Kaon production in heavy ion collisions and the nuclear equation of state

Peter Senger; W. Ahner; P. Baltes; R. Barth; P. Beckerle; Ch Bormann; D. Brill; M. Cieślak; E. Grosse; W. Henning; P. Koczoń; B. Kohlmeyer; D. Miśkowiec; Ch Müntz; H. Oeschler; H. Pöppl; F. Pühlhofer; S. Sartorius; R. Schicker; E. Schwab; P. Senger; Y. Shin; J. Speer; J. Stein; R. Stock; H. Ströbele; Ch Sturm; K. Völkel; A. Wagner; W. Waluś

doi:10.1016/0375-9474(93)90694-S

Kaon production in heavy ion collisions and the nuclear equation of state

Peter Senger, W. Ahner, P. Baltes, R. Barth, P. Beckerle, Ch Bormann, D. Brill, M. Cieślak, E. Grosse, W. Henning, P. Koczoń, B. Kohlmeyer, D. Miśkowiec, Ch Müntz, H. Oeschler, H. Pöppl, F. Pühlhofer, S. Sartorius, R. Schicker, E. SchwabP. Senger, Y. Shin, J. Speer, J. Stein, R. Stock, H. Ströbele, Ch Sturm, K. Völkel, A. Wagner, W. Waluś

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Abstract

Double differential cross sections for protons, π⁺ and K⁺ are measured in Au + Au collisions at 1.0 GeV/u and Θ_lab=44°±4° with a new magnetic spectrometer at SIS. The pion spectra show an enhancement at low momenta with respect to a thermal distribution and little dependence on the collision centrality. The high-energetic pions measured in semi-central collisions at approximately midrapidity exhibit an anisotropic azimuthal angular distribution, peaking at 90° and 270° with respect to the reaction plane. The same feature is observed for protons. The kaon to proton ratio increases with the number of participating nucleons, i.e. with the centrality of the collision, whereas the pion to proton ratio stays constant. The first data on subthreshold K⁺ production in a heavy mass collision system are discussed with respect to nuclear matter properties by a comparison to microscopic transport calculations.

Original language	English
Pages (from-to)	757-762
Number of pages	6
Journal	Nuclear Physics, Section A
Volume	553
Issue number	C
DOIs	https://doi.org/10.1016/0375-9474(93)90694-S
State	Published - 1 Mar 1993
Externally published	Yes

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Senger, P., Ahner, W., Baltes, P., Barth, R., Beckerle, P., Bormann, C., Brill, D., Cieślak, M., Grosse, E., Henning, W., Koczoń, P., Kohlmeyer, B., Miśkowiec, D., Müntz, C., Oeschler, H., Pöppl, H., Pühlhofer, F., Sartorius, S., Schicker, R., ... Waluś, W. (1993). Kaon production in heavy ion collisions and the nuclear equation of state. Nuclear Physics, Section A, 553(C), 757-762. https://doi.org/10.1016/0375-9474(93)90694-S

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title = "Kaon production in heavy ion collisions and the nuclear equation of state",

abstract = "Double differential cross sections for protons, π+ and K+ are measured in Au + Au collisions at 1.0 GeV/u and Θlab=44°±4° with a new magnetic spectrometer at SIS. The pion spectra show an enhancement at low momenta with respect to a thermal distribution and little dependence on the collision centrality. The high-energetic pions measured in semi-central collisions at approximately midrapidity exhibit an anisotropic azimuthal angular distribution, peaking at 90° and 270° with respect to the reaction plane. The same feature is observed for protons. The kaon to proton ratio increases with the number of participating nucleons, i.e. with the centrality of the collision, whereas the pion to proton ratio stays constant. The first data on subthreshold K+ production in a heavy mass collision system are discussed with respect to nuclear matter properties by a comparison to microscopic transport calculations.",

author = "Peter Senger and W. Ahner and P. Baltes and R. Barth and P. Beckerle and Ch Bormann and D. Brill and M. Cie{\'s}lak and E. Grosse and W. Henning and P. Koczo{\'n} and B. Kohlmeyer and D. Mi{\'s}kowiec and Ch M{\"u}ntz and H. Oeschler and H. P{\"o}ppl and F. P{\"u}hlhofer and S. Sartorius and R. Schicker and E. Schwab and P. Senger and Y. Shin and J. Speer and J. Stein and R. Stock and H. Str{\"o}bele and Ch Sturm and K. V{\"o}lkel and A. Wagner and W. Walu{\'s}",

year = "1993",

month = mar,

day = "1",

doi = "10.1016/0375-9474(93)90694-S",

language = "English",

volume = "553",

pages = "757--762",

journal = "Nuclear Physics, Section A",

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Senger, P, Ahner, W, Baltes, P, Barth, R, Beckerle, P, Bormann, C, Brill, D, Cieślak, M, Grosse, E, Henning, W, Koczoń, P, Kohlmeyer, B, Miśkowiec, D, Müntz, C, Oeschler, H, Pöppl, H, Pühlhofer, F, Sartorius, S, Schicker, R, Schwab, E, Senger, P, Shin, Y, Speer, J, Stein, J, Stock, R, Ströbele, H, Sturm, C, Völkel, K, Wagner, A & Waluś, W 1993, 'Kaon production in heavy ion collisions and the nuclear equation of state', Nuclear Physics, Section A, vol. 553, no. C, pp. 757-762. https://doi.org/10.1016/0375-9474(93)90694-S

TY - JOUR

T1 - Kaon production in heavy ion collisions and the nuclear equation of state

AU - Senger, Peter

AU - Ahner, W.

AU - Baltes, P.

AU - Barth, R.

AU - Beckerle, P.

AU - Bormann, Ch

AU - Brill, D.

AU - Cieślak, M.

AU - Grosse, E.

AU - Henning, W.

AU - Koczoń, P.

AU - Kohlmeyer, B.

AU - Miśkowiec, D.

AU - Müntz, Ch

AU - Oeschler, H.

AU - Pöppl, H.

AU - Pühlhofer, F.

AU - Sartorius, S.

AU - Schicker, R.

AU - Schwab, E.

AU - Senger, P.

AU - Shin, Y.

AU - Speer, J.

AU - Stein, J.

AU - Stock, R.

AU - Ströbele, H.

AU - Sturm, Ch

AU - Völkel, K.

AU - Wagner, A.

AU - Waluś, W.

PY - 1993/3/1

Y1 - 1993/3/1

N2 - Double differential cross sections for protons, π+ and K+ are measured in Au + Au collisions at 1.0 GeV/u and Θlab=44°±4° with a new magnetic spectrometer at SIS. The pion spectra show an enhancement at low momenta with respect to a thermal distribution and little dependence on the collision centrality. The high-energetic pions measured in semi-central collisions at approximately midrapidity exhibit an anisotropic azimuthal angular distribution, peaking at 90° and 270° with respect to the reaction plane. The same feature is observed for protons. The kaon to proton ratio increases with the number of participating nucleons, i.e. with the centrality of the collision, whereas the pion to proton ratio stays constant. The first data on subthreshold K+ production in a heavy mass collision system are discussed with respect to nuclear matter properties by a comparison to microscopic transport calculations.

AB - Double differential cross sections for protons, π+ and K+ are measured in Au + Au collisions at 1.0 GeV/u and Θlab=44°±4° with a new magnetic spectrometer at SIS. The pion spectra show an enhancement at low momenta with respect to a thermal distribution and little dependence on the collision centrality. The high-energetic pions measured in semi-central collisions at approximately midrapidity exhibit an anisotropic azimuthal angular distribution, peaking at 90° and 270° with respect to the reaction plane. The same feature is observed for protons. The kaon to proton ratio increases with the number of participating nucleons, i.e. with the centrality of the collision, whereas the pion to proton ratio stays constant. The first data on subthreshold K+ production in a heavy mass collision system are discussed with respect to nuclear matter properties by a comparison to microscopic transport calculations.

UR - http://www.scopus.com/inward/record.url?scp=4243557830&partnerID=8YFLogxK

U2 - 10.1016/0375-9474(93)90694-S

DO - 10.1016/0375-9474(93)90694-S

M3 - Article

AN - SCOPUS:4243557830

SN - 0375-9474

VL - 553

SP - 757

EP - 762

JO - Nuclear Physics, Section A

JF - Nuclear Physics, Section A

IS - C

ER -

Kaon production in heavy ion collisions and the nuclear equation of state

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