Measured Ground-State Γ_cm for ⁷He

Adopted value: 150 ± 20 keV (2002TI10)

Measured Mass Excess for ⁷He

Adopted value: 26101 ± 17 keV (2003AU02)

1960BA51: ⁷He; measured not abstracted; deduced nuclear properties.

1965DE08: ⁷He; measured not abstracted; deduced nuclear properties.

1967ST04: ⁷He; measured not abstracted; deduced nuclear properties.

1969ST02: ⁷Li(t, ³He), E = 22 MeV; measured Q, σ(E(³He), θ). ⁷He deduced ground-state level-width.

1977WE03: ⁹Be(⁶Li, ⁸B); E = 80.0, 93.3 MeV; measured σ(θ). ⁷He deduced structure parameters.

1984BR03: ⁷Li(n, p), E = 60 MeV; measured σ(θ). ⁷He deduced L = 1 dipole strength contribution.

1985AL29: ⁷Li(⁷Li, ⁷Be), E = 70 MeV; ⁹Be(⁶Li, ⁸B), E = 72 MeV; measured σ(E(⁷Be)), σ(E(⁸B)). ⁷He deduced possible level.

1985ALZM: ⁹Be(⁶Li, ⁸B), E = 72 MeV; measured σ(E(⁸B)). ⁷Li(⁷Li, ⁷Be), E = 70 MeV; measured σ(E(⁷Be)). ⁷He deduced levels.

1987BEYI: ⁷Li(¹¹B, ¹¹C), E = 88 MeV; ⁹Be(⁹Be, ¹¹C), E = 106.7 MeV; ⁹Be(¹¹B, ¹³N), E = 88 MeV; ⁹Be(¹⁴C, ¹⁶O), E = 152.6 MeV; measured σ(E(¹¹C)), σ(E(¹³N)), σ(E(¹⁶O)). ⁷He deduced levels, Γ.

1987BEZI: ⁹Be(⁹Be, X), ⁷Li, ⁹Be(¹¹B, X), ⁹Be(¹⁴C, X), E not given. ⁷He deduced possible levels.

1987BO40: ⁷Li(¹¹B, ¹¹C), E_cm = 34.2 MeV; ⁹Be(¹¹B, ¹³N), E_cm = 39.6 MeV; ⁹Be(¹⁴C, ¹⁶O), E_cm = 60.26 MeV; measured energy spectra, σ(θ). ⁷He deduced levels, Γ.

1988BE34: ⁷Li(¹¹B, ¹¹C), E = 88, 87 MeV; ⁹Be(¹¹B, ¹³N), E = 88 MeV; ⁹Be(¹⁴C, ¹⁶O), E = 152.6, 158 MeV; ⁹Be(⁹Be, ¹¹C), E = 106.7 MeV; measured ejectile spectra. ⁷He deduced levels, parameters.

1988BEYJ: ⁹Be(¹⁴C, ¹⁶O), E not given; measured reaction σ. ⁷He deduced levels, Γ.

1990BEYY: ⁹Be(¹⁸O, ²⁰Ne), E = 260.5 MeV; measured σ. ⁷He deduced mass excess.

1992AMZY: ¹⁰B, ⁹Be(π^-, X), E at rest; measured pion, deuteron, triton spectra. ⁷He deduced resonance, Γ.

1995THZZ: ⁹Be(¹⁸O, X), E = 80 MeV/nucleon; measured (fragment)n-coin. ⁷He deduced neutron decay energies. ⁷He, from ⁹Be(¹⁸O, X), E = 80 MeV/nucleon; measured neutron decay energies

1995VO05: ⁶Li(¹⁴C, ¹³N), E = 335.9 MeV; measured residual nucleus spectra.

1998BO38: ⁹Be(¹⁵N, ¹⁷F), E = 240 MeV; measured particle spectra. ⁷He deduced resonances, J, π.

1998GO30: ⁹Be(π^-, d), ¹¹B(π^-, 2d), ¹¹B(π^-, pt), ¹⁰B(π^-, pd), E at rest; measured missing mass spectra. ⁷He deduced excited levels, widths.

1999BO26: ⁹Be(¹⁵N, ¹⁷F), E = 240 MeV; measured residual nuclei spectra. ⁷He deduced levels, possible J, π.

1999KO14: ¹H(⁸He, d), E = 50 MeV/nucleon; measured σ(θ), deuteron spectra, nd-, (He)d-coin. ⁷He deduced excited state energy, width, possible J, π.

2000KO46: ¹H(⁸He, d), E not given; measured deuteron spectra, (He)d-coin. ⁷He deduced excited state energy, width, possible J, π.

2001BO35: ⁹Be(¹⁵N, ¹⁷F), E = 240, 318.5 MeV; measured particle spectra, angular distributions. ⁷He deduced levels, J, π, resonance parameters.

2001GO35: ²H(⁶He, ⁷He), E = 37 MeV/nucleon; measured excitation energy spectra. ⁷He deduced no narrow excited states.

2001MA05: C(⁸He, 2nα), E = 227 MeV/nucleon; measured fragments relative energy spectra, σ(θ). ⁷He deduced resonance features.

2001NA29: ⁷Li(⁷Li, ⁷Be), E = 65 MeV/nucleon; measured particle spectra, σ(θ). ⁷He deduced resonance features, α-cluster structure.

2002KO19: ²⁵²Cf(SF); measured neutron, light charged particle, fission fragment spectra, angular correlations following ternary fission; deduced ternary fission yields, evidence for ⁷He.

2002KO24: ¹H(⁸He, d), E = 50 MeV/nucleon; measured particle spectra. ⁷He deduced excited state.

2002ME07: C(⁸He, X), E = 227 MeV/nucleon; measured neutron and ⁶He momenta, (neutron)(⁶He)-coin, σ(E) following projectile breakup. ⁷He deduced ground state and resonance width, J, π, level scheme following compilation of earlier data.

2004YA12: ⁷Li(⁷Li, ⁷Be), E = 455 MeV; measured particle spectra, σ(E, θ). ⁷He deduced GDR energies, widths, α-cluster excitation.

2004YA21: ⁷Li(⁷Li, ⁷Be), E = 455 MeV; measured excitation energy spectra. ⁷He deduced dipole resonance energies, widths, Q-values for GDR excitation.

2005RO37: ¹H(⁸He, ⁸He), E not given; measured recoil proton spectrum; deduced excitation function. ⁷He deduced analog states features.

2005WU08: ²H(⁶He, p), E = 69 MeV; measured particle spectra, σ(θ). ⁷He deduced ground-state J, π, excited state energy, width.

2005WUZZ: ²H(⁶He, p), E = 69 MeV; measured particle spectra, angular distributions. ⁷He deduced excited states.

2006GU22: ⁹Be(π^-, 2pX), E at rest; measured E_p, missing mass spectra. ⁷He deduced possible resonance energies, widths.

2006NO11: (⁷Li, ⁷Be), E ≈ 8 MeV/nucleon; measured excitation energy spectra. ⁷He deduced excited states features.

2006SK03: ¹H(⁸He, d), E = 15.7 MeV/nucleon; measured deuteron spectra, σ(θ); deduced spectroscopic factor. ⁷He deduced levels, J, π, resonant state.

2006WUZZ: ²H(⁶He, p), E = 69 MeV; measured E_p, σ(θ). ⁷He deduced level energies, spectroscopic factors.

2007GU24: ¹²C(π^-, pα), E at rest; measured missing mass spectra.

2008DE29: Be(⁸Li, X), E = 41 MeV/nucleon; measured particle spectra, angular distributions. Deduced energy of ground-state resonances. ⁷He; deduced ground-state energies and widths.

2008WU05, 2008WUZZ: ²H(⁸Li, ³He), E = 76 MeV; measured charged particle spectra, (particle)(particle)-coin, angular distributions, σ, σ(θ), spectroscopic factors. ⁷He; deduced levels, J, π.

2009AK03: ¹²C(⁸He, Xn)⁷He, E = 227 MeV/nucleon; analyzed fragment spectra, neutron spectra, relative energy spectra; deduced resonance parameters using R-matrix analysis.

2011GUZX: ¹¹B(π^-, pt), (π^-, 2d), E at rest; measured reaction products.Deduced missing mass spectrum, excited state energies.

2014GU23: ¹¹B(π^-, pt), (π^-, 2d), E=low; measured reaction products. ⁷He; deduced energy levels, resonance widths.

2015GU03: ¹¹B(π^-, X)⁷He, E stopped; measured reaction products, missing mass spectra; deduced energy levels, resonance widths.

2016GU21: ⁷He deduced resonances, resonance parameters.

2016RE14: ⁹Be(⁶He, ⁸Be)⁷He, E=16.8 MeV. ⁷He deduced excitation energy spectrum, levels, resonances, J, π, width, spectroscopic factors.

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Last modified: 28 June 2021