Enhancement of α-particle formation near 100Sn

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

The superfluid tunneling model is applied to the calculation of ground-state–to–ground-state α decay in the even-even neutron-deficient Te-Ba nuclei. We show that there is a larger α-particle formation probability in nuclei of this region above 100Sn when compared to analogous nuclei above 208Pb. This is consistent with the expected systematic variation of the pair gap Δ as a function of mass number. The recent experimental data on the α decay of the N = Z nuclei 104Te and 108Xe are shown to leave open the possibility of enhanced α-particle formation involving nucleon correlations beyond the standard treatment of like-nucleon pairing, which is the mechanism suggested as underlying “superallowed” α decay.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • Lawrence Berkeley National Laboratory
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Subatomär fysik

Nyckelord

Originalspråkengelska
Artikelnummer034313
Antal sidor6
TidskriftPhysical Review C
Volym101
Utgåva nummer3
StatusPublished - 2020 mar 27
PublikationskategoriForskning
Peer review utfördJa

Nedladdningar

Ingen tillgänglig data

Relaterad forskningsoutput

Clark, R. M., Crawford, H. L., Macchiavelli, A. O., D. Rudolph, A. Såmark-Roth, Campbell, C. M., Cromaz, M., Fallon, P., Morse, C. & Santamaria, C., 2019 feb 28, I : Physical Review C. 99, 2, 6 s., 024325.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Clark, R. M. & Dirk Rudolph, 2018 feb 26, I : Physical Review C. 97, 2, 6 s., 024333.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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Related projects

Dirk Rudolph, Sven Åberg, Gillis Carlsson, Christoph Emanuel Düllmann, Pavel Golubev, Luis Sarmiento Pico, Ulrika Forsberg, Jussi Toivanen, Daniel Ward, Daniel Cox, Christian Lorenz, Anton Såmark-Roth, Martin Albertsson, Jimmy Ljungberg, Yuliia Hrabar, Yulia Lindholm, Katarina Lindqvist & Mari Lundberg

Crafoordska stiftelsen, Knut and Alice Wallenberg Foundation, Nobelstiftelsen

2016/01/012023/12/31

Projekt: ForskningInternationellt samarbete

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Relaterade aktiviteter

Rudolph, D. (Värd)
2019 jun2019 jul

Aktivitet: Värd för gäst

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