K+ production in the reaction 58Ni+58Ni at incident energies from 1 to 2 a GeV

D. Best; N. Herrmann; B. Hong; M. Kirejczyk; J. Ritman; K. Wisniewski; A. Zhilin; A. Gobbi; K. D. Hildenbrand; Y. Leifels; C. Pinkenburg; W. Reisdorf; D. Schüll; U. Sodan; G. S. Wang; T. Wienold; J. P. Alard; V. Amouroux; N. Bastid; I. Belyaev; G. Berek; J. Biegansky; R. Cherbatchev; J. P. Coffin; P. Crochet; P. Dupieux; Z. Fodor; A. Genoux-Lubain; G. Goebels; G. Guillaume; E. Häfele; F. Jundt; J. Kecskemeti; Y. Korchagin; R. Kotte; C. Kuhn; A. Lebedev; A. Lebedev; I. Legrand; C. Maazouzi; V. Manko; J. Mösner; S. Mohren; D. Moisa; W. Neubert; D. Pelte; M. Petrovici; P. Pras; F. Rami; C. Roy; Z. Seres; B. Sikora; V. Simion; K. Siwek-Wilczyńska; V. Smolyankin; A. Somov; L. Tizniti; M. Trzaska; M. A. Vasiliev; P. Wagner; D. Wohlfarth; I. Yushmanov

doi:10.1016/S0375-9474(97)00409-0

K⁺ production in the reaction ⁵⁸Ni+⁵⁸Ni at incident energies from 1 to 2 a GeV

D. Best, N. Herrmann, B. Hong, M. Kirejczyk, J. Ritman, K. Wisniewski, A. Zhilin, A. Gobbi, K. D. Hildenbrand, Y. Leifels, C. Pinkenburg, W. Reisdorf, D. Schüll, U. Sodan, G. S. Wang, T. Wienold, J. P. Alard, V. Amouroux, N. Bastid, I. BelyaevG. Berek, J. Biegansky, R. Cherbatchev, J. P. Coffin, P. Crochet, P. Dupieux, Z. Fodor, A. Genoux-Lubain, G. Goebels, G. Guillaume, E. Häfele, F. Jundt, J. Kecskemeti, Y. Korchagin, R. Kotte, C. Kuhn, A. Lebedev, A. Lebedev, I. Legrand, C. Maazouzi, V. Manko, J. Mösner, S. Mohren, D. Moisa, W. Neubert, D. Pelte, M. Petrovici, P. Pras, F. Rami, C. Roy, Z. Seres, B. Sikora, V. Simion, K. Siwek-Wilczyńska, V. Smolyankin, A. Somov, L. Tizniti, M. Trzaska, M. A. Vasiliev, P. Wagner, D. Wohlfarth, I. Yushmanov

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

82 Citations (Scopus)

Abstract

Semi-inclusive triple differential multiplicity distributions of positively charged kaons have been measured over a wide range in rapidity and transverse mass for central collisions of ⁵⁸Ni with ⁵⁸Ni nuclei. The transverse mass (m_t) spectra have been studied as a function of rapidity at a beam energy 1.93 A GeV. The m_t distributions of K⁺ mesons are well described by a single Boltzmann-type function. The spectral slopes are similar to that of the protons indicating that rescattering plays a significant role in the propagation of the kaon. Multiplicity densities have been obtained as a function of rapidity by extrapolating the Boltzmann-type fits to the measured distributions over the remaining phase space. The total K⁺ meson yield has been determined at beam energies of 1.06, 1.45, and 1.93 A GeV, and is presented in comparison to existing data. The low total yield indicates that the K⁺ meson can not be explained within a hadro-chemical equilibrium scenario, therefore indicating that the yield does remain sensitive to effects related to its production processes such as the equation of state of nuclear matter and/or modifications to the K⁺ dispersion relation.

Original language	English
Pages (from-to)	307-324
Number of pages	18
Journal	Nuclear Physics A
Volume	625
Issue number	1-2
DOIs	https://doi.org/10.1016/S0375-9474(97)00409-0
Publication status	Published - 1997 Oct 27
Externally published	Yes

Keywords

Kaon
Radial flow
Thermal model

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/S0375-9474(97)00409-0

Cite this

Best, D., Herrmann, N., Hong, B., Kirejczyk, M., Ritman, J., Wisniewski, K., Zhilin, A., Gobbi, A., Hildenbrand, K. D., Leifels, Y., Pinkenburg, C., Reisdorf, W., Schüll, D., Sodan, U., Wang, G. S., Wienold, T., Alard, J. P., Amouroux, V., Bastid, N., ... Yushmanov, I. (1997). K⁺ production in the reaction ⁵⁸Ni+⁵⁸Ni at incident energies from 1 to 2 a GeV. Nuclear Physics A, 625(1-2), 307-324. https://doi.org/10.1016/S0375-9474(97)00409-0

Best, D, Herrmann, N, Hong, B, Kirejczyk, M, Ritman, J, Wisniewski, K, Zhilin, A, Gobbi, A, Hildenbrand, KD, Leifels, Y, Pinkenburg, C, Reisdorf, W, Schüll, D, Sodan, U, Wang, GS, Wienold, T, Alard, JP, Amouroux, V, Bastid, N, Belyaev, I, Berek, G, Biegansky, J, Cherbatchev, R, Coffin, JP, Crochet, P, Dupieux, P, Fodor, Z, Genoux-Lubain, A, Goebels, G, Guillaume, G, Häfele, E, Jundt, F, Kecskemeti, J, Korchagin, Y, Kotte, R, Kuhn, C, Lebedev, A, Lebedev, A, Legrand, I, Maazouzi, C, Manko, V, Mösner, J, Mohren, S, Moisa, D, Neubert, W, Pelte, D, Petrovici, M, Pras, P, Rami, F, Roy, C, Seres, Z, Sikora, B, Simion, V, Siwek-Wilczyńska, K, Smolyankin, V, Somov, A, Tizniti, L, Trzaska, M, Vasiliev, MA, Wagner, P, Wohlfarth, D & Yushmanov, I 1997, 'K⁺ production in the reaction ⁵⁸Ni+⁵⁸Ni at incident energies from 1 to 2 a GeV', Nuclear Physics A, vol. 625, no. 1-2, pp. 307-324. https://doi.org/10.1016/S0375-9474(97)00409-0

@article{7cce846c12ba4804bfaa51cbe154be80,

title = "K+ production in the reaction 58Ni+58Ni at incident energies from 1 to 2 a GeV",

abstract = "Semi-inclusive triple differential multiplicity distributions of positively charged kaons have been measured over a wide range in rapidity and transverse mass for central collisions of 58Ni with 58Ni nuclei. The transverse mass (mt) spectra have been studied as a function of rapidity at a beam energy 1.93 A GeV. The mt distributions of K+ mesons are well described by a single Boltzmann-type function. The spectral slopes are similar to that of the protons indicating that rescattering plays a significant role in the propagation of the kaon. Multiplicity densities have been obtained as a function of rapidity by extrapolating the Boltzmann-type fits to the measured distributions over the remaining phase space. The total K+ meson yield has been determined at beam energies of 1.06, 1.45, and 1.93 A GeV, and is presented in comparison to existing data. The low total yield indicates that the K+ meson can not be explained within a hadro-chemical equilibrium scenario, therefore indicating that the yield does remain sensitive to effects related to its production processes such as the equation of state of nuclear matter and/or modifications to the K+ dispersion relation.",

keywords = "Kaon, Radial flow, Thermal model",

author = "D. Best and N. Herrmann and B. Hong and M. Kirejczyk and J. Ritman and K. Wisniewski and A. Zhilin and A. Gobbi and Hildenbrand, {K. D.} and Y. Leifels and C. Pinkenburg and W. Reisdorf and D. Sch{\"u}ll and U. Sodan and Wang, {G. S.} and T. Wienold and Alard, {J. P.} and V. Amouroux and N. Bastid and I. Belyaev and G. Berek and J. Biegansky and R. Cherbatchev and Coffin, {J. P.} and P. Crochet and P. Dupieux and Z. Fodor and A. Genoux-Lubain and G. Goebels and G. Guillaume and E. H{\"a}fele and F. Jundt and J. Kecskemeti and Y. Korchagin and R. Kotte and C. Kuhn and A. Lebedev and A. Lebedev and I. Legrand and C. Maazouzi and V. Manko and J. M{\"o}sner and S. Mohren and D. Moisa and W. Neubert and D. Pelte and M. Petrovici and P. Pras and F. Rami and C. Roy and Z. Seres and B. Sikora and V. Simion and K. Siwek-Wilczy{\'n}ska and V. Smolyankin and A. Somov and L. Tizniti and M. Trzaska and Vasiliev, {M. A.} and P. Wagner and D. Wohlfarth and I. Yushmanov",

note = "Funding Information: Furthermorwee gratefullya cknowledgteh em anyu sefuld iscussionws ithG.E. Brown, C. HartnackS, .W. Huang,G .Q. Li, and P. Senger,a s well as the importanct omments from P. Braun-Munzinger. This work has beens upporteidn partb y the GermanB undesrninisteriufamr Forschung und Technologiuen derc ontract0s6 HD 525 1( 3), X051.25/RUM-005-9a5n dX081.25/ N-119-95a nd by the Polish StateC ommitteoef ScientificR esearch(K BN) underg rants 2 P302 1104 and 2 P03B 019 ll.",

year = "1997",

month = oct,

day = "27",

doi = "10.1016/S0375-9474(97)00409-0",

language = "English",

volume = "625",

pages = "307--324",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - K+ production in the reaction 58Ni+58Ni at incident energies from 1 to 2 a GeV

AU - Best, D.

AU - Herrmann, N.

AU - Hong, B.

AU - Kirejczyk, M.

AU - Ritman, J.

AU - Wisniewski, K.

AU - Zhilin, A.

AU - Gobbi, A.

AU - Hildenbrand, K. D.

AU - Leifels, Y.

AU - Pinkenburg, C.

AU - Reisdorf, W.

AU - Schüll, D.

AU - Sodan, U.

AU - Wang, G. S.

AU - Wienold, T.

AU - Alard, J. P.

AU - Amouroux, V.

AU - Bastid, N.

AU - Belyaev, I.

AU - Berek, G.

AU - Biegansky, J.

AU - Cherbatchev, R.

AU - Coffin, J. P.

AU - Crochet, P.

AU - Dupieux, P.

AU - Fodor, Z.

AU - Genoux-Lubain, A.

AU - Goebels, G.

AU - Guillaume, G.

AU - Häfele, E.

AU - Jundt, F.

AU - Kecskemeti, J.

AU - Korchagin, Y.

AU - Kotte, R.

AU - Kuhn, C.

AU - Lebedev, A.

AU - Legrand, I.

AU - Maazouzi, C.

AU - Manko, V.

AU - Mösner, J.

AU - Mohren, S.

AU - Moisa, D.

AU - Neubert, W.

AU - Pelte, D.

AU - Petrovici, M.

AU - Pras, P.

AU - Rami, F.

AU - Roy, C.

AU - Seres, Z.

AU - Sikora, B.

AU - Simion, V.

AU - Siwek-Wilczyńska, K.

AU - Smolyankin, V.

AU - Somov, A.

AU - Tizniti, L.

AU - Trzaska, M.

AU - Vasiliev, M. A.

AU - Wagner, P.

AU - Wohlfarth, D.

AU - Yushmanov, I.

N1 - Funding Information: Furthermorwee gratefullya cknowledgteh em anyu sefuld iscussionws ithG.E. Brown, C. HartnackS, .W. Huang,G .Q. Li, and P. Senger,a s well as the importanct omments from P. Braun-Munzinger. This work has beens upporteidn partb y the GermanB undesrninisteriufamr Forschung und Technologiuen derc ontract0s6 HD 525 1( 3), X051.25/RUM-005-9a5n dX081.25/ N-119-95a nd by the Polish StateC ommitteoef ScientificR esearch(K BN) underg rants 2 P302 1104 and 2 P03B 019 ll.

PY - 1997/10/27

Y1 - 1997/10/27

N2 - Semi-inclusive triple differential multiplicity distributions of positively charged kaons have been measured over a wide range in rapidity and transverse mass for central collisions of 58Ni with 58Ni nuclei. The transverse mass (mt) spectra have been studied as a function of rapidity at a beam energy 1.93 A GeV. The mt distributions of K+ mesons are well described by a single Boltzmann-type function. The spectral slopes are similar to that of the protons indicating that rescattering plays a significant role in the propagation of the kaon. Multiplicity densities have been obtained as a function of rapidity by extrapolating the Boltzmann-type fits to the measured distributions over the remaining phase space. The total K+ meson yield has been determined at beam energies of 1.06, 1.45, and 1.93 A GeV, and is presented in comparison to existing data. The low total yield indicates that the K+ meson can not be explained within a hadro-chemical equilibrium scenario, therefore indicating that the yield does remain sensitive to effects related to its production processes such as the equation of state of nuclear matter and/or modifications to the K+ dispersion relation.

AB - Semi-inclusive triple differential multiplicity distributions of positively charged kaons have been measured over a wide range in rapidity and transverse mass for central collisions of 58Ni with 58Ni nuclei. The transverse mass (mt) spectra have been studied as a function of rapidity at a beam energy 1.93 A GeV. The mt distributions of K+ mesons are well described by a single Boltzmann-type function. The spectral slopes are similar to that of the protons indicating that rescattering plays a significant role in the propagation of the kaon. Multiplicity densities have been obtained as a function of rapidity by extrapolating the Boltzmann-type fits to the measured distributions over the remaining phase space. The total K+ meson yield has been determined at beam energies of 1.06, 1.45, and 1.93 A GeV, and is presented in comparison to existing data. The low total yield indicates that the K+ meson can not be explained within a hadro-chemical equilibrium scenario, therefore indicating that the yield does remain sensitive to effects related to its production processes such as the equation of state of nuclear matter and/or modifications to the K+ dispersion relation.

KW - Kaon

KW - Radial flow

KW - Thermal model

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U2 - 10.1016/S0375-9474(97)00409-0

DO - 10.1016/S0375-9474(97)00409-0

M3 - Article

AN - SCOPUS:0031588308

VL - 625

SP - 307

EP - 324

JO - Nuclear Physics A

JF - Nuclear Physics A

SN - 0375-9474

IS - 1-2

ER -