Giá trị ft của sự phân rã beta Fermi siêu cho phép

Science China Physics, Mechanics & Astronomy - Tập 56 - Trang 718-723 - 2013
Abdullah Engin Çalik1, Murat Gerçeklioğlu2, Cevad Selam3
1Department of Physics, Faculty of Arts and Sciences, Dumlupınar University, Kütahya, Turkey
2Department of Physics, Faculty of Science, Ege University, Bornova, Izmir, Turkey
3Department of Physics, Faculty of Arts and Sciences, Muş Alparslan University, Muş, Turkey

Tóm tắt

Trong công trình này, các giá trị ft của các quá trình phân rã beta Fermi siêu cho phép 0+→0+ đã được nghiên cứu. Trong các phép tính, mô hình vỏ đã được sửa đổi bằng phương pháp phục hồi của Pyatov do sự phá vỡ đồng các và các phần tử ma trận chuyển tiếp đã được xác định bằng phương pháp gần đúng pha ngẫu nhiên quasi-particle (QRPA).

Từ khóa


Tài liệu tham khảo

Wilkinson D H. Isospin in Nuclear Physics. Amsterdam: North-Holland, 1969. 115–172 Hardy J C, Towner I S. Superallowed 0+→0+ nuclear β decays: A critical survey with tests of the conserved vector current hypothesis and the standard model. Phys Rev C, 2005, 71: 055501 Towner I S, Hardy J C. Superallowed 0+→0+ nuclear β-decays. Nucl Phys A, 1973, 205: 33–55 Hardy J C, Towner I S. Superallowed 0+→0+ nuclear β-decays and Cabibbo universality. Nucl Phys A, 1975, 254: 221–240 Towner I S, Hardy J C, Harvey M. Analogue symmetry breaking in superallowed fermi β-decay. Nucl Phys A, 1977, 284: 269–281 Towner I S, Hardy J C. Calculated corrections to superallowed Fermi β decay: New evaluation of the nuclear-structure-dependent terms. Phys Rev C, 2002, 66: 035501 Towner I S, Hardy J C. Improved calculation of the isospin-symmetry-breaking corrections to superallowed Fermi β decay. Phys Rev C, 2008, 77: 025501 Hardy J C, Towner I S. Superallowed 0+→0+ nuclear β decays: A new survey with precision tests of the conserved vector current hypothesis and the standard model. Phys Rev C, 2009, 79: 055502 Hardy J C, Towner I S. Superallowed nuclear β decay: Symmetry breaking, CVC and CKM unitarity. Nucl Phys A, 2010, 844: 138c–142c Towner I S, Hardy J C. The evulation of V ud and its impact on the unitarity of the Cabbibo-Kobayashi-Maskawa quark-mixing matrix. Rep Prog Phys, 2010, 73: 046301 Ormand W E, Brown B A. Corrections to the Fermi matrix element for superallowed β decay. Phys Rev Lett, 1989, 62: 866–869 Ormand W E, Brown B A. Isospin-mixing corrections for fp-shell Fermi transitions. Phys Rev C, 1995, 52: 2455–2460 Barker F C. On the nuclear-mismatch correction for superallowed 0+ → 0+ beta decays. Nucl Phys A, 1992, 537: 134–146 Barker F C. Calculated values of the nuclear-mismatch correction for superallowed 0+→0+ beta decays. Nucl Phys A, 1994, 579: 62–74 Sagava H, Van Giai N, Suzuki T. Effect of isospin mixing on superallowed Fermi β decay. Phys Rev C, 1996, 53: 2163–2170 Navrátil P, Barrett B R, Ormand W E. Large-basis shell-model calculation of the 10C→10B Fermi matrix element. Phys Rev C, 1997, 56: 2542–2548 Satula W, Dobaczewski J, Nazarewicz W, et al. Isospin mixing in nuclei arround N ≈ Z and superallowed beta decay. Acta Phys Pol B, 2011, 42: 415–425 Satula W, Dobaczewski J, Nazarewicz W, et al. Microscopic calculations of isospin-breaking corrections to superallowe beta decay. Phys Rev Lett, 2011, 106: 132502 Wilkinson D H. The mismatch problem in super-allowed Fermi β-decay. Phys Lett B, 1976, 65: 9–11 Wilkinson D H. Methodology for superallowed Fermi beta-decay Part III. Analysis. Nucl Instrum Methods A, 1993, 335: 201–218 Wilkinson D H. Super-allowed Fermi beta-decay revisited. Nucl Instrum Methods A, 2002, 488: 654–669 Grinyer G F, Svensson C E, Brown B A. Extraction of Vud from superallowed Fermi beta decay by the Wilkinson techniques. Nucl Instrum Methods A, 2010, 622: 236–245 Liang H, Van Giai N, Meng J. Spin-isospin resonances: A self-consistent covariant description. Phys Rev Lett, 2008, 101: 122502 Liang H, Van Giai N, Meng J. Isospin corrections for Fermi β decay in self-consistent relativistic random-phase approximation approaches. Phys Rev C, 2009, 79: 064316 Çalık A E, Gerçeklioğlu M, Salamov D I. Superallowed Fermi beta decay and the unitarity of the CKM matrix. Z Naturforsch, 2009, 64a: 865–871 Bohr A, Mottelson B. Nuclear Structure Volume I: Single-Particle Model. New York: W A Benjamin Inc, 1969 Pyatov N I, Salamov D I. Conservation laws and collective exciations in nuclei. Nukleonika, 1977, 22: 127–141. Pyatov N I, Salamov D I, Baznat M I, et al. Self-consistent theory of Coulomb isospin mixing in nuclei. Sov J Nucl Phys, 1979, 29: 10–17 Babacan T, Salamov D, Kücükbursa A, et al. The effect of the pairing interaction on the energies of isobar analogue resonances in 112-124Sb and isospin admixture in 100-124Sn isotopes. J Phys G, 2004, 30: 759–770 Kucukbursa A, Salamov D I, Babacan T, et al. An investigation of the influence of the pairing correlations on the properties of the isobar analog resonances in A=208 nuclei. Pramana, 2004, 63: 947–961 Babacan T, Salamov D I, Kucukbursa A. Gamow-Teller 1+ states in 208Bi. Phys Rev C, 2005, 71: 037303 Salamov D I, Babacan T, Kücükbursa A, et al. The isospin admixture of the ground state and the properties of the isobar resonances in medium and heavy nuclei. Pramana, 2006, 66: 1105–1110 Babacan T, Salamov D I, Kucukbursa A. Self-consistent calculations of isospin admixtures in the ground states of the N=Z nuclei in the mass region of 50-100. Nucl Phys A, 2007, 788: 279c–283c Çakmak N, Ünlü S, Selam C. Low-lying Gamow-Teller transitions in spherical nuclei. Phys Atom Nucl, 2012, 75: 8–16 Soloviev V G. Theory of Complex Nuclei. New York: Pergamon, 1976