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Search: Author = M.A.Hotchkis

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1999BO24      Eur.Phys.J. A 5, 235 (1999)

R.Bonetti, A.Guglielmetti, G.Poli, E.Sacchi, D.Fink, M.A.C.Hotchkis, G.E.Jacobsen, E.M.Lawson, Q.Hua, A.M.Smith, C.Tuniz

14C in Uranium and Thorium Minerals: A signature of cluster radioactivity ?

doi: 10.1007/s100500050279
Citations: PlumX Metrics

1996SM11      Nucl.Instrum.Methods Phys.Res. A382, 309 (1996)

A.M.Smith, D.Fink, M.A.C.Hotchkis, G.E.Jacobsen, E.M.Lawson, C.Tuniz, E.Sacchi, D.Louvat, G.M.Zuppi, R.Bonetti

Recent Developments at the ANTARES AMS Centre

doi: 10.1016/S0168-9002(96)00403-2
Citations: PlumX Metrics

1993CI01      Phys.Rev. C47, 1294 (1993)

J.A.Cizewski, M.A.C.Hotchkis, J.L.Durell, J.Copnell, A.S.Mowbray, J.Fitzgerald, W.R.Phillips, I.Ahmad, M.P.Carpenter, R.V.F.Janssens, T.L.Khoo, E.F.Moore, L.R.Morss, Ph.Benet, D.Ye

New N = 84 Isotone: 136Te

RADIOACTIVITY 248Cm(SF); measured γγ-coin. 252Cf(SF); measured Eγ, Iγ. 136Te deduced levels, J, π, transitions.

doi: 10.1103/PhysRevC.47.1294
Citations: PlumX Metrics

1993FR01      Nucl.Phys. A552, 10 (1993)

S.J.Freeman, R.Chapman, J.L.Durell, M.A.C.Hotchkis, F.Khazaie, J.C.Lisle, J.N.Mo, A.M.Bruce, R.A.Cunningham, P.V.Drumm, D.D.Warner

Two-Quasiproton Structures in Ytterbium-174

NUCLEAR REACTIONS 175Lu(t, α), E=35.5 MeV; measured absolute σ(θ). 174Yb deduced levels, L, J, π, K, M1 transition strengths distributions. Natural targets.

doi: 10.1016/0375-9474(93)90328-U
Citations: PlumX Metrics

1993FR04      Nucl.Phys. A554, 333 (1993)

S.J.Freeman, R.Chapman, J.L.Durell, M.A.C.Hotchkis, F.Khazaie, J.C.Lisle, J.N.Mo, A.M.Bruce, R.A.Cunningham, P.V.Drumm, D.D.Warner, J.D.Garrett

Two-Quasiproton Configurations in Dysprosium-164

NUCLEAR REACTIONS 165Ho(t, α), E=37.3 MeV; measured σ(θ). 164Dy deduced levels, transferred proton L, Nilsson assignments, J, π, K, configuration strengths. Natural targets.

doi: 10.1016/0375-9474(93)90225-M
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1993MC03      Z.Phys. A344, 369 (1993)

J.H.McNeill, A.A.Chishti, P.J.Daly, W.Gelletly, M.A.C.Hotchkis, M.Piiparinen, B.J.Varley, P.J.Woods, J.Blomqvist

Isomeric Decay Studies using a Recoil Mass Separator. Exotic N = 82 and 83 Nuclei 153Yb, 153Lu, 154Lu and 154Hf

NUCLEAR REACTIONS 102Pd(54Fe, X), E=245 MeV; measured γ(recoil)-, γγ-coin. 153Yb, 153,154Lu deduced isomer decay, levels, J, π, B(λ), transition Iγ, configuration. 154Hf deduced levels, J, π, configuration.

doi: 10.1007/BF01283192
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1992SE05      Nucl.Instrum.Methods Phys.Res. A311, 217 (1992)

P.J.Sellin, P.J.Woods, D.Branford, T.Davinson, N.J.Davis, D.G.Ireland, K.Livingston, R.D.Page, A.C.Shotter, S.Hofmann, R.A.Hunt, A.N.James, M.A.C.Hotchkis, M.A.Freer, S.L.Thomas

A Double-Sided Silicon Strip Detector System for Proton Radioactivity Studies

NUCLEAR REACTIONS 54Fe, 92Mo(58Ni, X), E not given; measured fragment decay vs residue mass, Eα, Iα, Ep, Ip; deduced 147Tm, 109I proton-decay.

RADIOACTIVITY 109I(p) [from 56Fe(58Ni, X), E not given]; 108Te(α) [from 109I(proton-decay)]; measured proton, α-spectra; deduced decay sequence. Fusion, evaporation product velocity, mass separation, recoil separator.

doi: 10.1016/0168-9002(92)90867-4
Citations: PlumX Metrics

1991HO16      Nucl.Phys. A530, 111 (1991)

M.A.C.Hotchkis, J.L.Durell, J.B.Fitzgerald, A.S.Mowbray, W.R.Phillips, I.Ahmad, M.P.Carpenter, R.V.F.Janssens, T.L.Khoo, E.F.Moore, L.R.Morss, Ph.Benet, D.Ye

Rotational Bands in the Mass 100 Region

RADIOACTIVITY 248Cm(SF); measured Eγ, γγ-coin. 98,99,100Sr, 99,101Y, 100,101,102,103,104Zr, 101,103,105Nb, 102,103,104,105,106,107,108Mo deduced levels.

doi: 10.1016/0375-9474(91)90758-X
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1991PA05      Z.Phys. A338, 295 (1991)

R.D.Page, P.J.Woods, S.J.Bennett, M.Freer, B.R.Fulton, R.A.Cunningham, J.Groves, M.A.C.Hotchkis, A.N.James

Evidence for the Alpha Decay of 108I

NUCLEAR REACTIONS 54Fe(58Ni, X), E=260 MeV; 50Cr(58Ni, X), E=230 MeV; measured decay particle energy spectra. 108I deduced possible α-decay evidence, no proton decay branch. 105Te deduced no α-decay. Recoil implantation detection system.

doi: 10.1007/BF01288193
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1991SE01      Z.Phys. A338, 245 (1991)

P.J.Sellin, P.J.Woods, R.D.Page, S.J.Bennett, R.A.Cunningham, M.Freer, B.R.Fulton, M.A.C.Hotchkis, A.N.James

The Limit of Stability of Proton-Rich Thallium Isotopes: A search for the decay of 177Tl

NUCLEAR REACTIONS 106Cd(74Se, X), E=340 MeV; measured evaporation residues velocity, mass, α-spectra; deduced no evidence for 177Tl.

RADIOACTIVITY 177,178Hg, 177Au(α) [from 106Cd(74Se, X), E=340 MeV]; measured Eα, Iα, T1/2; deduced no evidence for 177Tl. 165,166Os measured T1/2.

doi: 10.1007/BF01284803
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1990HO12      Phys.Rev.Lett. 64, 3123 (1990)

M.A.C.Hotchkis, J.L.Durell, J.B.Fitzgerald, A.S.Mowbray, W.R.Phillips, I.Ahmad, M.P.Carpenter, R.V.F.Janssens, T.L.Khoo, E.F.Moore, L.R.Morss, Ph.Benet, D.Ye

New Neutron-Rich Nuclei 103,104Zr and the A ≈ 100 Region of Deformation

RADIOACTIVITY 252Cf(SF); measured prompt Eγ, Iγ. 100,101,102,103,104Zr deduced levels, possible J, π, configuration.

doi: 10.1103/PhysRevLett.64.3123
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1990MC02      Z.Phys. A335, 241 (1990)

J.H.McNeill, J.Blomqvist, A.A.Chishti, P.J.Daly, W.Gelletly, M.A.C.Hotchkis, M.Piiparinen, B.J.Varley, P.J.Woods

A 35 μs Isomer in the Exotic N = 83 Nucleus 154Lu

NUCLEAR REACTIONS 102Pd(54Fe, X), E=245 MeV; measured γγ-coin. 154Lu deduced isomer T1/2, decay features, levels, J, π, configuration, B(λ).

1990MO18      Phys.Rev. C42, 1126 (1990)

A.S.Mowbray, I.Ahmad, Ph.Benet, R.F.Casten, M.P.Carpenter, J.L.Durell, J.B.Fitzgerald, M.A.C.Hotchkis, R.V.F.Janssens, T.L.Khoo, E.F.Moore, L.R.Morss, W.R.Phillips, W.Walters, D.Ye

New Nucleus 142Xe: Test of the N(p)N(n) scheme

RADIOACTIVITY 248Cm(SF); measured fragment decay γγ-coin. 142Xe deduced levels, J, π. Model NpNn scheme comparison.

doi: 10.1103/PhysRevC.42.1126
Citations: PlumX Metrics

1989DR03      Nucl.Phys. A496, 530 (1989)

P.V.Drumm, L.K.Fifield, R.A.Bark, M.A.C.Hotchkis, C.L.Woods

The 40Ar(13C, 14O)39S Reaction and the Ground-State Mass of 39S

NUCLEAR REACTIONS 40Ar(13C, 14O), (13C, 15O), (13C, 12C), E=96 MeV; measured σ(E(14O)), σ(E(15O)), σ(E(12C)); deduced reaction mechanism, Q. 39S deduced mass excess, excited state. DWBA calculations. Gas target.

doi: 10.1016/0375-9474(89)90075-4
Citations: PlumX Metrics

1989FR06      Phys.Lett. 222B, 347 (1989)

S.J.Freeman, R.Chapman, J.L.Durell, M.A.C.Hotchkis, F.Khazaie, J.C.Lisle, J.N.Mo, A.M.Bruce, R.A.Cunningham, P.V.Drumm, D.D.Warner, J.D.Garrett

The Microscopic Structure of the M1 Mode in 164Dy

NUCLEAR REACTIONS 165Ho(t, α), E=37.3 MeV; measured σ(Eα), yield vs θ. 164Dy deduced levels, J, π, K, M1 transition features.

doi: 10.1016/0370-2693(89)90321-3
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1989MC01      Z.Phys. A332, 105 (1989)

J.H.McNeill, A.A.Chishti, P.J.Daly, M.A.C.Hotchkis, M.Piiparinen, B.J.Varley

A 15 μs Isomer in the Z = 70 N = 83 Nucleus 153Yb

NUCLEAR REACTIONS 102Pd(54Fe, X), E=245 MeV; measured Eγ, Iγ, γγ-, γ(X-ray)-coin. 153Yb deduced isomer, T1/2, J, π, configuration. Fusion-evaporation recoil product mass analysis.

1989MC07      Phys.Rev.Lett. 63, 860 (1989)

J.H.McNeill, J.Blomqvist, A.A.Chishti, P.J.Daly, W.Gelletly, M.A.C.Hotchkis, M.Piiparinen, B.J.Varley, P.J.Woods

Exotic N = 82 Nuclei 153Lu and 154Hf and Filling of the πh11/2 Subshell

NUCLEAR REACTIONS 102Pd(54Fe, 2n), (54Fe, np), (54Fe, 2np), (54Fe, n2p), E=235, 245 MeV; measured relative isomeric yields; calculated residual production σ. γ-ray spectroscopy.

RADIOACTIVITY 153mLu, 154mHf [from 102Pd(54Fe, xnyp), E=235, 245 MeV]; measured γγ-, γ(X-ray)-coin; deduced isomer T1/2, configuration, decay scheme, level J, π, B(λ).

doi: 10.1103/PhysRevLett.63.860
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1989OR03      Nucl.Phys. A491, 443 (1989)

N.A.Orr, W.N.Catford, L.K.Fifield, M.A.C.Hotchkis, T.R.Ophel, D.C.Weisser, C.L.Woods

Observations of 20N via the Heavy-Ion Transfer Reaction 48Ca(18O, 20N)46Sc

NUCLEAR REACTIONS 48Ca(18O, 20N), E=108-119 MeV; measured Q, σ(E(20N)). 20N deduced mass excess.

doi: 10.1016/0375-9474(89)90578-2
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1989RE02      Nucl.Instrum.Methods Phys.Res. A276, 228 (1989)

J.E.Reiff, M.A.C.Hotchkis, D.M.Moltz, T.F.Lang, J.D.Robertson, J.Cerny

A Fast In-Beam Recoil Catcher Wheel and the Observation of Beta-Delayed Two-Proton Emission from 31Ar

NUCLEAR REACTIONS Mg(3He, X), E=110, 135 MeV; measured β-delayed proton spectra for 17Ne, 21Mg, 25Si, 22Al, 31Ar. Fast in-beam recoil catcher foil wheel.

RADIOACTIVITY 17Ne, 21Mg, 25Si(β+p) [from Mg(3He, X), E=110 MeV]; measured β-delayed proton spectra. 22Al, 31Ar(β+p) [from Mg(3He, X), E=135 MeV]; measured β-delayed two-proton spectra. 31Ar deduced Q(EC), mass excess, possible T1/2, decay systematics. 31Cl deduced IAS energy, possible decay systematics.

doi: 10.1016/0168-9002(89)90637-2
Citations: PlumX Metrics

1989WO02      Nucl.Instrum.Methods Phys.Res. A276, 195 (1989)

P.J.Woods, S.J.Bennett, M.Freer, B.R.Fulton, R.D.Page, K.A.Connell, R.A.Cunningham, J.Groves, J.Simpson, A.N.James, M.A.C.Hotchkis, W.D.M.Rae

A Detection System for the Study of Alpha and Proton Radioactivity on the Daresbury Recoil Mass Separator

NUCLEAR REACTIONS 110Cd(58Ni, X), E=260 MeV; measured E(α), I(α) following evaporation residue decay. 153Tm, 161,162W, 158,157Hf, 154Yb deduced α-branching ratio. Position sensitive silcon surface barrier detector.

doi: 10.1016/0168-9002(89)90632-3
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1987BL14      Nucl.Instrum.Methods Phys.Res. B26, 328 (1987)

F.B.Blonnigen, D.M.Moltz, T.F.Lang, W.F.Knoll, X.Xu, M.A.C.Hotchkis, J.E.Reiff, J.Cerny

Improvements to the Helium-Jet Coupled On-Line Mass Separator RAMA

NUCLEAR REACTIONS 142Nd(16O, xn)153Er, E=120 MeV; measured Eα, Iα. Improved on-line mass separator.

doi: 10.1016/0168-583X(87)90772-5
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1987HO01      Phys.Rev. C35, 315 (1987)

M.A.C.Hotchkis, J.E.Reiff, D.J.Vieira, F.Blonnigen, T.F.Lang, D.M.Moltz, X.Xu, J.Cerny

Beta-Delayed Proton Decay of 61Ge

RADIOACTIVITY 61Ge(β+p) [from 40Ca(24Mg, 3n), (28Si, α3n), E=73-128 MeV]; measured β-delayed Ep, T1/2. 61Ga deduced levels, possible J, π. ΔE-E telescopes.

doi: 10.1103/PhysRevC.35.315
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1985DR06      Nucl.Phys. A441, 95 (1985)

P.V.Drumm, L.K.Fifield, R.A.Bark, M.A.C.Hotchkis, C.L.Woods, P.Maier-Komor

Ground-State Mass Excesses and Low-Lying Levels of the Neutron-Rich Nuclei 36P, 35P and 34P

NUCLEAR REACTIONS 36,34S(7Li, 7Be), 36S(6Li, 7Be), E=52 MeV; 36,34S(11B, 11C), E=83 MeV; measured σ(E(7Be)), σ(E(11C)). 36,35,34P deduced mass excess, levels. Enriched targets.

doi: 10.1016/0375-9474(85)90169-1
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1985FI03      Nucl.Phys. A440, 531 (1985)

L.K.Fifield, C.L.Woods, R.A.Bark, P.V.Drumm, M.A.C.Hotchkis

Masses and Level Schemes of 33Si and 34Si

NUCLEAR REACTIONS 36S(11B, 13N), (11B, 14N), E=83 MeV; measured σ(E(13N)), σ(E(14N)). 33,34Si deduced ground-state mass excesses, levels. Enriched targets.

doi: 10.1016/0375-9474(85)90244-1
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1985FI08      Nucl.Phys. A437, 141 (1985)

L.K.Fifield, P.V.Drumm, M.A.C.Hotchkis, T.R.Ophel, C.L.Woods

The 26Mg(18O, 17F)27Na and 26Mg(18O, 15O)29Mg Reactions and the Level Schemes of 27Na and 29Mg

NUCLEAR REACTIONS 26Mg(18O, 17F), (18O, 15O), E=100-117 MeV; measured σ(E(17F)), σ(E(15O)). 27Na, 29Mg deduced levels, ground state mass excesses. Enriched targets.

doi: 10.1016/0375-9474(85)90230-1
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1985WO04      Nucl.Phys. A437, 454 (1985)

C.L.Woods, L.K.Fifield, R.A.Bark, P.V.Drumm, M.A.C.Hotchkis

A Study of 25Ne via the 26Mg(13C, 14O)25Ne Reactions

NUCLEAR REACTIONS 24,26Mg(13C, 14O), E=96 MeV; measured σ(E(14O)). 25Ne deduced mass excess, levels. Enriched target.

doi: 10.1016/0375-9474(85)90101-0
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1984CO20      Phys.Rev. C30, 1538 (1984)

J.Cook, K.W.Kemper, P.V.Drumm, L.K.Fifield, M.A.C.Hotchkis, T.R.Ophel, C.L.Woods

16O(7Li, 7Be)16N Reaction at 50 MeV

NUCLEAR REACTIONS 16O(7Li, 7Li), (7Li, 7Be), E=50 MeV; measured σ(θ), σ(E(16N)); deduced optical model parameters. 16N levels deduced spectroscopic amplitudes. Microscopic DWBA analysis.

doi: 10.1103/PhysRevC.30.1538
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1521.

1984FI02      Nucl.Phys. A417, 534 (1984)

L.K.Fifield, M.A.C.Hotchkis, P.V.Drumm, T.R.Ophel, G.D.Putt, D.C.Weisser

The Mass and Low-Lying Levels of 40Cl

NUCLEAR REACTIONS 40Ar(7Li, 7Be), E=52, 54 MeV; 40Ar(11B, 11C), (11B, 13N), E=81 MeV; measured σ(E(7Be)), σ(E(11C)), σ(E(13N)). 40Cl deduced mass excess, levels. 38S deduced levels.

doi: 10.1016/0375-9474(84)90411-1
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1983HO08      Nucl.Phys. A398, 130 (1983)

M.A.C.Hotchkis, L.K.Fifield, J.R.Leigh, T.R.Ophel, G.D.Putt, D.C.Weisser

New Measurements of the Masses of 15B and 19N

NUCLEAR REACTIONS 48Ca(18O, 15B), (18O, 19N), E=108-119 MeV; measured σ(E(15B)), σ(E(19N)). 15B, 19N deduced mass excess. Enriched target.

doi: 10.1016/0375-9474(83)90652-8
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1983PU01      Nucl.Phys. A399, 190 (1983)

G.D.Putt, L.K.Fifield, M.A.C.Hotchkis, T.R.Ophel, D.C.Weisser

The Mass of 18N

NUCLEAR REACTIONS 18O(7Li, 7Be), E=52 MeV; measured σ(E(7Be)). 18N deduced mass excess, levels. Enriched target.

doi: 10.1016/0375-9474(83)90602-4
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1982FI10      Nucl.Phys. A385, 505 (1982)

L.K.Fifield, J.L.Durell, M.A.C.Hotchkis, J.R.Leigh, T.R.Ophel, D.C.Weisser

The Mass of 18C from a Heavy Ion Double-Charge-Exchange Reaction

NUCLEAR REACTIONS 48Ca(18O, 18C), 48Ca(18O, 17C), E=112 MeV; measured σ(E(18C)), σ(E(17C)). 18C, 17C deduced mass excesses, levels. Enriched target.

doi: 10.1016/0375-9474(82)90100-2
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