Sub-threshold φ-meson yield in central                          58                         NI +                          58                         Ni collisions

A. Mangiarotti; N. Herrmann; P. R. Maurenzig; A. Gobbi; R. Kotte; J. Kecskemeti; Y. Leifels; J. P. Alard; A. Andronic; R. Averbeck; V. Barret; Z. Basrak; N. Bastid; I. Belyaev; A. Bendarag; G. Berek; R. Čaplar; P. Crochet; A. Devismes; P. Dupieux; M. Dželalija; Ch Finck; Z. Fodor; Y. Grishkin; O. Hartmann; K. D. Hildenbrand; B. Hong; Y. J. Kim; M. Kirejczyk; P. Koczoń; M. Korolija; T. Kress; R. Kutsche; A. Lebedev; V. Manko; M. Merschmeyer; D. Moisa; A. Nianine; W. Neubert; D. Pelte; M. Petrovici; C. Plettner; F. Rami; W. Reisdorf; B. de Schauenburg; D. Schüll; Z. Seres; B. Sikora; K. S. Sim; V. Simion; K. Siwek-Wilczyńska; V. Smolyankin; M. Stockmeier; G. Stoicea; M. Vasiliev; P. Wagner; K. Wiśniewski; D. Wohlfarth; I. Yushmanov; A. Zhilin

doi:10.1016/S0375-9474(02)01366-0

Sub-threshold φ-meson yield in central ⁵⁸ NI + ⁵⁸ Ni collisions

A. Mangiarotti, N. Herrmann, P. R. Maurenzig, A. Gobbi, R. Kotte, J. Kecskemeti, Y. Leifels, J. P. Alard, A. Andronic, R. Averbeck, V. Barret, Z. Basrak, N. Bastid, I. Belyaev, A. Bendarag, G. Berek, R. Čaplar, P. Crochet, A. Devismes, P. DupieuxM. Dželalija, Ch Finck, Z. Fodor, Y. Grishkin, O. Hartmann, K. D. Hildenbrand, B. Hong, Y. J. Kim, M. Kirejczyk, P. Koczoń, M. Korolija, T. Kress, R. Kutsche, A. Lebedev, V. Manko, M. Merschmeyer, D. Moisa, A. Nianine, W. Neubert, D. Pelte, M. Petrovici, C. Plettner, F. Rami, W. Reisdorf, B. de Schauenburg, D. Schüll, Z. Seres, B. Sikora, K. S. Sim, V. Simion, K. Siwek-Wilczyńska, V. Smolyankin, M. Stockmeier, G. Stoicea, M. Vasiliev, P. Wagner, K. Wiśniewski, D. Wohlfarth, I. Yushmanov, A. Zhilin

Department of Physics

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34 Citations (Scopus)

Abstract

The φ-meson production cross section is measured for the first time at a sub-threshold energy of 1.93 AGeV in ⁵⁸ Ni + ⁵⁸ Ni central collisions. The φ data were obtained within the acceptance of the CDC/Barrel subsystem of FOPI. For a sample of 4.7 × 10 ⁶ central events, after background subtraction, 23 candidates were observed. Extensive GEANT simulations of the detector performance are shown in a thorough comparison to the real response, aiming at a good understanding of the apparatus and at a trustable determination of the efficiencies, production probability and possible systematic errors. A filter procedure is elaborated, which is meant to facilitate the comparison of any theoretical calculation or new data with the current ones. How to extrapolate the present value to a φ-meson cross section in 4π is also discussed. This result on pseudo-vector mesons can now be compared to existing experimental knowledge for the same reaction at the same incident energy for various outgoing channels, K ⁺ and K ^- included. A significant fraction (at least 20%) of the K ^- -mesons is originating in the decay of the φ, supporting the statement that the two channels are strongly correlated.

Original language	English
Pages (from-to)	89-123
Number of pages	35
Journal	Nuclear Physics A
Volume	714
Issue number	1-2
DOIs	https://doi.org/10.1016/S0375-9474(02)01366-0
Publication status	Published - 2003 Feb 10

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/S0375-9474(02)01366-0

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Mangiarotti, A., Herrmann, N., Maurenzig, P. R., Gobbi, A., Kotte, R., Kecskemeti, J., Leifels, Y., Alard, J. P., Andronic, A., Averbeck, R., Barret, V., Basrak, Z., Bastid, N., Belyaev, I., Bendarag, A., Berek, G., Čaplar, R., Crochet, P., Devismes, A., ... Zhilin, A. (2003). Sub-threshold φ-meson yield in central ⁵⁸ NI + ⁵⁸ Ni collisions Nuclear Physics A, 714(1-2), 89-123. https://doi.org/10.1016/S0375-9474(02)01366-0

Sub-threshold φ-meson yield in central ⁵⁸ NI + ⁵⁸ Ni collisions . / Mangiarotti, A.; Herrmann, N.; Maurenzig, P. R. et al.

In: Nuclear Physics A, Vol. 714, No. 1-2, 10.02.2003, p. 89-123.

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

Mangiarotti, A, Herrmann, N, Maurenzig, PR, Gobbi, A, Kotte, R, Kecskemeti, J, Leifels, Y, Alard, JP, Andronic, A, Averbeck, R, Barret, V, Basrak, Z, Bastid, N, Belyaev, I, Bendarag, A, Berek, G, Čaplar, R, Crochet, P, Devismes, A, Dupieux, P, Dželalija, M, Finck, C, Fodor, Z, Grishkin, Y, Hartmann, O, Hildenbrand, KD, Hong, B, Kim, YJ, Kirejczyk, M, Koczoń, P, Korolija, M, Kress, T, Kutsche, R, Lebedev, A, Manko, V, Merschmeyer, M, Moisa, D, Nianine, A, Neubert, W, Pelte, D, Petrovici, M, Plettner, C, Rami, F, Reisdorf, W, de Schauenburg, B, Schüll, D, Seres, Z, Sikora, B, Sim, KS, Simion, V, Siwek-Wilczyńska, K, Smolyankin, V, Stockmeier, M, Stoicea, G, Vasiliev, M, Wagner, P, Wiśniewski, K, Wohlfarth, D, Yushmanov, I & Zhilin, A 2003, ' Sub-threshold φ-meson yield in central ⁵⁸ NI + ⁵⁸ Ni collisions ', Nuclear Physics A, vol. 714, no. 1-2, pp. 89-123. https://doi.org/10.1016/S0375-9474(02)01366-0

@article{24a79cd7f9324ec8bdf8db41e652e377,

title = " Sub-threshold φ-meson yield in central 58 NI + 58 Ni collisions ",

abstract = " The φ-meson production cross section is measured for the first time at a sub-threshold energy of 1.93 AGeV in 58 Ni + 58 Ni central collisions. The φ data were obtained within the acceptance of the CDC/Barrel subsystem of FOPI. For a sample of 4.7 × 10 6 central events, after background subtraction, 23 candidates were observed. Extensive GEANT simulations of the detector performance are shown in a thorough comparison to the real response, aiming at a good understanding of the apparatus and at a trustable determination of the efficiencies, production probability and possible systematic errors. A filter procedure is elaborated, which is meant to facilitate the comparison of any theoretical calculation or new data with the current ones. How to extrapolate the present value to a φ-meson cross section in 4π is also discussed. This result on pseudo-vector mesons can now be compared to existing experimental knowledge for the same reaction at the same incident energy for various outgoing channels, K + and K - included. A significant fraction (at least 20%) of the K - -mesons is originating in the decay of the φ, supporting the statement that the two channels are strongly correlated.",

author = "A. Mangiarotti and N. Herrmann and Maurenzig, {P. R.} and A. Gobbi and R. Kotte and J. Kecskemeti and Y. Leifels and Alard, {J. P.} and A. Andronic and R. Averbeck and V. Barret and Z. Basrak and N. Bastid and I. Belyaev and A. Bendarag and G. Berek and R. {\v C}aplar and P. Crochet and A. Devismes and P. Dupieux and M. D{\v z}elalija and Ch Finck and Z. Fodor and Y. Grishkin and O. Hartmann and Hildenbrand, {K. D.} and B. Hong and Kim, {Y. J.} and M. Kirejczyk and P. Koczo{\'n} and M. Korolija and T. Kress and R. Kutsche and A. Lebedev and V. Manko and M. Merschmeyer and D. Moisa and A. Nianine and W. Neubert and D. Pelte and M. Petrovici and C. Plettner and F. Rami and W. Reisdorf and {de Schauenburg}, B. and D. Sch{\"u}ll and Z. Seres and B. Sikora and Sim, {K. S.} and V. Simion and K. Siwek-Wilczy{\'n}ska and V. Smolyankin and M. Stockmeier and G. Stoicea and M. Vasiliev and P. Wagner and K. Wi{\'s}niewski and D. Wohlfarth and I. Yushmanov and A. Zhilin",

note = "Funding Information: This work has been supported under the EC contract HPRI-CT-1999-00001 and in part by the German BMBF under contracts 06HD953, RUM-005-95/ RUM-99/010, POL-119-95, UNG-021-96 and RUS-676-98 and by the Deutsche Forschungsgemeinschaft (DFG) under projects 436-RUM-113/10/0, 436-RUS-113/143/2 and 446-KOR-113/76/0. Support has also been received from the Polish State Committee of Scientific Research, KBN, from the Hungarian OTKA under grant T029379, from the Korea Science and Engineering Foundation under grant 20015-111-01-2, from the agreement between GSI and CEA/IN2P3 and from the PROCOPE Program of DAAD.",

year = "2003",

month = feb,

day = "10",

doi = "10.1016/S0375-9474(02)01366-0",

language = "English",

volume = "714",

pages = "89--123",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - Sub-threshold φ-meson yield in central 58 NI + 58 Ni collisions

AU - Mangiarotti, A.

AU - Herrmann, N.

AU - Maurenzig, P. R.

AU - Gobbi, A.

AU - Kotte, R.

AU - Kecskemeti, J.

AU - Leifels, Y.

AU - Alard, J. P.

AU - Andronic, A.

AU - Averbeck, R.

AU - Barret, V.

AU - Basrak, Z.

AU - Bastid, N.

AU - Belyaev, I.

AU - Bendarag, A.

AU - Berek, G.

AU - Čaplar, R.

AU - Crochet, P.

AU - Devismes, A.

AU - Dupieux, P.

AU - Dželalija, M.

AU - Finck, Ch

AU - Fodor, Z.

AU - Grishkin, Y.

AU - Hartmann, O.

AU - Hildenbrand, K. D.

AU - Hong, B.

AU - Kim, Y. J.

AU - Kirejczyk, M.

AU - Koczoń, P.

AU - Korolija, M.

AU - Kress, T.

AU - Kutsche, R.

AU - Lebedev, A.

AU - Manko, V.

AU - Merschmeyer, M.

AU - Moisa, D.

AU - Nianine, A.

AU - Neubert, W.

AU - Pelte, D.

AU - Petrovici, M.

AU - Plettner, C.

AU - Rami, F.

AU - Reisdorf, W.

AU - de Schauenburg, B.

AU - Schüll, D.

AU - Seres, Z.

AU - Sikora, B.

AU - Sim, K. S.

AU - Simion, V.

AU - Siwek-Wilczyńska, K.

AU - Smolyankin, V.

AU - Stockmeier, M.

AU - Stoicea, G.

AU - Vasiliev, M.

AU - Wagner, P.

AU - Wiśniewski, K.

AU - Wohlfarth, D.

AU - Yushmanov, I.

AU - Zhilin, A.

N1 - Funding Information: This work has been supported under the EC contract HPRI-CT-1999-00001 and in part by the German BMBF under contracts 06HD953, RUM-005-95/ RUM-99/010, POL-119-95, UNG-021-96 and RUS-676-98 and by the Deutsche Forschungsgemeinschaft (DFG) under projects 436-RUM-113/10/0, 436-RUS-113/143/2 and 446-KOR-113/76/0. Support has also been received from the Polish State Committee of Scientific Research, KBN, from the Hungarian OTKA under grant T029379, from the Korea Science and Engineering Foundation under grant 20015-111-01-2, from the agreement between GSI and CEA/IN2P3 and from the PROCOPE Program of DAAD.

PY - 2003/2/10

Y1 - 2003/2/10

N2 - The φ-meson production cross section is measured for the first time at a sub-threshold energy of 1.93 AGeV in 58 Ni + 58 Ni central collisions. The φ data were obtained within the acceptance of the CDC/Barrel subsystem of FOPI. For a sample of 4.7 × 10 6 central events, after background subtraction, 23 candidates were observed. Extensive GEANT simulations of the detector performance are shown in a thorough comparison to the real response, aiming at a good understanding of the apparatus and at a trustable determination of the efficiencies, production probability and possible systematic errors. A filter procedure is elaborated, which is meant to facilitate the comparison of any theoretical calculation or new data with the current ones. How to extrapolate the present value to a φ-meson cross section in 4π is also discussed. This result on pseudo-vector mesons can now be compared to existing experimental knowledge for the same reaction at the same incident energy for various outgoing channels, K + and K - included. A significant fraction (at least 20%) of the K - -mesons is originating in the decay of the φ, supporting the statement that the two channels are strongly correlated.

AB - The φ-meson production cross section is measured for the first time at a sub-threshold energy of 1.93 AGeV in 58 Ni + 58 Ni central collisions. The φ data were obtained within the acceptance of the CDC/Barrel subsystem of FOPI. For a sample of 4.7 × 10 6 central events, after background subtraction, 23 candidates were observed. Extensive GEANT simulations of the detector performance are shown in a thorough comparison to the real response, aiming at a good understanding of the apparatus and at a trustable determination of the efficiencies, production probability and possible systematic errors. A filter procedure is elaborated, which is meant to facilitate the comparison of any theoretical calculation or new data with the current ones. How to extrapolate the present value to a φ-meson cross section in 4π is also discussed. This result on pseudo-vector mesons can now be compared to existing experimental knowledge for the same reaction at the same incident energy for various outgoing channels, K + and K - included. A significant fraction (at least 20%) of the K - -mesons is originating in the decay of the φ, supporting the statement that the two channels are strongly correlated.

UR - http://www.scopus.com/inward/record.url?scp=0037429002&partnerID=8YFLogxK

U2 - 10.1016/S0375-9474(02)01366-0

DO - 10.1016/S0375-9474(02)01366-0

M3 - Article

AN - SCOPUS:0037429002

SN - 0375-9474

VL - 714

SP - 89

EP - 123

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 1-2

ER -

Sub-threshold φ-meson yield in central ⁵⁸ NI + ⁵⁸ Ni collisions

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