Near-Threshold Dipole Strength in 10Be with Isoscalar Character

被引：0

作者：

Chen, J. ^{[1
,2
]}

Ayyad, Y. ^{[3
]}

Bazin, D. ^{[4
]}

Mittig, W. ^{[4
]}

Serikow, M. Z. ^{[4
]}

Keeley, N. ^{[5
]}

Wang, S. M. ^{[6
,7
,8
]}

Zhou, B. ^{[6
,7
,8
]}

Zamora, J. C. ^{[4
]}

Beceiro-Novo, S. ^{[9
]}

Cortesi, M. ^{[4
]}

Denudt, M. ^{[4
]}

Heinitz, S. ^{[10
]}

Giraud, S. ^{[4
]}

Gueye, P. ^{[4
]}

Hoffman, C. R. ^{[2
]}

Kay, B. P. ^{[2
]}

Maugeri, E. A. ^{[10
]}

Monteagudo, B. G. ^{[4
,11
]}

Li, H. ^{[12
]}

Liu, W. P. ^{[1
,13
]}

Munoz, A. ^{[3
]}

Ndayisabye, F. ^{[4
]}

Pereira, J. ^{[4
]}

Rijal, N. ^{[4
]}

Santamaria, C. ^{[4
]}

Schumann, D. ^{[10
]}

Watwood, N. ^{[4
]}

Votta, G. ^{[4
]}

Yin, P. ^{[14
]}

Yuan, C. X. ^{[15
]}

Zhang, Y. N. ^{[15
]}

机构：

[1] Southern Univ Sci & Technol, Coll Sci, Shenzhen 518055, Guangdong, Peoples R China

[2] Argonne Natl Lab, Phys Div, Lemont, IL 60439 USA

[3] Univ Santiago de Compostela, IGFAE, E-15782 Santiago De Compostela, Spain

[4] Michigan State Univ, FRIB NSCL Lab, E Lansing, MI 48824 USA

[5] Natl Ctr Nucl Res, Ul Andrzeja Soltana, Otwock, Poland

[6] Fudan Univ, Inst Modern Phys, Key Lab Nucl Phys & Ion Beam Applicat MOE, Shanghai 200433, Peoples R China

[7] NSFC, Dept Fis Aplicada, Campus Univ, E-36310 Shanghai, Spain

[8] Fudan Univ, Shanghai 200438, Peoples R China

[9] Univ A Coruna, Grp Polimeros, CITENI, Campus Ind, Ferrol 15471, Spain

[10] Paul Scherrer Inst, Lab Radiochem, Villigen, Switzerland

[11] Hope Coll, Dept Phys, Holland, MI 49422 USA

[12] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

[13] China Inst Atom Energy, POB 27547, Beijing 102413, Peoples R China

[14] Henan Univ Sci & Technol, Coll Phys & Engn, Luoyang 471023, Peoples R China

[15] Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2025年 / 134卷 / 01期

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

NUCLEAR; CLUSTERS; MODEL;

D O I：

10.1103/PhysRevLett.134.012502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Isoscalar dipole transitions are a distinctive fingerprint of cluster structures. A 1- resonance at 7.27 (10) MeV, located just below the alpha-emission threshold, has been observed in the deuteron inelastic scattering reactions off 10Be. The deformation lengths of the excited states in 10Be below 9 MeV have been inferred from the differential cross sections using coupled channel calculations. This observed 1- resonance has isoscalar characteristics and exhausts approximately 5%-15% of the isoscalar dipole energy- weighted sum rule, providing evidence for pronounced alpha cluster structure in 10Be. The Gamow coupled channel approach supports this interpretation and suggests the near-threshold effect might be playing an important role in this excitation energy domain. The alpha + alpha + n + n four-body calculation reproduces the observed enhanced dipole strength, implying that the four-body cluster structure is essential to describe the 1- states in 10Be.

引用

页数：7

共 50 条

[41] Stabilization and decay in near-threshold photodetachment
Haan, SL
Grobe, R
LASER PHYSICS, 1998, 8 (04) : 885 - 889
[42] NEAR-THRESHOLD TRACK FORMATION IN GLASS
KARAMIAN, SA
RADIATION MEASUREMENTS, 1995, 25 (1-4) : 125 - 126
[43] NEAR-THRESHOLD LASER SPUTTERING OF GOLD
BENNETT, TD
GRIGOROPOULOS, CP
KRAJNOVICH, DJ
JOURNAL OF APPLIED PHYSICS, 1995, 77 (02) : 849 - 864
[44] Structure of near-threshold quasibound states
Kamiya, Yuki
Hyodo, Tetsuo
PHYSICAL REVIEW C, 2016, 93 (03)
[45] Nonlinearities of near-threshold contrast transduction
Kontsevich, L. L.
Tyler, C. W.
PERCEPTION, 1997, 26 : 2 - 2
[46] Towards Near-Threshold Server Processors
Pahlevan, Ali
Picorel, Javier
Zarandi, Arash Pourhabibi
Rossi, Davide
Zapater, Marina
Bartolini, Andrea
Del Valle, Pablo G.
Atienza, David
Benini, Luca
Falsafi, Babak
PROCEEDINGS OF THE 2016 DESIGN, AUTOMATION & TEST IN EUROPE CONFERENCE & EXHIBITION (DATE), 2016, : 7 - 12
[47] Near-Threshold Voltage (NTV) Computing
De, Vivek
Vangal, Sriram
Krishnamurthy, Ram
IEEE DESIGN & TEST, 2017, 34 (02) : 24 - 30
[48] NEAR-THRESHOLD EXCITATION OF CONTINUUM RESONANCES
PIRAUX, B
BHATT, R
KNIGHT, PL
PHYSICAL REVIEW A, 1990, 41 (11): : 6296 - 6312
[49] Near-threshold η production in pp collisions
吕齐放
李德民
Chinese Physics C, 2015, (11) : 30 - 37
[50] Near-threshold photoionization spectra of strontium
Baig, MA
Yaseen, M
Ali, R
Nadeem, A
Bhatti, SA
CHEMICAL PHYSICS LETTERS, 1998, 296 (3-4) : 403 - 407

← 1 2 3 4 5 →