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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
Citations: PlumX Metrics

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 Vud 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
Citations: PlumX Metrics

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
Citations: PlumX Metrics

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.

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