Giant dipole resonance built on highly excited states of 120sn nuclei populated by inelastic α scattering

E. Ramakrishnan; T. Baumann; A. Azhari; R. A. Kryger; R. Pfaff; M. Thoennessen; S. Yokoyama; J. R. Beene; M. L. Halbert; P. E. Mueller; D. W. Stracener; R. L. Varner; R. J. Charity; J. F. Dempsey; D. G. Sarantites; L. G. Sobotka

doi:10.1103/PhysRevLett.76.2025

Giant dipole resonance built on highly excited states of 120sn nuclei populated by inelastic α scattering

E. Ramakrishnan, T. Baumann, A. Azhari, R. A. Kryger, R. Pfaff, M. Thoennessen, S. Yokoyama, J. R. Beene, M. L. Halbert, P. E. Mueller, D. W. Stracener, R. L. Varner, R. J. Charity, J. F. Dempsey, D. G. Sarantites, L. G. Sobotka

Medical Isotopes and Development

Research output: Contribution to journal › Article › peer-review

105 Scopus citations

Abstract

High energy γ rays from the decay of the giant resonance in hot ¹²⁰Sn nuclei were measured in the excitation energy range of 30-130 MeV. The excited nuclei were populated by inelastic scattering of α particles at 40 and 50 MeV/nucleon. The resonance width was observed to increase monotonically with increasing excitation energy, from 5 MeV at the ground state to ∼12 MeV at the largest excitation energy. Inelastic scattering predominantly populates low angular momentum states, and the observed width increase is thus attributed to fluctuations in the nuclear shape induced by temperature.

Original language	English
Pages (from-to)	2025-2028
Number of pages	4
Journal	Physical Review Letters
Volume	76
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.76.2025
State	Published - Mar 18 1996

Access to Document

10.1103/PhysRevLett.76.2025

Cite this

Ramakrishnan, E., Baumann, T., Azhari, A., Kryger, R. A., Pfaff, R., Thoennessen, M., Yokoyama, S., Beene, J. R., Halbert, M. L., Mueller, P. E., Stracener, D. W., Varner, R. L., Charity, R. J., Dempsey, J. F., Sarantites, D. G., & Sobotka, L. G. (1996). Giant dipole resonance built on highly excited states of 120sn nuclei populated by inelastic α scattering. Physical Review Letters, 76(12), 2025-2028. https://doi.org/10.1103/PhysRevLett.76.2025

@article{7aca4043229941d3ae14aaea3bd1753d,

title = "Giant dipole resonance built on highly excited states of 120sn nuclei populated by inelastic α scattering",

abstract = "High energy γ rays from the decay of the giant resonance in hot 120Sn nuclei were measured in the excitation energy range of 30-130 MeV. The excited nuclei were populated by inelastic scattering of α particles at 40 and 50 MeV/nucleon. The resonance width was observed to increase monotonically with increasing excitation energy, from 5 MeV at the ground state to ∼12 MeV at the largest excitation energy. Inelastic scattering predominantly populates low angular momentum states, and the observed width increase is thus attributed to fluctuations in the nuclear shape induced by temperature.",

author = "E. Ramakrishnan and T. Baumann and A. Azhari and Kryger, {R. A.} and R. Pfaff and M. Thoennessen and S. Yokoyama and Beene, {J. R.} and Halbert, {M. L.} and Mueller, {P. E.} and Stracener, {D. W.} and Varner, {R. L.} and Charity, {R. J.} and Dempsey, {J. F.} and Sarantites, {D. G.} and Sobotka, {L. G.}",

year = "1996",

month = mar,

day = "18",

doi = "10.1103/PhysRevLett.76.2025",

language = "English",

volume = "76",

pages = "2025--2028",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "12",

}

Ramakrishnan, E, Baumann, T, Azhari, A, Kryger, RA, Pfaff, R, Thoennessen, M, Yokoyama, S, Beene, JR, Halbert, ML, Mueller, PE , Stracener, DW, Varner, RL, Charity, RJ, Dempsey, JF, Sarantites, DG & Sobotka, LG 1996, 'Giant dipole resonance built on highly excited states of 120sn nuclei populated by inelastic α scattering', Physical Review Letters, vol. 76, no. 12, pp. 2025-2028. https://doi.org/10.1103/PhysRevLett.76.2025

TY - JOUR

T1 - Giant dipole resonance built on highly excited states of 120sn nuclei populated by inelastic α scattering

AU - Ramakrishnan, E.

AU - Baumann, T.

AU - Azhari, A.

AU - Kryger, R. A.

AU - Pfaff, R.

AU - Thoennessen, M.

AU - Yokoyama, S.

AU - Beene, J. R.

AU - Halbert, M. L.

AU - Mueller, P. E.

AU - Stracener, D. W.

AU - Varner, R. L.

AU - Charity, R. J.

AU - Dempsey, J. F.

AU - Sarantites, D. G.

AU - Sobotka, L. G.

PY - 1996/3/18

Y1 - 1996/3/18

N2 - High energy γ rays from the decay of the giant resonance in hot 120Sn nuclei were measured in the excitation energy range of 30-130 MeV. The excited nuclei were populated by inelastic scattering of α particles at 40 and 50 MeV/nucleon. The resonance width was observed to increase monotonically with increasing excitation energy, from 5 MeV at the ground state to ∼12 MeV at the largest excitation energy. Inelastic scattering predominantly populates low angular momentum states, and the observed width increase is thus attributed to fluctuations in the nuclear shape induced by temperature.

AB - High energy γ rays from the decay of the giant resonance in hot 120Sn nuclei were measured in the excitation energy range of 30-130 MeV. The excited nuclei were populated by inelastic scattering of α particles at 40 and 50 MeV/nucleon. The resonance width was observed to increase monotonically with increasing excitation energy, from 5 MeV at the ground state to ∼12 MeV at the largest excitation energy. Inelastic scattering predominantly populates low angular momentum states, and the observed width increase is thus attributed to fluctuations in the nuclear shape induced by temperature.

UR - http://www.scopus.com/inward/record.url?scp=4243420256&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.76.2025

DO - 10.1103/PhysRevLett.76.2025

M3 - Article

AN - SCOPUS:4243420256

SN - 0031-9007

VL - 76

SP - 2025

EP - 2028

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

ER -

Giant dipole resonance built on highly excited states of 120sn nuclei populated by inelastic α scattering

Abstract

Access to Document

Other files and links

Fingerprint

Cite this