Helppi, H

birthDate

• 1941

deathDate

• 1991

name

• Helppi, H

Authored works

• A note on the 3[sup +] quasi gamma-band level in [sup 152]Gd
• E2/Ml mixing of transitions from beta- and gamma-bands in transitional nuclei [sup 152]Sm, [sup 152]Gd, [sup 190, 192]Os and [sup 192]Pt
• Even-and odd-parity band structures in [sup 125]Xe
• Mixing of the transitions from the 3[sup +] quasi gamma-band level in [sup 152]Gd
• Multipole character of some gamma transitions in [sup 152]Sm
• The E2/Ml Mixing of the Transitions from the K[sup II] = 2[sup+] Bands in [sup 190,192]Os and [sup 192]Pt
• Theoretical correlation coefficients as functions of the mixing ratio [delta] for triple [gamma]-ray cascades with intermediate transition unobserved

Works contributed to

• Directional correlations of some [gamma]-ray cascades in [sup 200]Hg
• In-beam study of [sup 122], [sup 124], [sup 126] Xe
• In-beam study of [sup 127, 129]Xe and collective description of the level structures in odd-A Xe nuclei
• New [sup 204]Au activity and the decay of [sup 202]Au
• Simultaneous recording of true and random coincidences using a two-parameter analyzer system

Works about Helppi, H