Maximum azimuthal anisotropy of neutrons from Nb-Nb collisions at 400A MeV and the nuclear equation of state

M. Elaasar; R. Madey; W. M. Zhang; J. Schambach; D. Keane; B. D. Anderson; A. R. Baldwin; J. W. Watson; G. D. Westfall; G. Krebs; H. Wieman; C. Gale; K. Haglin

doi:10.1103/PhysRevC.49.R10

Maximum azimuthal anisotropy of neutrons from Nb-Nb collisions at 400A MeV and the nuclear equation of state

M. Elaasar, R. Madey, W. M. Zhang, J. Schambach, D. Keane, B. D. Anderson, A. R. Baldwin, J. W. Watson, G. D. Westfall, G. Krebs, H. Wieman, C. Gale, K. Haglin

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Abstract

We measured the first azimuthal distributions of triple-differential cross sections of neutrons emitted in heavy-ion collisions, and compared their maximum azimuthal anisotropy ratios with Boltzmann-Uehling-Uhlenbeck (BUU) calculations with a momentum-dependent interaction. By restricting the analysis to free neutrons, the BUU calculations of the triple-differential cross sections for positive rapidity neutrons emitted at polar angles from 7°to 27°agree generally with the data; however, the polar-angle dependence of the maximum azimuthal anisotropy ratio for these free neutrons is insensitive to the size of the nuclear incompressibility modulus K characterizing the nuclear matter equation of state.

Original language	English
Pages (from-to)	R10-R13
Journal	Physical Review C - Nuclear Physics
Volume	49
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.49.R10
State	Published - 1994
Externally published	Yes

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Elaasar, M., Madey, R., Zhang, W. M., Schambach, J., Keane, D., Anderson, B. D., Baldwin, A. R., Watson, J. W., Westfall, G. D., Krebs, G., Wieman, H., Gale, C., & Haglin, K. (1994). Maximum azimuthal anisotropy of neutrons from Nb-Nb collisions at 400A MeV and the nuclear equation of state. Physical Review C - Nuclear Physics, 49(1), R10-R13. https://doi.org/10.1103/PhysRevC.49.R10

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title = "Maximum azimuthal anisotropy of neutrons from Nb-Nb collisions at 400A MeV and the nuclear equation of state",

abstract = "We measured the first azimuthal distributions of triple-differential cross sections of neutrons emitted in heavy-ion collisions, and compared their maximum azimuthal anisotropy ratios with Boltzmann-Uehling-Uhlenbeck (BUU) calculations with a momentum-dependent interaction. By restricting the analysis to free neutrons, the BUU calculations of the triple-differential cross sections for positive rapidity neutrons emitted at polar angles from 7°to 27°agree generally with the data; however, the polar-angle dependence of the maximum azimuthal anisotropy ratio for these free neutrons is insensitive to the size of the nuclear incompressibility modulus K characterizing the nuclear matter equation of state.",

author = "M. Elaasar and R. Madey and Zhang, {W. M.} and J. Schambach and D. Keane and Anderson, {B. D.} and Baldwin, {A. R.} and Watson, {J. W.} and Westfall, {G. D.} and G. Krebs and H. Wieman and C. Gale and K. Haglin",

year = "1994",

doi = "10.1103/PhysRevC.49.R10",

language = "English",

volume = "49",

pages = "R10--R13",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "1",

}

Elaasar, M, Madey, R, Zhang, WM, Schambach, J, Keane, D, Anderson, BD, Baldwin, AR, Watson, JW, Westfall, GD, Krebs, G, Wieman, H, Gale, C & Haglin, K 1994, 'Maximum azimuthal anisotropy of neutrons from Nb-Nb collisions at 400A MeV and the nuclear equation of state', Physical Review C - Nuclear Physics, vol. 49, no. 1, pp. R10-R13. https://doi.org/10.1103/PhysRevC.49.R10

TY - JOUR

T1 - Maximum azimuthal anisotropy of neutrons from Nb-Nb collisions at 400A MeV and the nuclear equation of state

AU - Elaasar, M.

AU - Madey, R.

AU - Zhang, W. M.

AU - Schambach, J.

AU - Keane, D.

AU - Anderson, B. D.

AU - Baldwin, A. R.

AU - Watson, J. W.

AU - Westfall, G. D.

AU - Krebs, G.

AU - Wieman, H.

AU - Gale, C.

AU - Haglin, K.

PY - 1994

Y1 - 1994

N2 - We measured the first azimuthal distributions of triple-differential cross sections of neutrons emitted in heavy-ion collisions, and compared their maximum azimuthal anisotropy ratios with Boltzmann-Uehling-Uhlenbeck (BUU) calculations with a momentum-dependent interaction. By restricting the analysis to free neutrons, the BUU calculations of the triple-differential cross sections for positive rapidity neutrons emitted at polar angles from 7°to 27°agree generally with the data; however, the polar-angle dependence of the maximum azimuthal anisotropy ratio for these free neutrons is insensitive to the size of the nuclear incompressibility modulus K characterizing the nuclear matter equation of state.

AB - We measured the first azimuthal distributions of triple-differential cross sections of neutrons emitted in heavy-ion collisions, and compared their maximum azimuthal anisotropy ratios with Boltzmann-Uehling-Uhlenbeck (BUU) calculations with a momentum-dependent interaction. By restricting the analysis to free neutrons, the BUU calculations of the triple-differential cross sections for positive rapidity neutrons emitted at polar angles from 7°to 27°agree generally with the data; however, the polar-angle dependence of the maximum azimuthal anisotropy ratio for these free neutrons is insensitive to the size of the nuclear incompressibility modulus K characterizing the nuclear matter equation of state.

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U2 - 10.1103/PhysRevC.49.R10

DO - 10.1103/PhysRevC.49.R10

M3 - Article

AN - SCOPUS:0001983196

SN - 0556-2813

VL - 49

SP - R10-R13

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 1

ER -

Maximum azimuthal anisotropy of neutrons from Nb-Nb collisions at 400A MeV and the nuclear equation of state

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