Atmospheric neutrino oscillations and maximal νμ-ντ mixing in unified models

被引：15

作者：

Allanach, BC ^{[1
]}

机构：

[1] DAMTP, Cambridge CB3 9EW, England

来源：

PHYSICS LETTERS B | 1999年 / 450卷 / 1-3期

关键词：

D O I：

10.1016/S0370-2693(99)00108-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The recent data describing the evidence for neutrino oscillations by Super Kamiokande implies that two neutrinos are very strongly mixed. We ask the question: can approximate maximal neutrino mixing be natural in unified (GUT or string) models? We attempt to answer this question in as much generality as possible. Without specifying a particular model, we are able to show that a gauged family symmetry can naturally provide the required maximal mixing between mu and tau neutrinos. The second and third family neutrino mass eigenstates are almost degenerate with masses of order 0.2 eV. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：182 / 188

页数：7

共 32 条

[1] Minimality condition and atmospheric neutrino oscillations [J].

Albright, CH ;

Babu, KS ;

Barr, SM .

PHYSICAL REVIEW LETTERS, 1998, 81 (06) :1167-1170

[2] Yukawa textures in string unified models with SU(4)circle times O(4) symmetry [J].

Allanach, BC ;

King, SF ;

Leontaris, GK ;

Lola, S .

PHYSICAL REVIEW D, 1997, 56 (05) :2632-2655

[3] Neutrino masses and mixing angles in a supersymmetric SU(4)circle times SU(2)(L)circle times SU(2)(R) model [J].

Allanach, BC ;

King, SF .

NUCLEAR PHYSICS B, 1996, 459 (1-2) :75-96

[4]

ALLANACH BC, HEPPH9712446

[5] Initial results from the CHOOZ long baseline reactor neutrino oscillation experiment [J].

Apollonio, M ;

Baldini, A ;

Bemporad, C ;

Caffau, E ;

Cei, F ;

Declais, Y ;

de Kerret, H ;

Dieterle, B ;

Etenko, A ;

George, J ;

Giannini, G ;

Grassi, M ;

Kozlov, Y ;

Kropp, W ;

Kryn, D ;

Laiman, M ;

Lane, CE ;

Lefievre, B ;

Machulin, I ;

Martemyanov, A ;

Martemyanov, V ;

Mikaelyan, L ;

Nicolo, D ;

Obolensky, M ;

Pazzi, R ;

Pieri, G ;

Price, L ;

Riley, S ;

Reeder, R ;

Sabelnikov, A ;

Santin, G ;

Skorokhvatov, M ;

Sobel, H ;

Steele, J ;

Steinberg, R ;

Sukhotin, S ;

Tomshaw, S ;

Veron, D ;

Vyrodov, V .

PHYSICS LETTERS B, 1998, 420 (3-4) :397-404

[6] Results on υμ → υe neutrino oscillations from the LSND experiment [J].

Athanassopoulos, C ;

Auerbach, LB ;

Burman, RL ;

Caldwell, DO ;

Church, ED ;

Cohen, I ;

Donahue, JB ;

Fazely, A ;

Federspiel, FJ ;

Garvey, GT ;

Gunasingha, RM ;

Imlay, R ;

Johnston, K ;

Kim, HJ ;

Louis, WC ;

Majkic, R ;

McIlhany, K ;

Milis, GB ;

Reeder, RA ;

Sandberg, V ;

Smith, D ;

Stancu, I ;

Strossman, W ;

Tayloe, R ;

VanDalen, GJ ;

Vernon, W ;

Wadia, N ;

Waltz, J ;

White, DH ;

Works, D ;

Xiao, Y ;

Yellin, S .

PHYSICAL REVIEW LETTERS, 1998, 81 (09) :1774-1777

[7] Neutrino mass texture with large mixing [J].

Bando, M ;

Kugo, T ;

Yoshioka, K .

PHYSICAL REVIEW LETTERS, 1998, 80 (14) :3004-3007

[8] Generalized neutrino mixing from the atmospheric anomaly [J].

Barger, V ;

Weiler, TJ ;

Whisnant, K .

PHYSICS LETTERS B, 1998, 440 (1-2) :1-6

[9] Bi-maximal mixing of three neutrinos [J].

Barger, V ;

Pakvasa, S ;

Weiler, TJ ;

Whisnant, K .

PHYSICS LETTERS B, 1998, 437 (1-2) :107-116

[10] Quasi-degenerate neutrinos from an Abelian family symmetry [J].

Binetruy, P ;

Lavignac, S ;

Petcov, S ;

Ramond, P .

NUCLEAR PHYSICS B, 1997, 496 (1-2) :3-23

← 1 2 3 4 →