Caloric curves of hot nuclei formed in reactions induced by 50 MeV/u 129Xe and 52-95 MeV/u 36Ar projectiles

J. Péter; F. Gulminelli; Y. G. Ma; A. Siwek; F. Bocage; R. Bougault; R. Brou; J. Colin; D. Cussol; D. Durand; E. Genouin-Duhamel; R. Laforest; J. F. Lecolley; T. Lefort; O. Lopez; M. Louvel; V. Métivier; N. Le Neindre; A. D. Nguyen; J. C. Steckmeyer; B. Tamain; E. Vient; M. Assenard; P. Eudes; M. Germain; D. Gourio; J. L. Laville; T. Reposeur; G. Auger; P. Buchet; J. L. Charvet; R. Dayras; E. De Filippo; D. Doré; R. Legrain; L. Nalpas; C. Volant; J. Benlliure; A. Chbihi; A. Le Fèvre; N. Marie; G. Politi; S. Salou; F. Saint-Laurent; O. Tirel; J. P. Wieleczko; E. Bisquer; A. Demeyer; E. Galichet; E. Gerlic; D. Guinet; P. Lautesse; M. Stern; Ch O. Bacri; B. Borderie; J. D. Frankland; M. Parlog; E. Plagnol; M. F. Rivet; G. Tabacaru; L. Tassan-Got; E. Rosato

Caloric curves of hot nuclei formed in reactions induced by 50 MeV/u ¹²⁹Xe and 52-95 MeV/u ³⁶Ar projectiles

J. Péter, F. Gulminelli, Y. G. Ma, A. Siwek, F. Bocage, R. Bougault, R. Brou, J. Colin, D. Cussol, D. Durand, E. Genouin-Duhamel, R. Laforest, J. F. Lecolley, T. Lefort, O. Lopez, M. Louvel, V. Métivier, N. Le Neindre, A. D. Nguyen, J. C. SteckmeyerB. Tamain, E. Vient, M. Assenard, P. Eudes, M. Germain, D. Gourio, J. L. Laville, T. Reposeur, G. Auger, P. Buchet, J. L. Charvet, R. Dayras, E. De Filippo, D. Doré, R. Legrain, L. Nalpas, C. Volant, J. Benlliure, A. Chbihi, A. Le Fèvre, N. Marie, G. Politi, S. Salou, F. Saint-Laurent, O. Tirel, J. P. Wieleczko, E. Bisquer, A. Demeyer, E. Galichet, E. Gerlic, D. Guinet, P. Lautesse, M. Stern, Ch O. Bacri, B. Borderie, J. D. Frankland, M. Parlog, E. Plagnol, M. F. Rivet, G. Tabacaru, L. Tassan-Got, E. Rosato

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

2 Scopus citations

Abstract

The reactions ¹²⁹Xe + ¹¹⁹Sn at 50 MeV/u and ³⁶Ar + ⁵⁸Ni from 52 to 95 MeV/u were studied with the 4π array INDRA. The quasi-projectiles were reconstructed from peripheral to central collisions, and their excitation energies range from 2 to 20 MeV/nucleon. The apparent temperatures obtained from the kinetic energy distribution of light particles, from the double ratios of isotopic yields and from the relative populations of excited states, respectively, differ much from each other. Two statistical models, taking into account the detailed energy level structure of decaying primary fragments, can explain these differences. The relationship between the initial temperature and excitation energy does not exhibit any discontinuity of the caloric capacity: the liquid-gas phase transition is gradual.

Original language	English
Pages (from-to)	97-101
Number of pages	5
Journal	Revista Mexicana de Fisica
Volume	44
Issue number	SUPPL. 2
State	Published - Oct 1998

Keywords

Heavy ions
Liquid-gas phase transition
Statistical models

Cite this

Péter, J., Gulminelli, F., Ma, Y. G., Siwek, A., Bocage, F., Bougault, R., Brou, R., Colin, J., Cussol, D., Durand, D., Genouin-Duhamel, E., Laforest, R., Lecolley, J. F., Lefort, T., Lopez, O., Louvel, M., Métivier, V., Le Neindre, N., Nguyen, A. D., ... Rosato, E. (1998). Caloric curves of hot nuclei formed in reactions induced by 50 MeV/u ¹²⁹Xe and 52-95 MeV/u ³⁶Ar projectiles. Revista Mexicana de Fisica, 44(SUPPL. 2), 97-101.

@article{3fe992b7ac984f9683d615eeceb03907,

title = "Caloric curves of hot nuclei formed in reactions induced by 50 MeV/u 129Xe and 52-95 MeV/u 36Ar projectiles",

abstract = "The reactions 129Xe + 119Sn at 50 MeV/u and 36Ar + 58Ni from 52 to 95 MeV/u were studied with the 4π array INDRA. The quasi-projectiles were reconstructed from peripheral to central collisions, and their excitation energies range from 2 to 20 MeV/nucleon. The apparent temperatures obtained from the kinetic energy distribution of light particles, from the double ratios of isotopic yields and from the relative populations of excited states, respectively, differ much from each other. Two statistical models, taking into account the detailed energy level structure of decaying primary fragments, can explain these differences. The relationship between the initial temperature and excitation energy does not exhibit any discontinuity of the caloric capacity: the liquid-gas phase transition is gradual.",

keywords = "Heavy ions, Liquid-gas phase transition, Statistical models",

author = "J. P{\'e}ter and F. Gulminelli and Ma, {Y. G.} and A. Siwek and F. Bocage and R. Bougault and R. Brou and J. Colin and D. Cussol and D. Durand and E. Genouin-Duhamel and R. Laforest and Lecolley, {J. F.} and T. Lefort and O. Lopez and M. Louvel and V. M{\'e}tivier and {Le Neindre}, N. and Nguyen, {A. D.} and Steckmeyer, {J. C.} and B. Tamain and E. Vient and M. Assenard and P. Eudes and M. Germain and D. Gourio and Laville, {J. L.} and T. Reposeur and G. Auger and P. Buchet and Charvet, {J. L.} and R. Dayras and {De Filippo}, E. and D. Dor{\'e} and R. Legrain and L. Nalpas and C. Volant and J. Benlliure and A. Chbihi and {Le F{\`e}vre}, A. and N. Marie and G. Politi and S. Salou and F. Saint-Laurent and O. Tirel and Wieleczko, {J. P.} and E. Bisquer and A. Demeyer and E. Galichet and E. Gerlic and D. Guinet and P. Lautesse and M. Stern and Bacri, {Ch O.} and B. Borderie and Frankland, {J. D.} and M. Parlog and E. Plagnol and Rivet, {M. F.} and G. Tabacaru and L. Tassan-Got and E. Rosato",

year = "1998",

month = oct,

language = "English",

volume = "44",

pages = "97--101",

journal = "Revista Mexicana de Fisica",

issn = "0035-001X",

number = "SUPPL. 2",

}

Péter, J, Gulminelli, F, Ma, YG, Siwek, A, Bocage, F, Bougault, R, Brou, R, Colin, J, Cussol, D, Durand, D, Genouin-Duhamel, E, Laforest, R, Lecolley, JF, Lefort, T, Lopez, O, Louvel, M, Métivier, V, Le Neindre, N, Nguyen, AD, Steckmeyer, JC, Tamain, B, Vient, E, Assenard, M, Eudes, P, Germain, M, Gourio, D, Laville, JL, Reposeur, T, Auger, G, Buchet, P, Charvet, JL, Dayras, R, De Filippo, E, Doré, D, Legrain, R, Nalpas, L, Volant, C, Benlliure, J, Chbihi, A, Le Fèvre, A, Marie, N, Politi, G, Salou, S, Saint-Laurent, F, Tirel, O, Wieleczko, JP, Bisquer, E, Demeyer, A, Galichet, E, Gerlic, E, Guinet, D, Lautesse, P, Stern, M, Bacri, CO, Borderie, B, Frankland, JD, Parlog, M, Plagnol, E, Rivet, MF, Tabacaru, G, Tassan-Got, L & Rosato, E 1998, 'Caloric curves of hot nuclei formed in reactions induced by 50 MeV/u ¹²⁹Xe and 52-95 MeV/u ³⁶Ar projectiles', Revista Mexicana de Fisica, vol. 44, no. SUPPL. 2, pp. 97-101.

TY - JOUR

T1 - Caloric curves of hot nuclei formed in reactions induced by 50 MeV/u 129Xe and 52-95 MeV/u 36Ar projectiles

AU - Péter, J.

AU - Gulminelli, F.

AU - Ma, Y. G.

AU - Siwek, A.

AU - Bocage, F.

AU - Bougault, R.

AU - Brou, R.

AU - Colin, J.

AU - Cussol, D.

AU - Durand, D.

AU - Genouin-Duhamel, E.

AU - Laforest, R.

AU - Lecolley, J. F.

AU - Lefort, T.

AU - Lopez, O.

AU - Louvel, M.

AU - Métivier, V.

AU - Le Neindre, N.

AU - Nguyen, A. D.

AU - Steckmeyer, J. C.

AU - Tamain, B.

AU - Vient, E.

AU - Assenard, M.

AU - Eudes, P.

AU - Germain, M.

AU - Gourio, D.

AU - Laville, J. L.

AU - Reposeur, T.

AU - Auger, G.

AU - Buchet, P.

AU - Charvet, J. L.

AU - Dayras, R.

AU - De Filippo, E.

AU - Doré, D.

AU - Legrain, R.

AU - Nalpas, L.

AU - Volant, C.

AU - Benlliure, J.

AU - Chbihi, A.

AU - Le Fèvre, A.

AU - Marie, N.

AU - Politi, G.

AU - Salou, S.

AU - Saint-Laurent, F.

AU - Tirel, O.

AU - Wieleczko, J. P.

AU - Bisquer, E.

AU - Demeyer, A.

AU - Galichet, E.

AU - Gerlic, E.

AU - Guinet, D.

AU - Lautesse, P.

AU - Stern, M.

AU - Bacri, Ch O.

AU - Borderie, B.

AU - Frankland, J. D.

AU - Parlog, M.

AU - Plagnol, E.

AU - Rivet, M. F.

AU - Tabacaru, G.

AU - Tassan-Got, L.

AU - Rosato, E.

PY - 1998/10

Y1 - 1998/10

N2 - The reactions 129Xe + 119Sn at 50 MeV/u and 36Ar + 58Ni from 52 to 95 MeV/u were studied with the 4π array INDRA. The quasi-projectiles were reconstructed from peripheral to central collisions, and their excitation energies range from 2 to 20 MeV/nucleon. The apparent temperatures obtained from the kinetic energy distribution of light particles, from the double ratios of isotopic yields and from the relative populations of excited states, respectively, differ much from each other. Two statistical models, taking into account the detailed energy level structure of decaying primary fragments, can explain these differences. The relationship between the initial temperature and excitation energy does not exhibit any discontinuity of the caloric capacity: the liquid-gas phase transition is gradual.

AB - The reactions 129Xe + 119Sn at 50 MeV/u and 36Ar + 58Ni from 52 to 95 MeV/u were studied with the 4π array INDRA. The quasi-projectiles were reconstructed from peripheral to central collisions, and their excitation energies range from 2 to 20 MeV/nucleon. The apparent temperatures obtained from the kinetic energy distribution of light particles, from the double ratios of isotopic yields and from the relative populations of excited states, respectively, differ much from each other. Two statistical models, taking into account the detailed energy level structure of decaying primary fragments, can explain these differences. The relationship between the initial temperature and excitation energy does not exhibit any discontinuity of the caloric capacity: the liquid-gas phase transition is gradual.

KW - Heavy ions

KW - Liquid-gas phase transition

KW - Statistical models

UR - http://www.scopus.com/inward/record.url?scp=14244271582&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:14244271582

SN - 0035-001X

VL - 44

SP - 97

EP - 101

JO - Revista Mexicana de Fisica

JF - Revista Mexicana de Fisica

IS - SUPPL. 2

ER -

Caloric curves of hot nuclei formed in reactions induced by 50 MeV/u ¹²⁹Xe and 52-95 MeV/u ³⁶Ar projectiles

Abstract

Keywords

Other files and links

Fingerprint

Cite this