Ab Initio Calculation of the Spectrum and Structure of 16O

被引：107

作者：

Epelbaum, Evgeny ^{[1
]}

Krebs, Hermann ^{[1
]}

Laehde, Timo A. ^{[2
,3
]}

Lee, Dean ^{[4
]}

Meissner, Ulf-G. ^{[2
,3
,5
,6
,7
]}

Rupak, Gautam ^{[8
]}

机构：

[1] Ruhr Univ Bochum, Inst Theoret Phys 2, D-44870 Bochum, Germany

[2] Forschungszentrum Julich, Inst Kernphys, Inst Adv Simulat, D-52425 Julich, Germany

[3] Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany

[4] N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA

[5] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany

[6] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany

[7] Forschungszentrum Julich, JARA High Performance Comp, D-52425 Julich, Germany

[8] Mississippi State Univ, Dept Phys & Astron, Mississippi State, MS 39762 USA

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 10期

基金：

美国国家科学基金会;

关键词：

ELECTRON-SCATTERING; LIGHT-NUCLEI; MODEL; WIDTHS; STATES;

D O I：

10.1103/PhysRevLett.112.102501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present ab initio lattice calculations of the low-energy even-parity states of O-16 using chiral nuclear effective field theory. We find good agreement with the empirical energy spectrum, and with the electromagnetic properties and transition rates. For the ground state, we find that the nucleons are arranged in a tetrahedral configuration of alpha clusters. For the first excited spin-0 state, we find that the predominant structure is a square configuration of alpha clusters, with rotational excitations that include the first spin-2 state.

引用

页数：5

共 29 条

[21] Lattice simulations for few- and many-body systems
Lee, Dean
[J]. PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 63, NO 1, 2009, 63 (01): : 117 - 154
[22] Chiral effective field theory and nuclear forces
Machleidt, R.
Entem, D. R.
[J]. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2011, 503 (01): : 1 - 70
[23] HIGH-RESOLUTION INELASTIC ELECTRON-SCATTERING AND RADIATION WIDTHS OF LEVELS IN O-16
MISKA, H
GRAF, HD
RICHTER, A
SCHNEIDER, R
SCHULL, D
SPAMER, E
THEISSEN, H
TITZE, O
WALCHER, T
[J]. PHYSICS LETTERS B, 1975, 58 (02) : 155 - 158
[24] WIDTHS OF THE 6.92 AND 7.12 MEV LEVELS IN O-16 AND THE INFLUENCE OF THE EFFECTIVE TEMPERATURE
MOREH, R
SELLYEY, WC
SUTTON, D
VODHANEL, R
[J]. PHYSICAL REVIEW C, 1985, 31 (06): : 2314 - 2316
[25] THE EXCITED O+ STATE AND CENTER-OF-MASS EFFECTS IN OXYGEN-16
NAGAI, H
[J]. PROGRESS OF THEORETICAL PHYSICS, 1962, 27 (04): : 619 - 637
[26] EVIDENCE FOR THE TETRAHEDRAL NATURE OF O-16
ROBSON, D
[J]. PHYSICAL REVIEW LETTERS, 1979, 42 (14) : 876 - 879
[27] Similarity-Transformed Chiral NN+3N Interactions for the Ab Initio Description of 12C and 16O
Roth, Robert
Langhammer, Joachim
Calci, Angelo
Binder, Sven
Navratil, Petr
[J]. PHYSICAL REVIEW LETTERS, 2011, 107 (07)
[28] Alpha cluster condensation in 12C and 16O -: art. no. 192501
Tohsaki, A
Horiuchi, H
Schuck, P
Röpke, G
[J]. PHYSICAL REVIEW LETTERS, 2001, 87 (19) : 1 - 192501
[29] Molecular viewpoints in nuclear structure
Wheeler, JA
[J]. PHYSICAL REVIEW, 1937, 52 (11): : 1083 - 1106

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