Signals for the transition from liquid to gas in hot nuclei

V. E. Viola; T. Lefort; L. Beaulieu; K. Kwiatkowski; G. Wang; R. De Souza; L. Pienkowski; A. Botvina; H. Breuer; D. Durand; R. G. Korteling; R. Laforest; E. Martin; E. Ramakrishnan; D. Rowland; A. Ruangma; E. Winchester; S. J. Yennello

doi:10.1016/s0375-9474(00)00526-1

Signals for the transition from liquid to gas in hot nuclei

V. E. Viola
, T. Lefort
, L. Beaulieu
, K. Kwiatkowski
, G. Wang
, R. De Souza
, L. Pienkowski
, A. Botvina
, H. Breuer
, D. Durand
, R. G. Korteling
, R. Laforest
, E. Martin
, E. Ramakrishnan
, D. Rowland
, A. Ruangma
, E. Winchester
, S. J. Yennello

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

16 Scopus citations

Abstract

Hot nuclei produced in 5-15 GeV proton-, pion-and antiproton-induced reactions on ¹⁹⁷Au have been studied with the Indiana Silicon Sphere (ISiS) charged-particle detector array at the Brookhaven AGS accelerator. Each event has been reconstructed from the data to determine the excitation energy, charge and mass of the emitting source. Using E*/A as a sorting variable, the IMF kinetic energy spectra have been examined to assess the degree of thermal expansion in these reactions. Relative to SMM and SIMON-explosion calculations, the data suggest a weak extra thermal expansion energy above E*/A ≈ 5 MeV. IMF-IMF correlation functions show an order-of-magnitude decrease in the relative emission time in the interval E*/A ≈ 2-5 MeV. Above this value, a constant limiting time of 20-50 fm/c is found. These observations are consistent with the transition from liquid to vapor due to thermal heating.

Original language	English
Pages (from-to)	267-274
Number of pages	8
Journal	Nuclear Physics A
Volume	681
Issue number	1-4
DOIs	https://doi.org/10.1016/s0375-9474(00)00526-1
State	Published - Jan 29 2001

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Viola, V. E., Lefort, T., Beaulieu, L., Kwiatkowski, K., Wang, G., De Souza, R., Pienkowski, L., Botvina, A., Breuer, H., Durand, D., Korteling, R. G., Laforest, R., Martin, E., Ramakrishnan, E., Rowland, D., Ruangma, A., Winchester, E., & Yennello, S. J. (2001). Signals for the transition from liquid to gas in hot nuclei. Nuclear Physics A, 681(1-4), 267-274. https://doi.org/10.1016/s0375-9474(00)00526-1

@article{a2c5009b6762461e9784bab0ae6e4a16,

title = "Signals for the transition from liquid to gas in hot nuclei",

abstract = "Hot nuclei produced in 5-15 GeV proton-, pion-and antiproton-induced reactions on 197Au have been studied with the Indiana Silicon Sphere (ISiS) charged-particle detector array at the Brookhaven AGS accelerator. Each event has been reconstructed from the data to determine the excitation energy, charge and mass of the emitting source. Using E*/A as a sorting variable, the IMF kinetic energy spectra have been examined to assess the degree of thermal expansion in these reactions. Relative to SMM and SIMON-explosion calculations, the data suggest a weak extra thermal expansion energy above E*/A ≈ 5 MeV. IMF-IMF correlation functions show an order-of-magnitude decrease in the relative emission time in the interval E*/A ≈ 2-5 MeV. Above this value, a constant limiting time of 20-50 fm/c is found. These observations are consistent with the transition from liquid to vapor due to thermal heating.",

author = "Viola, \{V. E.\} and T. Lefort and L. Beaulieu and K. Kwiatkowski and G. Wang and \{De Souza\}, R. and L. Pienkowski and A. Botvina and H. Breuer and D. Durand and Korteling, \{R. G.\} and R. Laforest and E. Martin and E. Ramakrishnan and D. Rowland and A. Ruangma and E. Winchester and Yennello, \{S. J.\}",

year = "2001",

month = jan,

day = "29",

doi = "10.1016/s0375-9474(00)00526-1",

language = "English",

volume = "681",

pages = "267--274",

journal = "Nuclear Physics A",

issn = "0375-9474",

number = "1-4",

}

Viola, VE, Lefort, T, Beaulieu, L, Kwiatkowski, K, Wang, G, De Souza, R, Pienkowski, L, Botvina, A, Breuer, H, Durand, D, Korteling, RG, Laforest, R, Martin, E, Ramakrishnan, E, Rowland, D, Ruangma, A, Winchester, E & Yennello, SJ 2001, 'Signals for the transition from liquid to gas in hot nuclei', Nuclear Physics A, vol. 681, no. 1-4, pp. 267-274. https://doi.org/10.1016/s0375-9474(00)00526-1

TY - JOUR

T1 - Signals for the transition from liquid to gas in hot nuclei

AU - Viola, V. E.

AU - Lefort, T.

AU - Beaulieu, L.

AU - Kwiatkowski, K.

AU - Wang, G.

AU - De Souza, R.

AU - Pienkowski, L.

AU - Botvina, A.

AU - Breuer, H.

AU - Durand, D.

AU - Korteling, R. G.

AU - Laforest, R.

AU - Martin, E.

AU - Ramakrishnan, E.

AU - Rowland, D.

AU - Ruangma, A.

AU - Winchester, E.

AU - Yennello, S. J.

PY - 2001/1/29

Y1 - 2001/1/29

N2 - Hot nuclei produced in 5-15 GeV proton-, pion-and antiproton-induced reactions on 197Au have been studied with the Indiana Silicon Sphere (ISiS) charged-particle detector array at the Brookhaven AGS accelerator. Each event has been reconstructed from the data to determine the excitation energy, charge and mass of the emitting source. Using E*/A as a sorting variable, the IMF kinetic energy spectra have been examined to assess the degree of thermal expansion in these reactions. Relative to SMM and SIMON-explosion calculations, the data suggest a weak extra thermal expansion energy above E*/A ≈ 5 MeV. IMF-IMF correlation functions show an order-of-magnitude decrease in the relative emission time in the interval E*/A ≈ 2-5 MeV. Above this value, a constant limiting time of 20-50 fm/c is found. These observations are consistent with the transition from liquid to vapor due to thermal heating.

AB - Hot nuclei produced in 5-15 GeV proton-, pion-and antiproton-induced reactions on 197Au have been studied with the Indiana Silicon Sphere (ISiS) charged-particle detector array at the Brookhaven AGS accelerator. Each event has been reconstructed from the data to determine the excitation energy, charge and mass of the emitting source. Using E*/A as a sorting variable, the IMF kinetic energy spectra have been examined to assess the degree of thermal expansion in these reactions. Relative to SMM and SIMON-explosion calculations, the data suggest a weak extra thermal expansion energy above E*/A ≈ 5 MeV. IMF-IMF correlation functions show an order-of-magnitude decrease in the relative emission time in the interval E*/A ≈ 2-5 MeV. Above this value, a constant limiting time of 20-50 fm/c is found. These observations are consistent with the transition from liquid to vapor due to thermal heating.

UR - https://www.scopus.com/pages/publications/0035966758

U2 - 10.1016/s0375-9474(00)00526-1

DO - 10.1016/s0375-9474(00)00526-1

M3 - Article

AN - SCOPUS:0035966758

SN - 0375-9474

VL - 681

SP - 267

EP - 274

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 1-4

ER -

Signals for the transition from liquid to gas in hot nuclei

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