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AbstractAbstract
[en] The mixing ratios (δ) and the internal conversion electron particle parameters (b2) of the 121.8KeV transition in deformed 152Sm nuclei were determined by comparing the γ-γ and γ-e angular correlation measurements made with the same source. The experimental apparatus was constructed with a surface barrier detector for electrons and two Ge(Li) detectors for gamma rays. The following results were obtained. 244.7 KeV - 121.8 KeV ; δ = -0.012±0.007 688.6 KeV - 121.8 KeV ; δ = 17.4±3.01 964.0 KeV - 121.8 KeV ; δ = 9.51±1.93 1112.0 KeV - 121.8 KeV ; δ = 12.30±2.05 1408.0 KeV - 121.8 KeV ; δ = 0.16±0.07 964.0 KeVγ - 121.8 keVek ; b2 = 1.66±0.26 1408.0 KeVγ - 121.8 KeVek ; b2 = 1.63±0.10 1408.0 KeVγ - 121.8 KeVeL ; b2 = 0.99±0.13 The results are compared with the theoretical values derived from the Pairing-Plus-Quadrupole model and from the Interacting-Boson-Approximation model, and an anomaly was found in the low-lying E2 transition for deformed 152Sm nuclei. (Author)
Primary Subject
Record Type
Journal Article
Journal
J. Nat. Sci. Res. Inst., Yonsei Univ; CODEN JNSUD; v. 17 p. 15-25
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Bilenky, S.M.; Pontecorvo, B.
Joint Inst. for Nuclear Research, Dubna (USSR). Lab. of Nuclear Problems1980
Joint Inst. for Nuclear Research, Dubna (USSR). Lab. of Nuclear Problems1980
AbstractAbstract
[en] Neutrino oscillations in different schemes of neutrino mixing requiring an even number of charged leptons are investigated. The theory with only either Dirac or Majorana mass terms is considered. It is shown that the Dirac and Majorana mass cases are distinguishable through the character of their oscillations. In the first case there is one oscillation length and in the second case there are two oscillation lengths
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1980; 6 p; 12 refs.; submitted to the journal Phys. Lett.
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Report
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AbstractAbstract
No abstract available
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Source
Letter-to-the-editor.
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Journal Article
Journal
Tellus, Series B: Chemical and Physical Meteorology; ISSN 0280-6509;
; CODEN TSBMD; v. 37(3); p. 182-185

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Nandi, S.; Tanaka, K.
Ohio State Univ., Columbus (USA). Dept. of Physics1979
Ohio State Univ., Columbus (USA). Dept. of Physics1979
AbstractAbstract
[en] Exact expressions for the mixing parameters are obtained in terms of mass ratios in the standard Weinberg-Salam model with permutation symmetry S3 for six quarks. The CP-violating phase is ignored, and there are no arbitrary parameters except for the quark masses. In the lowest order, the angles defined by Kobayashi-Maskawa are sin theta/sub 1/ = sin theta/sub c/ = (m/sub d//m/sub d/ + m/sub s/)/sup 1/2/, sin theta3 = -sin theta/sub 3/ = -m2/sub s//m2/sub b/, and m/sub t/m/sub s/ greater than or equal to m/sub c/m/sub b/ = 7.2 GeV2 or m/sub t/ greater than or equal to 24 GeV for m/sub s/ = 0.3 GeV
Primary Subject
Source
1979; 4 p; Available from NTIS., PC A02/MF A01
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Report
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AbstractAbstract
[en] The newly proposed finite symmetry Σ(81)is applied to the problem of neutrino tribimaximal mixing. The result is more satisfactory than those of previous models based on A4 in that the use of auxiliary symmetries (or mechanisms) may be avoided. Deviations from the tribimaximal pattern are expected, but because of its basic structure, only tan2(Θ12) may differ significantly from 0.5 (say 0.45) with sin2(2*Θ23) remaining very close to unity, and Θ13 very nearly zero. (authors)
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Source
Available from doi: http://dx.doi.org/10.1209/0295-5075/79/61001; 21 refs.
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Journal Article
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AbstractAbstract
[en] In the S4 model, we work out the simplest possible scheme for neutrino masses. We find that ν/sub e/ and ν/sub μ/ have dominant massless components but not ν/sub tau/. The mixing matrix is completely determined and ν/sub e/-ν/sub tau/ and ν/sub μ/-ν/sub tau/ oscillations are possible with known mixing angles and only one deltam2
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Journal Article
Journal
Physical Review. D, Particles Fields; ISSN 0556-2821;
; v. 30(1); p. 255-257

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AbstractAbstract
[en] We review the results of global analyses of short-baseline neutrino oscillation data in 3+1 and 3+2 neutrino mixing schemes
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Journal Article
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Nuovo Cimento. C (Print); ISSN 2037-4909;
; v. 37C(3); p. 95-100

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Bilenky, S.M., E-mail: bilenky@gmail.com
Joint Institute for Nuclear Research, Dubna (Russian Federation)2015
Joint Institute for Nuclear Research, Dubna (Russian Federation)2015
AbstractAbstract
[en] Some problems connected with the high-precision study of neutrino oscillations are discussed. In the general case of n-neutrino mixing, a convenient expression for transition probability, in which only independent terms (and mass-squared differences) enter, is derived. For three-neutrino mixing, a problem of a definition of a large (atmospheric) neutrino mass-squared difference is discussed. The possibilities to reveal the character of neutrino mass spectrum in future reactor neutrino experiments are commented on as well.
Primary Subject
Source
Available online: http://www1.jinr.ru/Pepan_letters/panl_2015_4/01_bilen.pdf; 44 refs.
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Journal Article
Journal
Pis'ma v Zhurnal 'Fizika Ehlementarnykh Chastits i Atomnogo Yadra'; ISSN 1814-5957;
; v. 12(4/195); p. 720-732

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Gollu, Srinu; Deepthi, K.N.; Mohanta, R.
Proceedings of the twentieth DAE-BRNS high energy physics symposium: programme abstracts2013
Proceedings of the twentieth DAE-BRNS high energy physics symposium: programme abstracts2013
AbstractAbstract
[en] The leptonic mixing matrix is characterized by two large mixing angles, θ12 ∼ 35 and θ23 ∼ 45 and one small mixing angle θ13. For several years, the data on neutrino oscillations were compatible with θ23 ∼ 0, and were approximately described by the tribimaximal (TBM) mixing matrix. However, the recent results form Daya Baya and RENO reactor neutrino experiments have established that the smallest mixing angle θ13 is rather large, i.e., θ13 ∼ 9°. To account for the large reactor angle, we consider the lepton mixing matrix to be of the form UPMNS = VLUTBM , where VL is the unitary matrix needed to diagonalize the charged lepton mass matrix. The form of VL is assumed to be of the form of CKM mixing matrix of the quark sector. We find that with this modification it is possible to accommodate the large observed reactor mixing angle θ13. We also study the possibility of observing non-zero CP-violation in the leptonic sector with such extended tri-bimaximal mixing matrix. (author)
Primary Subject
Source
Visva-Bharati, Kolkata (India); 154 p; 2013; p. 78; 20. DAE-BRNS high energy physics symposium; Kolkata (India); 13-18 Jan 2013
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Book
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Conference
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AbstractAbstract
No abstract available
Original Title
Temperature dependence of γ anisotropy; 175Lu; mixing ratio
Primary Subject
Source
Hendrie, D.L.; Tsang, C.F.; Zalkin, A. (eds.); California Univ., Berkeley (USA). Lawrence Berkeley Lab; p. 236-238; May 1973
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Report
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Progress Report
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