Confronting spin flavor solutions of the solar neutrino problem with current and future solar neutrino data

被引:57
作者
Barranco, J
Miranda, OG
Rashba, TI
Semikoz, VB
Valle, JWF
机构
[1] Inst Politecn Nacl, Ctr Invest & Estudios Avanzados, Dept Fis, Mexico City 07000, DF, Mexico
[2] Russian Acad Sci, Inst Terr Magnetism Ionosphere & Radio Wave Propa, Troitsk, Moscow Region, Russia
[3] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46071 Valencia, Spain
关键词
D O I
10.1103/PhysRevD.66.093009
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A global analysis of spin flavor precession (SFP) solutions to the solar neutrino problem is given, taking into account the impact of the full set of latest solar neutrino data, including the recent SNO data and the 1496-day Super-Kamiokande data. These are characterized by three effective parameters: Deltam(SOL)(2)equivalent toDeltam(2), the neutrino mixing angle theta(SOL)equivalent totheta, and the magnetic field parameter muB(perpendicular to). For the last we adopt a self-consistent magnetohydrodynamics field profile in the convective zone and identify an optimum B(perpendicular to)similar to80 kG strength for mu=10(-11)mu(B). We find that no low mass (LOW) quasivacuum or vacuum solutions are present at 3sigma. In addition to the standard large mixing angle (LMA) oscillation solution, there are two SFP solutions, in the resonant (RSFP) and nonresonant (NRSFP) regimes. These two SFP solutions have a goodness of fit of 84% (RSFP) and 83% (NRSFP), slightly better than the LMA oscillation solution (78%). We discuss the role of solar antineutrino searches in the fit and present a table of best-fit parameters and chi(min)(2) values. Should the KamLAND experiment confirm the LMA solution, the SFP solutions may at best be present at a subleading level, leading to a constraint on muB(perpendicular to). In the event the LMA is not the solution realized in nature, then experiments such as Borexino can help in distinguishing the LMA solution from the NRSFP solution and the simplest RSFP solution with no mixing.
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共 60 条
[1]  
ABDURASHITOV DN, 1999, PHYS REV C, V60
[2]   Measurement of the solar neutrino capture rate by SAGE and implications for neutrino oscillations in vacuum [J].
Abdurashitov, JN ;
Bowles, TJ ;
Cherry, ML ;
Cleveland, BT ;
Davis, R ;
Elliott, SR ;
Gavrin, VN ;
Girin, SV ;
Gorbachev, VV ;
Ibragimova, TV ;
Kalikhov, AV ;
Khairnasov, NG ;
Knodel, TV ;
Lande, K ;
Mirmov, IN ;
Nico, JS ;
Shikhin, AA ;
Teasdale, WA ;
Veretenkin, EP ;
Vermul, VM ;
Wark, DL ;
Wildenhain, PS ;
Wilkerson, JF ;
Yants, VE ;
Zatsepin, GT .
PHYSICAL REVIEW LETTERS, 1999, 83 (23) :4686-4689
[3]  
ABDURASHITOV JN, ASTROPH0204245 SAGE
[4]   Upper limit on the solar antineutrino flux according to LSD data [J].
Aglietta, M ;
Vernetto, S ;
Vigorito, C ;
Castellina, A ;
Perliale, L ;
Trinchero, GC ;
Fulgione, W ;
Galeotti, P ;
Castagnoli, C ;
Saavedra, O ;
Dadykin, VL ;
Zatsepin, GT ;
Korolkova, EV ;
Kortchaguin, PV ;
Kortchaguin, VB ;
Kudryavtsev, VA ;
Malguin, AS ;
Ryazhskaya, OG ;
Ryasny, VG ;
Khalchukov, FF ;
Yakushev, VF .
JETP LETTERS, 1996, 63 (10) :791-795
[5]   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)
[6]   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)
[7]   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
[8]   SNO and the neutrino magnetic moment solution of the solar neutrino problem [J].
Akhmedov, EK ;
Pulido, J .
PHYSICS LETTERS B, 2000, 485 (1-3) :178-186
[10]   Distinguishing magnetic moment from oscillation solutions of the solar neutrino problem with Borexino [J].
Akhmedov, EK ;
Pulido, J .
PHYSICS LETTERS B, 2002, 529 (3-4) :193-198