Resonant tunneling through the triple-humped fission barrier of U-236

M Csatlos; A Krasznahorkay; PG Thirolf; D Habs; Y Eisermann; T Faestermann; G Graw; J Gulyas; MN Harakeh; R Hertenberger; M Hunyadi; HJ Maier; Z Mate; O Schaile; HF Wirth

doi:10.1016/j.physletb.2005.04.042

Resonant tunneling through the triple-humped fission barrier of U-236

M Csatlos^*, A Krasznahorkay, PG Thirolf, D Habs, Y Eisermann, T Faestermann, G Graw, J Gulyas, MN Harakeh, R Hertenberger, M Hunyadi, HJ Maier, Z Mate, O Schaile, HF Wirth

^*Corresponding author for this work

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

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Abstract

The fission probability of U-236 as a function of the excitation energy has been measured with high energy resolution using the U-235(d, pf) reaction in order to study hyperdeformed (HD) rotational bands. Rotational band structures with a moment of inertia of theta = 217 +/- 38 h(2)/MeV have been observed, corresponding to hyperdeformed configurations. From the level density of the rotational bands the excitation energy of the ground state in the third minimum was determined to be 2.7 +/- 0.4 MeV.

The excitation energy of the lowest hyperdeformed transmission resonance and the energy dependence of the fission isomer population probability enabled the determination of the height of the inner fission barrier E-A = 5.05 +/- 0.20 MeV and its curvature parameter h omega(A) = 1.2 MeV. Using this new method the long-standing uncertainties in determining the height of the inner potential barrier in uranium isotopes could be resolved. (c) 2005 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	175-185
Number of pages	11
Journal	Physics Letters B
Volume	615
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physletb.2005.04.042
Publication status	Published - 2-Jun-2005

Keywords

ACTINIDE NUCLEI
GROUND-STATE
3RD MINIMUM
PU-240
PROBABILITIES
DEFORMATIONS
ISOTOPES
SHAPE

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@article{688f6c3458614bd3a707d664e59b8fc8,

title = "Resonant tunneling through the triple-humped fission barrier of U-236",

abstract = "The fission probability of U-236 as a function of the excitation energy has been measured with high energy resolution using the U-235(d, pf) reaction in order to study hyperdeformed (HD) rotational bands. Rotational band structures with a moment of inertia of theta = 217 +/- 38 h(2)/MeV have been observed, corresponding to hyperdeformed configurations. From the level density of the rotational bands the excitation energy of the ground state in the third minimum was determined to be 2.7 +/- 0.4 MeV.The excitation energy of the lowest hyperdeformed transmission resonance and the energy dependence of the fission isomer population probability enabled the determination of the height of the inner fission barrier E-A = 5.05 +/- 0.20 MeV and its curvature parameter h omega(A) = 1.2 MeV. Using this new method the long-standing uncertainties in determining the height of the inner potential barrier in uranium isotopes could be resolved. (c) 2005 Elsevier B.V. All rights reserved.",

keywords = "ACTINIDE NUCLEI, GROUND-STATE, 3RD MINIMUM, PU-240, PROBABILITIES, DEFORMATIONS, ISOTOPES, SHAPE",

author = "M Csatlos and A Krasznahorkay and PG Thirolf and D Habs and Y Eisermann and T Faestermann and G Graw and J Gulyas and MN Harakeh and R Hertenberger and M Hunyadi and HJ Maier and Z Mate and O Schaile and HF Wirth",

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doi = "10.1016/j.physletb.2005.04.042",

language = "English",

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TY - JOUR

T1 - Resonant tunneling through the triple-humped fission barrier of U-236

AU - Csatlos, M

AU - Krasznahorkay, A

AU - Thirolf, PG

AU - Habs, D

AU - Eisermann, Y

AU - Faestermann, T

AU - Graw, G

AU - Gulyas, J

AU - Harakeh, MN

AU - Hertenberger, R

AU - Hunyadi, M

AU - Maier, HJ

AU - Mate, Z

AU - Schaile, O

AU - Wirth, HF

PY - 2005/6/2

Y1 - 2005/6/2

N2 - The fission probability of U-236 as a function of the excitation energy has been measured with high energy resolution using the U-235(d, pf) reaction in order to study hyperdeformed (HD) rotational bands. Rotational band structures with a moment of inertia of theta = 217 +/- 38 h(2)/MeV have been observed, corresponding to hyperdeformed configurations. From the level density of the rotational bands the excitation energy of the ground state in the third minimum was determined to be 2.7 +/- 0.4 MeV.The excitation energy of the lowest hyperdeformed transmission resonance and the energy dependence of the fission isomer population probability enabled the determination of the height of the inner fission barrier E-A = 5.05 +/- 0.20 MeV and its curvature parameter h omega(A) = 1.2 MeV. Using this new method the long-standing uncertainties in determining the height of the inner potential barrier in uranium isotopes could be resolved. (c) 2005 Elsevier B.V. All rights reserved.

AB - The fission probability of U-236 as a function of the excitation energy has been measured with high energy resolution using the U-235(d, pf) reaction in order to study hyperdeformed (HD) rotational bands. Rotational band structures with a moment of inertia of theta = 217 +/- 38 h(2)/MeV have been observed, corresponding to hyperdeformed configurations. From the level density of the rotational bands the excitation energy of the ground state in the third minimum was determined to be 2.7 +/- 0.4 MeV.The excitation energy of the lowest hyperdeformed transmission resonance and the energy dependence of the fission isomer population probability enabled the determination of the height of the inner fission barrier E-A = 5.05 +/- 0.20 MeV and its curvature parameter h omega(A) = 1.2 MeV. Using this new method the long-standing uncertainties in determining the height of the inner potential barrier in uranium isotopes could be resolved. (c) 2005 Elsevier B.V. All rights reserved.

KW - ACTINIDE NUCLEI

KW - GROUND-STATE

KW - 3RD MINIMUM

KW - PU-240

KW - PROBABILITIES

KW - DEFORMATIONS

KW - ISOTOPES

KW - SHAPE

U2 - 10.1016/j.physletb.2005.04.042

DO - 10.1016/j.physletb.2005.04.042

M3 - Article

SN - 0370-2693

VL - 615

SP - 175

EP - 185

JO - Physics Letters B

JF - Physics Letters B

IS - 3-4

ER -

Resonant tunneling through the triple-humped fission barrier of U-236

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