Isospin independence of the H-He double isotope ratio "thermometer"

G. J. Kunde; S. Gaff; C. K. Gelbke; T. Glasmacher; M. J. Huang; R. Lemmon; W. G. Lynch; L. Manduci; L. Martin; M. B. Tsang; W. A. Friedman; J. Dempsey; R. J. Charity; L. G. Sobotka; D. K. Agnihotri; B. Djerroud; W. U. Schršder; W. Skulski; J. Toke

doi:10.1016/S0370-2693(97)01344-0

Isospin independence of the H-He double isotope ratio "thermometer"

G. J. Kunde
, S. Gaff
, C. K. Gelbke
, T. Glasmacher
, M. J. Huang
, R. Lemmon
, W. G. Lynch
, L. Manduci
, L. Martin
, M. B. Tsang
, W. A. Friedman
, J. Dempsey
, R. J. Charity
, L. G. Sobotka
, D. K. Agnihotri
, B. Djerroud
, W. U. Schršder
, W. Skulski
, J. Toke

Department of Chemistry

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

26 Scopus citations

Abstract

Light fragments (d, t, ³He,⁴He) were measured for central collisions of ¹¹²Sn + ¹¹²Sn and ¹²⁴Sn + ¹²⁴Sn at E/A = 40 MeV. While individual isotope ratios depend strongly on the neutron-to-proton ratio of the entrance channel, the double ratio R_{H - He} = [Y(d)Y(⁴He)]/[Y(t)Y(³He)] shows no such sensitivity. Within the assumptions of the Albergo thermometric technique, this independence is consistent with the attainment of full chemical equilibrium for each reaction at the same common temperature. However, the same independence is also predicted by calculations based on emission from an expanding emitting source, where the yield for the final double ratio is not obtained at a single well defined source temperature.

Original language	English
Pages (from-to)	56-61
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	416
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(97)01344-0
State	Published - Jan 1 1998

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Kunde, G. J., Gaff, S., Gelbke, C. K., Glasmacher, T., Huang, M. J., Lemmon, R., Lynch, W. G., Manduci, L., Martin, L., Tsang, M. B., Friedman, W. A., Dempsey, J., Charity, R. J., Sobotka, L. G., Agnihotri, D. K., Djerroud, B., Schršder, W. U., Skulski, W., & Toke, J. (1998). Isospin independence of the H-He double isotope ratio "thermometer". Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 416(1-2), 56-61. https://doi.org/10.1016/S0370-2693(97)01344-0

@article{cfa509da4bb14d418c9e63e1a8c15953,

title = "Isospin independence of the H-He double isotope ratio {"}thermometer{"}",

abstract = "Light fragments (d, t, 3He,4He) were measured for central collisions of 112Sn + 112Sn and 124Sn + 124Sn at E/A = 40 MeV. While individual isotope ratios depend strongly on the neutron-to-proton ratio of the entrance channel, the double ratio RH - He = [Y(d)Y(4He)]/[Y(t)Y(3He)] shows no such sensitivity. Within the assumptions of the Albergo thermometric technique, this independence is consistent with the attainment of full chemical equilibrium for each reaction at the same common temperature. However, the same independence is also predicted by calculations based on emission from an expanding emitting source, where the yield for the final double ratio is not obtained at a single well defined source temperature.",

author = "Kunde, \{G. J.\} and S. Gaff and Gelbke, \{C. K.\} and T. Glasmacher and Huang, \{M. J.\} and R. Lemmon and Lynch, \{W. G.\} and L. Manduci and L. Martin and Tsang, \{M. B.\} and Friedman, \{W. A.\} and J. Dempsey and Charity, \{R. J.\} and Sobotka, \{L. G.\} and Agnihotri, \{D. K.\} and B. Djerroud and Schr{\v s}der, \{W. U.\} and W. Skulski and J. Toke",

year = "1998",

month = jan,

day = "1",

doi = "10.1016/S0370-2693(97)01344-0",

language = "English",

volume = "416",

pages = "56--61",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

number = "1-2",

}

Kunde, GJ, Gaff, S, Gelbke, CK, Glasmacher, T, Huang, MJ, Lemmon, R, Lynch, WG, Manduci, L, Martin, L, Tsang, MB, Friedman, WA, Dempsey, J, Charity, RJ, Sobotka, LG, Agnihotri, DK, Djerroud, B, Schršder, WU, Skulski, W & Toke, J 1998, 'Isospin independence of the H-He double isotope ratio "thermometer"', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 416, no. 1-2, pp. 56-61. https://doi.org/10.1016/S0370-2693(97)01344-0

TY - JOUR

T1 - Isospin independence of the H-He double isotope ratio "thermometer"

AU - Kunde, G. J.

AU - Gaff, S.

AU - Gelbke, C. K.

AU - Glasmacher, T.

AU - Huang, M. J.

AU - Lemmon, R.

AU - Lynch, W. G.

AU - Manduci, L.

AU - Martin, L.

AU - Tsang, M. B.

AU - Friedman, W. A.

AU - Dempsey, J.

AU - Charity, R. J.

AU - Sobotka, L. G.

AU - Agnihotri, D. K.

AU - Djerroud, B.

AU - Schršder, W. U.

AU - Skulski, W.

AU - Toke, J.

PY - 1998/1/1

Y1 - 1998/1/1

N2 - Light fragments (d, t, 3He,4He) were measured for central collisions of 112Sn + 112Sn and 124Sn + 124Sn at E/A = 40 MeV. While individual isotope ratios depend strongly on the neutron-to-proton ratio of the entrance channel, the double ratio RH - He = [Y(d)Y(4He)]/[Y(t)Y(3He)] shows no such sensitivity. Within the assumptions of the Albergo thermometric technique, this independence is consistent with the attainment of full chemical equilibrium for each reaction at the same common temperature. However, the same independence is also predicted by calculations based on emission from an expanding emitting source, where the yield for the final double ratio is not obtained at a single well defined source temperature.

AB - Light fragments (d, t, 3He,4He) were measured for central collisions of 112Sn + 112Sn and 124Sn + 124Sn at E/A = 40 MeV. While individual isotope ratios depend strongly on the neutron-to-proton ratio of the entrance channel, the double ratio RH - He = [Y(d)Y(4He)]/[Y(t)Y(3He)] shows no such sensitivity. Within the assumptions of the Albergo thermometric technique, this independence is consistent with the attainment of full chemical equilibrium for each reaction at the same common temperature. However, the same independence is also predicted by calculations based on emission from an expanding emitting source, where the yield for the final double ratio is not obtained at a single well defined source temperature.

UR - https://www.scopus.com/pages/publications/0348047607

U2 - 10.1016/S0370-2693(97)01344-0

DO - 10.1016/S0370-2693(97)01344-0

M3 - Article

AN - SCOPUS:0348047607

SN - 0370-2693

VL - 416

SP - 56

EP - 61

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Isospin independence of the H-He double isotope ratio "thermometer"

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