Direct and β-delayed multi-proton emission from atomic nuclei with a time projection chamber: the cases of 43Cr, 45Fe, and 51Ni

被引：51

作者：

Audirac, L. ^{[1
]}

Ascher, P. ^{[1
]}

Blank, B. ^{[1
]}

Borcea, C. ^{[2
]}

Brown, B. A. ^{[3
,4
]}

Canchel, G. ^{[1
]}

Demonchy, C. E. ^{[1
]}

Santos, F. de Oliveira ^{[5
]}

Dossat, C. ^{[1
]}

Giovinazzo, J. ^{[1
]}

Grevy, S. ^{[1
,5
]}

Hay, L. ^{[1
,7
]}

Huikari, J. ^{[1
]}

Leblanc, S. ^{[1
]}

Matea, I. ^{[6
]}

Pedroza, J. -L. ^{[1
]}

Perrot, L. ^{[6
]}

Pibernat, J. ^{[1
]}

Serani, L. ^{[1
]}

Stodel, C. ^{[5
]}

Thomas, J. -C. ^{[5
]}

机构：

[1] Univ Bordeaux 1, Ctr Etud Nucl Bordeaux Gradignan, IN2P3, UMR CNRS 5797, F-33175 Gradignan, France

[2] Natl Inst Phys & Nucl Engn, Bucharest, Romania

[3] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[4] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

[5] CEA, IN2P3, DSM CNRS, Grand Accelerateur Natl Ions Lourds, F-14076 Caen 5, France

[6] Inst Phys Nucl, F-91406 Orsay, France

[7] Lab PhLAM, F Villeneuve Dascq, France

来源：

EUROPEAN PHYSICAL JOURNAL A | 2012年 / 48卷 / 12期

基金：

美国国家科学基金会;

关键词：

2-PROTON RADIOACTIVITY; DECAY;

D O I：

10.1140/epja/i2012-12179-1

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The two-proton radioactivity of Fe-45 was studied experimentally with a time projection chamber. The aim of the experiment was the reconstruction of the proton tracks in three dimensions. Energy and angular correlations have been determined and the data are compared with theoretical models, in particular with a three-body model. Moreover, the decay of Cr-43 was studied and beta-delayed one-, two- and three-proton emission could be established. The correlations observed for beta-delayed two-proton emission favour a sequential emission. Finally, beta-delayed two-proton emission was observed for the first time for Ni-51.

引用

页码：1 / 12

页数：12

共 21 条

[1] Direct Observation of Two Protons in the Decay of 54Zn [J].

Ascher, P. ;

Audirac, L. ;

Adimi, N. ;

Blank, B. ;

Borcea, C. ;

Brown, B. A. ;

Companis, I. ;

Delalee, F. ;

Demonchy, C. E. ;

Santos, F. de Oliveira ;

Giovinazzo, J. ;

Grevy, S. ;

Grigorenko, L. V. ;

Kurtukian-Nieto, T. ;

Leblanc, S. ;

Pedroza, J. -L. ;

Perrot, L. ;

Pibernat, J. ;

Serani, L. ;

Srivastava, P. C. ;

Thomas, J. -C. .

PHYSICAL REVIEW LETTERS, 2011, 107 (10)

[2] The micro-groove detector [J].

Bellazzini, R ;

Bozzo, M ;

Brez, A ;

Gariano, G ;

Latronico, L ;

Lumb, N ;

Papanestis, A ;

Spandre, G ;

Massai, MM ;

Raffo, R ;

Spezziga, MA .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1999, 424 (2-3) :444-458

[3] A time projection chamber for the three-dimensional reconstruction of two-proton radioactivity events [J].

Blank, B. ;

Hay, L. ;

Huikari, J. ;

Leblanc, S. ;

List, S. ;

Pedroza, J-L ;

Ascher, P. ;

Audirac, L. ;

Borcea, C. ;

Canchel, G. ;

Delalee, F. ;

Demonchy, C. E. ;

Dossat, C. ;

Giovinazzo, J. ;

Hellmuth, P. ;

Marchand, C. ;

Matea, I. ;

de Oliveira, R. ;

Pibernat, J. ;

Rebii, A. ;

Serani, L. ;

Thomas, J. C. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2010, 613 (01) :65-78

[4] Two-proton radioactivity [J].

Blank, Bertram ;

Ploszajczak, Marek .

REPORTS ON PROGRESS IN PHYSICS, 2008, 71 (04)

[5] THE BRANCHING RATIO OF BETA-DELAYED 2-PROTON EMISSION [J].

DETRAZ, C .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1991, 340 (03) :227-230

[6] The decay of proton-rich nuclei in the mass A=36-56 region [J].

Dossat, C. ;

Adimi, N. ;

Aksouh, F. ;

Becker, F. ;

Bey, A. ;

Blank, B. ;

Borcea, C. ;

Borcea, R. ;

Boston, A. ;

Caamano, M. ;

Canchel, G. ;

Chartier, M. ;

Cortina, D. ;

Czajkowski, S. ;

de France, G. ;

Santos, F. de Oliveira ;

Fleury, A. ;

Georgiev, G. ;

Giovinazzo, J. ;

Grevy, S. ;

Grzywacz, R. ;

Hellstroem, M. ;

Honma, M. ;

Janas, Z. ;

Karamanis, D. ;

Kurcewicz, J. ;

Lewitowicz, M. ;

Jimenez, M. J. Lopez ;

Mazzocchi, C. ;

Matea, I. ;

Maslov, V. ;

Mayet, P. ;

Moore, C. ;

Pfuetzner, M. ;

Pravikoff, M. S. ;

Stanoiu, M. ;

Stefan, I. ;

Thomas, J. C. .

NUCLEAR PHYSICS A, 2007, 792 (1-2) :18-86

[7] Two-proton radioactivity studies with 45Fe and 48Ni -: art. no. 054315 [J].

Dossat, C ;

Bey, A ;

Blank, B ;

Canchel, G ;

Fleury, A ;

Giovinazzo, J ;

Matea, I ;

Santos, FD ;

Georgiev, G ;

Grévy, S ;

Stefan, I ;

Thomas, JC ;

Adimi, N ;

Borcea, C ;

Gil, DC ;

Caamano, M ;

Stanoiu, M ;

Aksouh, F ;

Brown, BA ;

Grigorenko, LV .

PHYSICAL REVIEW C, 2005, 72 (05)

[8] First direct observation of two protons in the decay of 45Fe with a time-projection chamber [J].

Giovinazzo, J. ;

Blank, B. ;

Borcea, C. ;

Canchel, G. ;

Dalouzy, J.-C. ;

Demonchy, C. E. ;

Santos, F. de Oliveira ;

Dossat, C. ;

Grevy, S. ;

Hay, L. ;

Huikari, J. ;

Leblanc, S. ;

Matea, I. ;

Pedroza, J.-L. ;

Perrot, L. ;

Pibernat, J. ;

Serani, L. ;

Stodel, C. ;

Thomas, J.-C. .

PHYSICAL REVIEW LETTERS, 2007, 99 (10)

[9] Two-proton radioactivity of 45Fe -: art. no. 102501 [J].

Giovinazzo, J ;

Blank, B ;

Chartier, M ;

Czajkowski, S ;

Fleury, A ;

Jimenez, MJL ;

Pravikoff, MS ;

Thomas, JC ;

Santos, FD ;

Lewitowicz, M ;

Maslov, V ;

Stanoiu, M ;

Grzywacz, R ;

Pfützner, M ;

Borcea, C ;

Brown, BA .

PHYSICAL REVIEW LETTERS, 2002, 89 (10)

[10] ON NEUTRON-DEFICIENT ISOTOPES OF LIGHT NUCLEI AND THE PHENOMENA OF PROTON AND 2-PROTON RADIOACTIVITY [J].

GOLDANSKY, VI .

NUCLEAR PHYSICS, 1960, 19 (05) :482-495

← 1 2 3 →