A determination of the mass and some energy levels of the nuclide 44Ar

doi:10.1016/0370-2693(76)90315-4

Physics Letters B

Volume 64, Issue 2, 13 September 1976, Pages 143-146

https://doi.org/10.1016/0370-2693(76)90315-4 Get rights and content

Abstract

The mass and some energy levels of the nuclide ⁴⁴Ar have been determined from the ⁴⁸Ca(³He, ⁷Be)⁴⁴Ar reaction. A comparison with theoretical values of the mass is made.

References (15)

R.E. Larson et al.
Nucl. Phys.
(1969)
J. Hudis et al.
Nucl. Phys.
(1970)
J.E. Spencer et al.
Nucl. Instr.
(1967)
G.F. Trentelman et al.
Nucl. Instr.
(1970)
W.A. Lanford
Bull. Am. Phys. Soc.
(1972)
C. Maples et al.
Nucl. Reaction Q Values
Univ. of Calif., Berkeley, UCRL-16964
(1967)
W.F. Steele, P.A. Smith, J.E. Finck and G.M. Crawley, Nucl. Phys., to be...

There are more references available in the full text version of this article.

Cited by (11)

Nuclear Structure and Decay Data for A=44 Isobars
2023, Nuclear Data Sheets
Experimental nuclear spectroscopic data are evaluated for 12 known nuclides of mass number A=44 (Si, P, S, Cl, Ar, K, Ca, Sc, Ti, V, Cr, Mn). Detailed evaluated information are presented for each reaction and decay. Recommended values combining all available data are provided for all spectroscopic properties of each level, γ-ray, and decay radiation. No excited states have yet been identified in ⁴⁴Si, ⁴⁴P, ⁴⁴Cr, and ⁴⁴Mn. Information for excited states in ⁴⁴Cl and ⁴⁴V are limited. Nuclides of ⁴⁴S, ⁴⁴Ar and ⁴⁴K have been studied via only a few reactions and decays, while ⁴⁴Ca, ⁴⁴Sc and ⁴⁴Ti are the most investigated nuclides through various reactions and decays. Evaluators note that the half-life of the g.s. of ⁴⁴S has been measured independently, with fairly good statistics, in three references, most precise being 100 ms 1 by 2004Gr20, but this value is in disagreement with the values of 125.5 ms 25 and 119 ms 6 by 2022Tr03, and 123 ms 10 by 1995So03. We adopted the unweighted average of this discrepant dataset. Another outstanding issue is that of the β⁺-delayed proton decay of ⁴⁴Cr g.s. to ⁴⁴V, where the T=2, 0⁺ IAS state in ⁴⁴V is expected to be strongly populated by a superallowed β transition, but has not been definitely identified as discussed in detail by 2020Fu05. A detailed study of ⁴⁴Cr decay is required to unravel the status of the T=2, 0⁺ IAS state in ⁴⁴V. This work supersedes earlier ENSDF evaluations of A=44 by 2011Ch39 and 1999Ca45.
Systematic trends of 0<inf>2</inf>+, 1<inf>1</inf>−, 3<inf>1</inf>− and 2<inf>1</inf>+ excited states in even-even nuclei
2022, Nuclear Physics A
The spin and parity ( $J^{π}$ ) assignments in even-even nuclei were reviewed across the nuclear chart using the Evaluated Nuclear Structure Data File (ENSDF). The prevalence of 2 $_{1}^{+}$ first or lowest excited states is confirmed. The properties of 0 $_{2}^{+}$ , 1 $_{1}^{-}$ , and 3 $_{1}^{-}$ lowest excited states were reexamined using the ENSDF data evaluation procedures. The $J^{π}$ systematic trends and correlations between level quantum numbers and nuclear physics phenomena are discussed.
Nuclear Data Sheets for A = 44
2011, Nuclear Data Sheets
The experimental data are evaluated for known nuclides of mass number A=44 (Si,P,S,Cl,Ar,K,Ca,Sc,Ti,V, Cr,Mn). Detailed evaluated level properties and related information are presented, including adopted values of level and γ-ray energies, decay data (energies, intensities and placement of radiations), and other spectroscopic data. This work supersedes earlier full evaluations of A=44 published by 1999Ca45 and 1990En08 (also 1998En04 update).
No excited states are known in ⁴⁴Si, ⁴⁴P, ⁴⁴Cr, ⁴⁴Mn. Only one excited state is known in 44V and its Isobaric Analog State (IAS) has been observed but with the level energy not known. Information for ⁴⁴S, ⁴⁴Cl and ⁴⁴Ar is limited and their radioactive decay schemes seem incomplete in view of large Q values and known excitations much below than allowed by Q values. The ⁴⁴Ca, ⁴⁴Sc and ⁴⁴Ti nuclides remain as the most extensively studied from many different reactions and decays.
Nuclear data sheets for A = 44
1999, Nuclear Data Sheets
Nuclear spectroscopic information for the known nuclides of mass 44 (P,S,Cl,Ar,K,Ca,Sc,Ti,V,Mn,Cr) has been evaluated. The principal sources of the adopted levels presented are the evaluations of P. Endt (1999En08,1998En04,1978En02). The data sets for reactions and decays, including all available gamma-ray data, are based mostly on original literature. Recent high-spin and (⁶Li,d) data for ⁴⁴Ti and new measurements of half-life of ⁴⁴Ti are incorporated.
Energy levels of A = 21-44 nuclei (VII)
1990, Nuclear Physics, Section A
The experimentally determined properties of A = 21–44 nuclides are complied and evaluated with special emphasis on nuclear spectroscopy.
Separate tables for each of the nuclides reviewed present the available information about the following properties (in this order):
- •
  - excitation energies E_x,
- •
  - γ-ray branching ratios b(γ),
- •
  - γ-ray mixing ratios σ,
- •
  - lifetimes γ_m or widths Λ,
- •
  - neutron, proton, or α-particle resonances,
- •
  - partial widths,
- •
  - single-nucleon transfer reactions,
- •
  - beta-decay,
- •
  - arguments for spin and parity (J^π) and isospin (T) assignments.
For each nuclide a master table summarizing the “best” or adopted values for E_x, J^π; T and τ_m or Λ precedes the auxiliary tables listed above.
The review of each A-chain concludes with a discussion of isospin multiplets.
Figures are presented of the level schemes of all nuclei and, for each A-chain, an overview of the relative energies of the ground states and lowest analogue states of all nuclei in the chain.
Energy levels of A = 21-44 nuclei (VI)
1978, Nuclear Physics, Section A
The experimentally determined properties of the A = 21–44 nuclei are compiled and evaluated, special emphasis being given to nuclear structure.
Separate tables for each of the nuclides reviewed give all available information about the following properties in this order: - excitation energies (E_x),
1. •
  - γ-ray branching ratios,
2. •
  - γ-ray mixing ratios (δ),
3. •
  - lifetimes (τ_m) or widths (Λ),
4. •
  - spin and parity (J^π) and isospin (T) assignments, and
5. •
  - any other data, on single-particle transfer, resonance levels, etc.
The “best” (or adopted) values for E_x, τ_m or Λ, J^π and T are summarized in a master table.
The review of each A-chain concludes with - a discussion of isospin multiplets,
1. •
  - a few remarks about the experimental situation, and
2. •
  - a compilation of references to relevant theoretical papers.

View all citing articles on Scopus

^☆: Work supported by the National Science Foundation.

^∗: Present address, Duke University, Durham, North Carolina, USA.

View full text

Development of a solenoid spectrometer for nuclear astrophysical studies of fusion reactions near stellar energies
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 871, 2017, pp. 35-41
X. Fang, …, M. Wiescher
Higher-rank discrete symmetries in the IBM I. Octahedral shapes: General Hamiltonian
Nuclear Physics A, Volume 938, 2015, pp. 45-58
P. Van Isacker, …, S. Zerguine
Position sensitive resonant Schottky cavities for heavy ion storage rings
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Volume 463, 2020, pp. 320-323
D. Dmytriiev, …, Th. Stöhlker
Separated flow operation of the SHARAQ spectrometer for in-flight proton-decay experiments
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 830, 2016, pp. 233-242
M. Dozono, …, S. Shimoura
α-Like quartetting in the excited states of proton-neutron pairing Hamiltonians
Physics Letters B, Volume 820, 2021, Article 136476
M. Sambataro, N. Sandulescu
Multistability and hidden attractors in a relay system with hysteresis
Physica D: Nonlinear Phenomena, Volume 306, 2015, pp. 6-15
Zhanybai T. Zhusubaliyev, …, Roman A. Nabokov

Article preview

Physics Letters B

Abstract

References (15)

Nucl. Phys.

Nucl. Phys.

Nucl. Instr.

Nucl. Instr.

Bull. Am. Phys. Soc.

Nucl. Reaction Q Values

Univ. of Calif., Berkeley, UCRL-16964

Cited by (11)

Nuclear Structure and Decay Data for A=44 Isobars

Systematic trends of 0<inf>2</inf><sup>+</sup>, 1<inf>1</inf><sup>−</sup>, 3<inf>1</inf><sup>−</sup> and 2<inf>1</inf><sup>+</sup> excited states in even-even nuclei

Nuclear Data Sheets for A = 44

Nuclear data sheets for A = 44

Energy levels of A = 21-44 nuclei (VII)

Energy levels of A = 21-44 nuclei (VI)

A determination of the mass and some energy levels of the nuclide 44Ar☆

Abstract

Nucl. Phys.

Nucl. Phys.

Nucl. Instr.

Nucl. Instr.

Bull. Am. Phys. Soc.

Nucl. Reaction Q Values

Univ. of Calif., Berkeley, UCRL-16964

A determination of the mass and some energy levels of the nuclide ⁴⁴Ar☆