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Search: Author = J.A.MacDonald

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2010BA43      Phys.Rev. C 82, 045501 (2010)

G.C.Ball, G.Boisvert, P.Bricault, R.Churchman, M.Dombsky, T.Lindner, J.A.Macdonald, E.Vandervoort, S.Bishop, J.M.D'Auria, J.C.Hardy, V.E.Iacob, J.R.Leslie, H.-B.Mak

Precise half-life measurement of the superallowed β+ emitter 38Km

RADIOACTIVITY 38mK(β+)[38K beam from Ca(p, X), E=500 MeV]; measured integral activity using a 4π continuous gas flow proportional β counter, half-life; deduced Ft value for superallowed β transition. Comparison with previous half-life measurements.

doi: 10.1103/PhysRevC.82.045501
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2007ZG01      Acta Phys.Pol. B38, 1179 (2007)

E.F.Zganjar, T.Achtzehn, D.Albers, C.Andreoiu, A.N.Andreyev, R.A.E.Austin, G.C.Ball, J.A.Behr, G.C.Biosvert, P.Bricault, S.Bishop, R.S.Chakrawarthy, R.Churchman, D.Cross, E.Cunningham, J.M.D'Auria, M.Dombsky, P.Finlay, P.E.Garrett, G.F.Grinyer, G.Hackman, V.Hanemaayer, J.C.Hardy, D.F.Hodgson, B.Hyland, V.Iacob, P.Klages, K.A.Koopmans, W.D.Kulp, J.Lassen, J.P.Lavoie, J.R.Leslie, T.Linder, J.A.Macdonald, H.-B.Mak, D.Melconian, A.C.Morton, W.E.Ormand, C.J.Osborne, C.J.Pearson, M.R.Pearson, A.A.Phillips, A.Piechaczek, J.Ressler, F.Sarazin, G.Savard, M.A.Schumaker, H.C.Scraggs, C.E.Svensson, J.J.Valiente-Dobon, I.S.Towner, J.C.Waddington, P.M.Walker, K.Wendt, J.L.Wood

Superallowed Beta Decay Studies at TRIUMF - Nuclear Structure and Fundamental Symmetries


2005BA87      J.Phys.(London) G31, S1491 (2005)

G.C.Ball, T.Achtzehn, D.Albers, J.S.Al-Khalili, C.Andreoiu, A.Andreyev, S.F.Ashley, R.A.E.Austin, J.A.Becker, P.Bricault, S.Chan, R.S.Chakrawarthy, R.Churchman, H.Coombes, E.S.Cunningham, J.Daoud, M.Dombsky, T.E.Drake, B.Eshpeter, P.Finlay, P.E.Garrett, C.Geppert, G.F.Grinyer, G.Hackman, V.Hanemaayer, B.Hyland, G.A.Jones, K.A.Koopmans, W.D.Kulp, J.Lassen, J.P.Lavoie, J.R.Leslie, Y.Litvinov, J.A.Macdonald, C.Mattoon, D.Melconian, A.C.Morton, C.J.Osborne, C.J.Pearson, M.Pearson, A.A.Phillips, J.J.Ressler, F.Sarazin, M.A.Schumaker, J.Schwarzenberg, H.C.Scraggs, M.B.Smith, C.E.Svensson, J.J.Valiente-Dobon, J.C.Waddington, P.M.Walker, K.Wendt, S.J.Williams, J.L.Wood, E.F.Zganjar

High-resolution γ-ray spectroscopy: a versatile tool for nuclear β-decay studies at TRIUMF-ISAC

doi: 10.1088/0954-3899/31/10/019
Citations: PlumX Metrics


2005GR07      Phys.Rev. C 71, 044309 (2005)

G.F.Grinyer, C.E.Svensson, C.Andreoiu, A.N.Andreyev, R.A.E.Austin, G.C.Ball, R.S.Chakrawarthy, P.Finlay, P.E.Garrett, G.Hackman, J.C.Hardy, B.Hyland, V.E.Iacob, K.A.Koopmans, W.D.Kulp, J.R.Leslie, J.A.Macdonald, A.C.Morton, W.E.Ormand, C.J.Osborne, C.J.Pearson, A.A.Phillips, F.Sarazin, M.A.Schumaker, H.C.Scraggs, J.Schwarzenberg, M.B.Smith, J.J.Valiente-Dobon, J.C.Waddington, J.L.Wood, E.F.Zganjar

High precision measurements of 26Na β- decay

RADIOACTIVITY 26Na(β-) [from Si, Ta(p, X)]; measured Eγ, Iγ, T1/2; deduced log ft. 26Mg deduced levels, J, π, β-feeding intensities.

doi: 10.1103/PhysRevC.71.044309
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2003PI08      Phys.Rev. C 67, 051305 (2003)

A.Piechaczek, E.F.Zganjar, G.C.Ball, P.Bricault, J.M.D'Auria, J.C.Hardy, D.F.Hodgson, V.Iacob, P.Klages, W.D.Kulp, J.R.Leslie, M.Lipoglavsek, J.A.Macdonald, H.-B.Mak, D.M.Moltz, G.Savard, J.von Schwarzenberg, C.E.Svensson, I.S.Towner, J.L.Wood

High precision branching ratio measurement for the superallowed β decay of 74Rb: A prerequisite for exacting tests of the standard model

RADIOACTIVITY 74Rb(EC) [from Nb(p, X)]; measured Eγ, Iγ, E(ce), I(ce); deduced analog transition branching ratio, QEC. 74Kr deduced levels, transitions.

doi: 10.1103/PhysRevC.67.051305
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2002ZG01      Eur.Phys.J. A 15, 229 (2002)

E.F.Zganjar, A.Piechaczek, G.C.Ball, P.Bricault, J.M.D'Auria, J.C.Hardy, D.F.Hodgson, V.Iacob, P.Klages, W.D.Kulp, J.R.Leslie, M.Lipoglavsek, J.A.Macdonald, H.B.Mak, D.M.Moltz, G.Savard, J.von Schwarzenberg, C.E.Svensson, I.S.Towner, J.L.Wood

Tests of the standard model from superallowed Fermi β-decay studies: The 74Rb β-decay

RADIOACTIVITY 74Rb(β+), (EC) [from Nb(p, X)]; measured Eγ, Iγ, E(ce), I(ce), βγ-, β(ce)-coin; deduced branching ratios. 74Kr deduced levels, transition intensities. Implications for standard model test discussed.

doi: 10.1140/epja/i2001-10259-y
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2001BA12      Phys.Rev.Lett. 86, 1454 (2001)

G.C.Ball, S.Bishop, J.A.Behr, G.C.Boisvert, P.Bricault, J.Cerny, J.M.D'Auria, M.Dombsky, J.C.Hardy, V.Iacob, J.R.Leslie, T.Lindner, J.A.Macdonald, H.-B.Mak, D.M.Moltz, J.Powell, G.Savard, I.S.Towner

Precise Half-Life Measurement for the Superallowed 0+ → 0+ β Emitter 74Rb: First results from the new radioactive beam facility (ISAC) at TRIUMF

RADIOACTIVITY 74Rb(β+) [from Nb(p, X)]; measured superallowed decay T1/2.

doi: 10.1103/PhysRevLett.86.1454
Citations: PlumX Metrics


2000QU01      Nucl.Phys. A663-664, 903c (2000)

M.A.Quraan, P.Amaudruz, W.Andersson, M.Comyn, Yu.Davydov, P.Depommier, J.Doornbos, W.Faszer, C.A.Gagliardi, D.R.Gill, P.Green, P.Gumplinger, J.C.Hardy, M.Hasinoff, R.Helmer, R.Henderson, A.Khruchinsky, P.Kitching, D.D.Koetke, E.Korkmaz, Y.Lachin, D.Mass, J.A.Macdonald, R.Manweiler, T.Mathie, J.R.Musser, P.Nord, A.Olin, D.Ottewell, R.Openshaw, L.Piilonen, T.Porcelli, J.-M.Poutissou, R.Poutissou, N.L.Rodning, J.Schaapman, V.Selivanov, G.Sheffer, Y.Shin, F.Sobratee, J.Soukup, T.D.S.Stanislaus, G.Stinson, R.Tacik, V.Torokhov, R.E.Tribble, M.A.Vasiliev, H.K.Walter, D.Wright

A Precision Measurement of Muon Decay

doi: 10.1016/S0375-9474(99)00793-9
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1999BE16      Phys.Rev. C59, 2853 (1999)

P.C.Bergbusch, D.S.Armstrong, M.Blecher, C.Q.Chen, B.C.Doyle, T.P.Gorringe, P.Gumplinger, M.D.Hasinoff, G.Jonkmans, J.A.Macdonald, J.-M.Poutissou, R.Poutissou, C.N.Sigler, D.H.Wright

Radiative Muon Capture on O, Al, Si, Ti, Zr, and Ag

NUCLEAR REACTIONS O, 27Al, Si, Ti, Zr, Ag(μ-, γ), E at rest; measured branching ratio for radiative capture; deduced ratio of weak pseudoscaler to axial coupling constants.

doi: 10.1103/PhysRevC.59.2853
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1998WR01      Phys.Rev. C57, 373 (1998)

D.H.Wright, S.Ahmad, D.S.Armstrong, G.Azuelos, W.Bertl, M.Blecher, C.Q.Chen, P.Depommier, B.C.Doyle, T.von Egidy, T.P.Gorringe, P.Gumplinger, M.D.Hasinoff, D.Healey, G.Jonkmans, A.J.Larabee, J.A.Macdonald, S.C.McDonald, M.Munro, J.-M.Poutissou, R.Poutissou, B.C.Robertson, D.G.Sample, E.Saettler, C.N.Sigler, G.N.Taylor, N.S.Zhang

Measurement of the Induced Pseudoscalar Coupling using Radiative Muon Capture on Hydrogen

NUCLEAR REACTIONS 1H(μ-, n), E at 63 MeV/c; measured Eγ, Iγ; deduced radiative muon capture branching ratio, weak pseudoscalar coupling.

doi: 10.1103/PhysRevC.57.373
Citations: PlumX Metrics


1996JO22      Phys.Rev.Lett. 77, 4512 (1996)

G.Jonkmans, S.Ahmad, D.S.Armstrong, G.Azuelos, W.Bertl, M.Blecher, C.Q.Chen, P.Depommier, B.C.Doyle, T.von Egidy, T.P.Gorringe, P.Gumplinger, M.D.Hasinoff, D.Healey, A.J.Larabee, J.A.Macdonald, S.C.McDonald, M.Munro, J.-M.Poutissou, R.Poutissou, B.C.Robertson, D.G.Sample, E.Saettler, C.M.Sigler, G.N.Taylor, D.H.Wright, N.S.Zhang

Radiative Muon Capture on Hydrogen and the Induced Pseudoscalar Coupling

NUCLEAR REACTIONS 1H(μ-, γ), E at rest; measured photons partial branching ratio; deduced weak pseudoscalar coupling constant, related features.

doi: 10.1103/PhysRevLett.77.4512
Citations: PlumX Metrics


1995MA21      Nucl.Phys. A585, 345c (1995)

J.A.Macdonald, and the KEK E246 Japan-Russia-Korea-Canada-USA Collaboration

Search for T-Violation in K+ Decays

doi: 10.1016/0375-9474(94)00599-I
Citations: PlumX Metrics


1992AR14      Phys.Rev. C46, 1094 (1992)

D.S.Armstrong, A.Serna-Angel, S.Ahmad, G.Azuelos, W.Bertl, M.Blecher, C.Q.Chen, P.Depommier, T.von Egidy, T.P.Gorringe, M.D.Hasinoff, R.S.Henderson, A.J.Larabee, J.A.Macdonald, S.C.McDonald, J.-M.Poutissou, R.Poutissou, B.C.Robertson, D.G.Sample, G.N.Taylor, D.H.Wright, N.S.Zhang

Radiative Muon Capture on Al, Si, Ca, Mo, Sn, and Pb

NUCLEAR REACTIONS 27Al, 28Si, 40Ca, Mo, Sn, Pb(μ-, γ), E at rest; measured γ yield; deduced induced pseudoscalar coupling constant (g(p)).

doi: 10.1103/PhysRevC.46.1094
Citations: PlumX Metrics


1992BE70      Z.Phys. C56, S150 (1992)

W.Bertl, S.Ahmad, D.S.Armstrong, G.Azuelos, M.Blecher, C.Q.Chen, P.Depommier, P.Gumplinger, T.P.Gorringe, M.D.Hasinoff, R.Henderson, G.Jonkmans, A.J.Larabee, J.A.Macdonald, S.C.McDonald, J.-M.Poutissou, R.Poutissou, B.C.Robertson, D.G.Sample, W.Schott, G.N.Taylor, T.von Egidy, D.H.Wright, N.S.Zhang

Radiative muon capture on hydrogen

NUCLEAR REACTIONS 1H(π-, γ), (π-, π0), (μ-, X), (μ+, X), E at rest; measured Eγ, Iγ.

doi: 10.1007/BF02426790
Citations: PlumX Metrics


1991AR02      Phys.Rev. C43, 1425 (1991)

D.S.Armstrong, S.Ahmad, R.A.Burnham, T.P.Gorringe, M.D.Hasinoff, A.J.Larabee, C.E.Waltham, G.Azuelos, J.A.Macdonald, T.Numao, J.-M.Poutissou, M.Blecher, D.H.Wright, E.T.H.Clifford, J.Summhammer, P.Depommier, R.Poutissou, H.Mes, B.C.Robertson

Radiative Muon Capture on Carbon, Oxygen, and Calcium

NUCLEAR REACTIONS 12C, 16O, 40Ca(μ-, γ), E at rest; measured Eγ, Iγ; deduced g(p)/g(a).

doi: 10.1103/PhysRevC.43.1425
Citations: PlumX Metrics


1990AZ05      Ann.Phys.(Paris) 15, 13 (1990)

G.Azuelos, S.Ahmad, D.S.Armstrong, W.Bertl, M.Blecher, R.A.Burnham, C.-Q.Chen, P.Depommier, T.von Egidy, T.P.Gorringe, M.D.Hasinoff, R.Henderson, A.J.Larabee, J.A.MacDonald, S.C.McDonald, J.-M.Poutissou, R.Poutissou, B.C.Robertson, A.Serna-Angel, G.N.Taylor, C.E.Waltham, D.H.Wright, N.-S.Zhang

Capture Radiative des Muons sur les Noyaux et le Proton

NUCLEAR REACTIONS 1H(μ-, ν), E at rest; analyzed capture reaction data; deduced g(P) inference features.


1989AR07      Phys.Rev. C40, R1100 (1989)

D.S.Armstrong, S.Ahmad, R.A.Burnham, T.P.Gorringe, M.D.Hasinoff, A.J.Larabee, C.E.Waltham, G.Azuelos, J.A.Macdonald, J.-M.Poutissou, M.Blecher, D.H.Wright, E.T.H.Clifford, J.Summhammer, P.Depommier, R.Poutissou, H.Mes, B.C.Robertson

Radiative Muon Capture on Oxygen and the Induced Pseudoscalar Coupling

NUCLEAR REACTIONS 16O(μ-, γ), E at rest; measured γ spectrum. 16O deduced (gp/ga).

doi: 10.1103/PhysRevC.40.R1100
Citations: PlumX Metrics


1989GO17      Phys.Rev. C40, 2390 (1989)

T.P.Gorringe, S.Ahmad, D.S.Armstrong, R.A.Burnham, M.D.Hasinoff, A.J.Larabee, C.E.Waltham, G.Azuelos, J.A.Macdonald, J.-M.Poutissou, M.Blecher, D.H.Wright, P.Depommier, R.Poutissou, E.T.H.Clifford

Search for the Tetraneutron using the Reaction 4He(π-, π+)4n

NUCLEAR REACTIONS 4He(π-, π+), E=80 MeV; measured pion momentum spectra; deduced tetraneutron production σ upper limit.

doi: 10.1103/PhysRevC.40.2390
Citations: PlumX Metrics


1987AH07      Can.J.Phys. 65, 753 (1987)

S.Ahmad, G.A.Beer, B.H.Olaniyi, A.Olin, S.N.Kaplan, A.Mireshghi, J.A.Macdonald, O.Hausser

Search for the Shape-Isomeric Gamma Decay in Muonic Uranium

NUCLEAR REACTIONS 236,238,235U(μ-, γ), E at rest; measured Eγ, Iγ, E X-ray, I X-ray, γ(t); deduced no shape isomer excitation evidence. 235,236,238U deduced μ-capture T1/2.

ATOMIC PHYSICS, Mesic-Atoms 236,238,235U(μ-, γ), E at rest; measured Eγ, Iγ, E X-ray, I X-ray, γ(t).

doi: 10.1139/p87-109
Citations: PlumX Metrics


1987BR01      Nucl.Phys. A461, 571 (1987)

D.I.Britton, G.A.Beer, J.A.MacDonald, G.R.Mason, T.Numao, A.Olin, P.R.Poffenberger, A.R.Kunselman, B.H.Olaniyi

The Pionic Sodium 2p-1s Transition

ATOMIC PHYSICS, Mesic-Atoms 23Na; measured 2p-1s pionic X-ray energy, level width. Compared with theoretical and other experimental results.

doi: 10.1016/0375-9474(87)90410-6
Citations: PlumX Metrics


1986AH04      Can.J.Phys. 64, 665 (1986)

S.Ahmad, O.Hausser, J.A.Macdonald, B.H.Olaniyi, A.Olin, G.A.Beer, G.R.Mason, S.N.Kaplan

Muon-Induced Fission in 235U and 238U

NUCLEAR REACTIONS 235,238U(μ-, F), E at rest; measured fission (fragment)(X-ray)-coin; deduced absolute prompt, delayed fission yields. 235,238U deduced muon-induced fission T1/2.

ATOMIC PHYSICS, Mesic-Atoms 235,238U(μ-, F), E at rest; measured (X-ray) fission-coin; deduced muon disappearance rate from 1s state.

doi: 10.1139/p86-123
Citations: PlumX Metrics


1985OL02      Nucl.Phys. A439, 589 (1985)

A.Olin, J.W.Forsman, J.A.MacDonald, G.M.Marshall, T.Numao, P.R.Poffenberger, P.Van Esbroek, G.A.Beer, D.I.Britton, G.R.Mason, A.R.Kunselman, B.H.Olaniyi

Pionic 4f-3d X-Rays from 208Pb and 209Bi

ATOMIC PHYSICS, Mesic-Atoms 208Pb, 209Bi; measured 5g-4f and 4f-3d pionic X-rays; deduced transition widths, π-nucleus interaction models.

NUCLEAR REACTIONS 208Pb, 209Bi(π-, X), E at rest; measured 5g-4f and 4f-3d pionic X-rays; deduced transition widths, π-nucleus interaction models.

doi: 10.1016/0375-9474(85)90328-8
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1984NA01      Phys.Rev.Lett. 52, 105 (1984)

I.Navon, M.J.Leitch, D.A.Bryman, T.Numao, P.Schlatter, G.Azuelos, R.Poutissou, R.A.Burnham, M.Hasinoff, J.M.Poutissou, J.A.Macdonald, J.E.Spuller, C.K.Hargrove, H.Mes, M.Blecher, K.Gotow, M.Moinester, H.Baer

Pion Double Charge Exchange at 50 MeV on 14C

NUCLEAR REACTIONS 14C(π+, π-), E=50 MeV; measured σ(θ), σ(E(π)). 14O deduced double analog, strong nonanalog state excitation.

doi: 10.1103/PhysRevLett.52.105
Citations: PlumX Metrics


1982FR02      Nucl.Phys. A375, 325 (1982)

C.A.Fry, G.A.Beer, G.R.Mason, R.M.Pearce, P.R.Poffenberger, C.I.Sayre, A.Olin, J.A.Macdonald

Pionic X-Rays from 12,13C

ATOMIC PHYSICS, Mesic-Atoms 12,13C; measured pionic, muonic X-rays; deduced strong interaction shifts, widths.

doi: 10.1016/0375-9474(82)90017-3
Citations: PlumX Metrics


1982OL03      Nucl.Phys. A384, 345 (1982)

B.H.Olaniyi, G.A.Beer, A.Fry, J.A.MacDonald, G.R.Mason, A.Olin, R.M.Pearce, P.R.Poffenberger

Pionic K(α) X-Ray Energy and Linewidth in 20Ne and 22Ne

ATOMIC PHYSICS, Mesic-Atoms 20,22Ne; measured pionic K X-rays; deduced strong interaction widths, shifts.

doi: 10.1016/0375-9474(82)90339-6
Citations: PlumX Metrics


1981HA44      Nucl.Phys. A371, 349 (1981)

J.C.Hardy, T.Faestermann, H.Schmeing, J.A.MacDonald, H.R.Andrews, J.S.Geiger, R.L.Graham, K.P.Jackson

T(z) = 1/2 β-Delayed Proton Precursors (II). The Decays 65Ge and 73Kr

RADIOACTIVITY 65Ge [from 40Ca(28Si, 2pn)], 73Kr [from 60Ni(16O, 3n)]; measured β-delayed protons, E(p), I(p), T1/2, pγ-, p X-ray-, γX-ray-coin; deduced branching ratios. 65Ga, 73Br deduced level T1/2, level densities, β-strength function. Natural and enriched targets, Ge(Li), Ge, NaI(Tl), surface barrier Si detectors.

doi: 10.1016/0375-9474(81)90051-8
Citations: PlumX Metrics


1981OL01      Nucl.Phys. A360, 426 (1981)

A.Olin, P.R.Poffenberger, G.A.Beer, J.A.Macdonald, G.R.Mason, R.M.Pearce, W.C.Sperry

Measurement of Pionic and Muonic X-Rays in 10,11B

ATOMIC PHYSICS, Mesic-Atoms 10,11B; measured pionic, muonic 2p-1s X-rays; deduced strong interaction effects, nuclear matter distributions.

doi: 10.1016/0375-9474(81)90154-8
Citations: PlumX Metrics


1980AH02      Phys.Lett. 92B, 83 (1980)

S.Ahmad, G.A.Beer, M.S.Dixit, J.A.Macdonald, G.R.Mason, A.Olin, R.M.Pearce, O.Hausser, S.N.Kaplan

Fission Yields and Lifetimes for Muon Induced Fission in 235U and 238U

NUCLEAR REACTIONS 235,238U(μ-, F), E at rest; measured μ(K X-ray)-coin, prompt, delayed fission yields. 235,238U deduced prompt/delayed fission probability, mean muonic T1/2.

doi: 10.1016/0370-2693(80)90309-3
Citations: PlumX Metrics


1980MA20      Nucl.Phys. A340, 240 (1980)

G.R.Mason, G.A.Beer, M.S.Dixit, S.K.Kim, J.A.Macdonald, A.Olin, R.M.Pearce, W.C.Sperry, J.S.Vincent

Pionic K X-Rays in Liquid 3He

ATOMIC PHYSICS 3,4He; measured pionic, muonic K X-rays; deduced strong interaction shifts, widths.

doi: 10.1016/0375-9474(80)90273-0
Citations: PlumX Metrics


1979PE18      Can.J.Phys. 57, 2084 (1979)

R.M.Pearce, G.A.Beer, M.S.Dixit, S.K.Kim, J.A.Macdonald, G.R.Mason, A.Olin, C.Sabev, W.C.Sperry, C.Wiegand

The Variation of Pionic X-Ray Intensity with Atomic Number

ATOMIC PHYSICS B, Na, Mg, Al, Si, S, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Ge, As, Se, Kr, Sr, Zr, Mo, Rh, Pd, Cd, Sn, Ce, Te, Nd, Sm, Gd, Dy, Ho, Er, Yb, Ta, W, Pt, Au, Hg, Pb, Bi, Th, U; A=7-238; measured pionic X-rays; deduced I(X-ray) dependence on Z.

doi: 10.1139/p79-283
Citations: PlumX Metrics


1978MA12      Phys.Lett. 74B, 179 (1978)

G.R.Mason, G.A.Beer, D.A.Bryman, M.S.Dixit, S.K.Kim, J.A.Macdonald, A.Olin, R.M.Pearce, M.Krell, J.S.Vincent

X-Rays from Pionic 3He

NUCLEAR REACTIONS 3He(π-, γ), E=96 MeV/c; measured pionic X-rays.

doi: 10.1016/0370-2693(78)90547-6
Citations: PlumX Metrics


1978OL04      Nucl.Phys. A312, 361 (1978)

A.Olin, G.A.Beer, D.A.Bryman, M.S.Dixit, J.A.Macdonald, G.R.Mason, R.M.Pearce, P.R.Poffenberger

Pionic 2p-1s X-Ray Transitions in 19F and 23Na

ATOMIC PHYSICS, Mesic-Atoms 19F, 23Na; measured pionic X-rays E(2p-1s), Γ(1s); deduced strong interaction effects.

doi: 10.1016/0375-9474(78)90596-1
Citations: PlumX Metrics


1977MA24      Nucl.Phys. A288, 1 (1977)

J.A.Macdonald, J.C.Hardy, H.Schmeing, T.Faestermann, H.R.Andrews, J.S.Geiger, R.L.Graham, K.P.Jackson

T(z) = 1/2 β-Delayed Proton Precursors (I). The Decay of 69Se

RADIOACTIVITY 69Se [from 40Ca(32S, 2pn)]; measured β-delayed protons, Ep, Ip, T1/2, Eγ, Iγ, γγ-, βγ-, pγ-coin, pX-ray, γX-ray coin; deduced log ft, Q(EC). 69As deduced levels, level density, ICC, B(λ). 69As; measured βγ-coin; deduced Q. Natural enriched targets. Ge(Li), Si(Li), NaI(Tl), Ne 102 plastic scintillator, surface-barrier Si detectors.

doi: 10.1016/0375-9474(77)90078-1
Citations: PlumX Metrics


1976HA22      Phys.Rev.Lett. 37, 133 (1976); Erratum Phys.Rev.Lett. 37, 459 (1976)

J.C.Hardy, J.A.Macdonald, H.Schmeing, H.R.Andrews, J.S.Geiger, R.L.Graham, T.Faestermann, E.T.H.Clifford, K.P.Jackson

Nuclear Lifetimes in the Region of 10-16 sec Measured by a New Technique

RADIOACTIVITY 69Se; measured p X-ray(t), pγ(t), γ X-ray(t), T1/2, Eβ, Q. 69As levels deduced T1/2 limits.

doi: 10.1103/PhysRevLett.37.133
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1976HA29      Phys.Lett. 63B, 27 (1976); Erratum Phys.Lett. 73B, 503 (1978)

J.C.Hardy, J.A.MacDonald, H.Schmeing, T.Faestermann, H.R.Andrews, J.S.Geiger, R.L.Graham, K.P.Jackson

A New Series of Beta-Delayed Proton Precursors

RADIOACTIVITY 65Ge, 69Se, 73Kr, 77Sr; measured delayed protons, T1/2; deduced total β-branching to proton emission, Q(EC)-Bp. 69Se; measured Eβ; deduced Q.

doi: 10.1016/0370-2693(76)90460-3
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1974HA35      Phys.Rev.Lett. 33, 320 (1974)

J.C.Hardy, G.C.Ball, J.S.Geiger, R.L.Graham, J.A.Macdonald, H.Schmeing

Fermi Beta Decay, A > 40: The Masses of 42Sc, 46V, 50Mn, and 54Co

NUCLEAR REACTIONS 26Mg, 27Al, 34S, 42Ca, 46Ti, 50Cr, 54Fe(3He, t), E=33 MeV; measured σ(Et, θ); 26mAl, 34Cl, 42Sc, 46V, 50Mn, 54Co deduced Eβmax, ft.

doi: 10.1103/PhysRevLett.33.320
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1974HA59      Phys.Rev.Lett. 33, 1647 (1974)

J.C.Hardy, H.R.Andrews, J.S.Geiger, R.L.Graham, J.A.Macdonald, H.Schmeing

Fermi Beta Decay, A > 40: The Half-Lives of 46V, 50Mn, and 54Co

RADIOACTIVITY 46V, 50Mn, 54Co; measured T1/2; deduced ft.

doi: 10.1103/PhysRevLett.33.1647
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1974MA12      Phys.Rev. C9, 1694 (1974)

J.A.Macdonald, J.Cerny, J.C.Hardy, H.L.Harney, A.D.Bacher, G.R.Plattner

Analyzing Powers for Two-Nucleon Transfer Reactions in the 1p Shell

NUCLEAR REACTIONS 16O, 15N(p, t), (p, 3He), E=43.8 MeV; 13C(p, t), (p, 3He), E=49.6 MeV; measured σ(Et, E(3He), θ), A(θ). 14O, 13,14N, 11,13C, 11B deduced levels, L.

doi: 10.1103/PhysRevC.9.1694
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1973MA47      Phys.Lett. 47B, 237 (1973)

J.A.MacDonald, N.A.Jelley, J.Cerny

Analyzing Powers in 208Pb(p, t)206Pb Transitions

NUCLEAR REACTIONS 208Pb(polarized p, t), E=40 MeV; measured σ(Et, θ), A(θ). 206Pb deduced transitions.

doi: 10.1016/0370-2693(73)90719-3
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetT0293.


1970HA23      Phys.Rev.Lett. 25, 298 (1970)

J.C.Hardy, A.D.Bacher, G.R.Plattner, J.A.Macdonald, R.G.Sextro

Two-Nucleon-Transfer Reactions Induced by Polarized Protons

NUCLEAR REACTIONS 15N, 16O(polarized p, t), (polarized p, 3He), E=44 MeV; measured σ(θ), analyzing power(θ). 13C, 14O, 13N, 14N transitions deduced L.

doi: 10.1103/PhysRevLett.25.298
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1970MA45      Nucl.Phys. A156, 321 (1970)

J.A.Macdonald, H.D.Sharma

The β- Decay of 112Ag

RADIOACTIVITY 112Ag[from 235U(n, fission), 113Cd(γ, p)]; measured Eγ, Iγ, γγ-coin; deduced log ft. 112Cd deduced levels, J, π, γ-branching. Natural targets, Ge(Li) detector.

doi: 10.1016/0375-9474(70)90145-4
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