ADOPTED LEVELS, GAMMAS for 71Cu
Authors: Balraj Singh and Jun Chen | Citation: Nucl. Data Sheets 188, 1 (2023) | Cutoff date: 17-Jan-2023
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=4618 keV 3 | S(n)= 7806.1 keV 18 | S(p)= 10786.2 keV 26 | Q(α)= -9814 keV 7 | ||
Reference: 2021WA16 |
References: | |||
A | 71Ni β- decay (2.56 S) | B | 71Ni β- decay (2.3 S) |
C | 2H(72Zn,3He) | D | 9Be(76Ge,xγ),NI(86Kr,xγ) |
E | Coulomb Excitation | F | 198Pt(76Ge,xγ) |
G | 208Pb(70Zn,xγ) | H | 238U(64Ni,xγ) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | ABCDEFGH | 3/2(-) | 19.4 s 16 % β- = 100 | |||||
454.20 10 | B E | (1/2-) | 454.2 1 | 100 | [M1+E2] | 0.0 | 3/2(-) | |
534.37 7 | A CDEFGH | (5/2-) | 534.4 1 | 100 | 0.0 | 3/2(-) | ||
981.33 8 | A D GH | (7/2-) | 14 ps 6 | 447.0 1 981.3 1 | 30.0 22 100 3 | [M1,E2] [E2] | 534.37 0.0 | (5/2-) 3/2(-) |
1189.39 8 | A DEFGH | (7/2-) | 1.15 ps 13 | 655.1 1 1189.4 1 | 10.1 11 100 3 | [M1,E2] [E2] | 534.37 0.0 | (5/2-) 3/2(-) |
1453.31 10 | A GH | (9/2-) | 472.0 1 | 100 | 981.33 | (7/2-) | ||
1633.3 7 ? | D | 652? | | 981.33 | (7/2-) | |||
1786.28 10 | A D F H | (9/2-) | 1251.8 1 | 100 | 534.37 | (5/2-) | ||
1845.69 12 | A C | (7/2-,9/2-) | 1311.3 1 | 100 | 534.37 | (5/2-) | ||
1895.10 21 | A C | (7/2-) | 705.7 2 | 100 | 1189.39 | (7/2-) | ||
1973.67 18 | A GH | (11/2-) | 520.3 2 992 | 100 | 1453.31 981.33 | (9/2-) (7/2-) | ||
2128.29 13 | A D FGH | (11/2-) | 341.8 2 495? 674.9 5 939.1 2 | 11.8 15 1.9 6 100 6 | 1786.28 1633.3 1453.31 1189.39 | (9/2-) (9/2-) (7/2-) | ||
2151.6 4 ? | D | 2151.0? | | 0.0 | 3/2(-) | |||
2289.73 13 ? | A | 161.4 1 | 100 | 2128.29 | (11/2-) | |||
2551.4 10 | A | (7/2+) | 2017.0 10 | 100 | 534.37 | (5/2-) | ||
2576.7 8 | G | (13/2-) | 603 | | 1973.67 | (11/2-) | ||
2599.79 11 | A | 1410.4 1 | 100 | 1189.39 | (7/2-) | |||
2623.14 19 | D FGH | (15/2-) | 328 ps 17 | 471.0? 495.0 2 649.4 2 | 100 52 4 | [E2] | 2151.6 2128.29 1973.67 | (11/2-) (11/2-) |
2686.40 14 | A | 1497.1 2 | 100 | 1189.39 | (7/2-) | |||
2751.12 23 | A | 1297.8 2 | 100 | 1453.31 | (9/2-) | |||
2756.1 4 | D FGH | (19/2-) | 0.271 µs 14 % IT = 100 | 132.9 2 | 100 | [E2] | 2623.14 | (15/2-) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
2805.88 11 | A | (7/2+,9/2+,11/2+) | 206.1 1 1019.0 3 1352.6 1 | 26 6 84 7 100 9 | 2599.79 1786.28 1453.31 | (9/2-) (9/2-) | ||
2867.3 8 | A | (7/2+,9/2+) | 1885.9 8 | 100 | 981.33 | (7/2-) | ||
2925.19 23 | A | (7/2+,9/2+,11/2+) | 1138.9 2 | 100 | 1786.28 | (9/2-) | ||
2971.7 8 | G | (15/2-) | 395 998 | | 2576.7 1973.67 | (13/2-) (11/2-) | ||
3034.47 12 | A | (7/2+,9/2+,11/2+) | 348.1 1 744.7 1 1248.2 1 1581.0 4 | 27 5 19 5 100 11 31 7 | 2686.40 2289.73 1786.28 1453.31 | (9/2-) (9/2-) | ||
3.24E3 20 | C | (7/2)- | ||||||
3430.7 13 | G | (17/2-) | 459 | | 2971.7 | (15/2-) | ||
4.36E3 17 | C | (7/2)- | ||||||
4776.5 6 | H | (23/2-) | 2020.3 5 | | 2756.1 | (19/2-) | ||
5330.7 8 | H | (25/2,27/2-) | 554.2 5 | | 4776.5 | (23/2-) | ||
5.92E3 18 | C | 1/2+&(3/2)+ |
E(level): From a least-squares fit to Eγ data, assuming ΔEγ=0.5 keV for Eγ quoted to nearest tenth keV and 1 keV for Eγ quoted to keV, where ΔEγ not given.
Jπ(level): In addition to the arguments given with individual levels, assignments for many levels are also supported by shell-model calculations by 2021Pe08, 2015Li33, 2015Mo22, 2009St05 2008St04 and 1998Is11 in 71Ni decay, 2H(72Zn,3He), Coulomb excitation, and several heavy-ion reaction studies
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - Band based on 3/2(-). | |||||||
0.0 | 3/2(-) | 19.4 s 16 % β- = 100 | |||||
1189.39 8 | (7/2-) | 1.15 ps 13 | 655.1 1 1189.4 1 | 10.1 11 100 3 | [M1,E2] [E2] | 534.37 0.0 | (5/2-) 3/2(-) |
2128.29 13 | (11/2-) | 341.8 2 495? 674.9 5 939.1 2 | 11.8 15 1.9 6 100 6 | 1786.28 1633.3 1453.31 1189.39 | (9/2-) (9/2-) (7/2-) | ||
2623.14 19 | (15/2-) | 328 ps 17 | 471.0? 495.0 2 649.4 2 | 100 52 4 | [E2] | 2151.6 2128.29 1973.67 | (11/2-) (11/2-) |
2756.1 4 | (19/2-) | 0.271 µs 14 % IT = 100 | 132.9 2 | 100 | [E2] | 2623.14 | (15/2-) |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - ΔJ=1 band based on (5/2-) | |||||||
534.37 7 | (5/2-) | ||||||
981.33 8 | (7/2-) | 14 ps 6 | 447.0 1 981.3 1 | 30.0 22 100 3 | [M1,E2] [E2] | 534.37 0.0 | (5/2-) 3/2(-) |
1453.31 10 | (9/2-) | 472.0 1 | 100 | 981.33 | (7/2-) | ||
1973.67 18 | (11/2-) | 520.3 2 992 | 100 | 1453.31 981.33 | (9/2-) (7/2-) | ||
2576.7 8 | (13/2-) | 603 | | 1973.67 | (11/2-) | ||
2971.7 8 | (15/2-) | 395 998 | | 2576.7 1973.67 | (13/2-) (11/2-) | ||
3430.7 13 | (17/2-) | 459 | | 2971.7 | (15/2-) |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
454.20 | (1/2-) | 454.2 1 | [M1+E2] | 0.0018 | B(E2)(W.u.)=20.4 22 (<a href= "http://www.nndc.bnl.gov/nsr/nsrlink.jsp?2008St04 ">2008St04</a>), α=0.0018 6 | |
981.33 | (7/2-) | 14 ps 6 | 447.0 1 | [M1,E2] | 0.0019 | α=0.0019 7 |
(7/2-) | 14 ps 6 | 981.3 1 | [E2] | B(E2)(W.u.)=2.0 +14-6 | ||
1189.39 | (7/2-) | 1.15 ps 13 | 1189.4 1 | [E2] | B(E2)(W.u.)=10.7 12 (<a href= "http://www.nndc.bnl.gov/nsr/nsrlink.jsp?2008St04 ">2008St04</a>) | |
2623.14 | (15/2-) | 328 ps 17 | 495.0 2 | [E2] | 1.87×10-3 | B(E2)(W.u.)=2.18 +13-12, α=1.87E-3 3 |
2756.1 | (19/2-) | 0.271 µs 14 % IT = 100 | 132.9 2 | [E2] | 0.2079 | B(E2)(W.u.)=2.38 +13-12, α=0.2079 34, α(K)=0.1844 30, α(L)=0.02049 34, α(M)=0.00285 5, α(N)=7.28E-5 12 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | 3/2(-) | 19.4 s 16 % β- = 100 | μ=+2.2772 8 (2009Fl03,2010Vi07,2019StZV), Q=-0.200 17 (2010Vi07,2016St14,2021StZZ) Configuration: π2p3/21~#ν1g9/22 (2008St01). E(level): Band based on 3/2(-). |
534.37 | (5/2-) | E(level): ΔJ=1 band based on (5/2-). | |
981.33 | (7/2-) | 14 ps 6 | XREF: d(?). E(level): ΔJ=1 band based on (5/2-). |
1189.39 | (7/2-) | 1.15 ps 13 | E(level): Band based on 3/2(-). |
1453.31 | (9/2-) | E(level): ΔJ=1 band based on (5/2-). | |
1973.67 | (11/2-) | E(level): ΔJ=1 band based on (5/2-). | |
2128.29 | (11/2-) | E(level): Band based on 3/2(-). | |
2576.7 | (13/2-) | E(level): ΔJ=1 band based on (5/2-). | |
2623.14 | (15/2-) | 328 ps 17 | E(level): Band based on 3/2(-). |
2756.1 | (19/2-) | 0.271 µs 14 % IT = 100 | E(level): Band based on 3/2(-). |
2971.7 | (15/2-) | E(level): ΔJ=1 band based on (5/2-). | |
3430.7 | (17/2-) | E(level): ΔJ=1 band based on (5/2-). |
E(level) | E(gamma) | Comments |
454.20 | 454.2 | E(γ): from Coulomb excitation |
534.37 | 534.4 | E(γ): others: 534.4 6 from (76Ge,Xγ) and 534.3 2 from (64Ni,Xγ) |
981.33 | 447.0 | E(γ): weighted average of 446.9 1 from 71Ni β- decay (2.56 s) and 447.2 2 from (64Ni,Xγ) I(γ): other: 29 5 from (64Ni,Xγ) |
1189.39 | 655.1 | E(γ): other: 654.9 2 from (64Ni,Xγ) I(γ): weighted average of 9.6 18 from 71Ni β- decay (2.56 s), 10.4 11 from (64Ni,Xγ), and 9.6 18 from Coulomb excitation | 1189.4 | E(γ): weighted average of 1189.5 1 from 71Ni β- decay (2.56 s), 1189.1 4 from 198Pt(76Ge,Xγ), and 1189.2 2 from (64Ni,Xγ) I(γ): from 71Ni β- decay (2.56 s). Others: 100 4 from (64Ni,Xγ) and 100.0 30 from Coulomb excitation |
1453.31 | 472.0 | E(γ): other: 471.9 2 from (64Ni,Xγ) |
1633.3 | 652 | E(γ): From 9Be(76Zn,Xγ),Ni(86Kr,Xγ) |
1786.28 | 1251.8 | E(γ): weighted average of 1251.7 1 from 71Ni β- decay (2.56 s) and 1252.2 2 from (64Ni,Xγ). Other: 1251.6 9 from (76Ge,Xγ) |
1973.67 | 520.3 | E(γ): weighted average of 520.2 1 from 71Ni β- decay (2.56 s) and 520.6 2 from (64Ni,Xγ) | 992 | E(γ): From 208Pb(70Zn,Xγ) |
2128.29 | 341.8 | E(γ): other: 342.4 9 from 198Pt(76Ge,Xγ). From 238U(64Ni,Xγ) I(γ): weighted average of 16 8 from 198Pt(76Ge,Xγ) and 11.6 15 from (64Ni,Xγ) | 495 | E(γ): From 9Be(76Zn,Xγ),Ni(86Kr,Xγ) | 674.9 | E(γ): From 238U(64Ni,Xγ) I(γ): From 238U(64Ni,Xγ) | 939.1 | E(γ): weighted average of 939.5 2 from 71Ni β- decay (2.56 s), 939.1 4 from 198Pt(76Ge,Xγ), and 939.1 2 from (64Ni,Xγ) I(γ): from (64Ni,Xγ). Other: 100 10 from 198Pt(76Ge,Xγ) |
2151.6 | 2151.0 | E(γ): From 9Be(76Zn,Xγ),Ni(86Kr,Xγ) |
2576.7 | 603 | E(γ): From 208Pb(70Zn,Xγ) |
2623.14 | 471.0 | E(γ): From 9Be(76Zn,Xγ),Ni(86Kr,Xγ) | 495.0 | E(γ): weighted average of 494.7 3 from 198Pt(76Ge,Xγ) and 495.1 2 from (64Ni,Xγ) | 649.4 | E(γ): From 238U(64Ni,Xγ) I(γ): From 238U(64Ni,Xγ) |
2756.1 | 132.9 | E(γ): weighted average of 133.0 3 from 198Pt(76Ge,Xγ) and 132.8 2 from (64Ni,Xγ) |
2971.7 | 395 | E(γ): From 208Pb(70Zn,Xγ) | 998 | E(γ): From 208Pb(70Zn,Xγ) |
3430.7 | 459 | E(γ): From 208Pb(70Zn,Xγ) |
4776.5 | 2020.3 | E(γ): From 238U(64Ni,Xγ) |
5330.7 | 554.2 | E(γ): From 238U(64Ni,Xγ) |
Mass measurement: 2007Gu09
Other measurements:
1983Ru06: produced by 76Ge on W, E=9 MeV/nucleon, on-line mass separation and tape-transport system; measured half-life
1999Pr10: production in 76Ge fragmentation
2008St01: E=1 GeV proton beam provided by CERN PS booster. 71Cu beam was obtained using the ISOLDE fragment separator and implanted in the NICOLE detector system. The refrigerator temperature was varied between 1 K and 11-12 mK. Measured nuclear dipole moment of g.s. using β-NMR method on oriented nuclei at low temperatures.
2009Fl03, 2010Vi07: in-source laser spectroscopy and collinear laser spectroscopy at ISOLDE-CERN facility. Measured spin, and static magnetic moment and static quadrupole moment of the ground state
2016Bi08: 71Cu isotope was produced by bombarding UCx target with 1.4 GeV proton beam at the CERN-ISOLDE facility. Cu isotopes were selectively ionized by the RILIS laser ion source, accelerated to 30 keV, mass separated with the high-resolution mass separator, and injected into the gas-filled linear Paul trap. Measured isotope shift with respect to 65Cu using the collinear laser spectroscopy setup. Studied systematics of isotope shifts on 58-75Cu isotopes. Compared with droplet model predictions.
2020De21: 71Cu isotope was produced by bombarding 238U target with neutrons produced by impinging a 1.4 GeV proton beam on a neutron converter at the CERN-ISOLDE facility. Cu isotopes were selectively ionized by the RILIS laser ion source, accelerated to 30 keV for mass separation with high-resolution mass separator, and injected into ISCOOL gas-filled linear Paul trap. Measured isotope shift with respect to 65Cu using collinear resonance ionization spectroscopy.
Theoretical calculations:
2022Ba29, 2021Ro19: calculated energies of the ground-state and the first-excited state, Jπ of g.s. using simple effective interaction (SEI) with and without the addition of a short-range tensor force to SEI and SIII-t, SLy5-t, SAMi-T Skyrme and D1MTd Gogny effective interaction
2022Ma30: calculated ground state energy, electric quadrupole moment, charge radius using shell model and other theoretical approaches.
2020Bo22: calculated charge radius using the self-consistent theory of finite Fermi systems and the family of energy density functionals.
2018Mi22: calculated M1 γ-strength function using large-scale shell model.
2018Na18: calculated potential energy curves, binding energy per nucleon, deformation parameters, total quadrupole moments, T1/2, radius, electron- and positron-capture rates using the density-dependent relativistic mean field (RMF) model.
2015Ka46: calculated binding energy, effective single-particle energies of proton orbit, level energies of low-lying, low spin states and B(E2) values, magnetic moments and electric quadrupole moments using shell model.
2012Sr02, 2012Sr03: calculated low-lying level energies, Jπ, B(E2) using shell model
2010Da06: calculated low-lying levels, Jπ using shell model
2010Si11: calculated levels, Jπ, neutron and proton orbital occupancies, magnetic moments, g factors using large-scale shell model.
2005Li54: calculated level energies, Jπ using shell model.
2004Sm03: calculated level energies, spectroscopic factors, monopole shift using shell model
2003Ji09: calculated deformation, superdeformed configurations using relativistic mean-field approach.
Q-value: S(2n)=13117.5 20, S(2p)=26900 90 (2021Wa16)