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Article ; Online: 3He(α,γ)7Be cross section measured using complementary techniques

Carmona-Gallardo M. / Rojas A. / Borge M.J.G. / Davids B. / Fulton B.R. / Hass M. / Nara Singh B.S. / Ruiz C. / Tengblad O.

EPJ Web of Conferences, Vol 66, p

2014 Volume 07003

Abstract: The astrophysical S-factor for the 3He(α,γ)7Be reaction plays an important role in the Solar Standard Model and in the Big Bang Nucleosynthesis scenario. The advances from two recent experiments performed using complementary techniques at center of mass ( ...

Abstract	The astrophysical S-factor for the 3He(α,γ)7Be reaction plays an important role in the Solar Standard Model and in the Big Bang Nucleosynthesis scenario. The advances from two recent experiments performed using complementary techniques at center of mass (C.M.) energies between 1 and 3 MeV are discussed.
Keywords	Physics ; QC1-999 ; Science ; Q
Language	English
Publishing date	2014-03-01T00:00:00Z
Publisher	EDP Sciences
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Evolution of Octupole Deformation in Radium Nuclei from Coulomb Excitation of Radioactive ^{222}Ra and ^{228}Ra Beams.

Butler, P A / Gaffney, L P / Spagnoletti, P / Abrahams, K / Bowry, M / Cederkäll, J / de Angelis, G / De Witte, H / Garrett, P E / Goldkuhle, A / Henrich, C / Illana, A / Johnston, K / Joss, D T / Keatings, J M / Kelly, N A / Komorowska, M / Konki, J / Kröll, T /

Lozano, M / Nara Singh, B S / O'Donnell, D / Ojala, J / Page, R D / Pedersen, L G / Raison, C / Reiter, P / Rodriguez, J A / Rosiak, D / Rothe, S / Scheck, M / Seidlitz, M / Shneidman, T M / Siebeck, B / Sinclair, J / Smith, J F / Stryjczyk, M / Van Duppen, P / Vinals, S / Virtanen, V / Warr, N / Wrzosek-Lipska, K / Zielińska, M

Physical review letters

2020 Volume 124, Issue 4, Page(s) 42503

Abstract: There is sparse direct experimental evidence that atomic nuclei can exhibit stable "pear" shapes arising from strong octupole correlations. In order to investigate the nature of octupole collectivity in radium isotopes, electric octupole (E3) matrix ... ...

Abstract	There is sparse direct experimental evidence that atomic nuclei can exhibit stable "pear" shapes arising from strong octupole correlations. In order to investigate the nature of octupole collectivity in radium isotopes, electric octupole (E3) matrix elements have been determined for transitions in ^{222,228}Ra nuclei using the method of sub-barrier, multistep Coulomb excitation. Beams of the radioactive radium isotopes were provided by the HIE-ISOLDE facility at CERN. The observed pattern of E3 matrix elements for different nuclear transitions is explained by describing ^{222}Ra as pear shaped with stable octupole deformation, while ^{228}Ra behaves like an octupole vibrator.
Language	English
Publishing date	2020-01-30
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.124.042503
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Article ; Online: The observation of vibrating pear-shapes in radon nuclei.

Butler, P A / Gaffney, L P / Spagnoletti, P / Konki, J / Scheck, M / Smith, J F / Abrahams, K / Bowry, M / Cederkäll, J / Chupp, T / de Angelis, G / De Witte, H / Garrett, P E / Goldkuhle, A / Henrich, C / Illana, A / Johnston, K / Joss, D T / Keatings, J M /

Kelly, N A / Komorowska, M / Kröll, T / Lozano, M / Nara Singh, B S / O'Donnell, D / Ojala, J / Page, R D / Pedersen, L G / Raison, C / Reiter, P / Rodriguez, J A / Rosiak, D / Rothe, S / Shneidman, T M / Siebeck, B / Seidlitz, M / Sinclair, J / Stryjczyk, M / Van Duppen, P / Vinals, S / Virtanen, V / Warr, N / Wrzosek-Lipska, K / Zielinska, M

Nature communications

2019 Volume 10, Issue 1, Page(s) 2473

Abstract: There is a large body of evidence that atomic nuclei can undergo octupole distortion and assume the shape of a pear. This phenomenon is important for measurements of electric-dipole moments of atoms, which would indicate CP violation and hence probe ... ...

Abstract	There is a large body of evidence that atomic nuclei can undergo octupole distortion and assume the shape of a pear. This phenomenon is important for measurements of electric-dipole moments of atoms, which would indicate CP violation and hence probe physics beyond the Standard Model of particle physics. Isotopes of both radon and radium have been identified as candidates for such measurements. Here, we observed the low-lying quantum states in
Language	English
Publishing date	2019-06-06
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2553671-0
ISSN	2041-1723 ; 2041-1723
ISSN (online)	2041-1723
ISSN	2041-1723
DOI	10.1038/s41467-019-10494-5
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Article ; Online: Hindered Gamow-Teller decay to the odd-odd N=Z (62)Ga: absence of proton-neutron T=0 condensate in A=62.

Grodner, E / Gadea, A / Sarriguren, P / Lenzi, S M / Grebosz, J / Valiente-Dobón, J J / Algora, A / Górska, M / Regan, P H / Rudolph, D / de Angelis, G / Agramunt, J / Alkhomashi, N / Amon Susam, L / Bazzacco, D / Benlliure, J / Benzoni, G / Boutachkov, P / Bracco, A /

Caceres, L / Cakirli, R B / Crespi, F C L / Domingo-Pardo, C / Doncel, M / Dombrádi, Zs / Doornenbal, P / Farnea, E / Ganioğlu, E / Gelletly, W / Gerl, J / Gottardo, A / Hüyük, T / Kurz, N / Leoni, S / Mengoni, D / Molina, F / Morales, A I / Orlandi, R / Oktem, Y / Page, R D / Perez, D / Pietri, S / Podolyák, Zs / Poves, A / Quintana, B / Rinta-Antila, S / Rubio, B / Nara Singh, B S / Steer, A N / Verma, S / Wadsworth, R / Wieland, O / Wollersheim, H J

Physical review letters

2014 Volume 113, Issue 9, Page(s) 92501

Abstract: Search for a new kind of superfluidity built on collective proton-neutron pairs with aligned spin is performed studying the Gamow-Teller decay of the T=1, J(π)=0+ ground state of (62)Ge into excited states of the odd-odd N=Z nucleus (62)Ga. The ... ...

Abstract	Search for a new kind of superfluidity built on collective proton-neutron pairs with aligned spin is performed studying the Gamow-Teller decay of the T=1, J(π)=0+ ground state of (62)Ge into excited states of the odd-odd N=Z nucleus (62)Ga. The experiment is performed at GSI Helmholtzzentrum für Shwerionenforshung with the (62)Ge ions selected by the fragment separator and implanted in a stack of Si-strip detectors, surrounded by the RISING Ge array. A half-life of T1/2=82.9(14) ms is measured for the (62)Ge ground state. Six excited states of (62)Ga, populated below 2.5 MeV through Gamow-Teller transitions, are identified. Individual Gamow-Teller transition strengths agree well with theoretical predictions of the interacting shell model and the quasiparticle random phase approximation. The absence of any sizable low-lying Gamow-Teller strength in the reported beta-decay experiment supports the hypothesis of a negligible role of coherent T=0 proton-neutron correlations in (62)Ga.
Language	English
Publishing date	2014-08-29
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.113.092501
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Article: 40Ca(alpha, gamma)44Ti reaction in the energy regime of supernova nucleosynthesis.

Nassar, H / Paul, M / Ahmad, I / Ben-Dov, Y / Caggiano, J / Ghelberg, S / Goriely, S / Greene, J P / Hass, M / Heger, A / Heinz, A / Henderson, D J / Janssens, R V F / Jiang, C L / Kashiv, Y / Nara Singh, B S / Ofan, A / Pardo, R C / Pennington, T /

Rehm, K E / Savard, G / Scott, R / Vondrasek, R

Physical review letters

2006 Volume 96, Issue 4, Page(s) 41102

Abstract: The 44Ti(t1/2=59 yr) nuclide, an important signature of supernova nucleosynthesis, has recently been observed as live radioactivity by gamma-ray astronomy from the Cas A remnant. We investigate in the laboratory the major 44Ti production reaction 40Ca( ... ...

Abstract	The 44Ti(t1/2=59 yr) nuclide, an important signature of supernova nucleosynthesis, has recently been observed as live radioactivity by gamma-ray astronomy from the Cas A remnant. We investigate in the laboratory the major 44Ti production reaction 40Ca(alpha, gamma)44Ti (Ec.m. approximately 0.6-1.2 MeV/u by direct off-line counting of 44Ti nuclei. The yield, significantly higher than inferred from previous experiments, is analyzed in terms of a statistical model using microscopic nuclear inputs. The associated stellar rate has important astrophysical consequences, increasing the calculated supernova 44Ti yield by a factor approximately 2 over previous estimates and bringing it closer to Cas A observations.
Language	English
Publishing date	2006-02-03
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.96.041102
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Article ; Online: 16+ spin-gap isomer in 96Cd.

Nara Singh, B S / Liu, Z / Wadsworth, R / Grawe, H / Brock, T S / Boutachkov, P / Braun, N / Blazhev, A / Górska, M / Pietri, S / Rudolph, D / Domingo-Pardo, C / Steer, S J / Ataç, A / Bettermann, L / Cáceres, L / Eppinger, K / Engert, T / Faestermann, T /

Farinon, F / Finke, F / Geibel, K / Gerl, J / Gernhäuser, R / Goel, N / Gottardo, A / Grębosz, J / Hinke, C / Hoischen, R / Ilie, G / Iwasaki, H / Jolie, J / Kaşkaş, A / Kojouharov, I / Krücken, R / Kurz, N / Merchán, E / Nociforo, C / Nyberg, J / Pfützner, M / Prochazka, A / Podolyák, Zs / Regan, P H / Reiter, P / Rinta-Antila, S / Scholl, C / Schaffner, H / Söderström, P-A / Warr, N / Weick, H / Wollersheim, H-J / Woods, P J / Nowacki, F / Sieja, K

Physical review letters

2011 Volume 107, Issue 17, Page(s) 172502

Abstract: A β-decaying high-spin isomer in (96)Cd, with a half-life T(1/2)=0.29(-0.10)(+0.11) s, has been established in a stopped beam rare isotope spectroscopic investigations at GSI (RISING) experiment. The nuclei were produced using the fragmentation of a ... ...

Abstract	A β-decaying high-spin isomer in (96)Cd, with a half-life T(1/2)=0.29(-0.10)(+0.11) s, has been established in a stopped beam rare isotope spectroscopic investigations at GSI (RISING) experiment. The nuclei were produced using the fragmentation of a primary beam of (124)Xe on a (9)Be target. From the half-life and the observed γ decays in the daughter nucleus, (96)Ag, we conclude that the β-decaying state is the long predicted 16(+) "spin-gap" isomer. Shell-model calculations, using the Gross-Frenkel interaction and the πν(p(1/2),g(9/2)) model space, show that the isoscalar component of the neutron-proton interaction is essential to explain the origin of the isomer. Core excitations across the N=Z=50 gaps and the Gamow-Teller strength, B(GT) distributions have been studied via large-scale shell-model calculations using the πν(g,d,s) model space to compare with the experimental B(GT) value obtained from the half-life of the isomer.
Language	English
Publishing date	2011-10-21
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.107.172502
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Article ; Online: Coulomb excitation of 104Sn and the strength of the 100Sn shell closure.

Guastalla, G / DiJulio, D D / Górska, M / Cederkäll, J / Boutachkov, P / Golubev, P / Pietri, S / Grawe, H / Nowacki, F / Sieja, K / Algora, A / Ameil, F / Arici, T / Atac, A / Bentley, M A / Blazhev, A / Bloor, D / Brambilla, S / Braun, N /

Camera, F / Dombrádi, Zs / Domingo Pardo, C / Estrade, A / Farinon, F / Gerl, J / Goel, N / Grȩbosz, J / Habermann, T / Hoischen, R / Jansson, K / Jolie, J / Jungclaus, A / Kojouharov, I / Knoebel, R / Kumar, R / Kurcewicz, J / Kurz, N / Lalović, N / Merchan, E / Moschner, K / Naqvi, F / Nara Singh, B S / Nyberg, J / Nociforo, C / Obertelli, A / Pfützner, M / Pietralla, N / Podolyák, Z / Prochazka, A / Ralet, D / Reiter, P / Rudolph, D / Schaffner, H / Schirru, F / Scruton, L / Sohler, D / Swaleh, T / Taprogge, J / Vajta, Zs / Wadsworth, R / Warr, N / Weick, H / Wendt, A / Wieland, O / Winfield, J S / Wollersheim, H J

Physical review letters

2013 Volume 110, Issue 17, Page(s) 172501

Abstract: A measurement of the reduced transition probability for the excitation of the ground state to the first 2+ state in 104Sn has been performed using relativistic Coulomb excitation at GSI. 104Sn is the lightest isotope in the Sn chain for which this ... ...

Abstract	A measurement of the reduced transition probability for the excitation of the ground state to the first 2+ state in 104Sn has been performed using relativistic Coulomb excitation at GSI. 104Sn is the lightest isotope in the Sn chain for which this quantity has been measured. The result is a key point in the discussion of the evolution of nuclear structure in the proximity of the doubly magic nucleus 100Sn. The value B(E2; 0+ → 2+) = 0.10(4) e2b2 is significantly lower than earlier results for 106Sn and heavier isotopes. The result is well reproduced by shell model predictions and therefore indicates a robust N = Z = 50 shell closure.
Language	English
Publishing date	2013-04-26
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.110.172501
Database	MEDical Literature Analysis and Retrieval System OnLINE

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