Nuclear Data Sheets for A=149

Singh, Balraj

doi:10.1016/j.nds.2004.05.001

Cited by 56 publications

(10 citation statements)

References 342 publications

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“…The deduced mass excess of the high-spin state in 149 Ho is -61648(40) keV which agrees remarkably well with the directly measured value of Litvinov et al [3] of -61646(31) keV. The mass excess deduced for the low-spin state of 149 Ho was found to be -61582(58) keV which is in-line with expectations based on the previously known 49 keV excitation energy of the πs 1/2 -based isomer in 149 Ho [21].…”

Section: Discussionsupporting

confidence: 90%

Characterizing the atomic mass surface beyond the proton drip line viaα-decay measurements of theπs1/2ground state of
Thornthwaite¹,
O’Donnell²,
Page³
et al. 2012
Phys. Rev. C
9
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1
0
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Characterizing the atomic mass surface beyond the proton drip line via α-decay measurements of the πs 1/2 ground state of 165 Re and the πh 11/2 isomer in 161 Ta The α-decay chains originating from the πs 1/2 and πh 11/2 states in 173 Au have been investigated following fusion-evaporation reactions. Four generations of α radioactivities have been correlated with 173 Au m leading to a measurement of the α decay of 161 Ta m . It has been found that the known α decay of 161 Ta, which was previously associated with the decay of the ground state, is in fact the decay of an isomeric state. This work also reports on the first observation of prompt γ rays feeding the ground state of 173 Au. This prompt γ radiation was used to aid the study of the α-decay chain originating from the πs 1/2 state in 173 Au. Three generations of α decays have been correlated with this state leading to the observation of a previously unreported activity which is assigned as the decay of 165 Re g . This work also reports the excitation energy of an α-decaying isomer in 161 Ta and the Qα-value of the decay of 161 Ta g .

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Section: Discussionsupporting

confidence: 90%

Characterizing the atomic mass surface beyond the proton drip line viaα-decay measurements of theπs1/2ground state of
Thornthwaite¹,
O’Donnell²,
Page³
et al. 2012
Phys. Rev. C
9
0
1
0
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“…The γ rays, used in the CS calculation, were chosen in such a way that they have significant abundance and appear prominently in the spectrum. A representative γ spectrum obtained from the irradiated target along with [28,29]. The log e area for each of these photopeaks was plotted as a function of time elapsed from the EOB and fitted with a linear function.…”

Section: Data Analysis and Resultsmentioning

confidence: 99%

“…The relevant details of the above four γ lines are furnished in table I. The abundance values of these γ lines were taken from the ENSDF data base [28,29] and corrected for their respective conversion coefficients while using for the activity calculation. The said conversion coefficients have been calculated by using the BrIccv2.3S code avaiable in [30], using the multipolarities taken from the ENSDF databases [28,29].…”

Section: Data Analysis and Resultsmentioning

confidence: 99%

Role ofp-induced population of medium-mass(A∼150)neutron-rich nuclei

et al. 2015

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Excitation functions were measured by stacked-foil activation technique for the 150 Nd(p, xpyn) reaction using 97.65% enriched 150 Nd target. Measurement up to ∼50% above barrier and down to 18% below the barrier was performed using proton beam energy (Ep) of 7 -15 MeV from VECC Cyclotron. The yield of suitable γ rays emitted following the decay of relevant evaporation residues was determined using a 50% High Purity Germanium (HPGe) detector.(p,n) cross section was found to follow the expected trend with a maximum value of 63.7(4.9)mb at Ep ∼ 8.6 MeV. (p,2n) cross section gradually increased with Ep and had maximum contribution to the total reaction cross section after Ep ∼ 9.0 MeV. (p, p ′ n) reaction channel also showed a reasonable yield with a threshold of Ep ∼ 12.0 MeV. The experimental data were corroborated with statistical model calculations using different codes, viz., CASCADE, ALICE/91 and EMPIRE3.1. All the calculations using a suitable set of global parameters could reproduce the excitation function fairly well in the present energy range.

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“…Figure 12 shows the spectroscopic factors obtained with the three transfer operators, normalized according to the McFarlane sum rules, along with the experimental values from two different reactions [16][17][18][19]. The calculated values with the three approximations used for the transfer operator are very similar.…”

Section: Spectroscopic Factorsmentioning

confidence: 90%

“…Calculated spectroscopic factors have been normalized to reproduce the spectroscopic sum rules. Figure 13 shows the results of the calculations along with the experimental data [16][17][18][19]25]. In contrast to the stripping reactions, there is more experimental data available for the pickup ones, which allows a more detailed comparison with the calculated values.…”

Section: Spectroscopic Factorsmentioning

confidence: 99%

Odd-even147−153Pm isotopes within the neutron-proton interacting boson-fermion model

2011

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Low-lying energy states of the 147−153 Pm isotopic chain are studied within the framework of the neutron-proton interacting boson-fermion model (IBFM-2). The spectra of these isotopes show a transition from a particle coupled to a vibrational core to a particle coupled to a deformed one. The calculation reproduces this behavior. In addition, reduced transition probabilities B(E2) and B(M1) and quadrupole and magnetic moments, as well as spectroscopic factors corresponding to stripping and pickup transfer reactions, are calculated. Obtained results compare well with the available experimental data, which reinforces the reliability of the wave functions obtained within the IBFM-2 model.

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Nuclear Data Sheets for A=149

Cited by 56 publications

References 342 publications

Characterizing the atomic mass surface beyond the proton drip line viaα-decay measurements of theπs1/2ground state of
Thornthwaite¹,
O’Donnell²,
Page³
et al. 2012
Phys. Rev. C
9
0
1
0
View full text Add to dashboard Cite

Characterizing the atomic mass surface beyond the proton drip line viaα-decay measurements of theπs1/2ground state of
Thornthwaite¹,
O’Donnell²,
Page³
et al. 2012
Phys. Rev. C
9
0
1
0
View full text Add to dashboard Cite

Role ofp-induced population of medium-mass(A∼150)neutron-rich nuclei

Odd-even147−153Pm isotopes within the neutron-proton interacting boson-fermion model

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Nuclear Data Sheets for A=149

Cited by 56 publications

References 342 publications

Characterizing the atomic mass surface beyond the proton drip line viaα-decay measurements of theπs1/2ground state ofThornthwaite1, O’Donnell2, Page3 et al. 2012Phys. Rev. C9010View full textAdd to dashboardCite

Characterizing the atomic mass surface beyond the proton drip line viaα-decay measurements of theπs1/2ground state ofThornthwaite1, O’Donnell2, Page3 et al. 2012Phys. Rev. C9010View full textAdd to dashboardCite

Role ofp-induced population of medium-mass(A∼150)neutron-rich nuclei

Odd-even147−153Pm isotopes within the neutron-proton interacting boson-fermion model

Contact Info

Product

Resources

About

Characterizing the atomic mass surface beyond the proton drip line viaα-decay measurements of theπs1/2ground state of
Thornthwaite¹,
O’Donnell²,
Page³
et al. 2012
Phys. Rev. C
9
0
1
0
View full text Add to dashboard Cite

Characterizing the atomic mass surface beyond the proton drip line viaα-decay measurements of theπs1/2ground state of
Thornthwaite¹,
O’Donnell²,
Page³
et al. 2012
Phys. Rev. C
9
0
1
0
View full text Add to dashboard Cite