Radiative Capture on Nuclear Isomers: Direct Measurement of the 26⁢𝑚Al⁢(𝑝,𝛾)⁢27Si Reaction

G. Lotay; A Lennarz; C Ruiz; C. Akers; A. A. Chen; G. Christian; D.  Connolly; B. Davids; T. Davinson; J. Fallis; D. A. Hutcheon; P. Machule; L. Martin; D. J. Mountford; A. St. J. Murphy

doi:10.1103/PhysRevLett.128.042701

Radiative Capture on Nuclear Isomers: Direct Measurement of the 26⁢𝑚Al⁢(𝑝,𝛾)⁢27Si Reaction

G. Lotay
, A Lennarz
, C Ruiz
, C. Akers
, A. A. Chen
, G. Christian
, D. Connolly
, B. Davids
, T. Davinson
, J. Fallis
, D. A. Hutcheon
, P. Machule
, L. Martin
, D. J. Mountford
, A. St. J. Murphy

School of Physics and Astronomy

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

Abstract

We present the first direct measurement of an astrophysical reaction using a radioactive beam of isomeric nuclei. In particular, we have measured the strength of the key 447-keV resonance in the 26⁢𝑚Al⁢(𝑝,𝛾)⁢27Si reaction to be 432+146−226 meV
and find that this resonance dominates the thermally averaged reaction rate for temperatures between 0.3 and 2.5 GK. This work represents a critical development in resolving one of the longest standing issues in nuclear astrophysics research, relating to the measurement of proton capture reactions on excited quantum levels, and offers unique insight into the destruction of isomeric 26Al in astrophysical plasmas.

Original language	English
Article number	042701
Pages (from-to)	1-6
Number of pages	6
Journal	Physical Review Letters
Volume	128
Issue number	4
Early online date	27 Jan 2022
DOIs	https://doi.org/10.1103/PhysRevLett.128.042701
Publication status	Published - 28 Jan 2022

Access to Document

10.1103/PhysRevLett.128.042701

Cite this

Lotay, G., Lennarz, A., Ruiz, C., Akers, C., Chen, A. A., Christian, G., Connolly, D., Davids, B., Davinson, T., Fallis, J., Hutcheon, D. A., Machule, P., Martin, L., Mountford, D. J., & Murphy, A. S. J. (2022). Radiative Capture on Nuclear Isomers: Direct Measurement of the 26⁢𝑚Al⁢(𝑝,𝛾)⁢27Si Reaction. Physical Review Letters, 128(4), 1-6. Article 042701. https://doi.org/10.1103/PhysRevLett.128.042701

@article{7b97ee296479452993480b988c5ff580,

title = "Radiative Capture on Nuclear Isomers: Direct Measurement of the 26⁢𝑚Al⁢(𝑝,𝛾)⁢27Si Reaction",

abstract = "We present the first direct measurement of an astrophysical reaction using a radioactive beam of isomeric nuclei. In particular, we have measured the strength of the key 447-keV resonance in the 26⁢𝑚Al⁢(𝑝,𝛾)⁢27Si reaction to be 432+146−226 meV and find that this resonance dominates the thermally averaged reaction rate for temperatures between 0.3 and 2.5 GK. This work represents a critical development in resolving one of the longest standing issues in nuclear astrophysics research, relating to the measurement of proton capture reactions on excited quantum levels, and offers unique insight into the destruction of isomeric 26Al in astrophysical plasmas.",

author = "G. Lotay and A Lennarz and C Ruiz and C. Akers and Chen, \{A. A.\} and G. Christian and D. Connolly and B. Davids and T. Davinson and J. Fallis and Hutcheon, \{D. A.\} and P. Machule and L. Martin and Mountford, \{D. J.\} and Murphy, \{A. St. J.\}",

year = "2022",

month = jan,

day = "28",

doi = "10.1103/PhysRevLett.128.042701",

language = "English",

volume = "128",

pages = "1--6",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "4",

}

Lotay, G, Lennarz, A, Ruiz, C, Akers, C, Chen, AA, Christian, G, Connolly, D, Davids, B, Davinson, T, Fallis, J, Hutcheon, DA, Machule, P, Martin, L, Mountford, DJ & Murphy, ASJ 2022, 'Radiative Capture on Nuclear Isomers: Direct Measurement of the 26⁢𝑚Al⁢(𝑝,𝛾)⁢27Si Reaction', Physical Review Letters, vol. 128, no. 4, 042701, pp. 1-6. https://doi.org/10.1103/PhysRevLett.128.042701

TY - JOUR

T1 - Radiative Capture on Nuclear Isomers: Direct Measurement of the 26⁢𝑚Al⁢(𝑝,𝛾)⁢27Si Reaction

AU - Lotay, G.

AU - Lennarz, A

AU - Ruiz, C

AU - Akers, C.

AU - Chen, A. A.

AU - Christian, G.

AU - Connolly, D.

AU - Davids, B.

AU - Davinson, T.

AU - Fallis, J.

AU - Hutcheon, D. A.

AU - Machule, P.

AU - Martin, L.

AU - Mountford, D. J.

AU - Murphy, A. St. J.

PY - 2022/1/28

Y1 - 2022/1/28

N2 - We present the first direct measurement of an astrophysical reaction using a radioactive beam of isomeric nuclei. In particular, we have measured the strength of the key 447-keV resonance in the 26⁢𝑚Al⁢(𝑝,𝛾)⁢27Si reaction to be 432+146−226 meV and find that this resonance dominates the thermally averaged reaction rate for temperatures between 0.3 and 2.5 GK. This work represents a critical development in resolving one of the longest standing issues in nuclear astrophysics research, relating to the measurement of proton capture reactions on excited quantum levels, and offers unique insight into the destruction of isomeric 26Al in astrophysical plasmas.

AB - We present the first direct measurement of an astrophysical reaction using a radioactive beam of isomeric nuclei. In particular, we have measured the strength of the key 447-keV resonance in the 26⁢𝑚Al⁢(𝑝,𝛾)⁢27Si reaction to be 432+146−226 meV and find that this resonance dominates the thermally averaged reaction rate for temperatures between 0.3 and 2.5 GK. This work represents a critical development in resolving one of the longest standing issues in nuclear astrophysics research, relating to the measurement of proton capture reactions on excited quantum levels, and offers unique insight into the destruction of isomeric 26Al in astrophysical plasmas.

U2 - 10.1103/PhysRevLett.128.042701

DO - 10.1103/PhysRevLett.128.042701

M3 - Article

SN - 0031-9007

VL - 128

SP - 1

EP - 6

JO - Physical Review Letters

JF - Physical Review Letters

IS - 4

M1 - 042701

ER -

Radiative Capture on Nuclear Isomers: Direct Measurement of the 26⁢𝑚Al⁢(𝑝,𝛾)⁢27Si Reaction

Abstract

Access to Document

Fingerprint

Cite this