Strangelets, strangeness and antimatter: Results from the experiment NA52 at CERN

S. Kabana; G. Ambrosini; R. Arsenescu; H. P. Beck; K. Borer; P. Hess; R. Klingenberg; G. Lehmann; R. Mommsen; U. Moser; K. Pretzl; J. Schacher; R. Spiwoks; F. Stoffel; M. Weber; C. Baglin; A. Bussière; J. P. Guillaud; K. Elsener; K. D. Lohmann; Ph Gorodetzky; T. Lindén; J. Tuominiemi

Strangelets, strangeness and antimatter: Results from the experiment NA52 at CERN

S. Kabana
, G. Ambrosini
, R. Arsenescu
, H. P. Beck
, K. Borer
, P. Hess
, R. Klingenberg
, G. Lehmann
, R. Mommsen
, U. Moser
, K. Pretzl
, J. Schacher
, R. Spiwoks
, F. Stoffel
, M. Weber
, C. Baglin
, A. Bussière
, J. P. Guillaud
, K. Elsener
, K. D. Lohmann

Ph Gorodetzky, T. Lindén, J. Tuominiemi

Producción científica: Contribución a una revista › Artículo de la conferencia › revisión exhaustiva

Resumen

We present results of the CERN experiment NA52 which measures Pb+Pb collisions at 158 A GeV. The topics we address are: 1. strangelet search, 2. nuclei and antinuclei production and 3. strangeness production. No strangelets have been found. We set upper limits which stretch down to the minimal values of ~ 2 10^-10 for negatively and 3 10^-9 for positively charged strangelets. We observed 5³He near midrapidity. Nuclei and antinuclei cross sections suggest production mainly through coalescence, out of a thermalised particle source, at the time of the thermal freeze-out as witnessed by their temperature of 100-120 MeV. Charged kaons per participant nucleon (N_p) show an onset of enhancement followed by saturation at N_p ~ 80, corresponding approximately to an initial energy density of_i ~ 1.3 GeV/fm³. This onset may be connected to the onset of the QCD phase transition.

Idioma original	Inglés
Publicación	Proceedings of Science
Volumen	7
Estado	Publicada - 2001
Publicado de forma externa	Sí
Evento	2001 International Europhysics Conference on High Energy Physics, HEP 2001 - Budapest, Hungría Duración: 12 jul. 2001 → 18 jul. 2001

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Kabana, S., Ambrosini, G., Arsenescu, R., Beck, H. P., Borer, K., Hess, P., Klingenberg, R., Lehmann, G., Mommsen, R., Moser, U., Pretzl, K., Schacher, J., Spiwoks, R., Stoffel, F., Weber, M., Baglin, C., Bussière, A., Guillaud, J. P., Elsener, K., ... Tuominiemi, J. (2001). Strangelets, strangeness and antimatter: Results from the experiment NA52 at CERN. Proceedings of Science, 7.

@article{78a5bb5eb5194b64ac0ab5e65b13f1cb,

title = "Strangelets, strangeness and antimatter: Results from the experiment NA52 at CERN",

abstract = "We present results of the CERN experiment NA52 which measures Pb+Pb collisions at 158 A GeV. The topics we address are: 1. strangelet search, 2. nuclei and antinuclei production and 3. strangeness production. No strangelets have been found. We set upper limits which stretch down to the minimal values of \textasciitilde{} 2 10-10 for negatively and 3 10-9 for positively charged strangelets. We observed 53He near midrapidity. Nuclei and antinuclei cross sections suggest production mainly through coalescence, out of a thermalised particle source, at the time of the thermal freeze-out as witnessed by their temperature of 100-120 MeV. Charged kaons per participant nucleon (Np) show an onset of enhancement followed by saturation at Np \textasciitilde{} 80, corresponding approximately to an initial energy density ofi \textasciitilde{} 1.3 GeV/fm3. This onset may be connected to the onset of the QCD phase transition.",

keywords = "Antimatter, Quark gluon plasma, Strangelets, Strangeness",

author = "S. Kabana and G. Ambrosini and R. Arsenescu and Beck, \{H. P.\} and K. Borer and P. Hess and R. Klingenberg and G. Lehmann and R. Mommsen and U. Moser and K. Pretzl and J. Schacher and R. Spiwoks and F. Stoffel and M. Weber and C. Baglin and A. Bussi{\`e}re and Guillaud, \{J. P.\} and K. Elsener and Lohmann, \{K. D.\} and Ph Gorodetzky and T. Lind{\'e}n and J. Tuominiemi",

note = "Publisher Copyright: {\textcopyright} Proceedings of Science 2001. All rights reserved.; 2001 International Europhysics Conference on High Energy Physics, HEP 2001 ; Conference date: 12-07-2001 Through 18-07-2001",

year = "2001",

language = "English",

volume = "7",

journal = "Proceedings of Science",

issn = "1824-8039",

}

Kabana, S, Ambrosini, G, Arsenescu, R, Beck, HP, Borer, K, Hess, P, Klingenberg, R, Lehmann, G, Mommsen, R, Moser, U, Pretzl, K, Schacher, J, Spiwoks, R, Stoffel, F, Weber, M, Baglin, C, Bussière, A, Guillaud, JP, Elsener, K, Lohmann, KD, Gorodetzky, P, Lindén, T & Tuominiemi, J 2001, 'Strangelets, strangeness and antimatter: Results from the experiment NA52 at CERN', Proceedings of Science, vol. 7.

TY - JOUR

T1 - Strangelets, strangeness and antimatter

T2 - 2001 International Europhysics Conference on High Energy Physics, HEP 2001

AU - Kabana, S.

AU - Ambrosini, G.

AU - Arsenescu, R.

AU - Beck, H. P.

AU - Borer, K.

AU - Hess, P.

AU - Klingenberg, R.

AU - Lehmann, G.

AU - Mommsen, R.

AU - Moser, U.

AU - Pretzl, K.

AU - Schacher, J.

AU - Spiwoks, R.

AU - Stoffel, F.

AU - Weber, M.

AU - Baglin, C.

AU - Bussière, A.

AU - Guillaud, J. P.

AU - Elsener, K.

AU - Lohmann, K. D.

AU - Gorodetzky, Ph

AU - Lindén, T.

AU - Tuominiemi, J.

PY - 2001

Y1 - 2001

N2 - We present results of the CERN experiment NA52 which measures Pb+Pb collisions at 158 A GeV. The topics we address are: 1. strangelet search, 2. nuclei and antinuclei production and 3. strangeness production. No strangelets have been found. We set upper limits which stretch down to the minimal values of ~ 2 10-10 for negatively and 3 10-9 for positively charged strangelets. We observed 53He near midrapidity. Nuclei and antinuclei cross sections suggest production mainly through coalescence, out of a thermalised particle source, at the time of the thermal freeze-out as witnessed by their temperature of 100-120 MeV. Charged kaons per participant nucleon (Np) show an onset of enhancement followed by saturation at Np ~ 80, corresponding approximately to an initial energy density ofi ~ 1.3 GeV/fm3. This onset may be connected to the onset of the QCD phase transition.

AB - We present results of the CERN experiment NA52 which measures Pb+Pb collisions at 158 A GeV. The topics we address are: 1. strangelet search, 2. nuclei and antinuclei production and 3. strangeness production. No strangelets have been found. We set upper limits which stretch down to the minimal values of ~ 2 10-10 for negatively and 3 10-9 for positively charged strangelets. We observed 53He near midrapidity. Nuclei and antinuclei cross sections suggest production mainly through coalescence, out of a thermalised particle source, at the time of the thermal freeze-out as witnessed by their temperature of 100-120 MeV. Charged kaons per participant nucleon (Np) show an onset of enhancement followed by saturation at Np ~ 80, corresponding approximately to an initial energy density ofi ~ 1.3 GeV/fm3. This onset may be connected to the onset of the QCD phase transition.

KW - Antimatter

KW - Quark gluon plasma

KW - Strangelets

KW - Strangeness

UR - https://www.scopus.com/pages/publications/85056452171

M3 - Conference article

AN - SCOPUS:85056452171

SN - 1824-8039

VL - 7

JO - Proceedings of Science

JF - Proceedings of Science

Y2 - 12 July 2001 through 18 July 2001

ER -

Strangelets, strangeness and antimatter: Results from the experiment NA52 at CERN

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