Strong Evidence for N 9 and the Limits of Existence of Atomic Nuclei

R. J. Charity; J. Wylie; S. M. Wang; T. B. Webb; K. W. Brown; G. Cerizza; Z. Chajecki; J. M. Elson; J. Estee; D. E.M. Hoff; S. A. Kuvin; W. G. Lynch; J. Manfredi; N. Michel; D. G. Mcneel; P. Morfouace; W. Nazarewicz; C. D. Pruitt; C. Santamaria; S. Sweany; J. Smith; L. G. Sobotka; M. B. Tsang; A. H. Wuosmaa

doi:10.1103/PhysRevLett.131.172501

Strong Evidence for N 9 and the Limits of Existence of Atomic Nuclei

R. J. Charity, J. Wylie, S. M. Wang, T. B. Webb, K. W. Brown, G. Cerizza, Z. Chajecki, J. M. Elson, J. Estee, D. E.M. Hoff, S. A. Kuvin, W. G. Lynch, J. Manfredi, N. Michel, D. G. Mcneel, P. Morfouace, W. Nazarewicz, C. D. Pruitt, C. Santamaria, S. SweanyJ. Smith, L. G. Sobotka, M. B. Tsang, A. H. Wuosmaa

Department of Chemistry

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

10 Scopus citations

Abstract

The boundaries of the chart of nuclides contain exotic isotopes that possess extreme proton-to-neutron asymmetries. Here we report on strong evidence of N9, one of the most exotic proton-rich isotopes where more than one half of its constitute nucleons are unbound. With seven protons and two neutrons, this extremely proton-rich system would represent the first-known example of a ground-state five-proton emitter. The invariant-mass spectrum of its decay products can be fit with two peaks whose energies are consistent with the theoretical predictions of an open-quantum-system approach; however, we cannot rule out the possibility that only a single resonancelike peak is present in the spectrum.

Original language	English
Article number	172501
Journal	Physical Review Letters
Volume	131
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevLett.131.172501
State	Published - Oct 27 2023

Access to Document

10.1103/PhysRevLett.131.172501

Cite this

Charity, R. J., Wylie, J., Wang, S. M., Webb, T. B., Brown, K. W., Cerizza, G., Chajecki, Z., Elson, J. M., Estee, J., Hoff, D. E. M., Kuvin, S. A., Lynch, W. G., Manfredi, J., Michel, N., Mcneel, D. G., Morfouace, P., Nazarewicz, W., Pruitt, C. D., Santamaria, C., ... Wuosmaa, A. H. (2023). Strong Evidence for N 9 and the Limits of Existence of Atomic Nuclei. Physical Review Letters, 131(17), Article 172501. https://doi.org/10.1103/PhysRevLett.131.172501

@article{a886b8effa6849498ce57f64f191e617,

title = "Strong Evidence for N 9 and the Limits of Existence of Atomic Nuclei",

abstract = "The boundaries of the chart of nuclides contain exotic isotopes that possess extreme proton-to-neutron asymmetries. Here we report on strong evidence of N9, one of the most exotic proton-rich isotopes where more than one half of its constitute nucleons are unbound. With seven protons and two neutrons, this extremely proton-rich system would represent the first-known example of a ground-state five-proton emitter. The invariant-mass spectrum of its decay products can be fit with two peaks whose energies are consistent with the theoretical predictions of an open-quantum-system approach; however, we cannot rule out the possibility that only a single resonancelike peak is present in the spectrum.",

author = "Charity, {R. J.} and J. Wylie and Wang, {S. M.} and Webb, {T. B.} and Brown, {K. W.} and G. Cerizza and Z. Chajecki and Elson, {J. M.} and J. Estee and Hoff, {D. E.M.} and Kuvin, {S. A.} and Lynch, {W. G.} and J. Manfredi and N. Michel and Mcneel, {D. G.} and P. Morfouace and W. Nazarewicz and Pruitt, {C. D.} and C. Santamaria and S. Sweany and J. Smith and Sobotka, {L. G.} and Tsang, {M. B.} and Wuosmaa, {A. H.}",

note = "Publisher Copyright: {\textcopyright} 2023 American Physical Society.",

year = "2023",

month = oct,

day = "27",

doi = "10.1103/PhysRevLett.131.172501",

language = "English",

volume = "131",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "17",

}

Charity, RJ, Wylie, J, Wang, SM, Webb, TB, Brown, KW, Cerizza, G, Chajecki, Z, Elson, JM, Estee, J, Hoff, DEM, Kuvin, SA, Lynch, WG, Manfredi, J, Michel, N, Mcneel, DG, Morfouace, P, Nazarewicz, W, Pruitt, CD, Santamaria, C, Sweany, S, Smith, J, Sobotka, LG, Tsang, MB & Wuosmaa, AH 2023, 'Strong Evidence for N 9 and the Limits of Existence of Atomic Nuclei', Physical Review Letters, vol. 131, no. 17, 172501. https://doi.org/10.1103/PhysRevLett.131.172501

TY - JOUR

T1 - Strong Evidence for N 9 and the Limits of Existence of Atomic Nuclei

AU - Charity, R. J.

AU - Wylie, J.

AU - Wang, S. M.

AU - Webb, T. B.

AU - Brown, K. W.

AU - Cerizza, G.

AU - Chajecki, Z.

AU - Elson, J. M.

AU - Estee, J.

AU - Hoff, D. E.M.

AU - Kuvin, S. A.

AU - Lynch, W. G.

AU - Manfredi, J.

AU - Michel, N.

AU - Mcneel, D. G.

AU - Morfouace, P.

AU - Nazarewicz, W.

AU - Pruitt, C. D.

AU - Santamaria, C.

AU - Sweany, S.

AU - Smith, J.

AU - Sobotka, L. G.

AU - Tsang, M. B.

AU - Wuosmaa, A. H.

PY - 2023/10/27

Y1 - 2023/10/27

N2 - The boundaries of the chart of nuclides contain exotic isotopes that possess extreme proton-to-neutron asymmetries. Here we report on strong evidence of N9, one of the most exotic proton-rich isotopes where more than one half of its constitute nucleons are unbound. With seven protons and two neutrons, this extremely proton-rich system would represent the first-known example of a ground-state five-proton emitter. The invariant-mass spectrum of its decay products can be fit with two peaks whose energies are consistent with the theoretical predictions of an open-quantum-system approach; however, we cannot rule out the possibility that only a single resonancelike peak is present in the spectrum.

AB - The boundaries of the chart of nuclides contain exotic isotopes that possess extreme proton-to-neutron asymmetries. Here we report on strong evidence of N9, one of the most exotic proton-rich isotopes where more than one half of its constitute nucleons are unbound. With seven protons and two neutrons, this extremely proton-rich system would represent the first-known example of a ground-state five-proton emitter. The invariant-mass spectrum of its decay products can be fit with two peaks whose energies are consistent with the theoretical predictions of an open-quantum-system approach; however, we cannot rule out the possibility that only a single resonancelike peak is present in the spectrum.

UR - http://www.scopus.com/inward/record.url?scp=85175399478&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.131.172501

DO - 10.1103/PhysRevLett.131.172501

M3 - Article

C2 - 37955509

AN - SCOPUS:85175399478

SN - 0031-9007

VL - 131

JO - Physical Review Letters

JF - Physical Review Letters

IS - 17

M1 - 172501

ER -

Strong Evidence for N 9 and the Limits of Existence of Atomic Nuclei

Abstract

Access to Document

Other files and links

Fingerprint

Cite this