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[en] Can the SO(10) model with one 10 and one 126 Higgs scalars give the observed masses and mixings of quarks and leptons without any other additional Higgs scalars? What is of the greatest interest to us is to know the minimum number of the Higgs scalars which can give the observed fermion mass spectra. This problem is systematically investigated, and it is concluded that the present data cannot exclude the SO(10) model with two Higgs scalars although this model cannot give the best fit values of the data
Journal
Nuclear Physics. B, Proceedings Supplements; ISSN 0920-5632; 
; CODEN NPBSE7; v. 111(1-3); p. 306-308
; CODEN NPBSE7; v. 111(1-3); p. 306-308
[en] We examine the constraints on the Maki-Nakagawa-Sakata lepton mixing matrix from the present and future experimental data of neutrino oscillation, tritium beta decay, and neutrinoless double beta decay for the Majorana neutrinos. We show that the small mixing angle solutions for solar neutrino problem are disfavored for small averaged mass (ν>) of neutrinoless double beta decay (≤0.01 eV) in the inverse neutrino mass hierarchy scenario. This is the case even in the normal mass hierarchy scenario except for a very restrictive value of the averaged neutrino mass ( ovr mν) of single beta decay. The lower mass bound for ovr mν is given from the present neutrino oscillation data. We obtain some relations between ν> and ovr mν. The constraints on the Majorana CP violating phases are also given
Journal
[en] General relativity is formulated in the framework of Yang-Mills theory whose gauge group is O(3,2). This theory allows the global topological charge of spin without breaking Bianchi identity. β function in the renormalization group equation is negative and the confinement of gravity is expected. The confinement radius is, however, actually infinite and we can read off the relation that the average mass density of the present universe is exactly equal to the critical value rhosub(c)(t) = 6H2(t)/K2. (orig.)
Journal
Zeitschrift fuer Physik. C, Particles and Fields; ISSN 0170-9739; ; v. 8(4); p. 21-24
; v. 8(4); p. 21-24
No abstract available
Journal
[en] If the functional integral formalism with Becchi-Rouet-Stora prescription is assumed, the gauge invariance of graviton scattering amplitude is proved in full orders. This enables one to show the universality of gravitation and others. (author)
Journal
Nuovo Cimento. A; ISSN 0369-3546; ; v. 56(4); p. 405-410
; v. 56(4); p. 405-410
[en] Unitarity of supergravity is studied in a general covariant gauge. Except for the Feynman gauge, propagators of gauge fields have double poles. However these poles cannot contribute to the cut diagrams, and 't Hooft's diagramatic prescription is applicable to the theory in a general covariant gauge. (Auth.)
Journal
Nucl. Phys., B; ISSN 0029-5582; ; v. 153(3-4); p. 467-474
; v. 153(3-4); p. 467-474
[en] General relativity is formulated in the framework of Yang-Mills theory whose gauge group is O(3,2). This theory allows the global topological charge of spin without breaking Bianchi identity. β function in the renormalization group equation is negative and the confinement of gravity is expected. The confinement radius is, however, actually infinite and we can read off the relation that the average mass density of the present universe is exactly equal to the critical value rhosub(c)(t)=6H2(t)/k2. (orig.)
Journal
Zeitschrift fuer Physik. C, Particles and Fields; ISSN 0170-9739; ; v. 10(1); p. 9-15
; v. 10(1); p. 9-15
No abstract available
Source
CEA, 75 - Paris (France); v. 1 p. 552-553; ISBN 2-7272-0020-X; ; 1977; v. 1 p. 552-553; Commissariat a l'Energie Atomique; Paris, France; 10. International conference on the physics of electronic and atomic collisions (ICPEAC); Paris, France; 21 - 27 Jul 1977; Books of abstracts commercially available from North-Holland, Amsterdam, the Netherlands; Published in abstract form only.
; 1977; v. 1 p. 552-553; Commissariat a l'Energie Atomique; Paris, France; 10. International conference on the physics of electronic and atomic collisions (ICPEAC); Paris, France; 21 - 27 Jul 1977; Books of abstracts commercially available from North-Holland, Amsterdam, the Netherlands; Published in abstract form only.
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