Odd-even Z isospin anomaly in heavy-ion reactions

L. B. Yang; E. Norbeck; W. A. Friedman; O. Bjarki; F. D. Ingram; R. A. Lacey; D. J. Magestro; M. L. Miller; A. Nadasen; R. Pak; N. T.B. Stone; A. M. Vander Molen; G. D. Westfall; S. J. Yennello

doi:10.1103/PhysRevC.60.041602

Odd-even Z isospin anomaly in heavy-ion reactions

L. B. Yang
, E. Norbeck
, W. A. Friedman
, O. Bjarki
, F. D. Ingram
, R. A. Lacey
, D. J. Magestro
, M. L. Miller
, A. Nadasen
, R. Pak
, N. T.B. Stone
, A. M. Vander Molen
, G. D. Westfall
, S. J. Yennello

Chemistry

University of Iowa
University of Wisconsin-Madison
Michigan State University
Rock Valley College
University of Michigan, Dearborn
University of Rochester
Texas A&M University

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

32 Scopus citations

Abstract

Intermediate mass fragment (IMF) production is different for the reaction pair ⁵⁸Fe+⁵⁸Fe and ⁵⁸Ni+ ⁵⁸Ni for which the only difference is the ratio N/Z, 1.23 for ⁵⁸Fe and 1.07 for ⁵⁸Ni. For beam-velocity fragments at 5.4° with Z from 3 to 15 the more proton-rich Ni reaction produces more even-Z IMFs than the Fe reaction. The ratio (number of IMFs from ⁵⁸Ni+⁵⁸Ni)/(number of IMFs from ⁵⁸Fe+⁵⁸Fe) as a function of Z is about 10% larger for even-Z values than for odd-Z values. The magnitude of this odd-even effect is about the same for beam energies with E/A = 45, 75, and 105 MeV.

Original language	English
Article number	041602
Pages (from-to)	416021-416024
Number of pages	4
Journal	Physical Review C - Nuclear Physics
Volume	60
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.60.041602
State	Published - Oct 1999

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Yang, L. B., Norbeck, E., Friedman, W. A., Bjarki, O., Ingram, F. D., Lacey, R. A., Magestro, D. J., Miller, M. L., Nadasen, A., Pak, R., Stone, N. T. B., Vander Molen, A. M., Westfall, G. D., & Yennello, S. J. (1999). Odd-even Z isospin anomaly in heavy-ion reactions. Physical Review C - Nuclear Physics, 60(4), 416021-416024. Article 041602. https://doi.org/10.1103/PhysRevC.60.041602

@article{026f3f976a2544b5b30744491cab9c26,

title = "Odd-even Z isospin anomaly in heavy-ion reactions",

abstract = "Intermediate mass fragment (IMF) production is different for the reaction pair 58Fe+58Fe and 58Ni+ 58Ni for which the only difference is the ratio N/Z, 1.23 for 58Fe and 1.07 for 58Ni. For beam-velocity fragments at 5.4° with Z from 3 to 15 the more proton-rich Ni reaction produces more even-Z IMFs than the Fe reaction. The ratio (number of IMFs from 58Ni+58Ni)/(number of IMFs from 58Fe+58Fe) as a function of Z is about 10\% larger for even-Z values than for odd-Z values. The magnitude of this odd-even effect is about the same for beam energies with E/A = 45, 75, and 105 MeV.",

author = "Yang, \{L. B.\} and E. Norbeck and Friedman, \{W. A.\} and O. Bjarki and Ingram, \{F. D.\} and Lacey, \{R. A.\} and Magestro, \{D. J.\} and Miller, \{M. L.\} and A. Nadasen and R. Pak and Stone, \{N. T.B.\} and \{Vander Molen\}, \{A. M.\} and Westfall, \{G. D.\} and Yennello, \{S. J.\}",

year = "1999",

month = oct,

doi = "10.1103/PhysRevC.60.041602",

language = "English",

volume = "60",

pages = "416021--416024",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "4",

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TY - JOUR

T1 - Odd-even Z isospin anomaly in heavy-ion reactions

AU - Yang, L. B.

AU - Norbeck, E.

AU - Friedman, W. A.

AU - Bjarki, O.

AU - Ingram, F. D.

AU - Lacey, R. A.

AU - Magestro, D. J.

AU - Miller, M. L.

AU - Nadasen, A.

AU - Pak, R.

AU - Stone, N. T.B.

AU - Vander Molen, A. M.

AU - Westfall, G. D.

AU - Yennello, S. J.

PY - 1999/10

Y1 - 1999/10

N2 - Intermediate mass fragment (IMF) production is different for the reaction pair 58Fe+58Fe and 58Ni+ 58Ni for which the only difference is the ratio N/Z, 1.23 for 58Fe and 1.07 for 58Ni. For beam-velocity fragments at 5.4° with Z from 3 to 15 the more proton-rich Ni reaction produces more even-Z IMFs than the Fe reaction. The ratio (number of IMFs from 58Ni+58Ni)/(number of IMFs from 58Fe+58Fe) as a function of Z is about 10% larger for even-Z values than for odd-Z values. The magnitude of this odd-even effect is about the same for beam energies with E/A = 45, 75, and 105 MeV.

AB - Intermediate mass fragment (IMF) production is different for the reaction pair 58Fe+58Fe and 58Ni+ 58Ni for which the only difference is the ratio N/Z, 1.23 for 58Fe and 1.07 for 58Ni. For beam-velocity fragments at 5.4° with Z from 3 to 15 the more proton-rich Ni reaction produces more even-Z IMFs than the Fe reaction. The ratio (number of IMFs from 58Ni+58Ni)/(number of IMFs from 58Fe+58Fe) as a function of Z is about 10% larger for even-Z values than for odd-Z values. The magnitude of this odd-even effect is about the same for beam energies with E/A = 45, 75, and 105 MeV.

UR - https://www.scopus.com/pages/publications/17344377245

U2 - 10.1103/PhysRevC.60.041602

DO - 10.1103/PhysRevC.60.041602

M3 - Article

AN - SCOPUS:17344377245

SN - 0556-2813

VL - 60

SP - 416021

EP - 416024

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 4

M1 - 041602

ER -

Odd-even Z isospin anomaly in heavy-ion reactions

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