What can we learn from giant resonances in light nuclei?

被引：0

作者：

Usman, I. T. ^{[1
]}

Carter, J. ^{[1
]}

Donaldson, L. M. ^{[1
,2
]}

Adsley, P. ^{[1
,2
]}

Bahini, A. ^{[1
,2
]}

Neveling, R.

Jingo, M. ^{[1
,3
]}

Kureba, C. O. ^{[1
,4
]}

Latif, M. B. ^{[1
,5
]}

Olorunfunmi, S. D. ^{[1
,6
]}

Sideras-Haddad, E. ^{[1
]}

Smit, F. D. ^{[2
]}

Kheswa, N. Y. ^{[2
]}

Von Neumann-Cosel, P. ^{[7
]}

Richter, A. ^{[7
]}

Roth, R. ^{[7
]}

Ponomarev, V. Yu ^{[7
]}

Papakonstantinou ^{[8
]}

Litvinova, E. ^{[9
]}

Arsenyev, N. ^{[10
]}

Nesterenko, V. O. ^{[10
]}

Severyukhin, A. ^{[10
]}

Fujita, H. ^{[11
]}

机构：

[1] Univ Witwatersrand, Sch Phys, ZA-2050 Johannesburg, South Africa

[2] SSC Lab, IThemba LABS, Cape Town 7131, Faure, South Africa

[3] Univ Witwatersrand, Sch Clin Med, ZA-2000 Johannesburg, South Africa

[4] Botswana Int Univ Sci & Technol, Dept Phys & Astron, Palapye, Botswana

[5] Obafemi Awolowo Univ, Ctr Energy Res & Dev, Ife 220005, Nigeria

[6] Obafemi Awolowo Univ, Dept Phys & Engn Phys, Ife 220005, Nigeria

[7] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany

[8] Inst for Basic Sci Korea, Rare Isotope Sci Project, Daejeon 305811, South Korea

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

[10] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia

[11] Osaka Univ, Nucl Phys Res Ctr, Ibaraki, Osaka 6500047, Japan

来源：

28TH INTERNATIONAL NUCLEAR PHYSICS CONFERENCE, INPC 2022 | 2023年 / 2586卷

关键词：

DIPOLE RESONANCE;

D O I：

10.1088/1742-6596/2586/1/012056

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Extensive experimental investigations into understanding the fine structure of giant resonances in nuclei across the periodic table have been carried out in recent years using the state-of-the-art K600 magnetic spectrometer of iThemba LABS, Cape Town, South Africa. Based on the established results in comparison to various theoretical calculations, it has been found that the fine structure observed in different giant resonances, namely Isoscalar Giant Quadrupole Resonance (ISGQR), Isovector Giant Dipole Resonance (IVGDR) and Isoscalar Giant Monopole Resonance (ISGMR), in light nuclei such as Ca-40, Si-28 and Al-27 is dominated by Landau damping although signatures for the role of the spreading width are also found. In this report, characteristic energy scales extracted in light nuclei are compared with the state-of-the-art theoretical calculations, while the fine structures results obtained are compared using semblance analysis to search for possible signatures of common fragmentation patterns induced by Landau damping and coupling to 2p-2h states obtained from different giant resonances.

引用

页数：5

共 17 条

[1]

[Anonymous], 1998, A Wavelet Tour of Signal Processing

[2] Isoscalar giant monopole resonance in 24Mg and 28Si: Effect of coupling between the isoscalar monopole and quadrupole strength [J].

Bahini, A. ;

Nesterenko, V. O. ;

Usman, I. T. ;

Von Neumann-Cosel, P. ;

Neveling, R. ;

Carter, J. ;

Kvasil, J. ;

Repko, A. ;

Adsley, P. ;

Botha, N. ;

Bruemmer, J. W. ;

Donaldson, L. M. ;

Jongile, S. ;

Khumalo, T. C. ;

Latif, M. B. ;

Li, K. C. W. ;

Mabika, P. Z. ;

Molema, P. T. ;

Moodley, C. S. ;

Olorunfunmi, S. D. ;

Papka, P. ;

Pellegri, L. ;

Rebeiro, B. ;

Sideras-Haddad, E. ;

Smit, F. D. ;

Triambak, S. ;

van Zyl, J. J. .

PHYSICAL REVIEW C, 2022, 105 (02)

[3] Damping of the isovector giant dipole resonance in 40,48Ca [J].

Carter, J. ;

Donaldson, L. M. ;

Fujita, H. ;

Fujita, Y. ;

Jingo, M. ;

Kureba, C. O. ;

Latif, M. B. ;

Litvinova, E. ;

Nemulodi, F. ;

Von Neumann-Cosel, P. ;

Neveling, R. ;

Papakonstantinou, P. ;

Papka, P. ;

Pellegri, L. ;

Ponomarev, V. Yu ;

Richter, A. ;

Roth, R. ;

Sideras-Haddad, E. ;

Smit, F. D. ;

Swartz, J. A. ;

Tamii, A. ;

Trippel, R. ;

Usman, I. T. ;

Wibowo, H. .

PHYSICS LETTERS B, 2022, 833

[4] Comparing time series using wavelet-based semblance analysis [J].

Cooper, G. R. J. ;

Cowan, D. R. .

COMPUTERS & GEOSCIENCES, 2008, 34 (02) :95-102

[5] Fine structure of the isovector giant dipole resonance in 142-150Nd and 152Sm [J].

Donaldson, L. M. ;

Carter, J. ;

Von Neumann-Cosel, P. ;

Nesterenko, V. O. ;

Neveling, R. ;

Reinhard, P-G ;

Usman, I. T. ;

Adsley, P. ;

Bertulani, C. A. ;

Brummer, J. W. ;

Buthelezi, E. Z. ;

Cooper, G. R. J. ;

Fearick, R. W. ;

Fortsch, S., V ;

Fujita, H. ;

Fujita, Y. ;

Jingo, M. ;

Kheswa, N. Y. ;

Kleinig, W. ;

Kureba, C. O. ;

Kvasil, J. ;

Latif, M. ;

Li, K. C. W. ;

Mira, J. P. ;

Nemulodi, F. ;

Papka, P. ;

Pellegri, L. ;

Pietralla, N. ;

Ponomarev, V. Yu ;

Rebeiro, B. ;

Richter, A. ;

Shirikova, N. Yu ;

Sideras-Haddad, E. ;

Sushkov, A., V ;

Smit, F. D. ;

Steyn, G. F. ;

Swartz, J. A. ;

Tamii, A. .

PHYSICAL REVIEW C, 2020, 102 (06)

[6] Deformation dependence of the isovector giant dipole resonance: Theneodymium isotopic chain revisited [J].

Donaldson, L. M. ;

Bertulani, C. A. ;

Carter, J. ;

Nesterenko, V. O. ;

von Neumann-Cosel, P. ;

Neveling, R. ;

Ponomarev, V. Yu. ;

Reinhard, P. -G. ;

Usman, I. T. ;

Adsley, P. ;

Brummer, J. W. ;

Buthelezib, E. Z. ;

Cooper, G. R. J. ;

Fearick, R. W. ;

Fortsch, S. V. ;

Fujita, H. ;

Fujita, Y. ;

Jingo, M. ;

Kleinig, W. ;

Kureba, C. O. ;

Kvasil, J. ;

Latif, M. ;

Li, K. C. W. ;

Mira, J. P. ;

Nemulodi, F. ;

Papka, P. ;

Pellegri, L. ;

Pietralla, N. ;

Richter, A. ;

Sideras-Haddad, E. ;

Smit, F. D. ;

Steyn, G. F. ;

Swartz, J. A. ;

Tamii, A. .

PHYSICS LETTERS B, 2018, 776 :133-138

[7] Studies of the Giant Dipole Resonance in 27Al, 40Ca, 56Fe, 58Ni and 208Pb with high energy-resolution inelastic proton scattering under 0° [J].

Jingo, M. ;

Buthelezi, E. Z. ;

Carter, J. ;

Cooper, G. R. J. ;

Fearick, R. W. ;

Fortsch, S. V. ;

Kureba, C. O. ;

Krumbholz, A. M. ;

von Neumann-Cosel, P. ;

Neveling, R. ;

Papka, P. ;

Poltoratska, I. ;

Ponomarev, V. Yu. ;

Richter, A. ;

Sideras-Haddad, E. ;

Smit, F. D. ;

Swartz, J. A. ;

Tamii, A. ;

Usman, I. T. .

EUROPEAN PHYSICAL JOURNAL A, 2018, 54 (12)

[8] Wavelet signatures of K-splitting of the Isoscalar Giant Quadrupole Resonance in deformed nuclei from high-resolution ( p, p′) scattering off 146,148,150Nd [J].

Kureba, C. O. ;

Buthelezi, Z. ;

Carter, J. ;

Cooper, G. R. J. ;

Fearick, R. W. ;

Fortsch, S. V. ;

Jingo, M. ;

Kleinig, W. ;

Krugmann, A. ;

Krumbolz, A. M. ;

Kvasil, J. ;

Mabiala, J. ;

Mira, J. P. ;

Nesterenko, V. O. ;

von Neumann-Cosel, P. ;

Neveling, R. ;

Papka, P. ;

Reinhard, P. -G. ;

Richter, A. ;

Sideras-Haddad, E. ;

Smit, F. D. ;

Steyn, G. F. ;

Swartz, J. A. ;

Tamii, A. ;

Usman, I. T. .

PHYSICS LETTERS B, 2018, 779 :269-274

[9]

Latif M B, 2019, Acta Physica Polonica, V50

[10] High energy-resolution zero-degree facility for light-ion scattering and reactions at iTHEMBA LABS (vol 654, pg 29, 2011) [J].

Neveling, R. ;

Fujita, H. ;

Smit, F. D. ;

Adachi, T. ;

Berg, G. P. A. ;

Buthelezi, E. Z. ;

Carter, J. ;

Conradie, J. L. ;

Couder, M. ;

Fearick, R. W. ;

Foertsch, S. V. ;

Fourie, D. T. ;

Fujita, Y. ;

Goerres, J. ;

Hatanaka, K. ;

Jingo, M. ;

Krumbholz, A. M. ;

Kureba, C. O. ;

Mira, J. P. ;

Murray, S. H. T. ;

von Neumann-Cosel, P. ;

O'Brien, S. ;

Papka, P. ;

Poltoratska, I. ;

Richter, A. ;

Sideras-Haddad, E. ;

Swartz, J. A. ;

Tamii, A. ;

Usman, I. T. ;

van Zyl, J. J. ;

Mabiala, J. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2012, 662 (01) :101-101

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