Abundance of Δ resonances in 58Ni + 58Ni collisions between 1 and 2 AGeV

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

doi:10.1016/S0370-2693(97)00707-7

Abundance of Δ resonances in ⁵⁸Ni + ⁵⁸Ni collisions between 1 and 2 AGeV

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

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

65 Citations (Scopus)

Abstract

Charged pion spectra measured in ⁵⁸Ni-⁵⁸Ni collisions at 1.06, 1.45 and 1.93 AGeV are interpreted in terms of a thermal model including the decay of Δ resonances. The transverse momentum spectra of pions are well reproduced by adding the pions originating from the Δ -resonance decay to the component of thermal pions, deduced from the high transverse momentum part of the pion spectra. About 10 and 18% of the nucleons are excited to Δ states at freeze-out for beam energies of 1 and 2 AGeV, respectively.

Original language	English
Pages (from-to)	115-120
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	407
Issue number	2
DOIs	https://doi.org/10.1016/S0370-2693(97)00707-7
Publication status	Published - 1997 Aug 28
Externally published	Yes

Keywords

Freeze-out
Pion
Thermal model
δResonance

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/S0370-2693(97)00707-7

Cite this

Hong, B., Herrmann, N., Ritman, J. L., Best, D., Gobbi, A., Hildenbrand, K. D., Kirejczyk, M., Leifels, Y., Pinkenburg, C., Reisdorf, W., Schüll, D., Sodan, U., Wang, O. S., Wienold, T., Alard, J. P., Amouroux, V., Bastid, N., Belyaev, I., Berek, G., ... Zhilin, A. (1997). Abundance of Δ resonances in ⁵⁸Ni + ⁵⁸Ni collisions between 1 and 2 AGeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 407(2), 115-120. https://doi.org/10.1016/S0370-2693(97)00707-7

Abundance of Δ resonances in ⁵⁸Ni + ⁵⁸Ni collisions between 1 and 2 AGeV. / Hong, B.; Herrmann, N.; Ritman, J. L.; Best, D.; Gobbi, A.; Hildenbrand, K. D.; Kirejczyk, M.; Leifels, Y.; Pinkenburg, C.; Reisdorf, W.; Schüll, D.; Sodan, U.; Wang, O. S.; Wienold, T.; Alard, J. P.; Amouroux, V.; Bastid, N.; Belyaev, I.; Berek, G.; Biegansky, J.; Buta, A.; Coffin, J. P.; Crochet, P.; Dona, R.; Dupieux, P.; Eskef, M.; Fintz, P.; Fodor, Z.; Fraysse, L.; Genoux-Lubain, A.; Goebels, G.; Guillaume, G.; Häfele, E.; Jundt, F.; Kecskemeti, J.; Korolija, M.; Kotte, R.; Kuhn, C.; Lebedev, A.; Legrand, I.; Maazouzi, C.; Manko, V.; Mösner, J.; Mohren, S.; Neubert, W.; Pelte, D.; Petrovici, M.; Pras, P.; Rami, F.; Roy, C.; Seres, Z.; Sikora, B.; Simion, V.; Siwek-Wilczyńska, K.; Somov, A.; Tizniti, L.; Trzaska, M.; Vasiliev, M. A.; Wagner, P.; Wohlfarth, D.; Zhilin, A.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 407, No. 2, 28.08.1997, p. 115-120.

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

Hong, B, Herrmann, N, Ritman, JL, Best, D, Gobbi, A, Hildenbrand, KD, Kirejczyk, M, Leifels, Y, Pinkenburg, C, Reisdorf, W, Schüll, D, Sodan, U, Wang, OS, Wienold, T, Alard, JP, Amouroux, V, Bastid, N, Belyaev, I, Berek, G, Biegansky, J, Buta, A, Coffin, JP, Crochet, P, Dona, R, Dupieux, P, Eskef, M, Fintz, P, Fodor, Z, Fraysse, L, Genoux-Lubain, A, Goebels, G, Guillaume, G, Häfele, E, Jundt, F, Kecskemeti, J, Korolija, M, Kotte, R, Kuhn, C, Lebedev, A, Legrand, I, Maazouzi, C, Manko, V, Mösner, J, Mohren, S, Neubert, W, Pelte, D, Petrovici, M, Pras, P, Rami, F, Roy, C, Seres, Z, Sikora, B, Simion, V, Siwek-Wilczyńska, K, Somov, A, Tizniti, L, Trzaska, M, Vasiliev, MA, Wagner, P, Wohlfarth, D & Zhilin, A 1997, 'Abundance of Δ resonances in ⁵⁸Ni + ⁵⁸Ni collisions between 1 and 2 AGeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 407, no. 2, pp. 115-120. https://doi.org/10.1016/S0370-2693(97)00707-7

Hong, B. ; Herrmann, N. ; Ritman, J. L. ; Best, D. ; Gobbi, A. ; Hildenbrand, K. D. ; Kirejczyk, M. ; Leifels, Y. ; Pinkenburg, C. ; Reisdorf, W. ; Schüll, D. ; Sodan, U. ; Wang, O. S. ; Wienold, T. ; Alard, J. P. ; Amouroux, V. ; Bastid, N. ; Belyaev, I. ; Berek, G. ; Biegansky, J. ; Buta, A. ; Coffin, J. P. ; Crochet, P. ; Dona, R. ; Dupieux, P. ; Eskef, M. ; Fintz, P. ; Fodor, Z. ; Fraysse, L. ; Genoux-Lubain, A. ; Goebels, G. ; Guillaume, G. ; Häfele, E. ; Jundt, F. ; Kecskemeti, J. ; Korolija, M. ; Kotte, R. ; Kuhn, C. ; Lebedev, A. ; Legrand, I. ; Maazouzi, C. ; Manko, V. ; Mösner, J. ; Mohren, S. ; Neubert, W. ; Pelte, D. ; Petrovici, M. ; Pras, P. ; Rami, F. ; Roy, C. ; Seres, Z. ; Sikora, B. ; Simion, V. ; Siwek-Wilczyńska, K. ; Somov, A. ; Tizniti, L. ; Trzaska, M. ; Vasiliev, M. A. ; Wagner, P. ; Wohlfarth, D. ; Zhilin, A. / Abundance of Δ resonances in ⁵⁸Ni + ⁵⁸Ni collisions between 1 and 2 AGeV. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 1997 ; Vol. 407, No. 2. pp. 115-120.

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title = "Abundance of Δ resonances in 58Ni + 58Ni collisions between 1 and 2 AGeV",

abstract = "Charged pion spectra measured in 58Ni-58Ni collisions at 1.06, 1.45 and 1.93 AGeV are interpreted in terms of a thermal model including the decay of Δ resonances. The transverse momentum spectra of pions are well reproduced by adding the pions originating from the Δ -resonance decay to the component of thermal pions, deduced from the high transverse momentum part of the pion spectra. About 10 and 18% of the nucleons are excited to Δ states at freeze-out for beam energies of 1 and 2 AGeV, respectively.",

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AU - Herrmann, N.

AU - Ritman, J. L.

AU - Best, D.

AU - Gobbi, A.

AU - Hildenbrand, K. D.

AU - Kirejczyk, M.

AU - Leifels, Y.

AU - Pinkenburg, C.

AU - Reisdorf, W.

AU - Schüll, D.

AU - Sodan, U.

AU - Wang, O. S.

AU - Wienold, T.

AU - Alard, J. P.

AU - Amouroux, V.

AU - Bastid, N.

AU - Belyaev, I.

AU - Berek, G.

AU - Biegansky, J.

AU - Buta, A.

AU - Coffin, J. P.

AU - Crochet, P.

AU - Dona, R.

AU - Dupieux, P.

AU - Eskef, M.

AU - Fintz, P.

AU - Fodor, Z.

AU - Fraysse, L.

AU - Genoux-Lubain, A.

AU - Goebels, G.

AU - Guillaume, G.

AU - Häfele, E.

AU - Jundt, F.

AU - Kecskemeti, J.

AU - Korolija, M.

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 - 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 - Somov, A.

AU - Tizniti, L.

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AU - Vasiliev, M. A.

AU - Wagner, P.

AU - Wohlfarth, D.

AU - Zhilin, A.

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N2 - Charged pion spectra measured in 58Ni-58Ni collisions at 1.06, 1.45 and 1.93 AGeV are interpreted in terms of a thermal model including the decay of Δ resonances. The transverse momentum spectra of pions are well reproduced by adding the pions originating from the Δ -resonance decay to the component of thermal pions, deduced from the high transverse momentum part of the pion spectra. About 10 and 18% of the nucleons are excited to Δ states at freeze-out for beam energies of 1 and 2 AGeV, respectively.

AB - Charged pion spectra measured in 58Ni-58Ni collisions at 1.06, 1.45 and 1.93 AGeV are interpreted in terms of a thermal model including the decay of Δ resonances. The transverse momentum spectra of pions are well reproduced by adding the pions originating from the Δ -resonance decay to the component of thermal pions, deduced from the high transverse momentum part of the pion spectra. About 10 and 18% of the nucleons are excited to Δ states at freeze-out for beam energies of 1 and 2 AGeV, respectively.

KW - Freeze-out

KW - Pion

KW - Thermal model

KW - δResonance

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