Collective flow, multi-fragment emission and azimuthal asymmetries in intermediate energy nucleus-nucleus collisions

G. D. Westfall; C. A. Ogilvie; D. A. Cebra; W. K. Wilson; A. Vander Molen; W. Bauer; J. S. Winfield; D. Krofcheck; J. Karn; S. Howden; T. Li; R. Lacey; K. Tyson; M. Cronqvist; A. Nadasen

doi:10.1016/0375-9474(90)90622-S

Collective flow, multi-fragment emission and azimuthal asymmetries in intermediate energy nucleus-nucleus collisions

G. D. Westfall
, C. A. Ogilvie
, D. A. Cebra
, W. K. Wilson
, A. Vander Molen
, W. Bauer
, J. S. Winfield
, D. Krofcheck
, J. Karn
, S. Howden
, T. Li
, R. Lacey
, K. Tyson
, M. Cronqvist
, A. Nadasen

Chemistry

National Science Foundation
Michigan State University
University of Michigan, Dearborn

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

8 Scopus citations

Abstract

Using the MSU 4π Array with the NSCL K1200 Superconducting Cyclotron we have measured an excitation function for ⁴⁰Ar+⁵¹V from 35 to 100 MeV/nucleon. We have observed a minimum in collective flow around 82 MeV/nucleon which marks the transition from attractive to repulsive scattering. Multi-fragment emission is observed to occur sequentially in reactions at 35 MeV/nucleon. As the beam energy is raised, the emission becomes more simultaneous. Using azimuthal asymmetries, we have extracted rotation-like phenomena. This signal for rotation is strong at 35 MeV/nucleon and nearly disappears as the beam energy is raised to 85 MeV/nucleon.

Original language	English
Pages (from-to)	141-156
Number of pages	16
Journal	Nuclear Physics, Section A
Volume	519
Issue number	1-2
DOIs	https://doi.org/10.1016/0375-9474(90)90622-S
State	Published - Dec 3 1990

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Westfall, G. D., Ogilvie, C. A., Cebra, D. A., Wilson, W. K., Molen, A. V., Bauer, W., Winfield, J. S., Krofcheck, D., Karn, J., Howden, S., Li, T., Lacey, R., Tyson, K., Cronqvist, M., & Nadasen, A. (1990). Collective flow, multi-fragment emission and azimuthal asymmetries in intermediate energy nucleus-nucleus collisions. Nuclear Physics, Section A, 519(1-2), 141-156. https://doi.org/10.1016/0375-9474(90)90622-S

@article{b659f6284a72439aa66b8def974b3645,

title = "Collective flow, multi-fragment emission and azimuthal asymmetries in intermediate energy nucleus-nucleus collisions",

abstract = "Using the MSU 4π Array with the NSCL K1200 Superconducting Cyclotron we have measured an excitation function for 40Ar+51V from 35 to 100 MeV/nucleon. We have observed a minimum in collective flow around 82 MeV/nucleon which marks the transition from attractive to repulsive scattering. Multi-fragment emission is observed to occur sequentially in reactions at 35 MeV/nucleon. As the beam energy is raised, the emission becomes more simultaneous. Using azimuthal asymmetries, we have extracted rotation-like phenomena. This signal for rotation is strong at 35 MeV/nucleon and nearly disappears as the beam energy is raised to 85 MeV/nucleon.",

author = "Westfall, \{G. D.\} and Ogilvie, \{C. A.\} and Cebra, \{D. A.\} and Wilson, \{W. K.\} and Molen, \{A. Vander\} and W. Bauer and Winfield, \{J. S.\} and D. Krofcheck and J. Karn and S. Howden and T. Li and R. Lacey and K. Tyson and M. Cronqvist and A. Nadasen",

year = "1990",

month = dec,

day = "3",

doi = "10.1016/0375-9474(90)90622-S",

language = "English",

volume = "519",

pages = "141--156",

journal = "Nuclear Physics, Section A",

issn = "0375-9474",

number = "1-2",

}

Westfall, GD, Ogilvie, CA, Cebra, DA, Wilson, WK, Molen, AV, Bauer, W, Winfield, JS, Krofcheck, D, Karn, J, Howden, S, Li, T, Lacey, R, Tyson, K, Cronqvist, M & Nadasen, A 1990, 'Collective flow, multi-fragment emission and azimuthal asymmetries in intermediate energy nucleus-nucleus collisions', Nuclear Physics, Section A, vol. 519, no. 1-2, pp. 141-156. https://doi.org/10.1016/0375-9474(90)90622-S

TY - JOUR

T1 - Collective flow, multi-fragment emission and azimuthal asymmetries in intermediate energy nucleus-nucleus collisions

AU - Westfall, G. D.

AU - Ogilvie, C. A.

AU - Cebra, D. A.

AU - Wilson, W. K.

AU - Molen, A. Vander

AU - Bauer, W.

AU - Winfield, J. S.

AU - Krofcheck, D.

AU - Karn, J.

AU - Howden, S.

AU - Li, T.

AU - Lacey, R.

AU - Tyson, K.

AU - Cronqvist, M.

AU - Nadasen, A.

PY - 1990/12/3

Y1 - 1990/12/3

N2 - Using the MSU 4π Array with the NSCL K1200 Superconducting Cyclotron we have measured an excitation function for 40Ar+51V from 35 to 100 MeV/nucleon. We have observed a minimum in collective flow around 82 MeV/nucleon which marks the transition from attractive to repulsive scattering. Multi-fragment emission is observed to occur sequentially in reactions at 35 MeV/nucleon. As the beam energy is raised, the emission becomes more simultaneous. Using azimuthal asymmetries, we have extracted rotation-like phenomena. This signal for rotation is strong at 35 MeV/nucleon and nearly disappears as the beam energy is raised to 85 MeV/nucleon.

AB - Using the MSU 4π Array with the NSCL K1200 Superconducting Cyclotron we have measured an excitation function for 40Ar+51V from 35 to 100 MeV/nucleon. We have observed a minimum in collective flow around 82 MeV/nucleon which marks the transition from attractive to repulsive scattering. Multi-fragment emission is observed to occur sequentially in reactions at 35 MeV/nucleon. As the beam energy is raised, the emission becomes more simultaneous. Using azimuthal asymmetries, we have extracted rotation-like phenomena. This signal for rotation is strong at 35 MeV/nucleon and nearly disappears as the beam energy is raised to 85 MeV/nucleon.

UR - https://www.scopus.com/pages/publications/25744439410

U2 - 10.1016/0375-9474(90)90622-S

DO - 10.1016/0375-9474(90)90622-S

M3 - Article

AN - SCOPUS:25744439410

SN - 0375-9474

VL - 519

SP - 141

EP - 156

JO - Nuclear Physics, Section A

JF - Nuclear Physics, Section A

IS - 1-2

ER -

Collective flow, multi-fragment emission and azimuthal asymmetries in intermediate energy nucleus-nucleus collisions

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