured pair production probabilities span over five orders of magnitude from the π0-Dalitz to the ρ/ω invariant-mass region. Dalitz decays of π0 and η account for all the yield up to 0.15 GeV/c2, but for only about 50% above this mass. The excess yield is in agreement with the former DLS result if one assumes that it scales with beam energy like pion production. A preliminary analysis of 12C+12C collisions at an incident energy of 1 A GeV, measured with the HADES detector, supports this scenario.

AB - We report on a measurement of electron pair production in 12C+12C collisions at an incident energy of 2 GeV per nucleon with the HADES spectrometer. The measured pair production probabilities span over five orders of magnitude from the π0-Dalitz to the ρ/ω invariant-mass region. Dalitz decays of π0 and η account for all the yield up to 0.15 GeV/c2, but for only about 50% above this mass. The excess yield is in agreement with the former DLS result if one assumes that it scales with beam energy like pion production. A preliminary analysis of 12C+12C collisions at an incident energy of 1 A GeV, measured with the HADES detector, supports this scenario.

UR - https://www.scopus.com/pages/publications/34547402576

U2 - 10.1088/0954-3899/34/8/S152

DO - 10.1088/0954-3899/34/8/S152

M3 - Article

AN - SCOPUS:34547402576

SN - 0954-3899

VL - 34

SP - S1041-S1045

JO - Journal of Physics G: Nuclear and Particle Physics

JF - Journal of Physics G: Nuclear and Particle Physics

IS - 8

M1 - S152

ER -

Dielectron production in ¹²C+¹²C collisions at 2 A GeV with HADES

Abstract

Access to Document

Other files and links

Fingerprint

Cite this