Two-proton correlations in the decay of 45Fe

被引：135

作者：

Miernik, K.

Dominik, W.

Janas, Z.

Pfutzner, M.

Grigorenko, L.

Bingham, C. R.

Czyrkowski, H.

Cwiok, M.

Darby, I. G.

Dabrowski, R.

Ginter, T.

Grzywacz, R.

Karny, M.

Korgul, A.

Kusmierz, W.

Liddick, S. N.

Rajabali, M.

Rykaczewski, K.

Stolz, A.

机构：

[1] Univ Warsaw, Inst Expt Phys, PL-00681 Warsaw, Poland

[2] Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia

[3] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

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

[5] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.99.192501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The decay of extremely neutron-deficient Fe-45 has been studied in detail by means of a novel type of a gaseous detector employing digital imaging to record tracks of charged particles. The two-proton radioactivity channel was clearly identified. For the first time, the angular and energy correlations between two protons emitted from the nuclear ground state were determined, indicating the genuine three-body character of this decay. The half-life of Fe-45 was found to be 2.6 +/- 0.2 ms and the observed 2p decay branching ratio is 70 +/- 4%.

引用

页数：4

共 22 条

[1] First observation of the T-z=-7/2 nuclei Fe-45 and Ni-49 [J].

Blank, B ;

Czajkowski, S ;

Davi, F ;

DelMoral, R ;

Dufour, JP ;

Fleury, A ;

Marchand, C ;

Pravikoff, MS ;

Benlliure, J ;

Boue, F ;

Collatz, R ;

Heinz, A ;

Hellstrom, M ;

Hu, Z ;

Roeckl, E ;

Shibata, R ;

Summerer, K ;

Janas, Z ;

Karny, M ;

Pfutzner, M ;

Lewitowicz, M .

PHYSICAL REVIEW LETTERS, 1996, 77 (14) :2893-2896

[2] DIPROTON DECAY OF NUCLEI ON THE PROTON DRIP LINE [J].

BROWN, BA .

PHYSICAL REVIEW C, 1991, 43 (04) :R1513-R1517

[3] Di-proton decay of 45Fe -: art. no. 041304 [J].

Brown, BA ;

Barker, FC .

PHYSICAL REVIEW C, 2003, 67 (04) :413041-413043

[4] AN OPTICAL, PROPORTIONAL, CONTINUOUSLY OPERATING AVALANCHE CHAMBER [J].

CHARPAK, G ;

FABRE, JP ;

SAULI, F ;

SUZUKI, M ;

DOMINIK, W .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1987, 258 (02) :177-184

[5] Stability of proton-rich nuclei in the upper sd shell and lower pf shell [J].

Cole, BJ .

PHYSICAL REVIEW C, 1996, 54 (03) :1240-1248

[6] 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)

[7] 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)

[8] 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)

[9] 2-PROTON RADIOACTIVITY [J].

GOLDANSKY, V .

NUCLEAR PHYSICS, 1961, 27 (04) :648-&

[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

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