Stretched configuration of states as inferred from γ-ray angular distributions in 40Ar + 208Pb neutron transfer reactions

P.  Čolović; S. Szilner; L. Corradi; T. Mijatovi; G. Pollarolo; A. Goasduff; D. Montanari; R. Chapman; E. Fioretto; A. Gadea; F. Haas; D. Jelavi Malenica; N. Marginean; D. Mengoni; M. Milin; G. Montagnoli; F. Scarlassara; J. F. Smith; N.  Soić; A. M. Stefanini; C. A. Ur; J. J. Valiente-Dobón

doi:10.1140/epja/i2017-12358-6

Stretched configuration of states as inferred from γ-ray angular distributions in 40Ar + 208Pb neutron transfer reactions

P. Čolović, S. Szilner, L. Corradi, T. Mijatovi, G. Pollarolo, A. Goasduff, D. Montanari, R. Chapman, E. Fioretto, A. Gadea, F. Haas, D. Jelavi Malenica, N. Marginean, D. Mengoni, M. Milin, G. Montagnoli, F. Scarlassara, J. F. Smith, N. Soić, A. M. StefaniniC. A. Ur, J. J. Valiente-Dobón

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Abstract

Angular distributions of γ-rays for selected transitions in ^{40, 41, 42}Ar isotopes have been studied with the PRISMA magnetic spectrometer coupled to the CLARA γγ array. These transitions were populated in Ar isotopes reached via neutron transfer in the ⁴⁰Ar + ²⁰⁸Pb reaction. By comparison with the shape of the experimental angular distribution of the known E2 transitions we established more firmly the spin and parity of excited states. In particular, in ⁴¹Ar for the (11/2−)(11/2−) state through the (11/2−)→7/2−(11/2−)→7/2− transition whose structure was discussed in terms of a phonon-fermion coupled state. The comparison with the expected fully aligned spin indicated that a high level of spin alignment has been reached.

Original language	English
Article number	166
Number of pages	6
Journal	The European Physical Journal A
Volume	53
Issue number	8
Early online date	24 Aug 2017
DOIs	https://doi.org/10.1140/epja/i2017-12358-6
Publication status	E-pub ahead of print - 24 Aug 2017

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Čolović, P., Szilner, S., Corradi, L., Mijatovi, T., Pollarolo, G., Goasduff, A., Montanari, D., Chapman, R., Fioretto, E., Gadea, A., Haas, F., Jelavi Malenica, D., Marginean, N., Mengoni, D., Milin, M., Montagnoli, G., Scarlassara, F., Smith, J. F., Soić, N., ... Valiente-Dobón, J. J. (2017). Stretched configuration of states as inferred from γ-ray angular distributions in 40Ar + 208Pb neutron transfer reactions. The European Physical Journal A, 53(8), Article 166. Advance online publication. https://doi.org/10.1140/epja/i2017-12358-6

@article{bc6a54a84fa546169dc09614ab4f41ec,

title = "Stretched configuration of states as inferred from γ-ray angular distributions in 40Ar + 208Pb neutron transfer reactions",

abstract = "Angular distributions of γ-rays for selected transitions in 40, 41, 42Ar isotopes have been studied with the PRISMA magnetic spectrometer coupled to the CLARA γγ array. These transitions were populated in Ar isotopes reached via neutron transfer in the 40Ar + 208Pb reaction. By comparison with the shape of the experimental angular distribution of the known E2 transitions we established more firmly the spin and parity of excited states. In particular, in 41Ar for the (11/2−)(11/2−) state through the (11/2−)→7/2−(11/2−)→7/2− transition whose structure was discussed in terms of a phonon-fermion coupled state. The comparison with the expected fully aligned spin indicated that a high level of spin alignment has been reached.",

author = "P. {\v C}olovi{\'c} and S. Szilner and L. Corradi and T. Mijatovi and G. Pollarolo and A. Goasduff and D. Montanari and R. Chapman and E. Fioretto and A. Gadea and F. Haas and {Jelavi Malenica}, D. and N. Marginean and D. Mengoni and M. Milin and G. Montagnoli and F. Scarlassara and Smith, {J. F.} and N. Soi{\'c} and Stefanini, {A. M.} and Ur, {C. A.} and Valiente-Dob{\'o}n, {J. J.}",

note = "12 months embargo",

year = "2017",

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doi = "10.1140/epja/i2017-12358-6",

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Čolović, P, Szilner, S, Corradi, L, Mijatovi, T, Pollarolo, G, Goasduff, A, Montanari, D, Chapman, R, Fioretto, E, Gadea, A, Haas, F, Jelavi Malenica, D, Marginean, N, Mengoni, D, Milin, M, Montagnoli, G, Scarlassara, F, Smith, JF, Soić, N, Stefanini, AM, Ur, CA & Valiente-Dobón, JJ 2017, 'Stretched configuration of states as inferred from γ-ray angular distributions in 40Ar + 208Pb neutron transfer reactions', The European Physical Journal A, vol. 53, no. 8, 166. https://doi.org/10.1140/epja/i2017-12358-6

TY - JOUR

T1 - Stretched configuration of states as inferred from γ-ray angular distributions in 40Ar + 208Pb neutron transfer reactions

AU - Čolović, P.

AU - Szilner, S.

AU - Corradi, L.

AU - Mijatovi, T.

AU - Pollarolo, G.

AU - Goasduff, A.

AU - Montanari, D.

AU - Chapman, R.

AU - Fioretto, E.

AU - Gadea, A.

AU - Haas, F.

AU - Jelavi Malenica, D.

AU - Marginean, N.

AU - Mengoni, D.

AU - Milin, M.

AU - Montagnoli, G.

AU - Scarlassara, F.

AU - Smith, J. F.

AU - Soić, N.

AU - Stefanini, A. M.

AU - Ur, C. A.

AU - Valiente-Dobón, J. J.

N1 - 12 months embargo

PY - 2017/8/24

Y1 - 2017/8/24

N2 - Angular distributions of γ-rays for selected transitions in 40, 41, 42Ar isotopes have been studied with the PRISMA magnetic spectrometer coupled to the CLARA γγ array. These transitions were populated in Ar isotopes reached via neutron transfer in the 40Ar + 208Pb reaction. By comparison with the shape of the experimental angular distribution of the known E2 transitions we established more firmly the spin and parity of excited states. In particular, in 41Ar for the (11/2−)(11/2−) state through the (11/2−)→7/2−(11/2−)→7/2− transition whose structure was discussed in terms of a phonon-fermion coupled state. The comparison with the expected fully aligned spin indicated that a high level of spin alignment has been reached.

AB - Angular distributions of γ-rays for selected transitions in 40, 41, 42Ar isotopes have been studied with the PRISMA magnetic spectrometer coupled to the CLARA γγ array. These transitions were populated in Ar isotopes reached via neutron transfer in the 40Ar + 208Pb reaction. By comparison with the shape of the experimental angular distribution of the known E2 transitions we established more firmly the spin and parity of excited states. In particular, in 41Ar for the (11/2−)(11/2−) state through the (11/2−)→7/2−(11/2−)→7/2− transition whose structure was discussed in terms of a phonon-fermion coupled state. The comparison with the expected fully aligned spin indicated that a high level of spin alignment has been reached.

U2 - 10.1140/epja/i2017-12358-6

DO - 10.1140/epja/i2017-12358-6

M3 - Article

SN - 1434-601X

VL - 53

JO - The European Physical Journal A

JF - The European Physical Journal A

IS - 8

M1 - 166

ER -

Stretched configuration of states as inferred from γ-ray angular distributions in 40Ar + 208Pb neutron transfer reactions

Abstract

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