γ-ray decay from neutron-bound and unbound states in Mo 95 and a novel technique for spin determination

M. Wiedeking; M. Krtička; L. A. Bernstein; J. M. Allmond; M. S. Basunia; D. L. Bleuel; J. T. Burke; B. H. Daub; P. Fallon; R. B. Firestone; B. L. Goldblum; R. Hatarik; P. T. Lake; A. C. Larsen; I. Y. Lee; S. R. Lesher; S. Paschalis; M. Petri; L. Phair; N. D. Scielzo; A. Volya

doi:10.1103/PhysRevC.93.024303

γ-ray decay from neutron-bound and unbound states in Mo 95 and a novel technique for spin determination

M. Wiedeking, M. Krtička, L. A. Bernstein, J. M. Allmond, M. S. Basunia, D. L. Bleuel, J. T. Burke, B. H. Daub, P. Fallon, R. B. Firestone, B. L. Goldblum, R. Hatarik, P. T. Lake, A. C. Larsen, I. Y. Lee, S. R. Lesher, S. Paschalis, M. Petri, L. Phair, N. D. ScielzoA. Volya

Physics

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

Abstract

The emission of γ rays from neutron-bound and neutron-unbound states in Mo95, populated in the Mo94(d,p) reaction, has been investigated. Charged particles and γ radiation were detected with arrays of annular silicon and Clover-type high-purity Germanium detectors, respectively. Utilizing p-γ and p-γ-γ coincidences, the Mo95 level scheme was greatly enhanced with 102 new transitions and 43 new states. It agrees well with shell model calculations for excitation energies below ≈2 MeV. From p-γ coincidence data, a new method for the determination of spins of discrete levels is proposed. The method exploits the suppression of high-angular momentum neutron emission from levels with high spins populated in the (d,p) reaction above the neutron separation energy. Spins for almost all Mo95 levels below 2 MeV (and for a few levels above) have been determined with this method.

Original language	English
Article number	024303
Pages (from-to)	1-11
Number of pages	11
Journal	Physical Review C
Volume	93
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.93.024303
Publication status	Published - 1 Feb 2016

Bibliographical note

©2016 American Physical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

Access to Document

10.1103/PhysRevC.93.024303

PhysRevC.93.024303
©2016 American Physical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.
Final published version, 981 KB

Cite this

Wiedeking, M., Krtička, M., Bernstein, L. A., Allmond, J. M., Basunia, M. S., Bleuel, D. L., Burke, J. T., Daub, B. H., Fallon, P., Firestone, R. B., Goldblum, B. L., Hatarik, R., Lake, P. T., Larsen, A. C., Lee, I. Y., Lesher, S. R., Paschalis, S., Petri, M., Phair, L., ... Volya, A. (2016). γ-ray decay from neutron-bound and unbound states in Mo 95 and a novel technique for spin determination. Physical Review C, 93(2), 1-11. Article 024303. https://doi.org/10.1103/PhysRevC.93.024303

@article{ceabcf5751174a36bcc97e1aa74909b6,

title = "γ-ray decay from neutron-bound and unbound states in Mo 95 and a novel technique for spin determination",

abstract = "The emission of γ rays from neutron-bound and neutron-unbound states in Mo95, populated in the Mo94(d,p) reaction, has been investigated. Charged particles and γ radiation were detected with arrays of annular silicon and Clover-type high-purity Germanium detectors, respectively. Utilizing p-γ and p-γ-γ coincidences, the Mo95 level scheme was greatly enhanced with 102 new transitions and 43 new states. It agrees well with shell model calculations for excitation energies below ≈2 MeV. From p-γ coincidence data, a new method for the determination of spins of discrete levels is proposed. The method exploits the suppression of high-angular momentum neutron emission from levels with high spins populated in the (d,p) reaction above the neutron separation energy. Spins for almost all Mo95 levels below 2 MeV (and for a few levels above) have been determined with this method.",

author = "M. Wiedeking and M. Krti{\v c}ka and Bernstein, {L. A.} and Allmond, {J. M.} and Basunia, {M. S.} and Bleuel, {D. L.} and Burke, {J. T.} and Daub, {B. H.} and P. Fallon and Firestone, {R. B.} and Goldblum, {B. L.} and R. Hatarik and Lake, {P. T.} and Larsen, {A. C.} and Lee, {I. Y.} and Lesher, {S. R.} and S. Paschalis and M. Petri and L. Phair and Scielzo, {N. D.} and A. Volya",

note = "{\textcopyright}2016 American Physical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher{\textquoteright}s self-archiving policy. Further copying may not be permitted; contact the publisher for details.",

year = "2016",

month = feb,

day = "1",

doi = "10.1103/PhysRevC.93.024303",

language = "English",

volume = "93",

pages = "1--11",

journal = "Physical Review C",

issn = "0556-2813",

publisher = "American Physical Society",

number = "2",

}

Wiedeking, M, Krtička, M, Bernstein, LA, Allmond, JM, Basunia, MS, Bleuel, DL, Burke, JT, Daub, BH, Fallon, P, Firestone, RB, Goldblum, BL, Hatarik, R, Lake, PT, Larsen, AC, Lee, IY, Lesher, SR, Paschalis, S , Petri, M, Phair, L, Scielzo, ND & Volya, A 2016, 'γ-ray decay from neutron-bound and unbound states in Mo 95 and a novel technique for spin determination', Physical Review C, vol. 93, no. 2, 024303, pp. 1-11. https://doi.org/10.1103/PhysRevC.93.024303

TY - JOUR

T1 - γ-ray decay from neutron-bound and unbound states in Mo 95 and a novel technique for spin determination

AU - Wiedeking, M.

AU - Krtička, M.

AU - Bernstein, L. A.

AU - Allmond, J. M.

AU - Basunia, M. S.

AU - Bleuel, D. L.

AU - Burke, J. T.

AU - Daub, B. H.

AU - Fallon, P.

AU - Firestone, R. B.

AU - Goldblum, B. L.

AU - Hatarik, R.

AU - Lake, P. T.

AU - Larsen, A. C.

AU - Lee, I. Y.

AU - Lesher, S. R.

AU - Paschalis, S.

AU - Petri, M.

AU - Phair, L.

AU - Scielzo, N. D.

AU - Volya, A.

N1 - ©2016 American Physical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

PY - 2016/2/1

Y1 - 2016/2/1

N2 - The emission of γ rays from neutron-bound and neutron-unbound states in Mo95, populated in the Mo94(d,p) reaction, has been investigated. Charged particles and γ radiation were detected with arrays of annular silicon and Clover-type high-purity Germanium detectors, respectively. Utilizing p-γ and p-γ-γ coincidences, the Mo95 level scheme was greatly enhanced with 102 new transitions and 43 new states. It agrees well with shell model calculations for excitation energies below ≈2 MeV. From p-γ coincidence data, a new method for the determination of spins of discrete levels is proposed. The method exploits the suppression of high-angular momentum neutron emission from levels with high spins populated in the (d,p) reaction above the neutron separation energy. Spins for almost all Mo95 levels below 2 MeV (and for a few levels above) have been determined with this method.

AB - The emission of γ rays from neutron-bound and neutron-unbound states in Mo95, populated in the Mo94(d,p) reaction, has been investigated. Charged particles and γ radiation were detected with arrays of annular silicon and Clover-type high-purity Germanium detectors, respectively. Utilizing p-γ and p-γ-γ coincidences, the Mo95 level scheme was greatly enhanced with 102 new transitions and 43 new states. It agrees well with shell model calculations for excitation energies below ≈2 MeV. From p-γ coincidence data, a new method for the determination of spins of discrete levels is proposed. The method exploits the suppression of high-angular momentum neutron emission from levels with high spins populated in the (d,p) reaction above the neutron separation energy. Spins for almost all Mo95 levels below 2 MeV (and for a few levels above) have been determined with this method.

UR - http://www.scopus.com/inward/record.url?scp=84959343201&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.93.024303

DO - 10.1103/PhysRevC.93.024303

M3 - Article

AN - SCOPUS:84959343201

SN - 0556-2813

VL - 93

SP - 1

EP - 11

JO - Physical Review C

JF - Physical Review C

IS - 2

M1 - 024303

ER -

γ-ray decay from neutron-bound and unbound states in Mo 95 and a novel technique for spin determination

Abstract

Bibliographical note

Access to Document

Other files and links

Cite this