Nuclear data sheets for A = 141

A study of the fl-decay of neutron-rich A = 145 fission products was undertaken by the use of the two recoil separators LOHENGRIN and JOSEF and the ISOL-type separator OSTIS. The/?-decaying isotopes 145Ba, 145La and ~SCe were extensively studied. Level schemes for 145La, 14SCe and 14Spr were deduced from 7 and conversion electron spectra, 7 Y, X7 delayed and fi 7 coincidences. The Q~-values have been measured for the *4SBa, 145La and 145Ce decays.

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“…A similar pair of negative parity states is also observed [32][33][34] in fi decay towards 141(~, 1431n…”

Section: Discussionsupporting

confidence: 73%

Nuclear spectroscopy of neutron-richA=145 nuclei

Schüßler¹,

Blachot²,

Monnand³

et al. 1978

Z Physik A

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“…Two negative parity states of spin 5/2 and 7/2-are also observed in other odd-even nuclei with 86 neutrons (~41Cs [12], 145pr [11], 147Pm [17]); the smooth decrease of their energy with increasing proton number may be attributed to the lowering and splitting of the proton orbit h 11/2.…”

Section: Level Scheme Of 143lamentioning

confidence: 68%

“…The two nuclei studied here are located in the middle of an transitional region between vibrating and deformed nuclei: 14~Ba is the lighest even-odd nucleus with 87 neutrons observed up to now and it completes the systematic of that family we initiated by studying the nuclear structures of 147Nd [10] and 1~5Ce [111. 143La may be inserted either in a systematic of odd Lanthanum isotopes for which some information about nuclear structure exists (141La [12], 14SLa [111, 147La [13,141) or in a more general systematic of odd-even nuclei around A=143 for which also some information exists (143pr [15], 145pr [11, 141-145pm [161, 147pm [17], 149pm [181-139Cs [15], 141Cs [19], 143Cs [20]). The behaviour of some well identified levels along these systematics may possibly show how deformation appears when moving off from the stability line.…”

Section: Introductionmentioning

confidence: 99%

Nuclear spectroscopy of neutron-richA=143 nuclei

Schüßler¹,

Blachot²,

Monnand³

et al. 1979

Z Physik A

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A study of the beta decay of 143Cs and ~'~3Ba fission products was undertaken by the use of two on-line mass-separators OSTIS and OSIRIS. Level schemes for 143Ba and 143La are deduced from gamma and conversion electron spectra, 7-7 and/%7 coincidences. Q~ values and ground state beta feedings were also measured. The nuclei l'~3La and 143Ba are tentatively inserted in a systematic of odd-even nuclei around A = 143 and even-odd nuclei with 87 neutrons respectively.

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“…Table = 0.217 3.5). (Salem et al 1974) QEC value from Auble (1971b ' Marelius(1967), 0. 750+0:0,10 16 Adarnowcz ('9,68, 0.9 +0' 0Z 13 ' Vatai(1968a) Ford (1970).…”

mentioning

confidence: 99%