Stability and synthesis of superheavy elements: Fighting the battle against fission – example of $^{254}$No

A. Lopez-Martens; G. Henning; T.L. Khoo; D. Seweryniak; M. Alcorta; M. Asai; B.B. Back; P. Bertone; D. Boilley; M.P. Carpenter; C.J. Chiara; P. Chowdhury; B. Gall; P.T. Greenlees; G. Gurdal; K. Hauschild; A. Heinz; C.R. Hoffman; R.V.F. Janssens; A.V. Karpov; B.P. Kay; F.G. Kondev; S. Lakshmi; T. Lauristen; C.J. Lister; E.A. Mccutchan; C. Nair; J. Piot; D. Potterveld; P. Reiter; N. Rowley; A.M. Rogers; S. Zhu

doi:10.1051/epjconf/201613103001

Stability and synthesis of superheavy elements: Fighting the battle against fission – example of $^{254}$No

A. Lopez-Martens ^{1, *} G. Henning ¹ T.L. Khoo D. Seweryniak M. Alcorta M. Asai B.B. Back P. Bertone D. Boilley ^{2, 3} M.P. Carpenter C.J. Chiara P. Chowdhury B. Gall P.T. Greenlees G. Gurdal K. Hauschild A. Heinz C.R. Hoffman R.V.F. Janssens A.V. Karpov B.P. Kay F.G. Kondev S. Lakshmi T. Lauristen C.J. Lister E.A. Mccutchan C. Nair J. Piot ^{4, 3} D. Potterveld P. Reiter N. Rowley ⁵ A.M. Rogers S. Zhu

* Auteur correspondant

1 CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière

2 NU - Normandie Université

3 GANIL - Grand Accélérateur National d'Ions Lourds

4 IPHC - Institut Pluridisciplinaire Hubert Curien

5 IPNO - Institut de Physique Nucléaire d'Orsay

Abstract : Superheavy nuclei exist solely due to quantum shell effects, which create a pocket in the potential-energy surface of the nucleus, thus providing a barrier against spontaneous fission. Determining the height of the fission barrier and its angular-momentum dependence is important to quantify the role that microscopic shell corrections play in enhancing and extending the limits of nuclear stability. In this talk, the first measurement of a fission barrier in the very heavy nucleus 254No will be presented.

Type de document :

Communication dans un congrès

Nobel Symposium NS160 – Chemistry and Physics of Heavy and Superheavy Elements, May 2016, Lund, Sweden. EPJ Web of Conferences, 131, pp.03001, 2016, 〈http://www.nuclear.lu.se/ns160/〉. 〈10.1051/epjconf/201613103001〉

Domaine :

Physique [physics] / Physique Nucléaire Expérimentale [nucl-ex]

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