Browsing by Author "G. Savard"

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Mass measurements of proton-rich nuclides in the vicinity of 92Ru and 93Rh for νp-process models
(2008) J. Fallis; J.A. Clark; K.S. Sharma; G. Savard; F. Buchinger; S. Caldwell; J.E. Crawford; C.M. Deibel; J.L. Fisker; S. Gulick; A.A. Hecht; D. Lascar; J.K.P. Lee; A.F. Levand; G. Li; A. Parikh; N.D. Scielzo; R. Segel; H. Sharma; M. Sternberg; T. Sun; J. Van Schelt; C. Wrede
One of the long-standing questions in our understanding of the origin of the elements is the significant underproduction of light-p nuclei such as 92Mo and 94Mo by models of nucleosynthesis in various astrophysical scenarios. The recently proposed νp-process [1], which occurs due to the interaction of the neutrino wind with the proton-rich ejecta of core collapse supernova explosions, is a process which could resolve the underproduction of 92Mo and 94Mo. The final abundances of these two isotopes as well as any others synthesized by the νp-process depend directly on the values of the proton separation energies, Sp, along the νp-process reaction path; the Sp value of 93Rh is thought to be especially critical to the relative production of 92Mo and 94Mo [2]. Due to the absence of mass measurements in this region Sp(93Rh) and many of the other required Sp values were not well known. Recent mass measurements performed with the Canadian Penning Trap mass spectrometer have reduced uncertainties in the Sp values of many of the proton-rich nuclei between Mo and Pd including S p(93Rh) by factors of as much as 60. These measurements and the resulting implications for both the ∪-process path and the 92Mo/94Mo abundance ratio will be discussed. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlikeLicence.
The large enriched germanium experiment for neutrinoless double beta decay (LEGEND)
(American Institute of Physics Inc., 2017) N. Abgrall; A. Abramov; N. Abrosimov; I. Abt; M. Agostini; M. Agartioglu; A. Ajjaq; S.I. Alvis; F.T. Avignone; X. Bai; M. Balata; I. Barabanov; A.S. Barabash; P.J. Barton; L. Baudis; L. Bezrukov; T. Bode; A. Bolozdynya; D. Borowicz; A. Boston; H. Boston; S.T.P. Boyd; R. Breier; V. Brudanin; R. Brugnera; M. Busch; M. Buuck; A. Caldwell; T.S. Caldwell; T. Camellato; M. Carpenter; C. Cattadori; J. Cederkäll; Y.-D. Chan; S. Chen; A. Chernogorov; C.D. Christofferson; P.-H. Chu; R.J. Cooper; C. Cuesta; E.V. Demidova; Z. Deng; M. Deniz; J.A. Detwiler; N. Di Marco; A. Domula; Q. Du; Yu. Efremenko; V. Egorov; S.R. Elliott; D. Fields; F. Fischer; A. Galindo-Uribarri; A. Gangapshev; A. Garfagnini; T. Gilliss; M. Giordano; G.K. Giovanetti; M. Gold; P. Golubev; C. Gooch; P. Grabmayr; M.P. Green; J. Gruszko; I.S. Guinn; V.E. Guiseppe; V. Gurentsov; Y. Gurov; K. Gusev; J. Hakenmüeller; L. Harkness-Brennan; Z.R. Harvey; C.R. Haufe; L. Hauertmann; D. Heglund; L. Hehn; A. Heinz; R. Hiller; J. Hinton; R. Hodak; W. Hofmann; S. Howard; M.A. Howe; M. Hult; L.V. Inzhechik; J. Janicskó Csáthy; R. Janssens; M. Ješkovský; J. Jochum; H.T. Johansson; D. Judson; M. Junker; J. Kaizer; K. Kang; V. Kazalov; Y. Kermadic; F. Kiessling; A. Kirsch; A. Kish; A. Klimenko; K.T. Knöpfle; O. Kochetov; S.I. Konovalov; I. Kontul; V.N. Kornoukhov; T. Kraetzschmar; K. Kröninger; A. Kumar; V.V. Kuzminov; K. Lang; M. Laubenstein; A. Lazzaro; Y.L. Li; Y.-Y. Li; H.B. Li; S.T. Lin; M. Lindner; I. Lippi; S.K. Liu; X. Liu; J. Liu; D. Loomba; A. Lubashevskiy; B. Lubsandorzhiev; G. Lutter; H. Ma; B. Majorovits; F. Mamedov; R.D. Martin; R. Massarczyk; J.A.J. Matthews; N. McFadden; D.-M. Mei; H. Mei; S.J. Meijer; D. Mengoni; S. Mertens; W. Miller; M. Miloradovic; R. Mingazheva; M. Misiaszek; P. Moseev; J. Myslik; I. Nemchenok; T. Nilsson; P. Nolan; C. O'Shaughnessy; G. Othman; K. Panas; L. Pandola; L. Papp; K. Pelczar; D. Peterson; W. Pettus; A.W.P. Poon; P.P. Povinec; A. Pullia; X.C. Quintana; D.C. Radford; J. Rager; C. Ransom; F. Recchia; A.L. Reine; S. Riboldi; K. Rielage; S. Rozov; N.W. Rouf; E. Rukhadze; N. Rumyantseva; R. Saakyan; E. Sala; F. Salamida; V. Sandukovsky; G. Savard; S. Schönert; A.-K. Schütz; O. Schulz; M. Schuster; B. Schwingenheuer; O. Selivanenko; B. Sevda; B. Shanks; E. Shevchik; M. Shirchenko; F. Simkovic; L. Singh; V. Singh; M. Skorokhvatov; K. Smolek; A. Smolnikov; A. Sonay; M. Spavorova; I. Stekl; D. Stukov; D. Tedeschi; J. Thompson; T. Van Wechel; R.L. Varner; A.A. Vasenko; S. Vasilyev; A. Veresnikova; K. Vetter; K. Von Sturm; K. Vorren; M. Wagner; G.-J. Wang; D. Waters; W.-Z. Wei; T. Wester; B.R. White; C. Wiesinger; J.F. Wilkerson; M. Willers; C. Wiseman; M. Wojcik; H.T. Wong; J. Wyenberg; W. Xu; E. Yakushev; G. Yang; C.-H. Yu; Q. Yue; V. Yumatov; J. Zeman; Z. Zeng; I. Zhitnikov; B. Zhu; D. Zinatulina; A. Zschocke; A.J. Zsigmond; K. Zuber; G. Zuzel
The observation of neutrinoless double-beta decay (0νββ) would show that lepton number is violated, reveal that neu-trinos are Majorana particles, and provide information on neutrino mass. A discovery-capable experiment covering the inverted ordering region, with effective Majorana neutrino masses of 15 - 50 meV, will require a tonne-scale experiment with excellent energy resolution and extremely low backgrounds, at the level of ∼0.1 count /(FWHM·t·yr) in the region of the signal. The current generation 76Ge experiments GERDA and the Majorana Demonstrator, utilizing high purity Germanium detectors with an intrinsic energy resolution of 0.12%, have achieved the lowest backgrounds by over an order of magnitude in the 0νββ signal region of all 0νββ experiments. Building on this success, the LEGEND collaboration has been formed to pursue a tonne-scale 76Ge experiment. The collaboration aims to develop a phased 0νββ experimental program with discovery potential at a half-life approaching or at 1028 years, using existing resources as appropriate to expedite physics results. © 2017 Author(s).