Interplay between sequential and prompt two-proton decay from the first excited state of 16Ne

被引：35

作者：

Brown, K. W. ^{[1
,2
]}

Charity, R. J. ^{[1
,2
]}

Sobotka, L. G. ^{[1
,2
]}

Grigorenko, L. V. ^{[3
,4
,5
]}

Golubkova, T. A. ^{[6
]}

Bedoor, S.

Buhro, W. W. ^{[9
]}

Chajecki, Z. ^{[9
]}

Elson, J. M. ^{[1
,2
]}

Lynch, W. G. ^{[9
,10
]}

Manfredi, J. ^{[9
,10
]}

McNeel, D. G. ^{[7
,8
]}

Reviol, W. ^{[1
,2
]}

Shane, R. ^{[9
,10
]}

Showalter, R. H. ^{[9
,10
]}

Tsang, M. B. ^{[9
,10
]}

Winkelbauer, J. R. ^{[9
,10
]}

Wuosmaa, A. H. ^{[7
,8
]}

机构：

[1] Washington Univ, Dept Chem, St Louis, MO 63130 USA

[2] Washington Univ, Dept Phys, St Louis, MO 63130 USA

[3] JINR, Flerov Lab Nucl React, RU-141980 Dubna, Russia

[4] Natl Res Nucl Univ MEPhI, RU-115409 Moscow, Russia

[5] Natl Res Ctr Kurchatov Inst, RU-123182 Moscow, Russia

[6] Moscow MV Lomonosov State Univ, Adv Educ & Sci Ctr, RU-121357 Moscow, Russia

[7] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA

[8] Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA

[9] Michigan State Univ, Natl Supercond Cyclotron Lab, E Lansing, MI 48824 USA

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

来源：

PHYSICAL REVIEW C | 2015年 / 92卷 / 03期

基金：

俄罗斯基础研究基金会; 美国国家科学基金会;

关键词：

NUCLEI;

D O I：

10.1103/PhysRevC.92.034329

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 first excited, J(pi) = 2(+) state of Ne-16 at E* = 1.69(2) MeV is well populated in neutron knockout reactions with a Ne-17 beam and the correlations between the momenta of the three final fragments following 2p decay were measured. The correlation pattern showed aspects of both sequential and diprotonlike decay, which were reproduced in three-body O-14 + p + p calculations. These calculations suggest that interference between these processes is responsible for the observed features which can be described in terms of a "tethered decay mechanism." The intrinsic width of this state was constrained to be from 100 to 250 keV. Higher excited states populating the N-13 + p + p + p exit channel were found at E* = 8.37(10) and 10.76(20) MeV.

引用

页数：12

共 20 条

[11] Possibility to study a two-proton halo in 17Ne -: art. no. 051604
Grigorenko, LV
Parfenova, YL
Zhukov, MV
[J]. PHYSICAL REVIEW C, 2005, 71 (05):
[12] Two-proton widths of 12O, 16Ne, and three-body mechanism of Thomas-Ehrman shift -: art. no. 042502
Grigorenko, LV
Mukha, IG
Thompson, IJ
Zhukov, MV
[J]. PHYSICAL REVIEW LETTERS, 2002, 88 (04) : 4
[13] MASSES OF UNBOUND NUCLEI NE-16, F-15, AND O-12
KEKELIS, GJ
ZISMAN, MS
SCOTT, DK
JAHN, R
VIEIRA, J
CERNY, J
Ajzenberg, S
[J]. PHYSICAL REVIEW C, 1978, 17 (06): : 1929 - 1938
[14] Studies of continuum states in 16 Ne using three-body correlation techniques
Marganiec, J.
Wamers, F.
Aksouh, F.
Aksyutina, Yu.
Alvarez-Pol, H.
Aumann, T.
Beceiro-Novo, S.
Boretzky, K.
Borge, M. J. G.
Chartier, M.
Chatillon, A.
Chulkov, L. V.
Cortina-Gil, D.
Emling, H.
Ershova, O.
Fraile, L. M.
Fynbo, H. O. U.
Galaviz, D.
Geissel, H.
Heil, M.
Hoffmann, D. H. H.
Hoffmann, J.
Johansson, H. T.
Jonson, B.
Karagiannis, C.
Kiselev, O. A.
Kratz, J. V.
Kulessa, R.
Kurz, N.
Langer, C.
Lantz, M.
Le Bleis, T.
Lemmon, R.
Litvinov, Yu. A.
Mahata, K.
Muentz, C.
Nilsson, T.
Nociforo, C.
Nyman, G.
Ott, W.
Panin, V.
Paschalis, S.
Perea, A.
Plag, R.
Reifarth, R.
Richter, A.
Rodriguez-Tajes, C.
Rossi, D.
Riisager, K.
Savran, D.
[J]. EUROPEAN PHYSICAL JOURNAL A, 2015, 51 (01) : 1 - 9
[15] Spectroscopy of proton-unbound nuclei by tracking their decay products in-flight: One- and two-proton decays of 15F, 16Ne, and 19Na
Mukha, I.
Suemmerer, K.
Acosta, L.
Alvarez, M. A. G.
Casarejos, E.
Chatillon, A.
Cortina-Gil, D.
Egorova, I. A.
Espino, J. M.
Fomichev, A.
Garcia-Ramos, J. E.
Geissel, H.
Gomez-Camacho, J.
Grigorenko, L.
Hofmann, J.
Kiselev, O.
Korsheninnikov, A.
Kurz, N.
Litvinov, Yu. A.
Litvinova, E.
Martel, I.
Nociforo, C.
Ott, W.
Pfuetzner, M.
Rodriguez-Tajes, C.
Roeckl, E.
Stanoiu, M.
Timofeyuk, N. K.
Weick, H.
Woods, P. J.
[J]. PHYSICAL REVIEW C, 2010, 82 (05):
[16] Thomas-Ehrman shifts in nuclei around 16O and role of residual nuclear interaction
Ogawa, K
Nakada, H
Hino, S
Motegi, R
[J]. PHYSICS LETTERS B, 1999, 464 (3-4) : 157 - 163
[17] Radioactive decays at limits of nuclear stability
Pfuetzner, M.
Karny, M.
Grigorenko, L. V.
Riisager, K.
[J]. REVIEWS OF MODERN PHYSICS, 2012, 84 (02) : 567 - 619
[18] The high resolution array (HiRA) for rare isotope beam experiments
Wallace, M. S.
Famianoa, M. A.
van Goethem, M. -J.
Rogers, A. M.
Lynch, W. G.
Clifford, J.
Delaunay, F.
Lee, J.
Labostov, S.
Mocko, M.
Morris, L.
Moroni, A.
Nett, B. E.
Oostdyk, D. J.
Krishnasamy, R.
Tsang, M. B.
de Souza, R. T.
Hudan, S.
Sobotka, L. G.
Charity, R. J.
Elson, J.
Engel, G. L.
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2007, 583 (2-3) : 302 - 312
[19] First Observation of the Unbound Nucleus 15Ne
Wamers, F.
Marganiec, J.
Aksouh, F.
Aksyutina, Yu.
Alvarez-Pol, H.
Aumann, T.
Beceiro-Novo, S.
Boretzky, K.
Borge, M. J. G.
Chartier, M.
Chatillon, A.
Chulkov, L. V.
Cortina-Gil, D.
Emling, H.
Ershova, O.
Fraile, L. M.
Fynbo, H. O. U.
Galaviz, D.
Geissel, H.
Heil, M.
Hoffmann, D. H. H.
Johansson, H. T.
Jonson, B.
Karagiannis, C.
Kiselev, O. A.
Kratz, J. V.
Kulessa, R.
Kurz, N.
Langer, C.
Lantz, M.
Le Bleis, T.
Lemmon, R.
Litvinov, Yu. A.
Mahata, K.
Muentz, C.
Nilsson, T.
Nociforo, C.
Nyman, G.
Ott, W.
Panin, V.
Paschalis, S.
Perea, A.
Plag, R.
Reifarth, R.
Richter, A.
Rodriguez-Tajes, C.
Rossi, D.
Riisager, K.
Savran, D.
Schrieder, G.
[J]. PHYSICAL REVIEW LETTERS, 2014, 112 (13)
[20] 15C(d, p)16C Reaction and Exotic Behavior in 16C
Wuosmaa, A. H.
Back, B. B.
Baker, S.
Brown, B. A.
Deibel, C. M.
Fallon, P.
Hoffman, C. R.
Kay, B. P.
Lee, H. Y.
Lighthall, J. C.
Macchiavelli, A. O.
Marley, S. T.
Pardo, R. C.
Rehm, K. E.
Schiffer, J. P.
Shetty, D. V.
Wiedeking, M.
[J]. PHYSICAL REVIEW LETTERS, 2010, 105 (13)

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