Journal ArticleDOI
Asymmetry of Beta-Ray Angular Distribution in Polarized 12B and 12N and Second-Class Current
TLDR
In this paper, an explicit formula for the beta-ray angular distribution is given by taking into account the radiative corrections, Coulomb corrections of the :finite-size nucleus, weak magnetis:rp, induced pseudoscalar, second-class induced tensor, and contributions of the d-wave leptons.Abstract:
An explicit. formula for beta-ray . angular distribution. in the decay of polarized nuclei is given by taking into account the radiative corrections, Coulomb corrections of the :finite-size nucleus, weak magnetis:rp, induced pseudoscalar, second-class induced tensor, and contributions of the d-wave'leptons. Generally speaking, the radiative corrections ~re aJmost the same for Po (cosO) and P1 (cosO) terms. In particular, the . logarit:(?.mi<:! divergence disappears for the asymmetry factor in the case, of the Gamow Teller transitions. And the effeet of the induced pseudoscalar current is extremely small. Experimental data on the beta decays of polarized 1'2B and 12N are carefullyread more
Citations
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Journal ArticleDOI
Energy levels of light nuclei A = 11-12
TL;DR: In this paper, the energy levels of A = 11 and 12 nuclei with emphasis on material leading to information about the structure of the A =11 and 12 systems were analyzed.
Journal ArticleDOI
Neutrino reaction cross sections on 12C target
TL;DR: In this article, the cross sections of neutrino-induced superallowed transitions on 12 C targets were estimated in a model-independent manner with a direct evaluation of the nuclear matrix element from the experimental data.
Journal ArticleDOI
Average polarization of 12B in 12C(μ, ν) 12B(g.s.) reaction: Helicity of the π-decay muon and nature of the weak coupling
A. Possoz,P. Deschepper,L. Grenacs,Philippe Lebrun,J. Lehmann,L. Palffy,D. De Moura Goncalves,C. Samour,V.L. Telegdi +8 more
TL;DR: In this article, the helicity, /b h/sup -/, of mu /sup -/ in pi-decay has been determined as positive (/b h//sup -/>or=+0.90) from the average polarization, / b P/ /sub av/ equiv, of /sup 12/B produced in the mu /Sup -/+/sup 12 /C rarr nu /sub mu /+/sup 14/B reaction.
Journal ArticleDOI
New limit of the G-parity irregular weak nucleon current detected in β decays of spin aligned 12B and 12N
K. Minamisono,Kensaku Matsuta,Tadanori Minamisono,Takashi Yamaguchi,T. Sumikama,T. Nagatomo,Masako Ogura,Takehisa Iwakoshi,M. Fukuda,Mototsugu Mihara,K. Koshigiri,Masato Morita +11 more
TL;DR: In this paper, the G-parity irregular induced tensor form factor in the weak nucleon axial vector current has been precisely determined by measuring the alignment correlation terms in the $\ensuremath{\beta}$-ray angular distributions of the purely spin aligned mirror pair.
Journal ArticleDOI
Beta-ray angular distribution in aligned 12B and 12N and G-parity irregular induced tensor current
TL;DR: In this article, an explicit formula for the beta-ray angular distribution by taking into account the radiative corrections, Coulomb corrections of the finite-size nucleus, weak magnetism, induced pseudoscalar, second-class induced tensor, and contributions of the d-wave leptons was made.
References
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Journal ArticleDOI
Effective interactions for the 1p shell
S. Cohen,Dieter Kurath +1 more
TL;DR: In this paper, the 1p shell was obtained by fitting energy data about nuclear levels and the magnetic dipole moments and probabilities for M1 gamma transitions and beta decay were calculated with the resultant wave functions.
Journal ArticleDOI
Charge symmetry of weak interactions
TL;DR: In this paper, it was shown that no interference between $V$ and $A$ may occur in any experiment which treats both leptons identically and in which no parity nonconservation effects are measured.
Journal ArticleDOI
Radiative Corrections to Fermi Interactions
TL;DR: In this article, the decay spectrum of polarized muons is recalculated taking into account a mistake in our previous work which was recently pointed out by Berman, and the radiative corrections to the spectrum and lifetime of the nuclear β decay arising from the charge interactions of the electron and proton are also studied.
Journal ArticleDOI
Recoil effects in allowed beta decay: The elementary particle approach
TL;DR: In this article, all second forbidden terms are studied using the elementary particle approach including all second-bounded terms, and the restrictions due to various symmetry assumptions are analyzed, as well as the problem of Coulomb corrections.
Journal ArticleDOI
Charge conjugation, a new quantum numberG, and selection rules concerning a nucleon-antinucleon system
T. D. Lee,C. N. Yang +1 more
TL;DR: In this article, a new quantum number is introduced which leads to selection rules concerning transitions between states with heavy particle number = 0. They are applied to the system nucleon-antinucleon; it is also shown that they can be extended to include the conservation of strangeness.