ADOPTED LEVELS, GAMMAS for 55Ti
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 30-Apr-2022
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 30-June-2010
Author: Huo Junde | Citation: Nucl. Data Sheets 109, 787 (2008) | Cutoff date: 30-Apr-2007
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=7290 keV 40 | S(n)= 4160 keV 30 | S(p)= 14680 keV 30 | Q(α)= -7925 keV 29 | ||
Reference: 2021WA16 |
References: | |||
A | 55Sc β- decay (96 MS) | B | 56Sc β-n decay (75 MS) |
C | 9Be(48Ca,2pγ) | D | 9Be(56Ti,55TiG) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | Final Levels | |
0.0 | ABCD | (1/2)- | 1.3 s 1 % β- = 100 | ||||
591.7 3 | ABC | (5/2-) | 591.7 3 | 100 | 0.0 | (1/2)- | |
955 6 | D | (3/2)- | 955 6 | | 0.0 | (1/2)- | |
1795.6 4 | ABC | (7/2-) | 1203.8 3 | 100 | 591.7 | (5/2-) | |
2145.7 4 | A C | (9/2-) | 349.6 7 1554.1 3 | 22 11 100 11 | 1795.6 591.7 | (7/2-) (5/2-) | |
2507.9 5 | A | (5/2-,7/2-,9/2-) | 712.3 3 | 100 | 1795.6 | (7/2-) | |
2805.7 7 | C | (13/2-) | 660.0 5 | 100 | 2145.7 | (9/2-) | |
3580.7 9 | C | (17/2-) | 775.0 5 | 100 | 2805.7 | (13/2-) | |
5461.8 10 | C | (19/2-) | 1881.0 5 | 100 | 3580.7 | (17/2-) |
E(level): From least-squares fit to Eγ data
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | Final Levels | ||
Band 1 - Yrast sequence. | |||||||
591.7 3 | (5/2-) | ||||||
1795.6 4 | (7/2-) | 1203.8 3 | 100 | 591.7 | (5/2-) | ||
2145.7 4 | (9/2-) | 349.6 7 1554.1 3 | 22 11 100 11 | 1795.6 591.7 | (7/2-) (5/2-) | ||
2805.7 7 | (13/2-) | 660.0 5 | 100 | 2145.7 | (9/2-) | ||
3580.7 9 | (17/2-) | 775.0 5 | 100 | 2805.7 | (13/2-) | ||
5461.8 10 | (19/2-) | 1881.0 5 | 100 | 3580.7 | (17/2-) |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | (1/2)- | 1.3 s 1 % β- = 100 | Dominant configuration=[π(f7/22)ν(f7/28, p3/24)]0+~#νp1/21 (2007Zh36). |
591.7 | (5/2-) | Dominant configuration=[π(f7/22)#ν(f7/28,p3/24)] 0+~#νf5/21 (2007Zh36). Jπ(level): As proposed in 9Be(48Ca,2pγ) (2007Zh37) based on yrast sequence and assigned configurations. | |
955 | (3/2)- | Dominant configuration=[π(f7/22)#ν(f7/28,p3/24)] 0+~#νp3/21 (2007Zh36). | |
1795.6 | (7/2-) | Dominant configurations of 3p-3h state= πf7/22~#ν(f7/28p3/23p1/21f5/21) and πf7/22~#ν(f7/28p3/24f5/21) (2007Zh36). Jπ(level): As proposed in 9Be(48Ca,2pγ) (2007Zh37) based on yrast sequence and assigned configurations. | |
2145.7 | (9/2-) | Dominant configuration=πf7/22~# ν[(f7/28p3/24)4+p1/21] (2007Zh36). Jπ(level): As proposed in 9Be(48Ca,2pγ) (2007Zh37) based on yrast sequence and assigned configurations. | |
2805.7 | (13/2-) | Dominant configuration=πf7/22~# ν[(f7/28p3/24)6+p1/21] (2007Zh36). Jπ(level): As proposed in 9Be(48Ca,2pγ) (2007Zh37) based on yrast sequence and assigned configurations. | |
3580.7 | (17/2-) | Dominant configuration=πf7/22~# ν[(f7/28p3/24)6+f5/21] (2007Zh36). Jπ(level): As proposed in 9Be(48Ca,2pγ) (2007Zh37) based on yrast sequence and assigned configurations. | |
5461.8 | (19/2-) | Dominant configuration= πf7/22~#ν(f7/28p3/23p1/21f5/21) (2007Zh36). Jπ(level): As proposed in 9Be(48Ca,2pγ) (2007Zh37) based on yrast sequence and assigned configurations. |
E(level) | E(gamma) | Comments |
591.7 | 591.7 | E(γ): other: 592.0 5 in 9Be(48Ca,2pγ). From 55Sc β- decay (2003Ma56) |
955 | 955 | E(γ): from 9Be(56Ti,55Tiγ) (2009Ma16) |
1795.6 | 1203.8 | E(γ): other: 1204.0 5 in 9Be(48Ca,2pγ). From 55Sc β- decay (2003Ma56) |
2145.7 | 349.6 | E(γ): other: 351.0 5 in 9Be(48Ca,2pγ). From 55Sc β- decay (2003Ma56) I(γ): from 55Sc β- decay | 1554.1 | E(γ): other: 1555.0 5 in 9Be(48Ca,2pγ). From 55Sc β- decay (2003Ma56) I(γ): from 55Sc β- decay |
2507.9 | 712.3 | E(γ): From 55Sc β- decay (2003Ma56) |
2805.7 | 660.0 | E(γ): From 9Be(48Ca,2pγ) (2007Zh37) |
3580.7 | 775.0 | E(γ): From 9Be(48Ca,2pγ) (2007Zh37) |
5461.8 | 1881.0 | E(γ): From 9Be(48Ca,2pγ) (2007Zh37) |
1990Tu01, 1994Se12: mass excess of 55Ti measured in Th(p,F),E=800 MeV, followed by separation of fragments by α/Q using the Time-of-Flight Isochronous (TOFI) spectrometer at the Los Alamos Meson Physics Facility. Deduced mass excess=-41.81 MeV 24 (1994Se12) and -41.59 MeV 26 (1990Tu01) for 55Ti, in agreement with evaluated mass excess of -41832 keV 29 (2021Wa16).
1996Do23: 55Ti produced and identified in 9Be(65Cu,X), E=64.5 MeV/nucleon reaction using LISE3 separator at GANIL facility. Measured γ spectrum, (implants)β and (implants)βγ-correlated events from which half-life of 55Ti decay was extracted.
1998Am04: 55Ti produced in 9Be(86Kr,X),E=500 MeV/nucleon reaction using FRS fragment separator at GSI facility. Measured half-life of 55Ti decay from (implants)(decay events)-correlated decay curve, with a total of 557 implants of 55Ti.
2003Ma56: 55Ti produced in fragmentation of 140-MeV 86Kr34+ beam incident on a 9Be target at NSCL-MSU. The secondary fragments were selected in the A1900 fragment separator, and implanted in a double-sided Si microstrip detector to detect β particles from decay of fragments. Measured Eγ, Iγ, γγ-coin, βγ-coin, half-life of 55Ti decay using SeGA array with six segmented Ge detectors.
Mass measurement: 2018Le03
Theoretical calculations: five primary references (four for structure and one for 55Ti decay) retrieved from the NSR database at www.nndc.bnl.gov/nsr/. These are listed in this dataset under ’document’ records.
Levels: Configurations given in comments are from 2007Zh37 in 9Be(48Ca,2pγ), based on shell-model calculations
Q-value: S(2n)=11094 29, S(2p)=27020 50, Q(β-n)=-10 30 (2021Wa16)