Constraints on the time scale of nuclear breakup from thermal hard-photon emission

R. Ortega; D. d' Enterria; G. Martinez; D. Baiborodin; H. Delagrange; J. Diaz; F. Fernandez; H. Löhner; T. Matulewicz; R.W. Ostendorf; S. Schadmand; Y. Schutz; P. Tlusty; R. Turrisi; V. Wagner; H.W.E.M. Wilschut; N. Yahlali

doi:10.1140/epja/i2005-10277-9

Constraints on the time scale of nuclear breakup from thermal hard-photon emission

R. Ortega^*, D. d' Enterria, G. Martinez, D. Baiborodin, H. Delagrange, J. Diaz, F. Fernandez, H. Löhner, T. Matulewicz, R.W. Ostendorf, S. Schadmand, Y. Schutz, P. Tlusty, R. Turrisi, V. Wagner, H.W.E.M. Wilschut, N. Yahlali

^*Corresponding author for this work

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

11 Citations (Scopus)

Abstract

Measured hard-photon multiplicities from second-chance nucleon-nucleon collisions are used in combination with a kinetic thermal model to estimate the breakup times of excited nuclear systems produced in nucleus-nucleus reactions at intermediate energies. The obtained nuclear breakup time for the (129)Xe + (nat)Sn reaction at 50 A MeV is Delta tau approximate to 100-300 fm/c for all reaction centralities. The lifetime of the radiating sources produced in seven other different heavy-ion reactions studied by the TAPS experiment is consistent with Delta tau approximate to 100 fm/c, such relatively long thermal photon emission times do not seemingly support the interpretation of nuclear breakup as due to a fast spinodal process for the heavy nuclear systems studied.

Original language	English
Pages (from-to)	161-171
Number of pages	11
Journal	European Physical Journal A
Volume	28
Issue number	2
DOIs	https://doi.org/10.1140/epja/i2005-10277-9
Publication status	Published - May-2006

Keywords

HEAVY-ION COLLISIONS
GIANT-DIPOLE RESONANCE
GAS PHASE-TRANSITION
BREMSSTRAHLUNG PHOTONS
COLLECTIVE MOTION
IMPACT PARAMETER
FERMI ENERGY
HOT NUCLEI
MULTIFRAGMENTATION
MASS

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Constraints on the time scale of nuclear breakup from thermal
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Ortega, R., d' Enterria, D., Martinez, G., Baiborodin, D., Delagrange, H., Diaz, J., Fernandez, F., Löhner, H., Matulewicz, T., Ostendorf, R. W., Schadmand, S., Schutz, Y., Tlusty, P., Turrisi, R., Wagner, V., Wilschut, H. W. E. M., & Yahlali, N. (2006). Constraints on the time scale of nuclear breakup from thermal hard-photon emission. European Physical Journal A, 28(2), 161-171. https://doi.org/10.1140/epja/i2005-10277-9

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title = "Constraints on the time scale of nuclear breakup from thermal hard-photon emission",

abstract = "Measured hard-photon multiplicities from second-chance nucleon-nucleon collisions are used in combination with a kinetic thermal model to estimate the breakup times of excited nuclear systems produced in nucleus-nucleus reactions at intermediate energies. The obtained nuclear breakup time for the (129)Xe + (nat)Sn reaction at 50 A MeV is Delta tau approximate to 100-300 fm/c for all reaction centralities. The lifetime of the radiating sources produced in seven other different heavy-ion reactions studied by the TAPS experiment is consistent with Delta tau approximate to 100 fm/c, such relatively long thermal photon emission times do not seemingly support the interpretation of nuclear breakup as due to a fast spinodal process for the heavy nuclear systems studied.",

keywords = "HEAVY-ION COLLISIONS, GIANT-DIPOLE RESONANCE, GAS PHASE-TRANSITION, BREMSSTRAHLUNG PHOTONS, COLLECTIVE MOTION, IMPACT PARAMETER, FERMI ENERGY, HOT NUCLEI, MULTIFRAGMENTATION, MASS",

author = "R. Ortega and {d' Enterria}, D. and G. Martinez and D. Baiborodin and H. Delagrange and J. Diaz and F. Fernandez and H. L{\"o}hner and T. Matulewicz and R.W. Ostendorf and S. Schadmand and Y. Schutz and P. Tlusty and R. Turrisi and V. Wagner and H.W.E.M. Wilschut and N. Yahlali",

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Ortega, R, d' Enterria, D, Martinez, G, Baiborodin, D, Delagrange, H, Diaz, J, Fernandez, F, Löhner, H, Matulewicz, T, Ostendorf, RW, Schadmand, S, Schutz, Y, Tlusty, P, Turrisi, R, Wagner, V, Wilschut, HWEM & Yahlali, N 2006, 'Constraints on the time scale of nuclear breakup from thermal hard-photon emission', European Physical Journal A, vol. 28, no. 2, pp. 161-171. https://doi.org/10.1140/epja/i2005-10277-9

TY - JOUR

T1 - Constraints on the time scale of nuclear breakup from thermal hard-photon emission

AU - Ortega, R.

AU - d' Enterria, D.

AU - Martinez, G.

AU - Baiborodin, D.

AU - Delagrange, H.

AU - Diaz, J.

AU - Fernandez, F.

AU - Löhner, H.

AU - Matulewicz, T.

AU - Ostendorf, R.W.

AU - Schadmand, S.

AU - Schutz, Y.

AU - Tlusty, P.

AU - Turrisi, R.

AU - Wagner, V.

AU - Wilschut, H.W.E.M.

AU - Yahlali, N.

PY - 2006/5

Y1 - 2006/5

N2 - Measured hard-photon multiplicities from second-chance nucleon-nucleon collisions are used in combination with a kinetic thermal model to estimate the breakup times of excited nuclear systems produced in nucleus-nucleus reactions at intermediate energies. The obtained nuclear breakup time for the (129)Xe + (nat)Sn reaction at 50 A MeV is Delta tau approximate to 100-300 fm/c for all reaction centralities. The lifetime of the radiating sources produced in seven other different heavy-ion reactions studied by the TAPS experiment is consistent with Delta tau approximate to 100 fm/c, such relatively long thermal photon emission times do not seemingly support the interpretation of nuclear breakup as due to a fast spinodal process for the heavy nuclear systems studied.

AB - Measured hard-photon multiplicities from second-chance nucleon-nucleon collisions are used in combination with a kinetic thermal model to estimate the breakup times of excited nuclear systems produced in nucleus-nucleus reactions at intermediate energies. The obtained nuclear breakup time for the (129)Xe + (nat)Sn reaction at 50 A MeV is Delta tau approximate to 100-300 fm/c for all reaction centralities. The lifetime of the radiating sources produced in seven other different heavy-ion reactions studied by the TAPS experiment is consistent with Delta tau approximate to 100 fm/c, such relatively long thermal photon emission times do not seemingly support the interpretation of nuclear breakup as due to a fast spinodal process for the heavy nuclear systems studied.

KW - HEAVY-ION COLLISIONS

KW - GIANT-DIPOLE RESONANCE

KW - GAS PHASE-TRANSITION

KW - BREMSSTRAHLUNG PHOTONS

KW - COLLECTIVE MOTION

KW - IMPACT PARAMETER

KW - FERMI ENERGY

KW - HOT NUCLEI

KW - MULTIFRAGMENTATION

KW - MASS

U2 - 10.1140/epja/i2005-10277-9

DO - 10.1140/epja/i2005-10277-9

M3 - Article

SN - 1434-6001

VL - 28

SP - 161

EP - 171

JO - European Physical Journal A

JF - European Physical Journal A

IS - 2

ER -

Constraints on the time scale of nuclear breakup from thermal hard-photon emission

Abstract

Keywords

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