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NSR database version of April 26, 2024.

Search: Author = A.Steer

Found 15 matches.

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2014GR10      Phys.Rev.Lett. 113, 092501 (2014)

E.Grodner, A.Gadea, P.Sarriguren, S.M.Lenzi, J.Grebosz, J.J.Valiente-Dobon, A.Algora, M.Gorska, 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.Caceres, R.B.Cakirli, F.C.L.Crespi, C.Domingo-Pardo, M.Doncel, Zs.Dombradi, P.Doornenbal, E.Farnea, E.Ganioglu, W.Gelletly, J.Gerl, A.Gottardo, T.Huyuk, N.Kurz, S.Leoni, D.Mengoni, F.Molina, A.I.Morales, R.Orlandi, Y.Oktem, R.D.Page, D.Perez, S.Pietri, Zs.Podolyak, 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

Hindered Gamow-Teller Decay to the Odd-Odd N=Z ⁶²Ga: Absence of Proton-Neutron T=0 Condensate in A=62

RADIOACTIVITY ⁶²Ge(EC) [from ⁹Be(⁷⁸Kr, X), E=750 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced T_1/2, energy levels, J, π, Gamow-Teller strength B(GT). Comparison with ISM using KB3G interaction and QRPA approaches.

doi: 10.1103/PhysRevLett.113.092501
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2013UU01      Phys.Rev. C 87, 064304 (2013)

J.Uusitalo, J.Saren, S.Juutinen, M.Leino, S.Eeckhaudt, T.Grahn, P.T.Greenlees, U.Jakobsson, P.Jones, R.Julin, S.Ketelhut, A.-P.Leppanen, M.Nyman, J.Pakarinen, P.Rahkila, C.Scholey, A.Semchenkov, J.Sorri, A.Steer, M.Venhart

α-decay studies of the francium isotopes ¹⁹⁸Fr and ¹⁹⁹Fr

RADIOACTIVITY ^198,199Fr(α)[from ¹⁴¹Pr(⁶⁰Ni, xn), E=268 MeV]; measured Eα, Iα, Eγ, time-of-flight, recoil energy deposit, half-lives using RITU separator and GREAT spectrometer at JYFL facility. ^198,199Fr; deduced levels, J, π, isomers, reduced α widths, speculative decay schemes. ^190,191Bi, ^194,195,196At, ²⁰⁰Fr(α); measured Eα, half-lives of ground states and isomers; deduced reduced α widths, speculative decay schemes. Comparison with calculated half-lives. ^186,187Tl, ^190,191Bi, ^194,195At, ^198,199Fr; deduced possible levels, isomers, J, π. ^198,199Rn, ¹⁹²Bi(α); observed α spectra. ^190,191Bi(β⁺), (EC); deduced EC+β⁺ branching ratio. Systematics of Eα for α transitions in A=190-212 At and Fr isotopes. Evidence of ground state deformation at N=112 in Fr isotopes.

NUCLEAR REACTIONS ¹⁴¹Pr(⁶⁰Ni, X)¹⁹⁸Rn/¹⁹⁹Rn/¹⁹⁸Fr/¹⁹⁹Fr, E=268 MeV; measured production σ using RITU separator at JYFL facility.

doi: 10.1103/PhysRevC.87.064304
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2011DA01      Phys.Lett. B 695, 78 (2011)

I.G.Darby, R.D.Page, D.T.Joss, J.Simpson, L.Bianco, R.J.Cooper, S.Eeckhaudt, S.Erturk, B.Gall, T.Grahn, P.T.Greenlees, B.Hadinia, P.M.Jones, D.S.Judson, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, A.-P.Leppanen, M.Nyman, P.Rahkila, J.Saren, C.Scholey, A.N.Steer, J.Uusitalo, M.Venhart

Decay of the high-spin isomer in ¹⁶⁰Re: Changing single-particle structure beyond the proton drip line

RADIOACTIVITY ¹⁶⁰Re(IT) [from ¹⁰⁶Cd(⁵⁸Ni, X), E=290, 300 MeV]; measured Eγ, Iγ, γγ and αγ-coin.; deduced a new high-spin isomeric state, T_1/2. Comparison with shell model calculations.

doi: 10.1016/j.physletb.2010.10.052
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2011DA12      Phys.Rev. C 83, 064320 (2011)

I.G.Darby, R.D.Page, D.T.Joss, L.Bianco, T.Grahn, D.S.Judson, J.Simpson, S.Eeckhaudt, P.T.Greenlees, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, A.-P.Leppanen, M.Nyman, P.Rahkila, J.Saren, C.Scholey, A.N.Steer, J.Uusitalo, M.Venhart, S.Erturk, B.Gall, B.Hadinia

Precision measurements of proton emission from the ground states of ¹⁵⁶Ta and ¹⁶⁰Re

RADIOACTIVITY ¹⁶⁰Re(p), (α)[from ¹⁰⁶Cd(⁵⁸Ni, X), E=290, 300 MeV]; ¹⁵⁶Ta(p), (β⁺)[from ¹⁶⁰Re α decay]; ¹⁵⁹W(α)[from ¹⁶⁰Re p decay]; ¹⁵⁶Hf(α)[from ¹⁵⁶Ta β⁺ decay]; measured E(p), I(p), Eα, Iα, Eγ, half-lives using GREAT spectrometer; deduced branching ratios for proton, α and β decay modes, spectroscopic factors. ¹⁵⁶Ta, ¹⁶⁰Re; deduced J, π for ground states.

doi: 10.1103/PhysRevC.83.064320
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2010BI03      Phys.Lett. B 690, 15 (2010)

L.Bianco, R.D.Page, I.G.Darby, D.T.Joss, J.Simpson, J.S.Al-Khalili, A.J.Cannon, B.Cederwall, S.Eeckhaudt, S.Erturk, B.Gall, M.B.Gomez Hornillos, T.Grahn, P.T.Greenlees, B.Hadinia, K.Heyde, U.Jakobsson, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Labiche, M.Leino, A.-P.Leppanen, M.Nyman, D.O'Donnell, E.S.Paul, M.Petri, P.Peura, A.Puurunen, P.Rahkila, P.Ruotsalainen, M.Sandzelius, P.J.Sapple, J.Saren, C.Scholey, N.A.Smirnova, A.N.Steer, P.D.Stevenson, E.B.Suckling, J.Thomson, J.Uusitalo, M.Venhart

Discovery of ¹⁵⁷W and ¹⁶¹Os

NUCLEAR REACTIONS ¹⁰⁶Cd(⁵⁸Ni, 3n), E=290, 310 MeV; measured reaction products; deduced α spectra, α-branching, T_1/2, fine structure, ground state J, π.

RADIOACTIVITY ¹⁶¹Os(α), ¹⁵⁷W(β⁺); measured decay products; deduced T_1/2, β-branching. Comparison with shell model calculations.

doi: 10.1016/j.physletb.2010.04.056
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2009KE02      Phys.Rev.Lett. 102, 212501 (2009)

S.Ketelhut, P.T.Greenlees, D.Ackermann, S.Antalic, E.Clement, I.G.Darby, O.Dorvaux, A.Drouart, S.Eeckhaudt, B.J.P.Gall, A.Gorgen, T.Grahn, C.Gray-Jones, K.Hauschild, R.-D.Herzberg, F.P.Hessberger, U.Jakobsson, G.D.Jones, P.Jones, R.Julin, S.Juutinen, T.-L.Khoo, W.Korten, M.Leino, A.-P.Leppanen, J.Ljungvall, S.Moon, M.Nyman, A.Obertelli, J.Pakarinen, E.Parr, P.Papadakis, P.Peura, J.Piot, A.Pritchard, P.Rahkila, D.Rostron, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, A.Steer, B.Sulignano, Ch.Theisen, J.Uusitalo, M.Venhart, M.Zielinska, M.Bender, P.-H.Heenen

γ-Ray Spectroscopy at the Limits: First Observation of Rotational Bands in ²⁵⁵Lr

NUCLEAR REACTIONS ²⁰⁹Bi(⁴⁸Ca, 2n), E=219, 221 MeV; Measured Eγ, Iγ, αγ-coin; Deduced rotational bands; Calculated rotational bands;²⁵¹Md;²⁵⁵Lr; Compared theoretical and experimental results.

doi: 10.1103/PhysRevLett.102.212501
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2009WA09      Acta Phys.Pol. B40, 611 (2009)

R.Wadsworth, B.S.Nara Singh, A.N.Steer, D.G.Jenkins, M.A.Bentley, T.Brock, P.Davies, R.Glover, N.S.Pattabiraman, C.Scholey, T.Grahn, P.T.Greenlees, P.Jones, U.Jakobsson, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, M.Nyman, P.Perua, J.Pakarinen, P.Rahkila, P.Ruotsalainen, J.Sorri, J.Uusitalo, C.J.Lister, P.A.Butler, M.Dimmock, D.T.Joss, J.Thomson, S.Rinta-Antila, B.Cederwall, B.Hadinia, M.Sandzelius, A.Atac, L.Betterman, A.Blazhev, N.Braun, F.Finke, K.Geibel, G.Ilie, H.Iwasaki, J.Jolie, P.Reiter, C.Scholl, N.Warr, P.Boutachkov, L.Caceres, C.Domingo, T.Engert, F.Farinon, J.Gerl, N.Goel, M.Gorska, H.Grawe, N.Kurz, I.Kojuharov, S.Pietri, C.Nociforo, A.Prochazka, H.-J.Wollersheim, K.Eppinger, T.Faestermann, C.Hinke, R.Hoischen, R.Kruecken, A.Gottardo, Z.Liu, P.Woods, J.Grebosz, E.Merchant, J.Nyberg, P.-A.Soderstrom, Z.Podolyak, P.Regan, S.Steer, M.Pfutzner, D.Rudolph

The Northwest Frontier: Spectroscopy of N ∼ Z Nuclei Below Mass 100

2007HU03      Phys.Rev.Lett. 98, 072501 (2007)

A.M.Hurst, P.A.Butler, D.G.Jenkins, P.Delahaye, F.Wenander, F.Ames, C.J.Barton, T.Behrens, A.Burger, J.Cederkall, E.Clement, T.Czosnyka, T.Davinson, G.de Angelis, J.Eberth, A.Ekstrom, S.Franchoo, G.Georgiev, A.Gorgen, R.-D.Herzberg, M.Huyse, O.Ivanov, J.Iwanicki, G.D.Jones, P.Kent, U.Koster, T.Kroll, R.Krucken, A.C.Larsen, M.Nespolo, M.Pantea, E.S.Paul, M.Petri, H.Scheit, T.Sieber, S.Siem, J.F.Smith, A.Steer, I.Stefanescu, N.U.H.Syed, J.Van de Walle, P.Van Duppen, R.Wadsworth, N.Warr, D.Weisshaar, M.Zielinska

Measurement of the Sign of the Spectroscopic Quadrupole Moment for the 2⁺₁ State in ⁷⁰Se: No Evidence for Oblate Shape

NUCLEAR REACTIONS ¹⁰⁴Pd(⁷⁰Se, ⁷⁰Se'), E=206 MeV; measured Eγ, Iγ, (particle)γ-coin following projectile Coulomb excitation. ⁷⁰Se deduced prolate deformation.

doi: 10.1103/PhysRevLett.98.072501
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2007NA13      Phys.Rev. C 75, 061301 (2007)

B.S.Nara Singh, A.N.Steer, D.G.Jenkins, R.Wadsworth, M.A.Bentley, P.J.Davies, R.Glover, N.S.Pattabiraman, C.J.Lister, T.Grahn, P.T.Greenlees, P.Jones, R.Julin, S.Juutinen, M.Leino, M.Nyman, J.Pakarinen, P.Rahkila, J.Saren, C.Scholey, J.Sorri, J.Uusitalo, P.A.Butler, M.Dimmock, D.T.Joss, J.Thomson, B.Cederwall, B.Hadinia, M.Sandzelius

Coulomb shifts and shape changes in the mass 70 region

NUCLEAR REACTIONS Ca(³⁶Ar, np)⁷⁴Rb, E=103 MeV; Ca(⁴⁰Ca, np)⁷⁸Y, E=118, 121 MeV; measured Eγ, Iγ, βγ-coinc using recoil-decay tagging technique. ⁷⁴Rb, ⁷⁸Y deduced coulomb energy differences between T=1 states.

doi: 10.1103/PhysRevC.75.061301
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2007NA37      Eur.Phys.J. Special Topics 150, 147 (2007)

B.S.Nara Singh, A.N.Steer, D.G.Jenkins, R.Wadsworth, P.J.Davies, R.Glover, N.S.Pattabiraman, T.Grahn, P.T.Greenlees, P.Jones, R.Julin, M.Leino, M.Nyman, J.Pakarinen, P.Rahkila, C.Scholey, J.Sorri, J.Uusitalo, P.A.Butler, M.Dimmock, D.T.Joss, J.Thomson, C.J.Lister, B.Cederwall, B.Hadinia, M.Sandzelius

Recoil Beta Tagging: Application to the study of odd-odd near proton drip line nuclei, ⁷⁴Rb and ⁷⁸Y

RADIOACTIVITY ⁷⁸Y(β⁺) [from ⁴⁰Ca(⁴⁰Ca, np), E=118, 121 MeV]; measured Eγ, Iγ, γγ, βγ-coin. ⁷⁸Y deduced levels.

doi: 10.1140/epjst/e2007-00290-8
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2007PA27      Phys.Rev. C 75, 061302 (2007)

R.D.Page, L.Bianco, I.G.Darby, J.Uusitalo, D.T.Joss, T.Grahn, R.-D.Herzberg, J.Pakarinen, J.Thomson, S.Eeckhaudt, P.T.Greenlees, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, A.-P.Leppanen, M.Nyman, P.Rahkila, J.Saren, C.Scholey, A.Steer, M.B.Gomez Hornillos, J.S.Al-Khalili, A.J.Cannon, P.D.Stevenson, S.Erturk, B.Gall, B.Hadinia, M.Venhart, J.Simpson

α decay of ¹⁵⁹Re and proton emission from ¹⁵⁵Ta

RADIOACTIVITY ¹⁵⁹Re(α) [from ¹⁰⁶Cd(⁵⁸Ni, X)]; ¹⁵⁵Ta(p); measured Eα, Iα, Ep, Ip. deduced separation energies.

doi: 10.1103/PhysRevC.75.061302
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2006HE19      Nature(London) 442, 896 (2006)

R.D.Herzberg, P.T.Greenlees, P.A.Butler, G.D.Jones, M.Venhart, I.G.Darby, S.Eeckhaudt, K.Eskola, T.Grahn, C.Gray-Jones, F.P.Hessberger, P.Jones, R.Julin, S.Juutinen, S.Ketelhut, W.Korten, M.Leino, A.-P.Leppanen, S.Moon, M.Nyman, R.D.Page, J.Pakarinen, A.Pritchard, P.Rahkila, J.Saren, C.Scholey, A.Steer, Y.Sun, Ch.Theisen, J.Uusitalo

Nuclear isomers in superheavy elements as stepping stones towards the island of stability

NUCLEAR REACTIONS ²⁰⁸Pb(⁴⁸Ca, 2n), E=219 MeV; measured delayed Eγ, Iγ, E(ce), I(ce), X-ray spectra. ²⁵⁴No deduced levels, J, π, isomeric states T_1/2, configurations. Gas-filled separator, recoil-decay tagging.

doi: 10.1038/nature05069
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2006HE25      Phys.Scr. T125, 73 (2006)

R.D.Herzberg, P.T.Greenlees, P.A.Butler, G.D.Jones, I.G.Darby, S.Eeckhaudt, T.Grahn, C.Gray-Jones, F.P.Hessberger, P.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, A.-P.Leppanen, S.Moon, M.Nyman, R.D.Page, J.Pakarinen, A.Pritchard, P.Rahkila, M.Sandzelius, J.Saren, C.Scholey, A.Steer, J.Uusitalo, M.Venhart

Isomer spectroscopy in ²⁵⁴No

NUCLEAR REACTIONS ²⁰⁸Pb(⁴⁸Ca, 2n), E=219 MeV; measured delayed Eγ, Iγ, E(ce), I(ce), X-ray spectra, (recoil)γ-coin. ²⁵⁴No deduced isomeric states energies, J, π, T_1/2. Recoil-decay tagging.

doi: 10.1088/0031-8949/2006/T125/016
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2006JO10      Phys.Lett. B 641, 34 (2006)

D.T.Joss, I.G.Darby, R.D.Page, J.Uusitalo, S.Eeckhaudt, T.Grahn, P.T.Greenlees, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, A.-P.Leppanen, M.Nyman, J.Pakarinen, P.Rahkila, J.Saren, C.Scholey, A.Steer, A.J.Cannon, P.D.Stevenson, J.S.Al-Khalili, S.Erturk, M.Venhart, B.Gall, B.Hadinia, J.Simpson

Probing the limit of nuclear existence: Proton emission from ¹⁵⁹Re

NUCLEAR REACTIONS ¹⁰⁶Cd(⁵⁸Ni, 4np), E=300 MeV; measured Eα, Iα, Ep, Ip, (recoil)α-coin following residual nucleus decay. Recoil-decay correlation technique.

RADIOACTIVITY ¹⁵⁹Re(p) [from ¹⁰⁶Cd(⁵⁸Ni, 4np)]; measured Ep, T_1/2; deduced ground-state configuration.

doi: 10.1016/j.physletb.2006.08.014
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2006ST14      Nucl.Instrum.Methods Phys.Res. A565, 630 (2006)

A.N.Steer, D.G.Jenkins, R.Glover, B.S.Nara Singh, N.S.Pattabiraman, R.Wadsworth, S.Eeckhaudt, T.Grahn, P.T.Greenlees, P.Jones, R.Julin, S.Juutinen, M.Leino, M.Nyman, J.Pakarinen, P.Rahkila, J.Saren, C.Scholey, J.Sorri, J.Uusitalo, P.A.Butler, I.G.Darby, R.-D.Herzberg, D.T.Joss, R.D.Page, J.Thomson, R.Lemmon, J.Simpson, B.Blank

Recoil-beta tagging: A novel technique for studying proton-drip-line nuclei

NUCLEAR REACTIONS ⁴⁰Ca(³⁶Ar, np), E=103 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. ⁷⁴Rb deduced transitions. Recoil-beta tagging, mass separator.

RADIOACTIVITY ⁷⁴Rb(β⁺) [from ⁴⁰Ca(³⁶Ar, np)]; measured Eβ.

doi: 10.1016/j.nima.2006.06.034
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Note: The following list of authors and aliases matches the search parameter A.Steer: , A.N.STEER