NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = S.Bayegan Found 22 matches. 2021JE01 Eur.Phys.J. A 57, 39 (2021) S.Jesri, M.Moeini Arani, S.Bayegan Halo EFT calculation of charge form factor for two-neutron 6He halo nucleus: two-body resonant P-wave interaction NUCLEAR STRUCTURE 6He; calculated charge form factor with resonant P-wave interaction, the mean-square charge radius. Comparison with available data.
doi: 10.1140/epja/s10050-021-00352-8
2020AH04 Phys.Rev. C 102, 044001 (2020) M.Ahmadi, M.R.Hadizadeh, M.Radin, S.Bayegan Novel regularization scheme for nucleon-nucleon lattice simulations with effective field theory NUCLEAR STRUCTURE 2H; calculated binding energy, asymptotic normalization coefficient, low-energy constants (LECs) by solving the lattice form of the Lippmann-Schwinger equation with Lanczos technique; extracted S-wave effective range expansion (ERE) parameters; deduced impact of different powers of the regulator on the extracted ERE parameters as function of lattice spacing. Nuclear lattice effective field theory (NLEFT) for the bound state of two-nucleon systems. Comparison of predicted observables with experimental data.
doi: 10.1103/PhysRevC.102.044001
2020BE21 Eur.Phys.J. A 56, 158 (2020) B.Behzadmoghaddam, S.Bayegan, M.Moeini Arani Proton-proton fusion in new pionless EFT power counting NUCLEAR REACTIONS 1H(p, d), E ≈ 1.5 MeV; calculated zero-energy astrophysical S-factor, np 1S0 phase shift against Tlab=0-200 MeV, pp 1S0 phase shift, fusion σ of the reaction using pionless effective field theory with short-range interactions consideration of next-to-leading order including the Coulomb interactions the S-wave pp scattering; compared with Nijm93 results.
doi: 10.1140/epja/s10050-020-00166-0
2018NE01 Phys.Rev. C 97, 014001 (2018) H.Nematollahi, S.Bayegan, N.Mahboubi, M.Moeini Arani Parity-violating photon circular polarization in p + d → 3He + γ with pion-less effective field theory NUCLEAR REACTIONS 2H(p, 3Heγ), E=0.5-3.0 MeV; calculated photon circular polarization by investigating a complete set of the parity-violating electromagnetic transitions using pionless effective field theory formalism (pionless EFT). Comparison with experimental data.
doi: 10.1103/PhysRevC.97.014001
2017HA28 Int.J.Mod.Phys. E26, 1750079 (2017) M.R.Hadizadeh, M.Radin, S.Bayegan Comment on "Three-dimensional study of the six-body bound-state for the case of effective three-body configuration model" NUCLEAR STRUCTURE 6He; calculated binding energies using the solution of the coupled Faddeev-Yakubovsky integral equation in a three-dimensional scheme.
doi: 10.1142/S0218301317500793
2017MO27 Prog.Theor.Exp.Phys. 2017, 093D07 (2017) M.Moeini Arani, M.Radin, S.Bayegan n + n + α → 6He + γ reaction by effective field theory approach NUCLEAR REACTIONS 4He(2n, γ)6He, E<1.5 MeV; calculated scattering amplitude, total E1 strength function. Effective field theory approach.
doi: 10.1093/ptep/ptx119
2016MA75 Phys.Rev. C 94, 054003 (2016) N.Mahboubi, S.Bayegan, H.Nematollahi, M.Moeini Arani Longitudinal asymmetry and proton spin rotation p(pol)d scattering with pionless effective field theory NUCLEAR REACTIONS 2H(polarized p, p), E=0.7-3 MeV; calculated energy dependence of the longitudinal analyzing power, the spin rotation of the proton, and the parity violating (PV) two-body transitions diagrams with the inclusion of Coulomb interaction using pionless effective field theory formalism (EFT).
doi: 10.1103/PhysRevC.94.054003
2016NE10 Phys.Rev. C 94, 054004 (2016) H.Nematollahi, S.Bayegan, N.Mahboubi, M.Moeini Arani p+d → 3He + γ reaction with pionless effective field theory NUCLEAR REACTIONS 2H(p, γ)3He, E=0.5-3 MeV; calculated E1 and M1 cross sections, and compared with experimental data. Pionless effective field theory formalism (EFT) considering one-body currents up to the next-to-leading order (NLO).
doi: 10.1103/PhysRevC.94.054004
2014MO14 Phys.Rev. C 89, 064005 (2014) M.Moeini Arani, H.Nematollahi, N.Mahboubi, S.Bayegan New insight into the nd → 3Hγ process at thermal energy with pionless effective field theory NUCLEAR REACTIONS 2H(n, γ)3H, E=thermal; calculated amplitudes and total cross sections in the cluster-configuration space up to N2LO; deduced dominance of M1 transition at low energies. Pionless effective field theory [EFT] considering all one-body and two-body photon interaction diagrams. Comparison with other theoretical calculations and experimental data.
doi: 10.1103/PhysRevC.89.064005
2013MO29 Eur.Phys.J. A 49, 117 (2013) Parity-violating photon circular polarization in nd → 3Hγ with effective field theory at thermal energy NUCLEAR REACTIONS 2H(n, γ), E=thermal; calculated photon circular polarization using pionless effective field theory with parity-violating Lagrangian. Compared with previous calculation.
doi: 10.1140/epja/i2013-13117-5
2012SH02 Eur.Phys.J. A 48, 6 (2012) Triton photodisintegration in three-dimensional approach NUCLEAR REACTIONS 3H(γ, d), (γ, 2n), E=6-30 MeV; calculated σ using 3D Faddeev approach with AV18 NN force. Compared with published data.
doi: 10.1140/epja/i2012-12006-9
2011HA21 Phys.Rev. C 83, 054004 (2011) M.R.Hadizadeh, L.Tomio, S.Bayegan Solutions of the bound-state Faddeev-Yakubovsky equations in three dimensions by using NN and 3N potential models NUCLEAR STRUCTURE 3H, 4He; calculated binding energies, momentum space, bound state using Faddeev-Yakubovsky equations. Three-body forces, three-dimensional approach, non partial-wave decomposition.
doi: 10.1103/PhysRevC.83.054004
2010BA12 Nucl.Phys. A832, 1 (2010) S.Bayegan, M.Harzchi, M.A.Shalchi A realistic formalism for low-momentum effective interaction in three-dimensional approach
doi: 10.1016/j.nuclphysa.2009.11.006
2010HA35 Eur.Phys.J. A 46, 271 (2010) A spin-isospin-dependent 3N scattering formalism in a 3D Faddeev scheme
doi: 10.1140/epja/i2010-11039-4
2009BA25 Phys.Rev. C 79, 057001 (2009) S.Bayegan, M.A.Shalchi, M.R.Hadizadeh Three dimensional calculations of NN bound and scattering states with a chiral potential up to N3LO
doi: 10.1103/PhysRevC.79.057001
2008BA23 Phys.Rev. C 77, 064005 (2008) S.Bayegan, M.R.Hadizadeh, M.Harzchi Three-nucleon bound state in a spin-isospin dependent three dimensional approach NUCLEAR STRUCTURE 3H, 3He; calculated quantum numbers of spin-isospin states, binding energies, spin-isospin dependent potentials. Three-dimensional Fadeev integral equations.
doi: 10.1103/PhysRevC.77.064005
2008BA38 Prog.Theor.Phys.(Kyoto) 120, 887 (2008) S.Bayegan, M.R.Hadizadeh, W.Glockle A Realistic Formalism for 4N Bound State in a Three-Dimensional Yakubovsky Scheme
doi: 10.1143/PTP.120.887
2008BA51 Nucl.Phys. A814, 21 (2008) S.Bayegan, M.Harzchi, M.R.Hadizadeh Low-momentum effective interaction in the three-dimensional approach
doi: 10.1016/j.nuclphysa.2008.10.002
2008HA26 Eur.Phys.J. A 36, 201 (2008) Bound-state calculations of the three-dimensional Yakubovsky equations with the inclusion of three-body forces
doi: 10.1140/epja/i2008-10583-8
2005SA28 Nucl.Phys. A753, 291 (2005) Nd → 3Hγ with effective field theory NUCLEAR REACTIONS 2H(n, γ), E=20-200 keV; calculated σ. Pionless effective field theory, three-body force.
doi: 10.1016/j.nuclphysa.2005.03.004
2003HE18 Phys.Rev. C 68, 045205 (2003) M.Hedayati-Poor, S.Bayegan, H.S.Sherif Nonlocality and medium effects in the exclusive photoproduction of η mesons on nuclei NUCLEAR REACTIONS 12C(γ, pX)11B, E=750 MeV; 40Ca(γ, pX)39K, E=750 MeV; calculated η meson production σ(E, θ); deduced medium and nonlocal effects, resonance contribution. Relativistic model.
doi: 10.1103/PhysRevC.68.045205
2002BA21 Nucl.Phys. A699, 160c (2002) Effects of Finite Range Calculations on Photo-Production of Eta-Mesons from Complex Nuclei NUCLEAR REACTIONS 12C(γ, pX)11B, E=750 MeV; calculated η-meson production associated σ(E, θ); deduced role of finite range effects.
doi: 10.1016/S0375-9474(01)01487-7
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