Hindered gamow-teller decay to the odd-odd N=Z Ga 62: Absence of proton-neutron T=0 condensate in A=62

E. Grodner, A. Gadea, P. Sarriguren, S. M. Lenzi, J. Grȩbosz, J. J. Valiente-Dobón, A. Algora, M. Górska, P. H. Regan, D. Rudolph, G. De Angelis, J. Agramunt, N. Alkhomashi, L. Amon Susam, D. Bazzacco, J. Benlliure, G. Benzoni, P. Boutachkov, A. Bracco, L. CaceresR. B. Cakirli, F. C L Crespi, C. Domingo-Pardo, M. Doncel, Zs. S. Dombrádi, P. Doornenbal, E. Farnea, E. Ganioǧlu, W. Gelletly, J. Gerl, A. Gottardo, T. Hüyük, N. Kurz, S. Leoni, D. Mengoni, F. Molina, A. I. Morales, R. Orlandi, Y. Oktem, R. D. Page, D. Perez, S. Pietri, Zs Podolyák, A. Poves, B. Quintana, S. Rinta-Antila, B. Rubio, B. S. Nara Singh, A. N. Steer, S. Verma, R. Wadsworth, O. Wieland, H. J. Wollersheim

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Search for a new kind of superfluidity built on collective proton-neutron pairs with aligned spin is performed studying the Gamow-Teller decay of the T=1, Jπ=0+ ground state of Ge62 into excited states of the odd-odd N=Z nucleus Ga62. The experiment is performed at GSI Helmholtzzentrum für Shwerionenforshung with the Ge62 ions selected by the fragment separator and implanted in a stack of Si-strip detectors, surrounded by the RISING Ge array. A half-life of T1/2=82.9(14)ms is measured for the Ge62 ground state. Six excited states of Ga62, populated below 2.5 MeV through Gamow-Teller transitions, are identified. Individual Gamow-Teller transition strengths agree well with theoretical predictions of the interacting shell model and the quasiparticle random phase approximation. The absence of any sizable low-lying Gamow-Teller strength in the reported beta-decay experiment supports the hypothesis of a negligible role of coherent T=0 proton-neutron correlations in Ga62.

Original languageEnglish
Article number092501
JournalPhysical Review Letters
Volume113
Issue number9
DOIs
Publication statusPublished - Aug 28 2014

Fingerprint

condensates
neutrons
ground state
protons
superfluidity
decay
separators
half life
excitation
strip
fragments
nuclei
detectors
predictions
approximation
ions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Grodner, E., Gadea, A., Sarriguren, P., Lenzi, S. M., Grȩbosz, J., Valiente-Dobón, J. J., ... Wollersheim, H. J. (2014). Hindered gamow-teller decay to the odd-odd N=Z Ga 62: Absence of proton-neutron T=0 condensate in A=62. Physical Review Letters, 113(9), [092501]. https://doi.org/10.1103/PhysRevLett.113.092501

Hindered gamow-teller decay to the odd-odd N=Z Ga 62 : Absence of proton-neutron T=0 condensate in A=62. / Grodner, E.; Gadea, A.; Sarriguren, P.; Lenzi, S. M.; Grȩbosz, J.; Valiente-Dobón, J. J.; Algora, A.; Górska, M.; Regan, P. H.; Rudolph, D.; De Angelis, G.; Agramunt, J.; Alkhomashi, N.; Amon Susam, L.; Bazzacco, D.; Benlliure, J.; Benzoni, G.; Boutachkov, P.; Bracco, A.; Caceres, L.; Cakirli, R. B.; Crespi, F. C L; Domingo-Pardo, C.; Doncel, M.; Dombrádi, Zs. S.; Doornenbal, P.; Farnea, E.; Ganioǧlu, E.; Gelletly, W.; Gerl, J.; Gottardo, A.; Hüyük, T.; Kurz, N.; Leoni, S.; Mengoni, D.; Molina, F.; Morales, A. I.; Orlandi, R.; Oktem, Y.; Page, R. D.; Perez, D.; Pietri, S.; Podolyák, Zs; Poves, A.; Quintana, B.; Rinta-Antila, S.; Rubio, B.; Nara Singh, B. S.; Steer, A. N.; Verma, S.; Wadsworth, R.; Wieland, O.; Wollersheim, H. J.

In: Physical Review Letters, Vol. 113, No. 9, 092501, 28.08.2014.

Research output: Contribution to journalArticle

Grodner, E, Gadea, A, Sarriguren, P, Lenzi, SM, Grȩbosz, J, Valiente-Dobón, JJ, Algora, A, Górska, M, Regan, PH, Rudolph, D, De Angelis, G, Agramunt, J, Alkhomashi, N, Amon Susam, L, Bazzacco, D, Benlliure, J, Benzoni, G, Boutachkov, P, Bracco, A, Caceres, L, Cakirli, RB, Crespi, FCL, Domingo-Pardo, C, Doncel, M, Dombrádi, ZS, Doornenbal, P, Farnea, E, Ganioǧlu, E, Gelletly, W, Gerl, J, Gottardo, A, Hüyük, T, Kurz, N, Leoni, S, Mengoni, D, Molina, F, Morales, AI, Orlandi, R, Oktem, Y, Page, RD, Perez, D, Pietri, S, Podolyák, Z, Poves, A, Quintana, B, Rinta-Antila, S, Rubio, B, Nara Singh, BS, Steer, AN, Verma, S, Wadsworth, R, Wieland, O & Wollersheim, HJ 2014, 'Hindered gamow-teller decay to the odd-odd N=Z Ga 62: Absence of proton-neutron T=0 condensate in A=62', Physical Review Letters, vol. 113, no. 9, 092501. https://doi.org/10.1103/PhysRevLett.113.092501
Grodner E, Gadea A, Sarriguren P, Lenzi SM, Grȩbosz J, Valiente-Dobón JJ et al. Hindered gamow-teller decay to the odd-odd N=Z Ga 62: Absence of proton-neutron T=0 condensate in A=62. Physical Review Letters. 2014 Aug 28;113(9). 092501. https://doi.org/10.1103/PhysRevLett.113.092501
Grodner, E. ; Gadea, A. ; Sarriguren, P. ; Lenzi, S. M. ; Grȩbosz, J. ; Valiente-Dobón, J. J. ; Algora, A. ; Górska, M. ; Regan, P. H. ; Rudolph, D. ; De Angelis, G. ; Agramunt, J. ; Alkhomashi, N. ; Amon Susam, L. ; Bazzacco, D. ; Benlliure, J. ; Benzoni, G. ; Boutachkov, P. ; Bracco, A. ; Caceres, L. ; Cakirli, R. B. ; Crespi, F. C L ; Domingo-Pardo, C. ; Doncel, M. ; Dombrádi, Zs. S. ; Doornenbal, P. ; Farnea, E. ; Ganioǧlu, E. ; Gelletly, W. ; Gerl, J. ; Gottardo, A. ; Hüyük, T. ; Kurz, N. ; Leoni, S. ; Mengoni, D. ; Molina, F. ; Morales, A. I. ; Orlandi, R. ; Oktem, Y. ; Page, R. D. ; Perez, D. ; Pietri, S. ; Podolyák, Zs ; Poves, A. ; Quintana, B. ; Rinta-Antila, S. ; Rubio, B. ; Nara Singh, B. S. ; Steer, A. N. ; Verma, S. ; Wadsworth, R. ; Wieland, O. ; Wollersheim, H. J. / Hindered gamow-teller decay to the odd-odd N=Z Ga 62 : Absence of proton-neutron T=0 condensate in A=62. In: Physical Review Letters. 2014 ; Vol. 113, No. 9.
@article{53eb16b7d747468f96a7ddfddd0cc285,
title = "Hindered gamow-teller decay to the odd-odd N=Z Ga 62: Absence of proton-neutron T=0 condensate in A=62",
abstract = "Search for a new kind of superfluidity built on collective proton-neutron pairs with aligned spin is performed studying the Gamow-Teller decay of the T=1, Jπ=0+ ground state of Ge62 into excited states of the odd-odd N=Z nucleus Ga62. The experiment is performed at GSI Helmholtzzentrum f{\"u}r Shwerionenforshung with the Ge62 ions selected by the fragment separator and implanted in a stack of Si-strip detectors, surrounded by the RISING Ge array. A half-life of T1/2=82.9(14)ms is measured for the Ge62 ground state. Six excited states of Ga62, populated below 2.5 MeV through Gamow-Teller transitions, are identified. Individual Gamow-Teller transition strengths agree well with theoretical predictions of the interacting shell model and the quasiparticle random phase approximation. The absence of any sizable low-lying Gamow-Teller strength in the reported beta-decay experiment supports the hypothesis of a negligible role of coherent T=0 proton-neutron correlations in Ga62.",
author = "E. Grodner and A. Gadea and P. Sarriguren and Lenzi, {S. M.} and J. Grȩbosz and Valiente-Dob{\'o}n, {J. J.} and A. Algora and M. G{\'o}rska and Regan, {P. H.} and D. Rudolph and {De Angelis}, G. and J. Agramunt and N. Alkhomashi and {Amon Susam}, L. and D. Bazzacco and J. Benlliure and G. Benzoni and P. Boutachkov and A. Bracco and L. Caceres and Cakirli, {R. B.} and Crespi, {F. C L} and C. Domingo-Pardo and M. Doncel and Dombr{\'a}di, {Zs. S.} and P. Doornenbal and E. Farnea and E. Ganioǧlu and W. Gelletly and J. Gerl and A. Gottardo and T. H{\"u}y{\"u}k and N. Kurz and S. Leoni and D. Mengoni and F. Molina and Morales, {A. I.} and R. Orlandi and Y. Oktem and Page, {R. D.} and D. Perez and S. Pietri and Zs Podoly{\'a}k and A. Poves and B. Quintana and S. Rinta-Antila and B. Rubio and {Nara Singh}, {B. S.} and Steer, {A. N.} and S. Verma and R. Wadsworth and O. Wieland and Wollersheim, {H. J.}",
year = "2014",
month = "8",
day = "28",
doi = "10.1103/PhysRevLett.113.092501",
language = "English",
volume = "113",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "9",

}

TY - JOUR

T1 - Hindered gamow-teller decay to the odd-odd N=Z Ga 62

T2 - Absence of proton-neutron T=0 condensate in A=62

AU - Grodner, E.

AU - Gadea, A.

AU - Sarriguren, P.

AU - Lenzi, S. M.

AU - Grȩbosz, J.

AU - Valiente-Dobón, J. J.

AU - Algora, A.

AU - Górska, M.

AU - Regan, P. H.

AU - Rudolph, D.

AU - De Angelis, G.

AU - Agramunt, J.

AU - Alkhomashi, N.

AU - Amon Susam, L.

AU - Bazzacco, D.

AU - Benlliure, J.

AU - Benzoni, G.

AU - Boutachkov, P.

AU - Bracco, A.

AU - Caceres, L.

AU - Cakirli, R. B.

AU - Crespi, F. C L

AU - Domingo-Pardo, C.

AU - Doncel, M.

AU - Dombrádi, Zs. S.

AU - Doornenbal, P.

AU - Farnea, E.

AU - Ganioǧlu, E.

AU - Gelletly, W.

AU - Gerl, J.

AU - Gottardo, A.

AU - Hüyük, T.

AU - Kurz, N.

AU - Leoni, S.

AU - Mengoni, D.

AU - Molina, F.

AU - Morales, A. I.

AU - Orlandi, R.

AU - Oktem, Y.

AU - Page, R. D.

AU - Perez, D.

AU - Pietri, S.

AU - Podolyák, Zs

AU - Poves, A.

AU - Quintana, B.

AU - Rinta-Antila, S.

AU - Rubio, B.

AU - Nara Singh, B. S.

AU - Steer, A. N.

AU - Verma, S.

AU - Wadsworth, R.

AU - Wieland, O.

AU - Wollersheim, H. J.

PY - 2014/8/28

Y1 - 2014/8/28

N2 - Search for a new kind of superfluidity built on collective proton-neutron pairs with aligned spin is performed studying the Gamow-Teller decay of the T=1, Jπ=0+ ground state of Ge62 into excited states of the odd-odd N=Z nucleus Ga62. The experiment is performed at GSI Helmholtzzentrum für Shwerionenforshung with the Ge62 ions selected by the fragment separator and implanted in a stack of Si-strip detectors, surrounded by the RISING Ge array. A half-life of T1/2=82.9(14)ms is measured for the Ge62 ground state. Six excited states of Ga62, populated below 2.5 MeV through Gamow-Teller transitions, are identified. Individual Gamow-Teller transition strengths agree well with theoretical predictions of the interacting shell model and the quasiparticle random phase approximation. The absence of any sizable low-lying Gamow-Teller strength in the reported beta-decay experiment supports the hypothesis of a negligible role of coherent T=0 proton-neutron correlations in Ga62.

AB - Search for a new kind of superfluidity built on collective proton-neutron pairs with aligned spin is performed studying the Gamow-Teller decay of the T=1, Jπ=0+ ground state of Ge62 into excited states of the odd-odd N=Z nucleus Ga62. The experiment is performed at GSI Helmholtzzentrum für Shwerionenforshung with the Ge62 ions selected by the fragment separator and implanted in a stack of Si-strip detectors, surrounded by the RISING Ge array. A half-life of T1/2=82.9(14)ms is measured for the Ge62 ground state. Six excited states of Ga62, populated below 2.5 MeV through Gamow-Teller transitions, are identified. Individual Gamow-Teller transition strengths agree well with theoretical predictions of the interacting shell model and the quasiparticle random phase approximation. The absence of any sizable low-lying Gamow-Teller strength in the reported beta-decay experiment supports the hypothesis of a negligible role of coherent T=0 proton-neutron correlations in Ga62.

UR - http://www.scopus.com/inward/record.url?scp=84907303935&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84907303935&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.113.092501

DO - 10.1103/PhysRevLett.113.092501

M3 - Article

AN - SCOPUS:84907303935

VL - 113

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 9

M1 - 092501

ER -