NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = M.Pearson Found 60 matches. 2020NI05 Phys.Rev. C 102, 054327 (2020) H.Nishibata, K.Tajiri, T.Shimoda, A.Odahara, S.Morimoto, S.Kanaya, A.Yagi, H.Kanaoka, M.R.Pearson, C.D.P.Levy, M.Kimura, N.Tsunoda, T.Otsuka Structure of the neutron-rich nucleus 30Mg RADIOACTIVITY 30Na(β-), (β-n), (β-2n)[nuclear-spin-polarized radioactive beam of 28-keV 30Na from U(p, X), E=500 MeV at TRIUMF cyclotron]; measured Eγ, Iγ, γγ and βγ-coin, γγ(θ), β(θ) from spin-polarized 30Na source, isomer half-life by centroid shift of βγ(t) spectrum using eight sets of detector telescopes consisting of a coaxial high-purity Ge detector (HPGe) and thin plastic scintillator at ISAC-TRIUMF facility. 30Mg; deduced levels, J, π, bands, M1 scissors mode, multipolarities, asymmetry parameters for β transitions, β feedings, logft. 30Na; deduce J, π of the ground state, %β-n or Pn and %β-2n or P2n. Comparison with CHFB + LQRPA, AMD + GCM, and large-scale shell model with the EEdf1 interaction, and with previous experimental data. COMPILATION 30Mg; compiled levels, J, π from literature, and evaluation in the ENSDF database.
doi: 10.1103/PhysRevC.102.054327
2019NI04 Phys.Rev. C 99, 024322 (2019) H.Nishibata, S.Kanaya, T.Shimoda, A.Odahara, S.Morimoto, A.Yagi, H.Kanaoka, M.R.Pearson, C.D.P.Levy, M.Kimura, N.Tsunoda, T.Otsuka Structure of 31Mg: Shape coexistence revealed by β-ψ spectroscopy with spin-polarized 31Na RADIOACTIVITY 31Na(β-), (β-n)[from 238U(p, X), E=500 MeV, followed by high-resolution mass separation and spin-polarization of 31Na beam at ISAC-I-TRIUMF facility]; measured β spectra, polarization asymmetry of β particles emitted by the decay of 31Na, Eβ, Iβ, Eγ, Iγ, βγ(θ), γ(polarization), βγ- and γγ-coin, half-life of the 50-keV level in 31Mg by βγ(t) using thin plastic scintillators for β- detection and Ge detectors for γ detection at TRIUMF. 31Mg; deduced levels, J, π, %β-n and %β-2n, deformed rotational bands with Kπ=1/2+ and 1/2-. 31Mg(β-)[from 31Na β- decay]; observed γ rays. Comparison with previous experimental data, and with theoretical calculations. Systematics of energies of the lowest 1/2+, 3/2+, 3/2-, and 7/2- levels in 31Mg, 33Si, 35S, 37Ar, 39Ca. NUCLEAR STRUCTURE 31Mg; calculated levels, J, π using antisymmetrized molecular dynamics (AMD) plus generator coordinate method (GCM), and shell model with the EEdf1 interaction, microscopically derived from chiral effective field theory. Comparison with experimental data. COMPILATION 31Mg; compiled and discussed experimental and evaluated data for levels, J, π from 1984 to 2013.
doi: 10.1103/PhysRevC.99.024322
2019RE07 Phys.Rev. C 99, 065502 (2019) B.M.Rebeiro, S.Triambak, P.Z.Mabika, P.Finlay, C.S.Sumithrarachchi, G.Hackman, G.C.Ball, P.E.Garrett, C.E.Svensson, D.S.Cross, R.Dunlop, A.B.Garnsworthy, R.Kshetri, J.N.Orce, M.R.Pearson, E.R.Tardiff, H.Al Falou, R.A.E.Austin, R.Churchman, M.K.Djongolov, R.D'Entremont, C.Kierans, L.Milovanovic, S.O'Hagan, S.Reeve, S.K.L.Sjue, S.J.Williams, S.S.Ntshangase Precise branching ratio measurements in 19Ne β decay and fundamental tests of the weak interaction RADIOACTIVITY 19Ne(β+)[from C, Si(p, X), E=500 MeV at TRIUMF facility]; measured Eγ, Iγ, electron spectra, βγ-coin using the 8π γ-ray spectrometer and SCEPTAR detector array at TRIUMF-ISAC facility. 19F; deduced levels, β+-branching ratios, precise β branch for superallowed ground-state to ground-state branch, Ft values, Vud element of the CKM quark-mixing matrix. Comparison with previous experimental results. Discussed implications for testing weak interaction symmetries.
doi: 10.1103/PhysRevC.99.065502
2017MI19 Phys.Rev. C 96, 054314 (2017) A.J.Miller, K.Minamisono, D.M.Rossi, R.Beerwerth, B.A.Brown, S.Fritzsche, D.Garand, A.Klose, Y.Liu, B.Maass, P.F.Mantica, P.Muller, W.Nortershauser, M.R.Pearson, C.Sumithrarachchi First determination of ground state electromagnetic moments of 53Fe NUCLEAR MOMENTS 53Fe; measured hyperfine spectrum using bunched-beam collinear laser spectroscopy at the BECOLA facility at NSCL-MSU; deduced magnetic dipole moment, and electric quadrupole moment. Radioactive ion beam of 53Fe produced in 9Be(58Ni, X), E=160 MeV/nucleon, followed by fragment separation using A1900 separator. 53Co; deduced magnetic dipole moment from mirror magnetic moment systematics. Calculated electric field gradient using multiconfiguration Dirac-Fock (MCDF) method to deduce quadrupole moment. Comparison with shell-model calculations using the GXPF1A effective interaction in a full fp shell model space.
doi: 10.1103/PhysRevC.96.054314
2017NI02 Phys.Lett. B 767, 81 (2017) H.Nishibata, T.Shimoda, A.Odahara, S.Morimoto, S.Kanaya, A.Yagi, H.Kanaoka, M.R.Pearson, C.D.P.Levy, M.Kimura Shape coexistence in the N = 19 neutron-rich nucleus 31Mg explored by β-γ spectroscopy of spin-polarized 31Na RADIOACTIVITY 31Na(β-) [from U(p, X)31Na, E=500 MeV]; measured decay products, Eγ, Iγ; deduced level energies, J, π, branching ratios, rotational bands. Comparison with antisymmetrized molecular dynamics (AMD) plus generator coordinate method (GCM) calculations.
doi: 10.1016/j.physletb.2017.01.049
2016CA02 Prog.Part.Nucl.Phys. 86, 127 (2016) P.Campbell, I.D.Moore, M.R.Pearson Laser spectroscopy for nuclear structure physics
doi: 10.1016/j.ppnp.2015.09.003
2016MI27 Phys.Rev.Lett. 117, 252501 (2016) K.Minamisono, D.M.Rossi, R.Beerwerth, S.Fritzsche, D.Garand, A.Klose, Y.Liu, B.Maass, P.F.Mantica, A.J.Miller, P.Muller, W.Nazarewicz, W.Nortershauser, E.Olsen, M.R.Pearson, P.-G.Reinhard, E.E.Saperstein, C.Sumithrarachchi, S.V.Tolokonnikov Charge Radii of Neutron Deficient 52, 53Fe Produced by Projectile Fragmentation NUCLEAR MOMENTS 52,53,56Fe; measured hyperfine spectra; deduced differential mean-square charge radii. Bunched-beam collinear laser spectroscopy, comparison with the nuclear density functional theory with Fayans and Skyrme energy density functionals calculations.
doi: 10.1103/PhysRevLett.117.252501
2015HI02 Phys.Rev. C 91, 024328 (2015) Y.Hirayama, T.Shimoda, H.Miyatake, H.Izumi, A.Hatakeyama, K.P.Jackson, C.D.P.Levy, M.Pearson, M.Yagi, H.Yano Unexpected spin-parity assignments of the excited states in 9Be RADIOACTIVITY 9Li(β-), (β-n)[30.5 keV 9Li beam polarized by collinear optical pumping technique]; measured Eβ, E(n) by TOF, I(n), nβ-coin, β-decay asymmetry spectrum as function of TOF at TRIUMF-ISAC facility. 9Be; deduced levels, J, π, β-delayed neutron transitions, asymmetry parameter for each β transition, Iβ, logft. Comparison with previous experimental data, and theoretical shell-model calculations. 5He, 8Be; deduced neutron branching ratios from states in 9Be through n+8Be and α+5He channels to 0+ and first 2+ states in 8Be and 3/2- state in 5He.
doi: 10.1103/PhysRevC.91.024328
2015MA30 Phys.Rev. C 91, 045504 (2015) S.Malbrunot-Ettenauer, T.Brunner, U.Chowdhury, A.T.Gallant, V.V.Simon, M.Brodeur, A.Chaudhuri, E.Mane, M.C.Simon, C.Andreoiu, G.Audi, J.R.C.Lopez-Urrutia, P.Delheij, G.Gwinner, A.Lapierre, D.Lunney, M.R.Pearson, R.Ringle, J.Ullrich, J.Dilling Penning trap mass measurements utilizing highly charged ions as a path to benchmark isospin-symmetry breaking corrections in 74Rb ATOMIC MASSES 74Ga, 74,75,76,85,87Rb; measured cyclotron frequency ratios of Rb isotopes in q=8-12 charge states relative to that of 85Rb using TITAN at TRIUMF-ISAC facility; deduced mass excesses and compared to previous experimental data. RADIOACTIVITY 74Rb(EC); deduced Q value and logft using mass excess from current and previous studies. Systematics of superallowed β decays of 42Sc, 46V, 50Mn, 54Co, 62Ga, 74Rb. Discussed test of the isospin-symmetry correction term δC. NUCLEAR REACTIONS Nb(p, X)74Rb/75Rb/76Rb/78Rb/74Ga, E=500 MeV; measured yields, TOF ion-cyclotron resonances for highly-charged Rb isotopes, TOF of ions with reference to highly-charged 85Rb isotope using TITAN at TRIUMF-ISAC facility.
doi: 10.1103/PhysRevC.91.045504
2015PR03 Eur.Phys.J. A 51, 23 (2015) T.J.Procter, J.A.Behr, J.Billowes, F.Buchinger, B.Cheal, J.E.Crawford, J.Dilling, A.B.Garnsworthy, A.Leary, C.D.P.Levy, E.Mane, M.R.Pearson, O.Shelbaya, M.Stolz, W.Al Tamimi, A.Voss Direct observation of an isomeric state in 98Rb and nuclear properties of exotic rubidium isotopes measured by laser spectroscopy NUCLEAR REACTIONS U(p, x)Rb, E=500 MeV; measured Rb isotopes using TITAN mass trap or optical spectrum using laser spectroscopy. 98Rb deduced isomeric state, hyperfine coefficients, isotope shifts. 75,76,78Rb deduced magnetic dipole moment, electric quadrupole moment, deformation, charge radii, isotopic shifts, g-factors. ATOMIC PHYSICS U(p, x)Rb, E=500 MeV; measured E(optical γ); deduced isotopic shifts, charge radii. Compared with published muonic and optical data.
doi: 10.1140/epja/i2015-15023-2
2015VO05 Phys.Rev. C 91, 044307 (2015) A.Voss, F.Buchinger, B.Cheal, J.E.Crawford, J.Dilling, M.Kortelainen, A.A.Kwiatkowski, A.Leary, C.D.P.Levy, F.Mooshammer, M.L.Ojeda, M.R.Pearson, T.J.Procter, W.Al Tamimi Nuclear moments and charge radii of neutron-deficient francium isotopes and isomers NUCLEAR MOMENTS 204,204m,205,206,206m,208Fr; measured optical fluorescence and hyperfine structure spectra using Collinear laser fluorescence spectroscopy technique at TRIUMF-ISAC facility; deduced spins, isotope shifts, hyperfine coupling constants, magnetic moments, charge radii, spectroscopic electric quadrupole moments, two isomeric states in 206Fr. Comparison with previous experimental results, and with theoretical calculations within the energy density functional (EDF) framework using Skyrme parametrization UNEDF0 and HFBTHO computer code for A=204-213 Fr isotopes. Activities of Fr produced in U(p, X), E=500 MeV reaction.
doi: 10.1103/PhysRevC.91.044307
2015ZH20 Phys.Rev.Lett. 115, 042501 (2015) J.Zhang, M.Tandecki, R.Collister, S.Aubin, J.A.Behr, E.Gomez, G.Gwinner, L.A.Orozco, M.R.Pearson, G.D.Sprouse for the FrPNC collaboration Hyperfine Anomalies in Fr: Boundaries of the Spherical Single Particle Model NUCLEAR MOMENTS 206,207,209,213,221Fr; measured fluorescence light, sideband frequency; deduced hyperfine splitting of the 7P1/2 state. Comparison with shell model calculations.
doi: 10.1103/PhysRevLett.115.042501
2014BE02 Hyperfine Interactions 225, 115 (2014) J.A.Behr, A.Gorelov, K.P.Jackson, M.R.Pearson, M.Anholm, T.Kong, R.S.Behling, B.Fenker, D.Melconian, D.Ashery, G.Gwinner TRINAT: measuring β-decay correlations with laser-trapped atoms
doi: 10.1007/s10751-013-0887-5
2014CO18 Phys.Rev. A 90, 052502 (2014), Erratum Phys.Rev. A 92, 019902 (2015) R.Collister, G.Gwinner, M.Tandecki, J.A.Behr, M.R.Pearson, J.Zhang, L.A.Orozco, S.Aubin, E.Gomez, for the FrPNC Collaboration Isotope shifts in francium isotopes 206-213Fr and 221Fr ATOMIC PHYSICS 206,207,208,209,210,211,212,213,221Fr; measured radio-frequency sidebands; deduced isotope shifts. Comparison with available data, theoretical calculations.
doi: 10.1103/PhysRevA.90.052502
2014KW01 Hyperfine Interactions 225, 143 (2014) A.A.Kwiatkowski, C.Andreoiu, J.C.Bale, T.Brunner, A.Chaudhuri, U.Chowdhury, P.Delheij, S.Ettenauer, D.Frekers, A.T.Gallant, A.Grossheim, G.Gwinner, F.Jang, A.Lennarz, T.Ma, E.Mane, M.R.Pearson, B.E.Schultz, M.C.Simon, V.V.Simon, J.Dilling TITAN: An ion trap facility for on-line mass measurement experiments
doi: 10.1007/s10751-013-0892-8
2014KW04 Phys.Rev. C 89, 045502 (2014) A.A.Kwiatkowski, T.Brunner, J.D.Holt, A.Chaudhuri, U.Chowdhury, M.Eibach, J.Engel, A.T.Gallant, A.Grossheim, M.Horoi, A.Lennarz, T.D.Macdonald, M.R.Pearson, B.E.Schultz, M.C.Simon, R.A.Senkov, V.V.Simon, K.Zuber, J.Dilling New determination of double-β-decay properties on 48Ca High-precision Qββ-value measurement and improved nuclear matrix element calculations ATOMIC MASSES 48Ca, 48Ti; measured cyclotron-frequencies, resonances using TITAN system consisting of radio frequency quadrupole (RFQ) beam cooler and buncher, an electron beam ion trap (EBIT), and a Penning trap (MPET) at ISAC-TRIUMF facility; deduced Q value for double β decay of 48Ti. Comparison with previous measurements and atomic mass evaluations (AME-2003 and AME-2012). RADIOACTIVITY 48Ca(2β-); measured precise Q-value using TITAN system at ISAC-TRIUMF facility; calculated ββ nuclear matrix element by including effects of levels outside the valence space in a shell-model; discussed case for a new experiment on double-beta decay of 48Ca.
doi: 10.1103/PhysRevC.89.045502
2014LE02 Hyperfine Interactions 225, 157 (2014) A.Lennarz, T.Brunner, C.Andreoiu, A.Chaudhuri, U.Chowdhury, P.Delheij, J.Dilling, S.Ettenauer, D.Frekers, A.T.Gallant, A.Grossheim, F.Jang, A.A.Kwiatkowski, T.Ma, E.Mane, M.R.Pearson, B.E.Schultz, M.C.Simon, V.V.Simon Electron-capture branching ratio measurements of odd-odd intermediate nuclei in double-beta decay at the TITAN facility RADIOACTIVITY 116In(β-), (EC); measured decay products, Eγ, Iγ, X-rays; deduced isomers, energy levels, J, π. Comparison with available data.
doi: 10.1007/s10751-013-0893-7
2014SH01 Hyperfine Interactions 225, 183 (2014) T.Shimoda, K.Tajiri, K.Kura, A.Odahara, M.Suga, Y.Hirayama, N.Imai, H.Miyatake, M.Pearson, C.D.P.Levy, K.P.Jackson, R.Legillon, C.Petrache, T.Fukuchi, N.Hamatani, T.Hori, M.Kazato, Y.Kenmoku, T.Masue, H.Nishibata, T.Suzuki, A.Takashima, R.Yokoyama Nuclear structure explored by β-delayed decay spectroscopy of spin-polarized radioactive nuclei at TRIUMF ISAC-1 RADIOACTIVITY 29,30Na(β-); measured decay products, Eγ, Iγ; deduced energy levels, J, π. Comparison with available data.
doi: 10.1007/s10751-013-0895-5
2014SM01 Phys.Rev. C 89, 024602 (2014) D.Smalley, F.Sarazin, F.M.Nunes, B.A.Brown, P.Adsley, H.Al Falou, C.Andreoiu, B.Baartman, G.C.Ball, J.C.Blackmon, H.C.Boston, W.N.Catford, S.Chagnon-Lessard, A.Chester, R.M.Churchman, D.S.Cross, C.Aa.Diget, D.Di Valentino, S.P.Fox, B.R.Fulton, A.Garnsworthy, G.Hackman, U.Hager, R.Kshetri, J.N.Orce, N.A.Orr, E.Paul, M.Pearson, E.T.Rand, J.Rees, S.Sjue, C.E.Svensson, E.Tardiff, A.Diaz Varela, S.J.Williams, S.Yates Two-neutron transfer reaction mechanisms in 12C(6He, 4He)14C using a realistic three-body 6He model NUCLEAR REACTIONS 12C(6He, 6He), (6He, 6He'), E=30 MeV; measured 6He spectra, σ(θ); deduced optical potential parameters. 12C(6He, α)14C, E=30 MeV; measured Eα, Iα, σ(θ) using SHARC charged-particle detector and TIGRESS γ-detection arrays at ISAC-II-TRIUMF facility. 14C; deduced levels, J, π. Low energy elastic and inelastic scattering, and transfer reactions. Comparison with DWBA calculations including realistic three-body model, and shell-model calculations. Discussed higher-order effects in the reaction mechanism.
doi: 10.1103/PhysRevC.89.024602
2014VO01 J.Phys.(London) G41, 015104 (2014) A.Voss, M.R.Pearson, F.Buchinger, J.E.Crawford, R.F.Kiefl, C.D.P.Levy, W.A.MacFarlane, E.Mane, G.D.Morris, O.T.J.Shelbaya, Q.Song, D.Wang High precision measurement of the 11Li and 9Li quadrupole moment ratio using zero-field β-NQR NUCLEAR MOMENTS 9,11Li; measured RF frequency; deduced electric quadrupole moments ratio. Nuclear quadrupole resonance technique, TRIUMF-ISAC.
doi: 10.1088/0954-3899/41/1/015104
2013VO10 Phys.Rev.Lett. 111, 122501 (2013) A.Voss, M.R.Pearson, J.Billowes, F.Buchinger, B.Cheal, J.E.Crawford, A.A.Kwiatkowski, C.D.P.Levy, O.Shelbaya First Use of High-Frequency Intensity Modulation of Narrow-Linewidth Laser Light and Its Application in Determination of 206, 205, 204Fr Ground-State Properties NUCLEAR MOMENTS 204,205,206Fr; measured hyperfine structure; deduced nuclear ground-state J, mean-square charge radii, nuclear magnetic moments. Comparison with available data, AME2012.
doi: 10.1103/PhysRevLett.111.122501
2012GA15 Phys.Rev. C 85, 044311 (2012) A.T.Gallant, M.Brodeur, T.Brunner, U.Chowdhury, S.Ettenauer, V.V.Simon, E.Mane, M.C.Simon, C.Andreoiu, P.Delheij, G.Gwinner, M.R.Pearson, R.Ringle, J.Dilling Highly charged ions in Penning traps: A new tool for resolving low-lying isomeric states ATOMIC MASSES 78,78mRb; measured time-of-flight spectra, frequency ratios relative to 85Rb using TRIUMF-TITAN facility; deduced mass excess of ground state and isomer in 78Rb. Comparison with AME-2003 and ENSDF.
doi: 10.1103/PhysRevC.85.044311
2012GA29 Phys.Rev.Lett. 109, 032506 (2012) A.T.Gallant, J.C.Bale, T.Brunner, U.Chowdhury, S.Ettenauer, A.Lennarz, D.Robertson, V.V.Simon, A.Chaudhuri, J.D.Holt, A.A.Kwiatkowski, E.Mane, J.Menendez, B.E.Schultz, M.C.Simon, C.Andreoiu, P.Delheij, M.R.Pearson, H.Savajols, A.Schwenk, J.Dilling New Precision Mass Measurements of Neutron-Rich Calcium and Potassium Isotopes and Three-Nucleon Forces ATOMIC MASSES 51,52Ca, 51K; measured TOF-ICR resonances, average frequency ratios; deduced masses. Comparison with available data. TRIUMF TITAN trap, comparison with available data, KB3G and GXPF1A effective interactions.
doi: 10.1103/PhysRevLett.109.032506
2012GO29 J.Phys.:Conf.Ser. 387, 012004 (2012) E.Gomez, S.Aubin, R.Collister, J.A.Behr, G.Gwinner, L.A.Orozco, M.R.Pearson, M.Tandecki, D.Sheng, J.Zhang The FrPNC Experiment, weak interaction studies in Francium at TRIUMF
doi: 10.1088/1742-6596/387/1/012004
2012KU11 Phys.Rev. C 85, 034310 (2012) K.Kura, K.Tajiri, T.Shimoda, A.Odahara, T.Hori, M.Kazato, T.Masue, M.Suga, A.Takashima, T.Suzuki, T.Fukuchi, Y.Hirayama, N.Imai, H.Miyatake, M.Pearson, C.D.P.Levy, K.P.Jackson Structure of 28Mg studied by β-decay spectroscopy of spin-polarized 28Na: The first step of systematic studies on neutron-rich Mg isotopes RADIOACTIVITY 28Na[from Ta(p, X), E=500 MeV](β-); measured Eγ, Iγ, Iβ, βγ-, γγ-coin, β asymmetry at ISAC, TRIUMF facility, spin polarized 28Na. 28Mg; deduced levels, J, π, transition probabilities, β feedings, logft. Comparison with previous studies, and shell model predictions with USD, USDA, USDB Hamiltonian calculations. Discussed shell evolution in the region of the N=20 island of inversion.
doi: 10.1103/PhysRevC.85.034310
2012SH29 Prog.Theor.Phys.(Kyoto), Suppl. 196, 310 (2012) T.Shimoda, K.Tajiri, A.Odahara, M.Suga, N.Hamatani, H.Nishibata, J.Takatsu, R.Yokoyama, Y.Hirayama, N.Imai, H.Miyatake, M.Pearson, C.D.P.Levy, K.P.Jackson, R.Leguillon, C.Petrache Structure of Mg Isotope Studied by β-Decay Spectroscopy of Spin-Polarized Na Isotopes - Shape Coexistence in 30Mg - RADIOACTIVITY 30Na(β-); measured decay products, Eγ, Iγ; deduced level scheme, energies, J, π. Comparison with available data.
doi: 10.1143/PTPS.196.310
2012SI10 Phys.Rev. C 85, 064308 (2012) V.V.Simon, T.Brunner, U.Chowdhury, B.Eberhardt, S.Ettenauer, A.T.Gallant, E.Mane, M.C.Simon, P.Delheij, M.R.Pearson, G.Audi, G.Gwinner, D.Lunney, H.Schatz, J.Dilling Penning-trap mass spectrometry of highly charged, neutron-rich Rb and Sr isotopes in the vicinity of A ≈ 100 ATOMIC MASSES 94,97,98Rb, 94,97,98,99Sr; measured time-of-flight and cyclotron frequencies using (TOF-ICR) method with the Penning-trap mass spectrometer TITAN at TRIUMF-ISAC facility; deduced mass excesses. Frequencies ratios measured with reference to 85Rb. Z=36-44, N=55-65; systematics of S(2n) values. Calculated r process abundances as a function of mass number. Discussed astrophysical implications. Comparisons with previous measurements and AME-2003 evaluation.
doi: 10.1103/PhysRevC.85.064308
2012TR06 Phys.Rev.Lett. 109, 042301 (2012) S.Triambak, P.Finlay, C.S.Sumithrarachchi, G.Hackman, G.C.Ball, P.E.Garrett, C.E.Svensson, D.S.Cross, A.B.Garnsworthy, R.Kshetri, J.N.Orce, M.R.Pearson, E.R.Tardiff, H.Al Falou, R.A.E.Austin, R.Churchman, M.K.Djongolov, R.D'Entremont, C.Kierans, L.Milovanovic, S.O'Hagan, S.Reeve, S.K.L.Sjue, S.J.Williams High-Precision Measurement of the 19Ne Half-Life and Implications for Right-Handed Weak Currents RADIOACTIVITY 19Ne(EC); measured reaction products, Eγ, Iγ; deduced T1/2, right-hand interaction. Comparison with available data.
doi: 10.1103/PhysRevLett.109.042301
2011ET01 Phys.Rev.Lett. 107, 272501 (2011) S.Ettenauer, M.C.Simon, A.T.Gallant, T.Brunner, U.Chowdhury, V.V.Simon, M.Brodeur, A.Chaudhuri, E.Mane, C.Andreoiu, G.Audi, J.R.C.Lopez-Urrutia, P.Delheij, G.Gwinner, A.Lapierre, D.Lunney, M.R.Pearson, R.Ringle, J.Ullrich, J.Dilling First Use of High Charge States for Mass Measurements of Short-Lived Nuclides in a Penning Trap ATOMIC MASSES 74,75,76Rb, 74Ga; measured TOF ion-cyclotron resonances; deduced masses. Penning trap measurements, comparison with mass evaluation.
doi: 10.1103/PhysRevLett.107.272501
2011MA66 Phys.Rev.Lett. 107, 212502 (2011) E.Mane, A.Voss, J.A.Behr, J.Billowes, T.Brunner, F.Buchinger, J.E.Crawford, J.Dilling, S.Ettenauer, C.D.P.Levy, O.Shelbaya, M.R.Pearson First Experimental Determination of the Charge Radius of 74Rb and Its Application in Tests of the Unitarity of the Cabibbo-Kobayashi-Maskawa Matrix NUCLEAR MOMENTS 74,75,76,78Rb; measured hyperfine coupling constants; deduced nuclear spins, log ft uncertainty.
doi: 10.1103/PhysRevLett.107.212502
2011VO08 J.Phys.(London) G38, 075102 (2011) A.Voss, M.R.Pearson, J.Billowes, F.Buchinger, K.H.Chow, J.E.Crawford, M.D.Hossein, R.F.Kiefl, C.D.P.Levy, W.A.MacFarlane, E.Mane, G.D.Morris, T.J.Parolin, H.Saadaoui, Z.Salman, M.Smadella, Q.Song, D.Wang Nuclear electric quadrupole moment of 9Li using zero-field β-detected NQR NUCLEAR MOMENTS 8,9Li; measured β-NQR spectra; deduced electric quadrupole moments.
doi: 10.1088/0954-3899/38/7/075102
2011VO17 J.Phys.:Conf.Ser. 312, 092063 (2011) A.Voss, M.R.Pearson, J.Billowes, F.Buchinger, K.H.Chow, J.E.Crawford, M.D.Hossein, R.F.Kiefl, C.D.P.Levy, W.A.MacFarlane, E.Mane, G.D.Morris, T.J.Parolin, H.Saadaoui, Z.Salman, M.Smadella, Q.Song, D.Wang The development of pure β-NQR techniques for measurements of nuclear ground state quadrupole moments in lithium isotopes NUCLEAR MOMENTS 8,9,11Li; measured polarized ion beams implanted into crystal with E=28 keV, resonance frequency; deduced (ratio of) quadrupole moments using zero-field β-NQR (β-detected nuclear quadrupole resonance).
doi: 10.1088/1742-6596/312/9/092063
2010ET01 Phys.Rev. C 81, 024314 (2010) S.Ettenauer, M.Brodeur, T.Brunner, A.T.Gallant, A.Lapierre, R.Ringle, M.R.Pearson, P.Delheij, J.Lassen, D.Lunney, J.Dilling Precision ground state mass of 12Be and an isobaric multiplet mass equation (IMME) extrapolation for 2+ and 02++ states in the T=2, A=12 multiplet ATOMIC MASSES 12Be; measured mass excess using Penning trap mass spectrometer TITAN at TRIUMF. Comparison with previous measurements and evaluations. Analyzed IMME for the lowest lying isospin T=2 multiplet in the A=12 system.
doi: 10.1103/PhysRevC.81.024314
2009PI01 Phys.Rev. C 79, 015501 (2009) J.R.A.Pitcairn, D.Roberge, A.Gorelov, D.Ashery, O.Aviv, J.A.Behr, P.G.Bricault, M.Dombsky, J.D.Holt, K.P.Jackson, B.Lee, M.R.Pearson, A.Gaudin, B.Dej, C.Hohr, G.Gwinner, D.Melconian Tensor interaction constraints from β-decay recoil spin asymmetry of trapped atoms RADIOACTIVITY 80Rb(β+); measured daughter nucleus recoil angular distributions, recoil asymmetry; deduced tensor interaction constraints. Spin-polarized nucleus. Comparison with standard model predictions.
doi: 10.1103/PhysRevC.79.015501
2008LE12 Phys.Rev.Lett. 100, 192504 (2008) K.G.Leach, C.E.Svensson, G.C.Ball, J.R.Leslie, R.A.E.Austin, D.Bandyopadhyay, C.Barton, E.Bassiachvilli, S.Ettenauer, P.Finlay, P.E.Garrett, G.F.Grinyer, G.Hackman, D.Melconian, A.C.Morton, S.Mythili, O.Newman, C.J.Pearson, M.R.Pearson, A.A.Phillips, H.Savajols, M.A.Schumaker, J.Wong Internal γ Decay and the Superallowed Branching Ration for the β+ Emitter 38Km RADIOACTIVITY 38mK(β+), 38mCl(β+);measured positron spectra, Eγ, Iγ, βγ-coin, T1/2; deduced Ft for superallowed decay, comparison with other superallowed decays.
doi: 10.1103/PhysRevLett.100.192504
2008RY03 Phys.Rev.Lett. 101, 012501 (2008) V.L.Ryjkov, M.Brodeur, T.Brunner, M.Smith, R.Ringle, A.Lapierre, F.Ames, P.Bricault, M.Dombsky, P.Delheij, D.Lunney, M.R.Pearson, J.Dilling Direct Mass Measurement of the Four-Neutron Halo Nuclide 8He ATOMIC MASSES 8He; measured mass using a penning trap.
doi: 10.1103/PhysRevLett.101.012501
2008TA11 Phys.Rev. C 77, 052501 (2008) E.R.Tardiff, J.A.Behr, T.E.Chupp, K.Gulyuz, R.S.Lefferts, W.Lorenzon, S.R.Nuss-Warren, M.R.Pearson, N.Pietralla, G.Rainovski, J.F.Sell, G.D.Sprouse Polarization and relaxation rates of radon RADIOACTIVITY 209Fr(EC) [from 197Au(16O, 4n), E=91 MeV]; measured Eγ, Iγ, spin exchange polarization, quadrupole-dominated wall relaxationrate, dependence of γ-ray anisotropies on temperature.
doi: 10.1103/PhysRevC.77.052501
2007ME19 Phys.Lett. B 649, 370 (2007) D.Melconian, J.A.Behr, D.Ashery, O.Aviv, P.G.Bricault, M.Dombsky, S.Fostner, A.Gorelov, S.Gu, V.Hanemaayer, K.P.Jackson, M.R.Pearson, I.Vollrath Measurement of the neutrino asymmetry in the β decay of laser-cooled, polarized 37K
doi: 10.1016/j.physletb.2007.04.047
2007TA17 Nucl.Instrum.Methods Phys.Res. A579, 472 (2007) E.R.Tardiff, T.E.Chupp, W.Lorenzon, S.R.Nuss-Warren, J.A.Behr, M.R.Pearson, K.Gulyuz, R.S.Lefferts, N.Pietralla, G.Rainovski, J.F.Sell, G.D.Sprouse Polarization and relaxation of 209Rn RADIOACTIVITY 209Rn(EC); measured Eγ, Iγ, polarization and relaxation.
doi: 10.1016/j.nima.2007.04.105
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
2006HY02 Phys.Rev.Lett. 97, 102501 (2006) B.Hyland, C.E.Svensson, G.C.Ball, J.R.Leslie, T.Achtzehn, D.Albers, C.Andreoiu, P.Bricault, R.Churchman, D.Cross, M.Dombsky, P.Finlay, P.E.Garrett, C.Geppert, G.F.Grinyer, G.Hackman, V.Hanemaayer, J.Lassen, J.P.Lavoie, D.Melconian, A.C.Morton, C.J.Pearson, M.R.Pearson, A.A.Phillips, M.A.Schumaker, M.B.Smith, I.S.Towner, J.J.Valiente-Dobon, K.Wendt, E.F.Zganjar Precision Branching Ratio Measurement for the Superallowed β+ Emitter 62Ga and Isospin-Symmetry-Breaking Corrections in A ≥ 62 Nuclei RADIOACTIVITY 62Ga(β+) [from Zr(p, X)]; measured Eγ, Iγ, βγ-coin; deduced superallowed Fermi branching ratio, ft. 62Zn deduced levels, J, π. Comparison with model predictions.
doi: 10.1103/PhysRevLett.97.102501
2006PH01 Phys.Rev. C 74, 027302 (2006) A.A.Phillips, C.Andreoiu, G.C.Ball, D.Bandyopadhyay, J.A.Behr, T.E.Chupp, P.Finlay, P.E.Garrett, G.F.Grinyer, G.Hackman, M.E.Hayden, B.Hyland, S.R.Nuss-Warren, M.R.Pearson, M.A.Schumaker, M.B.Smith, C.E.Svensson, E.R.Tardiff, J.J.Valiente-Dobon, T.Warner Half-life of 120Xe RADIOACTIVITY 120Cs, 120Xe, 120I(β+), (EC); measured Eγ, Iγ, T1/2.
doi: 10.1103/PhysRevC.74.027302
2006SA52 Hyperfine Interactions 171, 181 (2006) R.Sanchez, W.Nortershauser, A.Dax, G.Ewald, S.Gotte, R.Kirchner, H.-J.Kluge, T.Kuhl, A.Wojtaszek, B.A.Bushaw, G.W.F.Drake, Z.-C.Yan, C.Zimmermann, D.Albers, J.Behr, P.Bricault, J.Dilling, M.Dombsky, J.Lassen, C.D.P.Levy, M.R.Pearson, E.J.Prime, V.Ryjkov Nuclear charge radius of 11Li NUCLEAR MOMENTS 11Li; measured optical isotope shift; deduced charge radius. Laser spectroscopy.
doi: 10.1007/s10751-007-9507-6
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
2005BE63 Eur.Phys.J. A 25, Supplement 1, 685 (2005) J.A.Behr, A.Gorelov, D.Melconian, M.Trinczek, W.P.Alford, D.Ashery, P.G.Bricault, L.Courneyea, J.M.D'Auria, J.Deutsch, J.Dilling, M.Dombsky, P.Dube, F.Gluck, S.Gryb, S.Gu, O.Hausser, K.P.Jackson, B.Lee, A.Mills, E.Paradis, M.Pearson, R.Pitcairn, E.Prime, D.Roberge, T.B.Swanson Weak interaction symmetries with atom traps
doi: 10.1140/epjad/i2005-06-097-9
2005GO11 Phys.Rev.Lett. 94, 142501 (2005) A.Gorelov, D.Melconian, W.P.Alford, D.Ashery, G.Ball, J.A.Behr, P.G.Bricault, J.M.D'Auria, J.Deutsch, J.Dilling, M.Dombsky, P.Dube, J.Fingler, U.Giesen, F.Gluck, S.Gu, O.Hausser, K.P.Jackson, B.K.Jennings, M.R.Pearson, T.J.Stocki, T.B.Swanson, M.Trinczek Scalar Interaction Limits from the β-ν Correlation of Trapped Radioactive Atoms RADIOACTIVITY 38mK(β+); measured Eβ, recoil spectrum, (recoil)β-coin; deduced β-ν correlation parameter. Magneto-optical trap.
doi: 10.1103/PhysRevLett.94.142501
2004LE38 Nucl.Phys. A746, 206c (2004) C.D.P.Levy, R.Baartman, J.A.Behr, R.F.Kiefl, M.Pearson, R.Poutissou, A.Hatakeyama, Y.Hirayama The collinear laser beam line at ISAC
doi: 10.1016/j.nuclphysa.2004.09.118
2003ME08 Nucl.Instrum.Methods Phys.Res. B204, 540 (2003) D.Melconian, D.Ashery, G.Ball, J.A.Behr, P.Bricault, B.A.Brown, M.Dombsky, K.P.Jackson, S.Fostner, A.Gorelov, M.N.Groves, S.Gu, M.R.Pearson, I.S.Towner, M.Trinczek, I.Vollrath Measuring isospin mixing in 36Ar using a polarized, neutral atom trap RADIOACTIVITY 37K(EC); measured β-asymmetry from polarized source. Optical pumping, application to planned experiment discussed.
doi: 10.1016/S0168-583X(02)02129-8
2002SP02 Eur.Phys.J. A 13, 239 (2002) G.D.Sprouse, S.Aubin, E.Gomez, J.S.Grossman, L.A.Orozco, M.R.Pearson, M.True Atomic Probes of Electromagnetic and Weak Interactions with Trapped Radioactive Atoms NUCLEAR MOMENTS 208,209,210,211,212Fr; analyzed hfs, radii. Trapped radioactive atoms.
doi: 10.1007/s10050-002-8749-6
2002SP04 Nucl.Phys. A701, 597c (2002) G.D.Sprouse, R.P.Fliller III, J.S.Grossman, L.A.Orozco, M.R.Pearson Traps for Neutral Radioactive Atoms NUCLEAR MOMENTS 208,209,210,211,212Fr; measured hfs. Laser trap.
doi: 10.1016/S0375-9474(01)01652-9
2001GO30 Nucl.Phys. A688, 349c (2001) S.Goriely, M.Pearson, F.Tondeur At Last a Hartree-Fock + BCS Mass Table NUCLEAR STRUCTURE Z=8-120; calculated mass, deformation parameters, neutron and proton separation energies. Comparison with data.
doi: 10.1016/S0375-9474(01)00725-4
2000GR20 Phys.Scr. T86, 16 (2000) J.S.Grossman, L.A.Orozco, M.R.Pearson, G.D.Sprouse Spectroscopy of Francium Isotopes NUCLEAR MOMENTS 208,209,210,211,212Fr; measured hfs; deduced nuclear magnetization. Trapped ions.
doi: 10.1238/Physica.Topical.086a00016
2000GR25 Phys.Rev. A62, 052507 (2000) J.M.Grossman, R.P.Fliller III, T.E.Mehlstaubler, L.A.Orozco, M.R.Pearson, G.D.Sprouse, W.Z.Zhao Energies and Hyperfine Splittings of the 7D Levels of Atomic Francium NUCLEAR MOMENTS 210Fr; measured hfs. Optical double-resonance spectroscopy.
doi: 10.1103/PhysRevA.62.052507
2000LI52 Hyperfine Interactions 129, 109 (2000) M.Lindroos, J.Billowes, C.Broude, G.Goldring, H.Haas, M.Hass, L.Mueller, M.R.Pearson, L.Weissman Magnetic moments of mirror nuclei with tilted-foil polarization NUCLEAR MOMENTS 23Mg; measured β asymmetry and NMR resonance for the ground state using the tilted-foil (TF) polarization and β-NMR techniques at the ISOLDE facility.
doi: 10.1023/A:1012690623076
2000PE30 J.Phys.(London) G26, 1829 (2000) M.R.Pearson, P.Campbell, K.Leerungnavarat, J.Billowes, I.S.Grant, M.Keim, J.Kilgallon, I.D.Moore, R.Neugart, M.Neuroth, S.Wilbert, and the ISOLDE Collaboration Nuclear Moments and Charge Radii of Bismuth Isotopes NUCLEAR MOMENTS 205,206,207,208,209,210,212,213Bi; measure hfs, isotope shifts; deduced μ, quadrupole moment. Comparison with Hg, Tl, Pb and Po isotopes and with Shell model calculations.
doi: 10.1088/0954-3899/26/12/307
1999GR15 Phys.Rev.Lett. 83, 935 (1999) J.S.Grossman, L.A.Orozco, M.R.Pearson, J.E.Simsarian, G.D.Sprouse, W.Z.Zhao Hyperfine Anomaly Measurements in Francium Isotopes and the Radial Distribution of Neutrons NUCLEAR MOMENTS 208,209,210,211,212Fr; measured hfs; deduced hyperfine anomaly, role of neutron radial distributions.
doi: 10.1103/PhysRevLett.83.935
1997CA39 J.Phys.(London) G23, 1141 (1997) P.Campbell, J.Billowes, E.C.A.Cochrane, J.L.Cooke, T.G.Cooper, P.Dendooven, D.E.Evans, I.S.Grant, J.A.R.Griffith, A.Honkanen, M.Huhta, M.Oinonen, M.R.Pearson, H.Penttila, J.R.Persson, D.S.Richardson, G.Tungate, P.D.Wheeler, L.Zybert, J.Aysto A Thirty Second Isomer in 171Hf NUCLEAR REACTIONS 170Yb(α, 3n), E=50 MeV; measured Iγ(t). 171mHf deduced T1/2. Ion guide online isotope seperator. RADIOACTIVITY 171mHf(IT) [from 170Yb(α, 3n), E=50 MeV]; measured Iγ(t); deduced T1/2. Ion guide online isotope seperator.
doi: 10.1088/0954-3899/23/9/014
1997CO26 J.Phys.(London) G23, L97 (1997) J.L.Cooke, J.Billowes, P.Campbell, E.C.A.Cochrane, T.G.Cooper, P.Dendooven, D.E.Evans, J.A.R.Griffith, I.S.Grant, A.Honkanen, M.Huhta, J.M.G.Levins, M.Oinonen, M.R.Pearson, H.Penttila, J.A.Persson, D.S.Richardson, G.Tungate, P.D.Wheeler, L.Zybert, J.Aysto First Measurement of Radioisotopes by Collinear Laser Spectroscopy at an Ion-Guide Separator NUCLEAR REACTIONS 238U(p, F), E=25 MeV; measured 112Rh yield vs electrode voltage, beam current. Molecular beam, ion-guide isotope separator, ion-photon coincidence. RADIOACTIVITY 140,142,144Ba [from 238U(p, F), E=25 MeV]; measured optical isotope shifts. Ion-guide isotope separator, collinear laser spectroscopy, ion-photon coincidence.
doi: 10.1088/0954-3899/23/11/002
1997LE19 J.Phys.(London) G23, 1145 (1997) J.M.G.Levins, J.Billowes, P.Campbell, M.R.Pearson The Quadrupole Moment of 26Al NUCLEAR MOMENTS 26Al; measured isotope shifts, hfs; deduced quadrupole moment. Atomic beam laser spectroscopy. Shell model comparison.
doi: 10.1088/0954-3899/23/9/015
1996CO04 J.Phys.(London) G22, 99 (1996) T.G.Cooper, J.Billowes, P.Campbell, M.R.Pearson The Nuclear Magnetic Moment of 26Al by Atomic Beam Laser Spectroscopy RADIOACTIVITY 26Al(β+), (EC); measured hfs; deduced μ. Atomic beam laser spectroscopy. Model comparison.
doi: 10.1088/0954-3899/22/1/008
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