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NSR database version of May 20, 2024.

Search: Author = J.Byrne

Found 34 matches.

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2022BY01      Eur.Phys.J. A 58, 151 (2022)

J.Byrne, D.L.Worcester

The neutron lifetime anomaly: analysis of charge exchange and molecular reactions in a proton trap

RADIOACTIVITY 1NN(β-); analyzed available data; deduced that decay spectrum is strongly influenced by charge exchange, secondary molecular reactions and backscattering in the detector dead layer.

doi: 10.1140/epja/s10050-022-00786-8
Citations: PlumX Metrics


2016BA29      Phys.Rev.Lett. 116, 242501 (2016)

M.J.Bales, R.Alarcon, C.D.Bass, E.J.Beise, H.Breuer, J.Byrne, T.E.Chupp, K.J.Coakley, R.L.Cooper, M.S.Dewey, S.Gardner, T.R.Gentile, D.He, H.P.Mumm, J.S.Nico, B.O'Neill, A.K.Thompson, F.E.Wietfeldt, for the RDK II Collaboration

Precision Measurement of the Radiative β Decay of the Free Neutron

RADIOACTIVITY 1NN(β-); measured decay products, Eγ, Iγ, Eβ, Iβ, Ep, Ip; deduced photon energy spectrum from neutron radiative decay branching ratio and its uncertainties. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.116.242501
Citations: PlumX Metrics

Data from this article have been entered in the XUNDL database. For more information, click here.


2011DE25      J.Labelled Compd.Radiopharm. Supp.1., 54, S248 (2011)

T.R.DeGrado, J.P.Byrne, A.B.Packard, A.P.Belanger, S.Rangarajan, M.K.Pandey

A solution target approach for cyclotron production of 89Zr: Understanding and coping with in-target electrolysis

NUCLEAR REACTIONS 89Y(p, n), E=13 MeV; measured reaction products; deduced yields, feasibility for 89Zr production.


2010CO03      Phys.Rev. C 81, 035503 (2010)

R.L.Cooper, T.E.Chupp, M.S.Dewey, T.R.Gentile, H.P.Mumm, J.S.Nico, A.K.Thompson, B.M.Fisher, I.Kremsky, F.E.Wietfeldt, E.J.Beise, K.G.Kiriluk, J.Byrne, K.J.Coakley, C.Fu

Radiative β decay of the free neutron

RADIOACTIVITY 1n(β-); measured Eγ, Ep, E(e), peγ-coin; deduced branching ratio for radiative decay (inner bremsstrahlung) of neutron in 15-340 keV photon energy range. Monte-Carlo simulations of the spectra. Comparison with theoretical predictions.

doi: 10.1103/PhysRevC.81.035503
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2006NI13      Nature(London) 444, 1059 (2006)

J.S.Nico, M.S.Dewey, T.R.Gentile, H.P.Mumm, A.K.Thompson, B.M.Fisher, I.Kremsky, F.E.Wietfeldt, T.E.Chupp, R.L.Cooper, E.J.Beise, K.G.Kiriluk, J.Byrne, K.J.Coakley

Observation of the radiative decay mode of the free neutron

RADIOACTIVITY 1n(β-); measured Eγ, βγ-, (proton)γ-coin; deduced branching ratio for radiative decay.

doi: 10.1038/nature05390
Citations: PlumX Metrics


2005BY03      J.Res.Natl.Inst.Stand.Technol. 110, 395 (2005)

J.Byrne

Determination of the Electron-Antineutrino Angular Correlation Coefficient a0 in Unpolarized Neutron β-Decay

RADIOACTIVITY 1n(β-); measured recoil proton spectra; deduced electron-antineutrino angular correlation coefficient.

doi: 10.6028/jres.110.059
Citations: PlumX Metrics


2005BY04      J.Res.Natl.Inst.Stand.Technol. 110, 415 (2005)

J.Byrne, R.U.Khafizov, Yu A.Mostovoi, O.Rozhnov, V.A.Solovei, M.Beck, V.U.Kozlov, N.Severijns

Search for Radiative β-Decay of the Free Neutron

RADIOACTIVITY 1n(β-); measured Ep, Eβ, Eγ, pγ-, βγ-, pβ-coin; deduced upper limit for radiative decay branching ratio.

doi: 10.6028/jres.110.063
Citations: PlumX Metrics


2005CO14      J.Res.Natl.Inst.Stand.Technol. 110, 401 (2005)

B.Collett, R.Anderman, S.Balashov, F.B.Bateman, J.Byrne, M.S.Dewey, B.M.Fisher, L.Goldin, G.Jones, A.Komives, T.Konopka, M.Leuschner, Yu.Mostovoy, J.S.Nico, A.K.Thompson, C.Trull, F.E.Wietfeldt, R.Wilson, B.G.Yerozolimsky

Proposed Measurement of the Beta-Neutrino Correlation in Neutron Decay

doi: 10.6028/jres.110.060
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2005FI11      J.Res.Natl.Inst.Stand.Technol. 110, 421 (2005)

B.M.Fisher, F.E.Wietfeldt, M.S.Dewey, T.R.Gentile, J.S.Nico, A.K.Thompson, K.J.Coakley, E.J.Beise, K.G.Kiriluk, J.Byrne

Detecting the Radiative Decay Mode of the Neutron

doi: 10.6028/jres.110.064
Citations: PlumX Metrics


2005GL01      Eur.Phys.J. A 23, 135 (2005)

F.Gluck, S.Baessler, J.Byrne, M.G.D.van der Grinten, F.J.Hartmann, W.Heil, I.Konorov, G.Petzoldt, Yu.Sobolev, O.Zimmer

The neutron decay retardation spectrometer aSPECT: Electromagnetic design and systematic effects

doi: 10.1140/epja/i2004-10057-1
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2005WI15      Nucl.Instrum.Methods Phys.Res. A545, 181 (2005)

F.E.Wietfeldt, B.M.Fisher, C.Trull, G.L.Jones, B.Collet, L.Goldin, B.G.Yerozolimsky, R.Wilson, S.Balashov, Yu.Mostovoy, A.Komives, M.Leuschner, J.Byrne, F.B.Bateman, M.S.Dewey, J.S.Nico, A.K.Thompson

A method for an improved measurement of the electron-antineutrino correlation in free neutron beta decay

RADIOACTIVITY 1n(β-); calculated recoil proton spectrum, pβ-coin, asymmetry. New experimental technique with reduced uncertainty discussed.

doi: 10.1016/j.nima.2005.01.339
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2002BE79      Pisma Zh.Eksp.Teor.Fiz. 76, 392 (2002); JETP Lett. 76, 332 (2002)

M.Beck, J.Byrne, R.U.Khafizov, V.Yu.Kozlov, Yu.A.Mostovoi, O.V.Rozhnov, N.Severijns, V.A.Solovei

The Upper Limit of the Branching Ratio for Radiative Beta Decay of Free Neutrons

RADIOACTIVITY 1n(β-); measured radiative decay mode branching ratio upper limit.

doi: 10.1134/1.1525031
Citations: PlumX Metrics


2002BY02      J.Phys.(London) G28, 1325 (2002)

J.Byrne, P.G.Dawber, M.G.D.van der Grinten, C.G.Habeck, F.Shaikh, J.A.Spain, R.D.Scott, C.A.Baker, K.Green, O.Zimmer

Determination of the Electron-Antineutrino Angular Correlation Coefficient a0 and the Parameter |l| = |GA/GV| in Free Neutron β-Decay from Measurements of the Integrated Energy Spectrum of Recoil Protons Stored in an Ion Trap

RADIOACTIVITY 1n(β-); measured recoil proton spectra; deduced electron-antineutrino angular correlation coefficient. Cryogenic ion trap.

doi: 10.1088/0954-3899/28/6/314
Citations: PlumX Metrics


2001BY03      Europhys.Lett. 56, 633 (2001)

J.Byrne

Two-Body Decay of the Neutron: A possible test for the existence of right-handed weak currents

RADIOACTIVITY 1n(β-); calculated hyperfine levels for two-body decay to neutrino plus hydrogen atom, effects of right-handed weak currents.

doi: 10.1209/epl/i2001-00567-2
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2000DA01      Nucl.Instrum.Methods Phys.Res. A440, 543 (2000)

P.G.Dawber, J.Byrne, M.G.D.van der Grinten, C.Habeck, F.Shaikh, J.A.Spain, C.A.Baker, K.Green, R.D.Scott, O.Zimmer

Determination of the Electron-Antineutrino Correlation Coefficient a in Neutron β-Decay by Measurement of the Integrated Proton Spectrum

RADIOACTIVITY 1n(β-); measured proton spectra following decay. Method for determining electron-antineutrino correlation coefficient discussed.

doi: 10.1016/S0168-9002(99)01034-7
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2000ZI02      Nucl.Instrum.Methods Phys.Res. A440, 548 (2000)

O.Zimmer, J.Byrne, M.G.D.van der Grinten, W.Heil, F.Gluck

' aspect ' - A New Spectrometer for the Measurement of the Angular Correlation Coefficient a in Neutron Beta Decay

doi: 10.1016/S0168-9002(99)01035-9
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1996BY03      Europhys.Lett. 33, 187 (1996)

J.Byrne, P.G.Dawber, C.G.Habeck, S.J.Smidt, J.A.Spain, A.P.Williams

A Revised Value for the Neutron Lifetime Measured using a Penning Trap

RADIOACTIVITY 1n(β-); measured T1/2. Penning trap measurement.

doi: 10.1209/epl/i1996-00319-x
Citations: PlumX Metrics


1995BY02      Phys.Scr. T59, 311 (1995)

J.Byrne

On the Neutron Lifetime and the Weak Coupling Constants

RADIOACTIVITY 1n(β-); compiled, reviewed proton spectra T1/2, data; deduced weak coupling constants implications.

doi: 10.1088/0031-8949/1995/T59/043
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1994BY03      Nucl.Instrum.Methods Phys.Res. A349, 454 (1994)

J.Byrne, P.G.Dawber, S.R.Lee

An New Method for Determining the Electron-Antineutrino Angular Correlation Coefficient a in Neutron Beta Decay from the Spectrum of Recoil Protons Stored in a Charged Particle Trap

RADIOACTIVITY 1n(β-); analyzed, simulated proton 1D-, 3D-spectra; deduced new method to determine βν(θ) coefficient. Recoil protons stored in charged particle trap.

doi: 10.1016/0168-9002(94)91210-6
Citations: PlumX Metrics


1990BY05      Phys.Rev.Lett. 65, 289 (1990)

J.Byrne, P.G.Dawber, J.A.Spain, A.P.Williams, M.S.Dewey, D.M.Gilliam, G.L.Greene, G.P.Lamaze, R.D.Scott, J.Pauwels, R.Eykens, A.Lamberty

Measurement of Neutron Lifetime by Counting Trapped Protons

doi: 10.1103/PhysRevLett.65.289
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1989BY04      Nucl.Instrum.Methods Phys.Res. A284, 116 (1989)

J.Byrne, P.G.Dawber, J.A.Spain, M.S.Dewey, D.M.Gilliam, G.L.Greene, G.P.Lamaze, A.P.Williams, J.Pauwels, R.Eykens, J.Van Gestel, A.Lamberty, R.D.Scott

Determination of the Neutron Lifetime by Counting Trapped Protons

RADIOACTIVITY 1n(β-); measured T1/2. In-beam trapped proton counting technique.

doi: 10.1016/0168-9002(89)90261-1
Citations: PlumX Metrics


1984HE08      Phys.Rev. C29, 2389 (1984)

B.Heckel, M.Forte, O.Schaerpf, K.Green, G.L.Greene, N.F.Ramsey, J.Byrne, J.M.Pendlebury

Measurement of Parity Nonconserving Neutron Spin Rotation in Lanthanum

NUCLEAR REACTIONS 139La(n, n), E=0.002 eV; measured neutron polarization vector; deduced parity violating scattering amplitude component. 140La deduced resonance role in enhanced parity mixing.

doi: 10.1103/PhysRevC.29.2389
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1984HE11      J.Phys.(Paris), Colloq.C3, 89 (1984)

B.Heckel, M.Forte, N.F.Ramsey, G.L.Greene, K.Green, J.Byrne, J.M.Pendlebury

Parity Non-Conserving Neutron Spin Rotation

NUCLEAR REACTIONS 139La(polarized n, n), E=low; measured neutron rotation angle, parity nonconserving component; deduced neutron-nucleus weak interaction strength.


1984PE04      Phys.Lett. 136B, 327 (1984)

J.M.Pendlebury, K.F.Smith, R.Golub, J.Byrne, T.J.L.McComb, T.J.Sumner, S.M.Burnett, A.R.Taylor, B.Heckel, N.F.Ramsey, K.Green, J.Morse, A.I.Kilvington, C.A.Baker, S.A.Clark, W.Mampe, P.Ageron, P.C.Miranda

Search for a Neutron Electric Dipole Moment

NUCLEAR MOMENTS 1n; measured NMR; deduced electric dipole moment. Ultra-cold polarized neutrons.

doi: 10.1016/0370-2693(84)92013-6
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1983BL14      J.Phys.(London) B16, 4565 (1983)

S.J.Blakeway, W.Gelletly, H.R.Faust, K.Schreckenbach, J.Byrne

Measurements of the Transverse Polarization of K-Shell Photoelectron Produced by Unpolarised 334 and 439 keV Photons in Thorium

ATOMIC PHYSICS Th(γ, e), E=339, 439 keV; measured transverse photoelectron polarization; deduced nonzero correlation coefficient.

doi: 10.1088/0022-3700/16/24/013
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1982HE10      Phys.Lett. 119B, 298 (1982)

B.Heckel, N.F.Ramsey, K.Green, G.L.Greene, R.Gahler, O.Schaerpf, M.Forte, W.Dress, P.D.Miller, R.Golub, J.Byrne, J.M.Pendlebury

A Measurement of Parity Non-Conserving Neutron Spin Rotation in Lead and Tin

NUCLEAR REACTIONS Pb, Sn(polarized n, n), E ≤ 0.001 eV; measured parity nonconserving spin rotation parameter; deduced possible p-wave, structure effects.

doi: 10.1016/0370-2693(82)90674-8
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1980BY01      Phys.Lett. 92B, 274 (1980)

J.Byrne, J.Morse, K.F.Smith, F.Shaikh, K.Green, G.L.Greene

A New Measurement of the Neutron Lifetime

RADIOACTIVITY 1n; measured Ep, Ip; deduced T1/2. Electromagnetic trap storage of protons.

doi: 10.1016/0370-2693(80)90262-2
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1980RI07      Z.Phys. A298, 301 (1980)

J.P.Ribeiro, J.Byrne

Determination of β-Particle Longitudinal Polarization in the Decay of 210Bi

RADIOACTIVITY 210Bi; measured β-longitudinal polarization. Double focussing crossed field polarimeter. Conserved vector current hypothesis test.

doi: 10.1007/BF01425161
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1980SA11      J.Phys.(London) G6, 525 (1980)

J.Sala-Lizarraga, J.Byrne

Determination of K-Shell Capture Fractions in the Decay of 195Au

RADIOACTIVITY 195Au; measured γ(K X-ray)-, ce(K X-ray)-, (K X-ray)(K X-ray)-coin; deduced Q(ϵ), K-shell capture fractions. 195Pt levels deduced K-shell capture probability.NaI(Tl), Si(Li), Si surface-barrier detectors.

doi: 10.1088/0305-4616/6/4/020
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1971BE01      Nucl.Phys. A161, 650 (1971)

R.J.D.Beattie, J.Byrne

Angular Distributions and Energy Spectra of Internal Bremsstrahlung Emitted during Beta Decay of 32P, 90Y, 204Tl and 210Bi

RADIOACTIVITY 32P, 90Y, 204Tl, 210Bi; measured internal bremsstrahlung (IB) spectra, (β)(IB)-coin, (β)(IB)(θ).

doi: 10.1016/0375-9474(71)90393-9
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1970BY01      J.Phys.B 3, 1166 (1970)

J.Byrne, R.J.D.Beattie, S.Benda, I.Collingwood

L-Shell Fluorescence in 238Pu

RADIOACTIVITY 242Cm; measured Eα, Iα, αXl-, αγ-coin. 243,244Cm, 238Pu, 241Am; measured Eα, Iα, αγ-coin. 238Pu deduced L-shell fluorescence yield.


1970BY02      Contemp.Phys. 11, 359 (1970)

J.Byrne

The Radioactivity of Free Neutrons

doi: 10.1080/00107517008204412
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1970KY01      Nucl.Phys. A150, 143 (1970)

J.Kyles, J.C.McGeorge, F.Shaikh, J.Byrne

Investigation of the Decay 73As → 73Ge

RADIOACTIVITY 73As; measured I(X-ray), Iγ, Xce-, XX-, Xγ-delay; deduced K-capture fraction. 73Ge levels deduced T1/2, K/L ratio, ICC, γ-multipolarity. Ge deduced K-shell fluorescence yield.

doi: 10.1016/0375-9474(70)90463-X
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1968BY01      Phys.Rev. 170, 80 (1968)

J.Byrne, W.Gelletly, M.A.S.Ross, F.Shaikh

L2-Subshell Yield Measurements in Pu240, U236, and U234

RADIOACTIVITY 244Cm, 240,238Pu; measured αx-coin, L-subshell yields in decay to 240Pu, 236,234U.

doi: 10.1103/PhysRev.170.80
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Note: The following list of authors and aliases matches the search parameter J.Byrne: , J.P.BYRNE