LIFETIMES OF THE SUPERDEFORMED BAND IN HG-192

P Willsau; A Korichi; F Hannachi; H Hubel; W Korten; M Neffgen; F Azaiez; C Bourgeois; J Duprat; N Perrin; N Poffe; H Sergolle; G Bastin; I Deloncle; B Gall; M Kaci; M G Porquet; C Schuck; J Simpson; R Duffait; Y Lecoz; M Meyer; N Redon; G Defrance; A G Smith; C W Beausang; M J Joyce; E S Paul; J F Sharpeyschafer; R M Clark; R Wadsworth; I Ahmad; M P Carpenter; R G Henry; R V F Janssens; T L Khoo; T Lauritsen; J R Hughes; H J Maier

LIFETIMES OF THE SUPERDEFORMED BAND IN HG-192

P Willsau, A Korichi, F Hannachi, H Hubel, W Korten, M Neffgen, F Azaiez, C Bourgeois, J Duprat, N Perrin, N Poffe, H Sergolle, G Bastin, I Deloncle, B Gall, M Kaci, M G Porquet, C Schuck, J Simpson, R DuffaitY Lecoz, M Meyer, N Redon, G Defrance, A G Smith, C W Beausang, M J Joyce, E S Paul, J F Sharpeyschafer, R M Clark, R Wadsworth, I Ahmad, M P Carpenter, R G Henry, R V F Janssens, T L Khoo, T Lauritsen, J R Hughes, H J Maier

Physics

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

Abstract

Lifetimes of states in the superdeformed band in 192Hg have been measured using the Doppler-shift attenuation and the recoil-distance methods for the high-spin and the low-spin regions, respectively. Line shapes and decay curves were obtained from high-fold gamma-ray coincidence spectra measured with the EUROGAM array. The transition quadrupole moments, derived from the lifetimes, are constant with an average value of Q(t) = 18.6 b down to the bottom of the band where it decays to the normal states. This suggests that the superdeformed potential-energy minimum is still present at that point and that the decay proceeds by tunneling.

Original language	English
Pages (from-to)	560-574
Number of pages	15
Journal	Nuclear Physics A
Volume	574
Issue number	3
Publication status	Published - 11 Jul 1994

Keywords

(160)GD(S-36, 4N)
E = 159 MEV
MEASURED GAMMA-GAMMA-COIN
DOPPLER SHIFTS
(192)HG DEDUCED T(1/2) OF SUPERDEFORMED STATES
TRANSITION QUADRUPOLE MOMENTS
EUROGAM GE DETECTOR SPECTROMETER ARRAY
DECAY
STATES
NUCLEI
TRANSITIONS
MOMENTS
ND-135
MODEL
SPIN

Cite this

@article{7a0977fb398e459fbff1abe38ff15168,

title = "LIFETIMES OF THE SUPERDEFORMED BAND IN HG-192",

abstract = "Lifetimes of states in the superdeformed band in 192Hg have been measured using the Doppler-shift attenuation and the recoil-distance methods for the high-spin and the low-spin regions, respectively. Line shapes and decay curves were obtained from high-fold gamma-ray coincidence spectra measured with the EUROGAM array. The transition quadrupole moments, derived from the lifetimes, are constant with an average value of Q(t) = 18.6 b down to the bottom of the band where it decays to the normal states. This suggests that the superdeformed potential-energy minimum is still present at that point and that the decay proceeds by tunneling.",

keywords = "(160)GD(S-36, 4N), E = 159 MEV, MEASURED GAMMA-GAMMA-COIN, DOPPLER SHIFTS, (192)HG DEDUCED T(1/2) OF SUPERDEFORMED STATES, TRANSITION QUADRUPOLE MOMENTS, EUROGAM GE DETECTOR SPECTROMETER ARRAY, DECAY, STATES, NUCLEI, TRANSITIONS, MOMENTS, ND-135, MODEL, SPIN",

author = "P Willsau and A Korichi and F Hannachi and H Hubel and W Korten and M Neffgen and F Azaiez and C Bourgeois and J Duprat and N Perrin and N Poffe and H Sergolle and G Bastin and I Deloncle and B Gall and M Kaci and Porquet, {M G} and C Schuck and J Simpson and R Duffait and Y Lecoz and M Meyer and N Redon and G Defrance and Smith, {A G} and Beausang, {C W} and Joyce, {M J} and Paul, {E S} and Sharpeyschafer, {J F} and Clark, {R M} and R Wadsworth and I Ahmad and Carpenter, {M P} and Henry, {R G} and Janssens, {R V F} and Khoo, {T L} and T Lauritsen and Hughes, {J R} and Maier, {H J}",

year = "1994",

month = jul,

day = "11",

language = "English",

volume = "574",

pages = "560--574",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier",

number = "3",

}

Willsau, P, Korichi, A, Hannachi, F, Hubel, H, Korten, W, Neffgen, M, Azaiez, F, Bourgeois, C, Duprat, J, Perrin, N, Poffe, N, Sergolle, H, Bastin, G, Deloncle, I, Gall, B, Kaci, M, Porquet, MG, Schuck, C, Simpson, J, Duffait, R, Lecoz, Y, Meyer, M, Redon, N, Defrance, G, Smith, AG, Beausang, CW, Joyce, MJ, Paul, ES, Sharpeyschafer, JF, Clark, RM, Wadsworth, R, Ahmad, I, Carpenter, MP, Henry, RG, Janssens, RVF, Khoo, TL, Lauritsen, T, Hughes, JR & Maier, HJ 1994, 'LIFETIMES OF THE SUPERDEFORMED BAND IN HG-192', Nuclear Physics A, vol. 574, no. 3, pp. 560-574.

TY - JOUR

T1 - LIFETIMES OF THE SUPERDEFORMED BAND IN HG-192

AU - Willsau, P

AU - Korichi, A

AU - Hannachi, F

AU - Hubel, H

AU - Korten, W

AU - Neffgen, M

AU - Azaiez, F

AU - Bourgeois, C

AU - Duprat, J

AU - Perrin, N

AU - Poffe, N

AU - Sergolle, H

AU - Bastin, G

AU - Deloncle, I

AU - Gall, B

AU - Kaci, M

AU - Porquet, M G

AU - Schuck, C

AU - Simpson, J

AU - Duffait, R

AU - Lecoz, Y

AU - Meyer, M

AU - Redon, N

AU - Defrance, G

AU - Smith, A G

AU - Beausang, C W

AU - Joyce, M J

AU - Paul, E S

AU - Sharpeyschafer, J F

AU - Clark, R M

AU - Wadsworth, R

AU - Ahmad, I

AU - Carpenter, M P

AU - Henry, R G

AU - Janssens, R V F

AU - Khoo, T L

AU - Lauritsen, T

AU - Hughes, J R

AU - Maier, H J

PY - 1994/7/11

Y1 - 1994/7/11

N2 - Lifetimes of states in the superdeformed band in 192Hg have been measured using the Doppler-shift attenuation and the recoil-distance methods for the high-spin and the low-spin regions, respectively. Line shapes and decay curves were obtained from high-fold gamma-ray coincidence spectra measured with the EUROGAM array. The transition quadrupole moments, derived from the lifetimes, are constant with an average value of Q(t) = 18.6 b down to the bottom of the band where it decays to the normal states. This suggests that the superdeformed potential-energy minimum is still present at that point and that the decay proceeds by tunneling.

AB - Lifetimes of states in the superdeformed band in 192Hg have been measured using the Doppler-shift attenuation and the recoil-distance methods for the high-spin and the low-spin regions, respectively. Line shapes and decay curves were obtained from high-fold gamma-ray coincidence spectra measured with the EUROGAM array. The transition quadrupole moments, derived from the lifetimes, are constant with an average value of Q(t) = 18.6 b down to the bottom of the band where it decays to the normal states. This suggests that the superdeformed potential-energy minimum is still present at that point and that the decay proceeds by tunneling.

KW - (160)GD(S-36, 4N)

KW - E = 159 MEV

KW - MEASURED GAMMA-GAMMA-COIN

KW - DOPPLER SHIFTS

KW - (192)HG DEDUCED T(1/2) OF SUPERDEFORMED STATES

KW - TRANSITION QUADRUPOLE MOMENTS

KW - EUROGAM GE DETECTOR SPECTROMETER ARRAY

KW - DECAY

KW - STATES

KW - NUCLEI

KW - TRANSITIONS

KW - MOMENTS

KW - ND-135

KW - MODEL

KW - SPIN

M3 - Article

SN - 0375-9474

VL - 574

SP - 560

EP - 574

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 3

ER -