Solar neutrino oscillation parameters after first KamLAND results

被引:136
作者
Fogli, GL
Lisi, E
Marrone, A
Montanino, D
Palazzo, A
Rotunno, AM
机构
[1] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy
[2] Sez INFN Bari, I-70126 Bari, Italy
[3] Univ Lecce, Dipartimento Sci Mat, I-73100 Lecce, Italy
[4] Sez INFN Lecce, I-73100 Lecce, Italy
关键词
D O I
10.1103/PhysRevD.67.073002
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We analyze the energy spectrum of reactor neutrino events recently observed in the Kamioka Liquid Scintillator Antineutrino Detector (KamLAND) and combine them with solar and terrestrial neutrino data, in the context of two- and three-family active neutrino oscillations. In the 2nu case, we find that the solution to the solar neutrino problem at large mixing angle (LMA) is basically split into two subregions that we denote as LMA-I and LMA-II. The LMA-I solution, characterized by lower values of the squared neutrino mass gap, is favored by the global data fit. This picture is not significantly modified in the 3nu mixing case. A brief discussion is given about the discrimination of the LMA-I and LMA-II solutions with future KamLAND data. In both the 2nu and 3nu cases, we present a detailed analysis of the post-KamLAND bounds on the oscillation parameters.
引用
收藏
页数:10
相关论文
共 64 条
[1]   Solar neutrino flux measurements by the Soviet-American gallium experiment (SAGE) for half the 22-year solar cycle [J].
Abdurashitov, JN ;
Veretenkin, EP ;
Vermul, VM ;
Gavrin, VN ;
Girin, SV ;
Gorbachev, VV ;
Gurkina, PP ;
Zatsepin, GT ;
Ibragimova, TV ;
Kalikhov, AV ;
Knodel, TV ;
Mirmov, IN ;
Khairnasov, NG ;
Shikhin, AA ;
Yants, VE ;
Bowles, TJ ;
Teasdale, WA ;
Nico, JS ;
Wilkerson, JF ;
Cleveland, BT ;
Elliott, SR .
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2002, 95 (02) :181-193
[2]   Direct evidence for neutrino flavor transformation from neutral-current interactions in the Sudbury Neutrino Observatory -: art. no. 011301 [J].
Ahmad, QR ;
Allen, RC ;
Andersen, TC ;
Anglin, JD ;
Barton, JC ;
Beier, EW ;
Bercovitch, M ;
Bigu, J ;
Biller, SD ;
Black, RA ;
Blevis, I ;
Boardman, RJ ;
Boger, J ;
Bonvin, E ;
Boulay, MG ;
Bowler, MG ;
Bowles, TJ ;
Brice, SJ ;
Browne, MC ;
Bullard, TV ;
Bühler, G ;
Cameron, J ;
Chan, YD ;
Chen, HH ;
Chen, M ;
Chen, X ;
Cleveland, BT ;
Clifford, ETH ;
Cowan, JHM ;
Cowen, DF ;
Cox, GA ;
Dai, X ;
Dalnoki-Veress, F ;
Davidson, WF ;
Doe, PJ ;
Doucas, G ;
Dragowsky, MR ;
Duba, CA ;
Duncan, FA ;
Dunford, M ;
Dunmore, JA ;
Earle, ED ;
Elliott, SR ;
Evans, HC ;
Ewan, GT ;
Farine, J ;
Fergani, H ;
Ferraris, AP ;
Ford, RJ ;
Formaggio, JA .
PHYSICAL REVIEW LETTERS, 2002, 89 (01)
[3]   Measurement of day and night neutrino energy spectra at SNO and constraints on neutrino mixing parameters -: art. no. 011302 [J].
Ahmad, QR ;
Allen, RC ;
Andersen, TC ;
Anglin, JD ;
Barton, JC ;
Beier, EW ;
Bercovitch, M ;
Bigu, J ;
Biller, SD ;
Black, RA ;
Blevis, I ;
Boardman, RJ ;
Boger, J ;
Bonvin, E ;
Boulay, MG ;
Bowler, MG ;
Bowles, TJ ;
Brice, SJ ;
Browne, MC ;
Bullard, TV ;
Bühler, G ;
Cameron, J ;
Chan, YD ;
Chen, HH ;
Chen, M ;
Chen, X ;
Cleveland, BT ;
Clifford, ETH ;
Cowan, JHM ;
Cowen, DF ;
Cox, GA ;
Dai, X ;
Dalnoki-Veress, F ;
Davidson, WF ;
Doe, PJ ;
Doucas, G ;
Dragowsky, MR ;
Duba, CA ;
Duncan, FA ;
Dunford, M ;
Dunmore, JA ;
Earle, ED ;
Elliott, SR ;
Evans, HC ;
Ewan, GT ;
Farine, J ;
Fergani, H ;
Ferraris, AP ;
Ford, RJ ;
Formaggio, JA .
PHYSICAL REVIEW LETTERS, 2002, 89 (01)
[4]   Measurement of the rate of νe+d →p+p+e- interactions produced by 8B solar neutrinos at the sudbury neutrino observatory -: art. no. 071301 [J].
Ahmad, QR ;
Allen, RC ;
Andersen, TC ;
Anglin, JD ;
Bühler, G ;
Barton, JC ;
Beier, EW ;
Bercovitch, M ;
Bigu, J ;
Biller, S ;
Black, RA ;
Blevis, I ;
Boardman, RJ ;
Boger, J ;
Bonvin, E ;
Boulay, MG ;
Bowler, MG ;
Bowles, TJ ;
Brice, SJ ;
Browne, MC ;
Bullard, TV ;
Burritt, TH ;
Cameron, K ;
Cameron, J ;
Chan, YD ;
Chen, M ;
Chen, HH ;
Chen, X ;
Chon, MC ;
Cleveland, BT ;
Clifford, ETH ;
Cowan, JHM ;
Cowen, DF ;
Cox, GA ;
Dai, Y ;
Dai, X ;
Dalnoki-Veress, F ;
Davidson, WF ;
Doe, PJ ;
Doucas, G ;
Dragowsky, MR ;
Duba, CA ;
Duncan, FA ;
Dunmore, J ;
Earle, ED ;
Elliott, SR ;
Evans, HC ;
Ewan, GT ;
Farine, J ;
Fergani, H .
PHYSICAL REVIEW LETTERS, 2001, 87 (07) :71301-1
[5]   Indications of neutrino oscillation in a 250 km long-baseline experiment [J].
Ahn, MH ;
Aoki, S ;
Bhang, H ;
Boyd, S ;
Casper, D ;
Choi, JH ;
Fukuda, S ;
Fukuda, Y ;
Gajewski, W ;
Hara, T ;
Hasegawa, M ;
Hasegawa, T ;
Hayato, Y ;
Hill, J ;
Ichikawa, AK ;
Ikeda, A ;
Inagaki, T ;
Ishida, T ;
Ishii, T ;
Ishitsuka, M ;
Itow, Y ;
Iwashita, T ;
Jang, HI ;
Jang, JS ;
Jeon, EJ ;
Jung, CK ;
Kajita, T ;
Kameda, J ;
Kaneyuki, K ;
Kato, I ;
Kearns, E ;
Kibayashi, A ;
Kielczewska, D ;
Kobayashi, K ;
Kim, BJ ;
Kim, CO ;
Kim, JY ;
Kim, SB ;
Kobayashi, T ;
Kohama, M ;
Koshio, Y ;
Kropp, WR ;
Learned, JG ;
Lim, SH ;
Lim, IT ;
Maesaka, H ;
Martens, K ;
Maruyama, T ;
Matsuno, S ;
Mauger, C .
PHYSICAL REVIEW LETTERS, 2003, 90 (04) :5
[6]   KamLAND and the determination of neutrino mixing parameters in the post SNO-NC era [J].
Aliani, P ;
Antonelli, V ;
Picariello, M ;
Torrente-Lujan, E .
NEW JOURNAL OF PHYSICS, 2003, 5 :2.1-2.15
[7]  
Alvarez L. W., 1949, UCRL328
[8]   Limits on neutrino oscillations from the CHOOZ experiment [J].
Apollonio, I ;
Baldini, A ;
Bemporad, C ;
Caffau, E ;
Cei, F ;
Déclais, Y ;
de Kerret, H ;
Dieterle, B ;
Etenko, A ;
George, J ;
Giannini, G ;
Grassi, M ;
Kozlov, Y ;
Kropp, W ;
Kryn, D ;
Laiman, M ;
Lane, CE ;
Lefièvre, B ;
Machulin, I ;
Martemyanov, A ;
Martemyanov, V ;
Mikaelyan, L ;
Nicolò, 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, 1999, 466 (2-4) :415-430
[9]  
APOLLONIO M, HEPEX0301017
[10]  
Bahcall J.N., 1989, Neutrino Astrophysics