Neutron and proton transverse emission ratio measurements and the density dependence of the asymmetry term of the nuclear equation of state

M. A. Famiano; T. Liu; W. G. Lynch; M. Mocko; A. M. Rogers; M. B. Tsang; M. S. Wallace; R. J. Charity; S. Komarov; D. G. Sarantites; L. G. Sobotka; G. Verde

doi:10.1103/PhysRevLett.97.052701

Neutron and proton transverse emission ratio measurements and the density dependence of the asymmetry term of the nuclear equation of state

M. A. Famiano, T. Liu, W. G. Lynch, M. Mocko, A. M. Rogers, M. B. Tsang, M. S. Wallace, R. J. Charity, S. Komarov, D. G. Sarantites, L. G. Sobotka, G. Verde

Department of Chemistry

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222 Scopus citations

Abstract

Recent measurements of preequilibrium neutron and proton transverse emission from Sn112,124+Sn112,124 reactions at 50MeV/A have been completed at the National Superconducting Cyclotron Laboratory. Free nucleon transverse emission ratios are compared to those of A=3 mirror nuclei. Comparisons are made to Boltzmann-Uehling-Uhlenbeck (BUU) transport calculations and conclusions concerning the density dependence of the asymmetry term of the nuclear equation of state at subnuclear densities are made. Comparison to BUU model predictions indicate a density dependence of the asymmetry energy that is closer to a form in which the asymmetry energy increases as the square root of the density for the density region studied. A coalescent-invariant analysis is introduced as a means of reducing suggested difficulties with cluster emission in total nucleon emission.

Original language	English
Article number	052701
Journal	Physical Review Letters
Volume	97
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.97.052701
State	Published - 2006

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Famiano, M. A., Liu, T., Lynch, W. G., Mocko, M., Rogers, A. M., Tsang, M. B., Wallace, M. S., Charity, R. J., Komarov, S., Sarantites, D. G., Sobotka, L. G., & Verde, G. (2006). Neutron and proton transverse emission ratio measurements and the density dependence of the asymmetry term of the nuclear equation of state. Physical Review Letters, 97(5), Article 052701. https://doi.org/10.1103/PhysRevLett.97.052701

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title = "Neutron and proton transverse emission ratio measurements and the density dependence of the asymmetry term of the nuclear equation of state",

abstract = "Recent measurements of preequilibrium neutron and proton transverse emission from Sn112,124+Sn112,124 reactions at 50MeV/A have been completed at the National Superconducting Cyclotron Laboratory. Free nucleon transverse emission ratios are compared to those of A=3 mirror nuclei. Comparisons are made to Boltzmann-Uehling-Uhlenbeck (BUU) transport calculations and conclusions concerning the density dependence of the asymmetry term of the nuclear equation of state at subnuclear densities are made. Comparison to BUU model predictions indicate a density dependence of the asymmetry energy that is closer to a form in which the asymmetry energy increases as the square root of the density for the density region studied. A coalescent-invariant analysis is introduced as a means of reducing suggested difficulties with cluster emission in total nucleon emission.",

author = "Famiano, {M. A.} and T. Liu and Lynch, {W. G.} and M. Mocko and Rogers, {A. M.} and Tsang, {M. B.} and Wallace, {M. S.} and Charity, {R. J.} and S. Komarov and Sarantites, {D. G.} and Sobotka, {L. G.} and G. Verde",

year = "2006",

doi = "10.1103/PhysRevLett.97.052701",

language = "English",

volume = "97",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "5",

}

Famiano, MA, Liu, T, Lynch, WG, Mocko, M, Rogers, AM, Tsang, MB, Wallace, MS, Charity, RJ, Komarov, S, Sarantites, DG, Sobotka, LG & Verde, G 2006, 'Neutron and proton transverse emission ratio measurements and the density dependence of the asymmetry term of the nuclear equation of state', Physical Review Letters, vol. 97, no. 5, 052701. https://doi.org/10.1103/PhysRevLett.97.052701

TY - JOUR

T1 - Neutron and proton transverse emission ratio measurements and the density dependence of the asymmetry term of the nuclear equation of state

AU - Famiano, M. A.

AU - Liu, T.

AU - Lynch, W. G.

AU - Mocko, M.

AU - Rogers, A. M.

AU - Tsang, M. B.

AU - Wallace, M. S.

AU - Charity, R. J.

AU - Komarov, S.

AU - Sarantites, D. G.

AU - Sobotka, L. G.

AU - Verde, G.

PY - 2006

Y1 - 2006

N2 - Recent measurements of preequilibrium neutron and proton transverse emission from Sn112,124+Sn112,124 reactions at 50MeV/A have been completed at the National Superconducting Cyclotron Laboratory. Free nucleon transverse emission ratios are compared to those of A=3 mirror nuclei. Comparisons are made to Boltzmann-Uehling-Uhlenbeck (BUU) transport calculations and conclusions concerning the density dependence of the asymmetry term of the nuclear equation of state at subnuclear densities are made. Comparison to BUU model predictions indicate a density dependence of the asymmetry energy that is closer to a form in which the asymmetry energy increases as the square root of the density for the density region studied. A coalescent-invariant analysis is introduced as a means of reducing suggested difficulties with cluster emission in total nucleon emission.

AB - Recent measurements of preequilibrium neutron and proton transverse emission from Sn112,124+Sn112,124 reactions at 50MeV/A have been completed at the National Superconducting Cyclotron Laboratory. Free nucleon transverse emission ratios are compared to those of A=3 mirror nuclei. Comparisons are made to Boltzmann-Uehling-Uhlenbeck (BUU) transport calculations and conclusions concerning the density dependence of the asymmetry term of the nuclear equation of state at subnuclear densities are made. Comparison to BUU model predictions indicate a density dependence of the asymmetry energy that is closer to a form in which the asymmetry energy increases as the square root of the density for the density region studied. A coalescent-invariant analysis is introduced as a means of reducing suggested difficulties with cluster emission in total nucleon emission.

UR - http://www.scopus.com/inward/record.url?scp=33746896186&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.97.052701

DO - 10.1103/PhysRevLett.97.052701

M3 - Article

AN - SCOPUS:33746896186

SN - 0031-9007

VL - 97

JO - Physical Review Letters

JF - Physical Review Letters

IS - 5

M1 - 052701

ER -

Neutron and proton transverse emission ratio measurements and the density dependence of the asymmetry term of the nuclear equation of state

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