Weak Interaction Rates Of sd-Shell Nuclei In Stellar Environment Calculated in the Proton-Neutron Quasiparticle Random Phase Approximation

Abstract

Allowed weak interaction rates for sd-shell nuclei in stellar environment are calculated using a generalized form of proton-neutron quasiparticle RPA model with separable Gamow-Teller forces. Twelve different weak rates are calculated for each nucleus as a function of temperature and density. This project consists of calculation of weak rates for a total of 709 nuclei with masses ranging from A = 18 to 100. This paper contains calculated weak rates for sd-shell nuclei. The calculated capture and decay rates take into consideration the latest experimental energy levels and ft value compilations. The results are also compared with earlier works. Particle emission processes from excited states, previously ignored, are taken into account, and are found to significantly affect some beta decay rates.

64 pages, 17 figures, rate tables are presented in an abbreviated form to save space. Complete rate tables can be seen in the original paper

Cited by in corpus (76)

• Nuclear weak-interaction processes in stars
• Improved estimate of electron capture rates on nuclei during stellar core collapse
• Explosive Nucleosynthesis in Sub-Chandrasekhar Mass White Dwarf Models for Type Ia Supernovae: Dependence on Model Parameters
• Stellar electron-capture rates calculated with the finite-temperature relativistic random-phase approximation
• Decoding Beta-Decay Systematics: A Global Statistical Model for Beta^- Halflives
• Evolution of ONeMg Core in Super-AGB Stars towards Electron-Capture Supernovae: Effects of Updated Electron-Capture Rate
• Microscopic Calculations of Weak Interaction Rates of Nuclei in Stellar Environment for A = 18 to 100
• Electron Capture Supernovae of Super-AGB Stars: Sensitivity on Input Physics
• Stellar electron-capture rates in pf-shell nuclei from quasiparticle random-phase approximation calculations
• Stellar weak decay rates in neutron-deficient medium-mass nuclei
• Gamow-Teller strength distributions in Fe and Ni stable isotopes
• Gamow-Teller strength distributions and electron capture rates for 55Co and 56Ni
• Half-lives of rp-process waiting point nuclei
• Weak interaction rates for Kr and Sr waiting-point nuclei under rp-process conditions
• Probing thermonuclear supernova explosions with neutrinos
• Stellar electron capture rates on neutron-rich nuclei and their impact on core-collapse
• Gamow-Teller transitions and deformation in the proton-neutron random phase approximation
• Comparative study of Gamow-Teller strength distributions in the odd-odd nucleus 50V and its impact on electron capture rates in astrophysical environments
• Weak-interaction mediated rates on iron isotopes for presupernova evolution of massive stars
• Impact of electron capture rates on nuclei far from stability on core-collapse supernovae
• Ground and excited states Gamow-Teller strength distributions of iron isotopes and associated capture rates for core-collapse simulations
• Gamow-Teller transitions from 24Mg and its impact on the electron capture rates in the O + Ne + Mg cores of stars
• Investigation of important weak interaction nuclei in presupernova evolution
• Contribution of excited states to stellar weak-interaction rates in odd-A nuclei
• Tests of the random phase approximation for transition strengths
• Neutrino energy loss rates and positron capture rates on ${}^{55}$Co for presupernova and supernova physics
• $\beta$-decay half-lives and nuclear structure of exotic proton-rich waiting point nuclei under $rp$-process conditions
• Nickel isotopes in stellar matter
• First-forbidden $\beta$-decay rates, energy rates of $\beta$-delayed neutrons and probability of $\beta$-delayed neutron emissions for neutron-rich nickel isotopes
• Electron capture cross sections and nuclear partition functions for fp-shell nuclei
• The nuclear ground-state properties and stellar electron emission rates of 76Fe, 78Ni, 80Zn, 126Ru, 128Pd and 130Cd using RMF and pn-QRPA models
• Stellar ${\beta }^{\pm }$ decay rates of iron isotopes and its implications in astrophysics
• Investigation of Nuclear Structure and $\beta$-decay Properties of As Isotopes
• Unique first-forbidden $\beta$-decay transitions in odd-odd and even-even heavy nuclei
• First-forbidden transitions and stellar $\beta$-decay rates of Zn and Ge isotopes
• rp-Process weak-interaction mediated rates of waiting-point nuclei
• Stellar neutrino energy loss rates due to ${}^{24}$Mg suitable for O+Ne+Mg core simulations
• Spin-isospin transitions in chromium isotopes within the quasiparticle random phase approximation
• $\beta$-decay half-lives at finite temperatures for N=82 isotones
• Study of Gamow-Teller transitions in isotopes of titanium within the quasi particle random phase approximation
• Temperature-dependent nuclear partition functions and abundances in stellar interior
• Nuclear structure and weak rates of heavy waiting point nuclei under rp-process conditions
• Investigation of Gamow Teller Transition Properties in 56-64Ni Isotopes Using QRPA Methods
• Comparison of Gamow-Teller strengths in the random phase approximation
• Nuclear Structure Properties of even-even Chromium Isotopes and the E ect of Deformation on Calculated Electron Capture Cross Sections
• Gamow-Teller strength distributions and neutrino energy loss rates due to chromium isotopes in stellar matter
• Beta decay and electron capture rates on manganese isotopes in astrophysical environments
• Unique first-forbidden $\beta$-decay rates for neutron-rich nickel isotopes in stellar environment
• Gamow-Teller strength and lepton captures rates on 66-71Ni in stellar matter
• Re examination of the effect of Pairing Gaps on Gamow Teller Strength Distributions and beta decay Rates
• Re analysis of Temperature Dependent Neutron Capture Rates and Stellar \b{eta} decay Rates of 95 98Mo
• Neutrino and antineutrino energy loss rates in massive stars due to isotopes of titanium
• Nuclear Structure Properties and Stellar Weak Rates for 76Se: Unblocking of the Gamow Teller Strength
• Study of Gamow-Teller strength and associated weak-rates on odd-A nuclei in stellar matter
• Investigation of effects of pairing correlations on calculated $\beta$-decay half-lives of fp-shell nuclei
• Validity of Brink Axel Hypothesis for calculations of allowed stellar weak rates of heavy nuclei
• Stellar Weak Rates and Mass Fractions of 20 Most Important $fp$-shell Nuclei with $A<65$
• Neutrino cooling rates due to ${}^{54,55,56}$Fe for presupernova evolution of massive stars
• Allowed and unique first-forbidden stellar electron emission rates of neutron-rich copper isotopes
• Nuclear structure properties and weak interaction rates of even-even Fe isotopes
• Study of \b{eta}-Decay, log ft Values and Nuclear Structure Properties of Neutron-rich Ge Nuclei
• Energy Rates Due to Weak Decay Rates of Vanadium Isotopes in Stellar Environment
• Expanded calculations of pn-QRPA electron capture rates on ${}^{55}$Co for presupernova and supernova physics
• Electron capture strength on odd-A nucleus ${}^{59}$Co in explosive astrophysical environment
• Warm dark matter sterile neutrinos in electron capture and beta decay spectra
• Detailed microscopic calculation of stellar electron and positron capture rates on ${}^{24}$Mg for O+Ne+Mg core simulations
• $\beta$-decay of key titanium isotopes in stellar environment
• $\beta$-decay properties of some astrophysically important Sc-isotopes
• Lepton capture rates due to isotopes of vanadium in astrophysical environment
• Gamow-Teller strength distribution in proton-rich nucleus ${}^{57}$Zn and its implications in astrophysics
• Nuclear structure properties and decay rates of molybdenum isotopes
• Energy rates due to Fe isotopes during presupernova evolution of massive stars
• Neutrino cooling rates due to nickel isotopes for presupernova evolution of massive stars
• Impact of Coulomb Correction Factor on Rate of Change of Lepton Fraction during Presupernova Evolution
• Gamma Ray Heating and Neutrino Cooling Rates due to Weak Interaction Processes on sd-shell Nuclei in Stellar Cores
• Investigation of weak-rates for odd-A nuclei for presupernova simulations