Neutral meson production in p-Be and p-Au collisions at 450 GeV beam energy

G. Agakichiev; M. Appenheimer; R. Averbeck; F. Ballester; R. Baur; A. Brenschede; J. Diaz; A. Drees; U. Faschingbauer; J. L. Ferrero; P. Fischer; Z. Fraenkel; M. Franke; Ch Fuchs; E. Gatti; P. Glässel; Th Günzel; C. P. De Los Heros; F. Hess; R. Holzmann; D. Irmscher; C. Jacob; W. Kühn; B. Lenkeit; H. Löhner; A. Marin; F. M. Marques; G. Martinez; V. Metag; M. Notheisen; R. Novotny; L. H. Olsen; R. Ostendorf; Y. Panebrattsev; A. Pfeiffer; I. Ravinovich; P. Rehak; M. Sampietro; A. Schön; J. Schukraft; Y. Schutz; S. Shimansky; A. Shor; R. S. Simon; H. J. Specht; V. Steiner; S. Tapprogge; G. Tel-Zur; I. Tserruya; Th Ullrich; H. Wilschut; J. P. Wurm; V. Yurevich

doi:10.1007/s100529800804

Neutral meson production in p-Be and p-Au collisions at 450 GeV beam energy

G. Agakichiev
, M. Appenheimer
, R. Averbeck
, F. Ballester
, R. Baur
, A. Brenschede
, J. Diaz
, A. Drees
, U. Faschingbauer
, J. L. Ferrero
, P. Fischer
, Z. Fraenkel
, M. Franke
, Ch Fuchs
, E. Gatti
, P. Glässel
, Th Günzel
, C. P. De Los Heros
, F. Hess
, R. Holzmann

D. Irmscher, C. Jacob, W. Kühn, B. Lenkeit, H. Löhner, A. Marin, F. M. Marques, G. Martinez, V. Metag, M. Notheisen, R. Novotny, L. H. Olsen, R. Ostendorf, Y. Panebrattsev, A. Pfeiffer, I. Ravinovich, P. Rehak, M. Sampietro, A. Schön, J. Schukraft, Y. Schutz, S. Shimansky, A. Shor, R. S. Simon, H. J. Specht, V. Steiner, S. Tapprogge, G. Tel-Zur, I. Tserruya, Th Ullrich, H. Wilschut, J. P. Wurm, V. Yurevich

Physics and Astronomy

Max Planck Institute for Nuclear Physics
Joint Institute for Nuclear Research
Justus Liebig University Giessen
GSI Helmholtz Centre for Heavy Ion Research
Dept. Física At. Mol. y Nuclear
Heidelberg University
Weizmann Institute of Science
Polytechnic University of Milan
University of Groningen
Grand Accelerateur National d'Ions Lourds
Brookhaven National Laboratory
CERN

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

30 Scopus citations

Abstract

In a joint experiment the TAPS and CERES collaborations have studied the production of the neutral mesons π°, η and ω in 450 GeV p-Be and p-Au collisions at the CERN SPS. The mesons were identified by their π° → γγ, η → γγ, and ω → π°γ decay modes. The cross sections were measured down to very low p_T (≥ 20 MeV/c) near mid-rapidity (3.0 < y < 4.0). The η and ω cross sections are smaller than expected from extrapolations of earlier data to low p_T Integrated over all p_T, the ratios η/π° and ω/π° are lower by about 25% compared to previously published values. The reduction may be attributed to the large number of low p_T pions from decays of heavier mesons. In addition, we have studied the dependence of neutral meson production on the mass of the nuclear target and find it in good agreement with previous measurements of charged mesons.

Original language	English
Pages (from-to)	249-257
Number of pages	9
Journal	European Physical Journal C
Volume	4
Issue number	2
DOIs	https://doi.org/10.1007/s100529800804
State	Published - 1998

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Agakichiev, G., Appenheimer, M., Averbeck, R., Ballester, F., Baur, R., Brenschede, A., Diaz, J., Drees, A., Faschingbauer, U., Ferrero, J. L., Fischer, P., Fraenkel, Z., Franke, M., Fuchs, C., Gatti, E., Glässel, P., Günzel, T., De Los Heros, C. P., Hess, F., ... Yurevich, V. (1998). Neutral meson production in p-Be and p-Au collisions at 450 GeV beam energy. European Physical Journal C, 4(2), 249-257. https://doi.org/10.1007/s100529800804

@article{337d084903d44c558c66705e8aa9a9b2,

title = "Neutral meson production in p-Be and p-Au collisions at 450 GeV beam energy",

abstract = "In a joint experiment the TAPS and CERES collaborations have studied the production of the neutral mesons π°, η and ω in 450 GeV p-Be and p-Au collisions at the CERN SPS. The mesons were identified by their π° → γγ, η → γγ, and ω → π°γ decay modes. The cross sections were measured down to very low pT (≥ 20 MeV/c) near mid-rapidity (3.0 < y < 4.0). The η and ω cross sections are smaller than expected from extrapolations of earlier data to low pT Integrated over all pT, the ratios η/π° and ω/π° are lower by about 25\% compared to previously published values. The reduction may be attributed to the large number of low pT pions from decays of heavier mesons. In addition, we have studied the dependence of neutral meson production on the mass of the nuclear target and find it in good agreement with previous measurements of charged mesons.",

author = "G. Agakichiev and M. Appenheimer and R. Averbeck and F. Ballester and R. Baur and A. Brenschede and J. Diaz and A. Drees and U. Faschingbauer and Ferrero, \{J. L.\} and P. Fischer and Z. Fraenkel and M. Franke and Ch Fuchs and E. Gatti and P. Gl{\"a}ssel and Th G{\"u}nzel and \{De Los Heros\}, \{C. P.\} and F. Hess and R. Holzmann and D. Irmscher and C. Jacob and W. K{\"u}hn and B. Lenkeit and H. L{\"o}hner and A. Marin and Marques, \{F. M.\} and G. Martinez and V. Metag and M. Notheisen and R. Novotny and Olsen, \{L. H.\} and R. Ostendorf and Y. Panebrattsev and A. Pfeiffer and I. Ravinovich and P. Rehak and M. Sampietro and A. Sch{\"o}n and J. Schukraft and Y. Schutz and S. Shimansky and A. Shor and Simon, \{R. S.\} and Specht, \{H. J.\} and V. Steiner and S. Tapprogge and G. Tel-Zur and I. Tserruya and Th Ullrich and H. Wilschut and Wurm, \{J. P.\} and V. Yurevich",

year = "1998",

doi = "10.1007/s100529800804",

language = "English",

volume = "4",

pages = "249--257",

journal = "European Physical Journal C",

issn = "1434-6044",

number = "2",

}

Agakichiev, G, Appenheimer, M, Averbeck, R, Ballester, F, Baur, R, Brenschede, A, Diaz, J, Drees, A, Faschingbauer, U, Ferrero, JL, Fischer, P, Fraenkel, Z, Franke, M, Fuchs, C, Gatti, E, Glässel, P, Günzel, T, De Los Heros, CP, Hess, F, Holzmann, R, Irmscher, D, Jacob, C, Kühn, W, Lenkeit, B, Löhner, H, Marin, A, Marques, FM, Martinez, G, Metag, V, Notheisen, M, Novotny, R, Olsen, LH, Ostendorf, R, Panebrattsev, Y, Pfeiffer, A, Ravinovich, I, Rehak, P, Sampietro, M, Schön, A, Schukraft, J, Schutz, Y, Shimansky, S, Shor, A, Simon, RS, Specht, HJ, Steiner, V, Tapprogge, S, Tel-Zur, G, Tserruya, I, Ullrich, T, Wilschut, H, Wurm, JP & Yurevich, V 1998, 'Neutral meson production in p-Be and p-Au collisions at 450 GeV beam energy', European Physical Journal C, vol. 4, no. 2, pp. 249-257. https://doi.org/10.1007/s100529800804

TY - JOUR

T1 - Neutral meson production in p-Be and p-Au collisions at 450 GeV beam energy

AU - Agakichiev, G.

AU - Appenheimer, M.

AU - Averbeck, R.

AU - Ballester, F.

AU - Baur, R.

AU - Brenschede, A.

AU - Diaz, J.

AU - Drees, A.

AU - Faschingbauer, U.

AU - Ferrero, J. L.

AU - Fischer, P.

AU - Fraenkel, Z.

AU - Franke, M.

AU - Fuchs, Ch

AU - Gatti, E.

AU - Glässel, P.

AU - Günzel, Th

AU - De Los Heros, C. P.

AU - Hess, F.

AU - Holzmann, R.

AU - Irmscher, D.

AU - Jacob, C.

AU - Kühn, W.

AU - Lenkeit, B.

AU - Löhner, H.

AU - Marin, A.

AU - Marques, F. M.

AU - Martinez, G.

AU - Metag, V.

AU - Notheisen, M.

AU - Novotny, R.

AU - Olsen, L. H.

AU - Ostendorf, R.

AU - Panebrattsev, Y.

AU - Pfeiffer, A.

AU - Ravinovich, I.

AU - Rehak, P.

AU - Sampietro, M.

AU - Schön, A.

AU - Schukraft, J.

AU - Schutz, Y.

AU - Shimansky, S.

AU - Shor, A.

AU - Simon, R. S.

AU - Specht, H. J.

AU - Steiner, V.

AU - Tapprogge, S.

AU - Tel-Zur, G.

AU - Tserruya, I.

AU - Ullrich, Th

AU - Wilschut, H.

AU - Wurm, J. P.

AU - Yurevich, V.

PY - 1998

Y1 - 1998

N2 - In a joint experiment the TAPS and CERES collaborations have studied the production of the neutral mesons π°, η and ω in 450 GeV p-Be and p-Au collisions at the CERN SPS. The mesons were identified by their π° → γγ, η → γγ, and ω → π°γ decay modes. The cross sections were measured down to very low pT (≥ 20 MeV/c) near mid-rapidity (3.0 < y < 4.0). The η and ω cross sections are smaller than expected from extrapolations of earlier data to low pT Integrated over all pT, the ratios η/π° and ω/π° are lower by about 25% compared to previously published values. The reduction may be attributed to the large number of low pT pions from decays of heavier mesons. In addition, we have studied the dependence of neutral meson production on the mass of the nuclear target and find it in good agreement with previous measurements of charged mesons.

AB - In a joint experiment the TAPS and CERES collaborations have studied the production of the neutral mesons π°, η and ω in 450 GeV p-Be and p-Au collisions at the CERN SPS. The mesons were identified by their π° → γγ, η → γγ, and ω → π°γ decay modes. The cross sections were measured down to very low pT (≥ 20 MeV/c) near mid-rapidity (3.0 < y < 4.0). The η and ω cross sections are smaller than expected from extrapolations of earlier data to low pT Integrated over all pT, the ratios η/π° and ω/π° are lower by about 25% compared to previously published values. The reduction may be attributed to the large number of low pT pions from decays of heavier mesons. In addition, we have studied the dependence of neutral meson production on the mass of the nuclear target and find it in good agreement with previous measurements of charged mesons.

UR - https://www.scopus.com/pages/publications/0009280160

U2 - 10.1007/s100529800804

DO - 10.1007/s100529800804

M3 - Article

AN - SCOPUS:0009280160

SN - 1434-6044

VL - 4

SP - 249

EP - 257

JO - European Physical Journal C

JF - European Physical Journal C

IS - 2

ER -

Neutral meson production in p-Be and p-Au collisions at 450 GeV beam energy

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