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NSR database version of April 11, 2024.

Search: Author = P.A.Voytas

Found 13 matches.

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2018HU05      Phys.Rev. C 97, 054328 (2018)

M.Hughes, E.A.George, O.Naviliat-Cuncic, P.A.Voytas, S.Chandavar, A.Gade, X.Huyan, S.N.Liddick, K.Minamisono, S.V.Paulauskas, D.Weisshaar

Measurement of the ²⁰F half-life

RADIOACTIVITY ²⁰F(β^-)[from ⁹Be(²²Ne, X), E=150 MeV/nucleon followed by fragment analysis using A1900 fragment separator at NSCL-MSU]; measured γ radiation, β^-γ-coin, half-life of ²⁰F decay using four CsI(Na) detectors from the CAESAR array. Comparison with previous nine experimental values, and pointed out need for a new measurement using a method with different sources of systematic uncertainties, in order to resolve discrepancies in current data.

doi: 10.1103/PhysRevC.97.054328
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Data from this article have been entered in the XUNDL database. For more information, click here.

2016HU07      Hyperfine Interactions 237, 93 (2016)

X.Huyan, O.Naviliat-Cuncic, D.Bazin, A.Gade, M.Hughes, S.Liddick, K.Minamisono, S.Noji, S.V.Paulauskas, A.Simon, P.Voytas, D.Weisshaar

Toward a measurement of weak magnetism in ⁶He decay

RADIOACTIVITY ⁶He(β^-); measured decay products, Eβ, Iβ; deduced β-spectrum, precision for contribution due to the weak magnetism form factor.

doi: 10.1007/s10751-016-1303-8
Citations: PlumX Metrics

2015VO18      Phys.Rev. C 92, 065502 (2015)

P.A.Voytas, E.A.George, G.W.Severin, L.Zhan, L.D.Knutson

Measurement of the branching ratio for the β decay of ¹⁴O

RADIOACTIVITY ¹⁴O(EC), (β⁺)[from N(p, n), E=8 MeV]; measured Eβ, Iβ positron spectra using a superconducting magnetic spectrometer and a thick Si(Li) detector at the University of Wisconsin Nuclear Physics Laboratory; deduced β branching ratio and partial half-life for superallowed 0+ to 0+ Fermi decay to the first excited state of ¹⁴N, logft, Ft. Discussed impact on the determination of the V_ud element of the CKM matrix. Comparison with previous experimental measurements, and with evaluation of other superallowed 0+ to 0+ β transitions.

doi: 10.1103/PhysRevC.92.065502
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Data from this article have been entered in the XUNDL database. For more information, click here.

2014GE07      Phys.Rev. C 90, 065501 (2014)

E.A.George, P.A.Voytas, G.W.Severin, L.D.Knutson

Measurement of the shape factor for the β decay of ¹⁴O

RADIOACTIVITY ¹⁴O(β⁺)[from ¹⁴N(p, n), E=8 MeV]; measured Eγ, Iγ using BGO detector, Eβ, Iβ using a superconducting beta spectrometer at University of Wisconsin Nuclear Physics Laboratory; deduced statistical shape S(E) of the β⁺ spectrum for the 0+ to 1+ β transition as a function of the positron kinetic energy. Comparison with predictions from theoretical calculations. Relevance to test of conserved vector current (CVC) hypothesis.

doi: 10.1103/PhysRevC.90.065501
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Data from this article have been entered in the XUNDL database. For more information, click here.

2014SE12      Phys.Rev. C 89, 057302 (2014)

G.W.Severin, L.D.Knutson, P.A.Voytas, E.A.George

⁶⁶Ga ground state β spectrum

RADIOACTIVITY ⁶⁶Ga(β⁺), (EC)[from Zn(p, X), E=11 MeV from Wisconsin RDS-111 cyclotron]; measured E(β), I(β), Kurie plot, shape of the ground-state 0+ to 0+ Fermi β transition using a new iron-free superconducting β spectrometer at University of Wisconsin; deduced slope and precise endpoint energy. Monte Carlo simulations. Comparison with previous experimental results, and with evaluations.

doi: 10.1103/PhysRevC.89.057302
Citations: PlumX Metrics

2010SE16      Phys.Rev. C 82, 067301 (2010)

G.W.Severin, L.D.Knutson, P.A.Voytas, E.A.George

Half-life of ⁶⁶Ga

RADIOACTIVITY ⁶⁶Ga(β⁺)[from ⁶⁶Zn(p, n), E=7 MeV]; measured Eβ, Iβ, isotopic half-life. Comparison with previous studies and evaluations.

doi: 10.1103/PhysRevC.82.067301
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Data from this article have been entered in the XUNDL database. For more information, click here.

2002PY01      Phys.Rev.Lett. 88, 122501 (2002)

M.C.Pyle, A.Garcia, E.Tatar, J.Cox, B.K.Nayak, S.Triambak, B.Laughman, A.Komives, L.O.Lamm, J.E.Rolon, T.Finnessy, L.D.Knutson, P.A.Voytas

Revalidation of the Isobaric Multiplet Mass Equation

NUCLEAR REACTIONS ³²S(p, p), E=3.2-3.7 MeV; measured σ(E, θ). ³³Cl deduced resonance energy. Implications for isobaric multiplet mass equation discussed.

doi: 10.1103/PhysRevLett.88.122501
Citations: PlumX Metrics

2002VO01      Phys.Rev.Lett. 88, 012501 (2002)

P.A.Voytas, C.Ternovan, M.Galeazzi, D.McCammon, J.J.Kolata, P.Santi, D.Peterson, V.Guimaraes, F.D.Becchetti, M.Y.Lee, T.W.O'Donnell, D.A.Roberts, S.Shaheen

Direct Measurement of the L/K Ratio in ⁷Be Electron Capture

RADIOACTIVITY ⁷Be(EC) [from ³He(⁶Li, ⁷Be)]; measured X-ray spectra; deduced L/K capture ratio, possible in-medium effects. Cryogenic microcalorimeter.

doi: 10.1103/PhysRevLett.88.012501
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1997SC44      Nucl.Instrum.Methods Phys.Res. A390, 274 (1997); Erratum Nucl.Instrum.Methods Phys.Res. A399, 499 (1997)

J.E.Schewe, P.A.Voytas, P.A.Quin

Measurement of the Polarization-Asymmetry Correlation for ²¹Na with Novel Target and Polarimeter

RADIOACTIVITY ²¹Na(β⁺) [from ²⁰Ne(d, n)]; measured polarization-asymmetry correlation. Polarized source, optical pumping.

doi: 10.1016/S0168-9002(97)00383-5
Citations: PlumX Metrics

1996SI06      Phys.Rev.Lett. 76, 3522 (1996)

J.E.Simsarian, A.Ghosh, G.Gwinner, L.A.Orozco, G.D.Sprouse, P.A.Voytas

Magneto-Optic Trapping of ²¹⁰Fr

NUCLEAR REACTIONS ¹⁹⁷Au(¹⁸O, xn)²¹⁰Fr, E=100 MeV; measured Eα following ²¹⁰Fr decay; deduced ²¹⁰Fr atom production rate. Magneto-optic trapping.

doi: 10.1103/PhysRevLett.76.3522
Citations: PlumX Metrics

1996VO14      Hyperfine Interactions 97/98, 529 (1996)

P.A.Voytas, J.A.Behr, A.Ghosh, G.Gwinner, L.A.Orozco, J.E.Simsarian, G.D.Sprouse, F.Xu

Laser Traps for Radioactive Isotopes

NUCLEAR REACTIONS ¹⁹⁷Au(¹⁸O, xn)²⁰⁹Fr/²¹⁰Fr/²¹¹Fr, E=115 MeV; measured α-spectra following residual nuclei decay. Laser trapping of radioactive isotopes.

1996VO21      Nucl.Instrum.Methods Phys.Res. A374, 7 (1996)

P.A.Voytas, J.E.Schewe, P.A.Quin, L.W.Anderson

A Target for Producing Polarized ²¹Na by Optical Pumping

RADIOACTIVITY ²¹Na(β⁺) [from ²⁰Ne(d, n)]; measured asymmetry. Polarized source produced by optical pumping, gas ²⁰Ne target.

doi: 10.1016/0168-9002(96)00090-3
Citations: PlumX Metrics

1991MI18      Phys.Rev. C44, 1995 (1991)

M.A.Miller, P.A.Voytas, A.D.Roberts, P.A.Quin, W.Haeberli

Polarization Transfer in the ²³Na(p(pol), ²³Mg(pol))n, ³¹P(p(pol), ³¹S(pol))n, and ³⁵Cl(p(pol), ³⁵Ar(pol))n Reactions

NUCLEAR REACTIONS ³¹P(polarized p, n), E=6.38-9.1 MeV; ³⁵Cl(polarized p, n), E=7.27-10.29 MeV; ²³Na(polarized p, n), E ≈ 7 MeV; measured residual nucleus β⁺-decay parity violating asymmetry; deduced polarization transfer coefficient energy dependence. NaI, red phosphorous, Cl₂, CCL₄-(He) mixture targets.

RADIOACTIVITY ³¹S [from ³¹P(polarized p, n), E=6.38-9.1 MeV]; ³⁵Ar [from ³⁵Cl(polarized p, n), E=7.27-10.29 MeV]; ²³Mg [from ²³Na(polarized p, n), E ≈ 7 MeV]; measured β⁺-decay parity violating asymmetry.

doi: 10.1103/PhysRevC.44.1995
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0437.

Note: The following list of authors and aliases matches the search parameter P.A.Voytas: , P.A.VOYTAS