5He

Ground-State Decay Evaluated Data



Measured Ground-State Γcm for 5He

Adopted value: 0.648 MeV (2002TI10)
Measured Mass Excess for 5He

Adopted value: 11390 ± 50 keV (2003AU02)

Measurements
1960AR04: 4He(n, X), En = 40 - 160 MeV. 5He; measured not abstracted; deduced nuclear properties.
1960BA45: 5He; measured not abstracted; deduced nuclear properties.
1960BR10: 5He; measured not abstracted; deduced nuclear properties.
1960HA14: 5He; measured not abstracted; deduced nuclear properties.
1960PE14: 5He; measured not abstracted; deduced nuclear properties.
1960YO06: 3He(t, p)5He; measured not abstracted; deduced nuclear properties.
1961RY01: 5He; measured not abstracted; deduced nuclear properties.
1965AS06: 5He; measured not abstracted; deduced nuclear properties.
1966CE05: 5He; measured not abstracted; deduced nuclear properties.
1966HO06: 5He; measured not abstracted; deduced nuclear properties.
1967TO02: 3He(d, d), 5He; measured not abstracted; deduced nuclear properties.
1968IV01: 3H(d, α), E = 3 - 11 MeV; measured σ(E; θ). 5He deduced level, π.
1968MC02: 5He; measured not abstracted; deduced nuclear properties.
1968MO26: He(n, n), E = 0.2 - 7.0 MeV; measured σ(E; Eα, θα); deduced phase shifts. 5He deduced resonance parameters.
1968TA11: 2H(α pα), E = 29.2 MeV; measured σ(Ep, Eα, θ). 5He deduced resonances.
1969BE56: 3H(d, γ), E = 25 - 100 keV; measured σ(E; Eγ = 16.7 MeV). 5He resonances deduced γ-width.
1970KO09: 3H(d, γ), E = 1.025 MeV; measured σ(Eγ, θγ). 5He resonance deduced level-width.
1970MI05: 7Li(n, t), E = 14.4 MeV; measured σ(Et, θ). 5He deduced S.
1971KI02: 3H(polarized d, d), E = 3.2 - 12.3 MeV; measured σ(E). 5He deduced resonance, π.
1971SI30: 3H(d, n), E = 0.5 - 7 MeV; analyzed σ(E; θ), P(n)(E; θ). 5He deduced resonance, J, π.
1972BA30: 7Li(d, α), E = 24 MeV; measured σ(Eα, θ). 3He(d, d), 3He(d, α), E = 9.4 - 17.8 MeV; measured σ(E; θ). 5He deduced levels.
1972GI10: 7Li(d, 2α)n, E = 1 MeV; measured αα-coin. 5He deduced first excited state, level-width.
1972KA44: 6Li(d, pt), E = 0.13 MeV; measured σ(Ep, Et, θp, θt). 5He deduced T1/2.
1972ST08: 7Li(d, α), E = 1.2 MeV; measured αα-coin. 5He deduced resonances, level-width.
1973GA16: 6, 7Li(γ, p), E = 60 MeV; measured σ(Ep).
1973GA28: 7Li(d, α), E = 1 MeV; measured σ(Eα), αα-coin. 5He level deduced level-width.
1973MAZH, 1974MAYI: 7Li(polarized p, t), E = 43.8 MeV. 5He deduced levels.
1973TR04: 2H(α, pd), (α, dt), Eα = 70 MeV. Deduced level-width. 5He deduced levels.
1974HO11: 2H(α, αp), E = 165 MeV; measured σ(Eα, θp, θα). 5He deduced resonance.
1974SC04: 3H(d, n). 5He deduced resonances, level-width, J, π.
1975GR42: 6, 7Li(α, αn), E = 27.2 MeV; measured σ(Eα, θαn), αn-coin. 5He deduced α-decay, Iα(θ).
1976FO21: 7Li(d, 2α), E = 2 MeV; measured αα-coin. 5He deduced level, Γ.
1976WO11: 9Be(α, 8Be), E = 65 - 72.5 MeV; measured σ(E(8Be), θ). 5He levels deduced absolute, relative Sα, L. DWBA analysis.
1977BR17: 6Li(n, d), E = 56.3 MeV; measured σ(Ed, θ), θcm = 7 - 60°. 5He levels deduced S.
1977PR06: 2H(α, pα), E = 22.5 MeV; measured σ(Ep, Eα, θp, θα, φ) angular distribution. 5He ground state deduced tensor moments.
1978KA11: 4He(d, p), E = 6.8, 7.8 MeV; measured σ(Ep, θ), total reaction σ. 5He deduced resonance. DWBA analysis.
1978NA08: 4He(polarized d, p), E = 15 MeV; measured σ(Ep, θp), iT11(Ep, θp).
1979KA33: 2H(t, t), E = 0.6 - 3.4 MeV; measured σ(θ). 5He resonances deduced L, Γ.
1980BR20: 2H(α, pα), E = 9.847, 12.87 MeV; measured absolute σ(θp, θα, Eα). 5He level deduced Γ.
1980KU06: 6Li(γ, p), E = 10.2, 15.4 MeV bremsstrahlung; measured σ(Ep, θp).
1980MA48: 7Li(d, n), E = 13.2 MeV; 7Li(d, 2α), E = 9 - 13.5 MeV; measured σ(En). 5He levels deduced neutron branching.
1980WA07: 9Be(α, 2α), E = 140 MeV; measured σ(Eα1, Eα2, θα1, θα2). 5He levels deduced S. DWIA analysis.
1980YA11: 7Li(d, n), E = 400, 680, 1020 keV; measured σ(En). 5He levels deduced neutron branching.
1981CLZY: 3H(polarized d, n), E = 3 - 6 MeV; measured σ(θ), vector, tensor analyzing powers. 5He deduced level structure.
1983HA20: 4He(n, n), E = 1.5 - 40 MeV; measured σ(E). 5He deduced resonance energy, Γ, Γn.
1983IS10: 4He(polarized d, p), E = 12, 21 MeV; measured σ(θ, Ep), iT11(θ), T20(θ), T21(θ), T22(θ).
1983VO02: 5He; analyzed data. 5He deduced resonance characteristics. Three-particle model.
1984CE08: 3H(d, γ), E = 90 keV; measured Eγ, Iγ, Γγα branching ratio.
1985DE17: 9Be(p, pX), E = 8 MeV; measured σ(θp, Ep, fragment θ) for X = 3He. 5He levels deduced cluster spectroscopic information. DWIA analysis.
1985FR01: 7Li(3He, d3He), (3He, pα), E = 120 MeV; measured σ(E1, E2, θ1, θ2); deduced residuals missing mass spectra.
1985LU08: 4He(polarized d, p), E = 5.4 - 8.4 MeV; measured σ(θ, Ep), iT11(θ, Ep), T20(θ, Ep), T21(θ, Ep), T22(θ, Ep).
1986MO05: 3H(d, γ), (d, n), E = 0.0 - 0.72 MeV; measured Eγ, Iγ, En, relative γ yield. 5He resonance deduced branching ratio.
1987BO40: 7Li(11B, 13C), Ecm = 34.2 MeV; measured energy spectra, σ(θ). 5He deduced levels, Γ.
1987BR10: 3H(d, α), E = 80 - 116 keV; measured σ(E); deduced astrophysical S-factor vs E. 5He deduced resonances, Γα, Γd.
1988BA75: 4He(7Li, 6Li); analyzed data. 5He deduced level sequence.
1988BE34: 7Li(11B, 13C), E = 88, 87 MeV; measured ejectile spectra. 5He deduced levels, parameters.
1988BEYJ: 7Li(11B, 13C); measured reaction σ. 5He deduced levels, Γ.
1988WO10: 4He(7Li, 6Li), E = 50 MeV; 6Li(12C, 13N), E = 90 MeV; measured σ(θ). 5He levels deduced reduced widths, spectroscopic factors. R-matrix analysis.
1989AR04: 7Li(d, 2α), E = 6.8 MeV; measured σ(θ1, θ2); deduced three body effects. 5He deduced (3/2)+ level width.
1989BA88: 7Li(p, 3He), E = 29.1 - 44.6 MeV; measured σ(θ); deduced model parameters. DWBA, zero-range interaction.
1989RI04: 3H(polarized d, γ), E = 400 keV; measured σ(θ), analyzing power vs θ; deduced transition multipolarity.
1990BAZS: 3H(d, γ), E = 8.6 MeV; measured γ-spectra. 5He levels deduced Γ.
1991AR10: 7Li(d, 2α), E = 1.4, 2.1, 2.5 MeV; measured σ(θα1, θα2). 5He deduced level, Γ.
1991BA02: 3H(d, γ), E = 8.6 MeV; measured Eγ, Iγ. 5He level deduced Γ, nucleon decay widths.
1992AB03: 4He(n, n), E ≈ 21.5 - 22.5 MeV; measured σ(E). 5He deduced resonance, Γ.
1993CS02: 3H(d, d), E ≤ 150 keV; 4He(n, n), E ≤ 6 MeV; analyzed phase shifts. 5He deduced 3/2 resonance characteristics.
1993FA12: 7Li(d, 2α), E = 0.5 MeV; analyzed σ(θ1, θ2). 5He deduced level energy, Γ.
1993KA01: 3H(d, γ), (d, α), E = 100 keV; measured particle spectra, count rates; deduced σ ratio for 3H(d, γ) relative to 3H(d, α).
1994BA02: 3H(polarized d, γ), E = 0.4 - 8.6 MeV; measured Eγ, Iγ, σ(θ), vector, tensor analyzing power vs θ; deduced transition matrix elements. Resonating group model.
1994WA06: 4He(α, 3He), E = 118 MeV; measured σ(θ); deduced model parameters. DWBA analysis.
1995LA33: 3H(d, n), E = 8 - 116 keV; analyzed σ(E); deduced astrophysical S-factor at resonance. 5He deduced resonance parameters.
1996EF03: 3H(d, γ); analyzed data analyses. 5He deduced level energy, Γ.
1996ST25: 4He(α, 3He), Ecm = 158, 200 MeV; measured yield vs E(3He), σ(θ); deduced model parameters.
1997BA72: 3H(d, n), E = 0 - 250 keV; 4He(n, X), E = 21 - 23 MeV; 3He(d, p), E = 0 - 1000 keV; analyzed total σ. 5He level deduced phase shifts, R-matrix parameter description.
1997CS01: 4He(n, n), (p, p), Ecm ≤ 15 MeV; analyzed phase shifts vs E. 5He deduced resonance parameters.
2000GO35: 3H(α, dα), E = 67.2 MeV; measured particle spectra, dα-coin. 5He deduced excited states.
2002SA46: 6Li(6Li, 7Be), E = 93 MeV; measured particle spectra, σ(E, θ). 5He deduced excited states features, possible quasimolecular structure.
2004ST18: 2H(6He, t), E = 132 MeV; measured particle spectra. 5He deduced resonance energies, widths.
2005GO47: 3H(α dα), E = 67.2 MeV; measured deuteron and α spectra, dα-coin. 5He deduced excited state energy, width.
2005GO48: 3H(α dα), E = 67.2 MeV; measured deuteron and α spectra, dd-, dα-coin. 5He deduced excited states energy, widths.
2005PAZY: 6Li(d, 3He), 7Li(d, α), E = 14.5 MeV; measured particle spectra, angular distributions. 5He deduced excited state energy, width.
2005TE05: 2H(6He, t), E = 132 MeV; measured particle spectra, angular correlations following residual nucleus decay. 5He deduced resonances J, π, IAS features.
2009AK03: 12C(6He, Xn), E = 240 MeV/nucleon; analyzed fragment spectra, neutron spectra, relative energy spectra; deduced resonance parameters using R-matrix analysis.
2009LA23: 6Li(d, α), 7Li(d, α), (d, 5He), E = 100 keV; measured σ, σ(θ).
2012LV01: H, C(6He, X), E = 82.3 MeV/nucleon; measured reaction products, En, In, Eα, Iα. 5He; deduced σ(E), p3/2 resonant state, resonance parameters.
2013PAZZ: 7Li(d, α), E = 37 MeV; measured Eα, Iα(θ), reaction products, dα-coin, tα-coin. 5He deduced resonance parameters.
2015BR07: 3H(t, 2n)4He, Ecm = 16, 57 keV; fits to experimental neutron time-of-flight spectra. 5He; deduced fits to the 3/2- ground and 1/2- first excited states.
2016DR09: 3H(t, n)5He, E = 5.98 - 19.14 MeV; measured En, In; deduced σ(θ, E).
2017WU03: 2H(6He, t), E = 55 MeV/nucleon. 5He deduced energies and widths of resonances corresponding to the ground state.

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Last modified: 21 May 2018