摘要We analyse the available data of solar neutrino experiments up to the date May 2008, including SK-I, SK-II, SNO phase-I, SNO phase-II and first-generation Ga and Cl experiments. They show great improvement in constraints on solar neutrino oscillation parameters. Together with the new results from long base line reactor experiment KamLAND, the parameters are precisely determined, with 1σ allowed region in Δm212=7.586+0.212-0.203×10-5 eV2, tan2θ12=0.457+0.076-0.067.
Abstract:We analyse the available data of solar neutrino experiments up to the date May 2008, including SK-I, SK-II, SNO phase-I, SNO phase-II and first-generation Ga and Cl experiments. They show great improvement in constraints on solar neutrino oscillation parameters. Together with the new results from long base line reactor experiment KamLAND, the parameters are precisely determined, with 1σ allowed region in Δm212=7.586+0.212-0.203×10-5 eV2, tan2θ12=0.457+0.076-0.067.
YANG Ping;LIU Qiu-Yu. Precise Measurement of Solar Neutrino Oscillation Parameters from Recent Experiments[J]. 中国物理快报, 2009, 26(3): 31401-031401.
YANG Ping, LIU Qiu-Yu. Precise Measurement of Solar Neutrino Oscillation Parameters from Recent Experiments. Chin. Phys. Lett., 2009, 26(3): 31401-031401.
[1] Liu Q Y, Chen B L, Zhou J, Luo M J and Jing S C 2005 Commun. Theor. Phys. 44 505 [2] Davis R 1994 Prog. Part. Nucl. Phys. 32 13 [3] Abdurashitov D N et al. 1994 Phys. Lett. B 328234 [4] Anselmann P et al. (GALLEX Collaboration) 1995 Phys.Lett. B 357 237 [5] de Holanda P C and Smirnov A Y 2002 Phys. Rev. D 66 113005 [6] Bahcall J N, Pinsonneault M H and Basu S 2001 Astrophys. J. 555 990 [7] de Holanda P C, Liao W and Smirnov A Y 2004 Nucl.Phys. B 702 307 [8] Liu Q Y, Maris M and Petcov S T 1997 Phys. Rev. D 56 5991 [9] Maris M and Petcov S T 1997 Phys. Rev. D 567444 [10] McDonald A B et al. (SNO Collaboration) 2003 AIPConf. Proc. 646 43 [11] Ahmad Q R et al. (SNO Collaboration) 2002 Phys. Rev.Lett. 89 011302 [12] Ahmed S N et al. (SNO Collaboration) 2004 Phys. Rev.Lett. 92 181301 [13] Aharmim B et al. (SNO Collaboration) 2005 Phys.Rev. C 72 055502 [14] Hosaka J et al. (Super-Kamkiokande Collaboration) 2006 Phys. Rev. D 73 112001 [15] Cravens J P et al. (Super-Kamiokande Collaboration) 2008 Phys. Rev. D 78 032002 [16] Eguchi K et al. (KamLAND Collaboration) 2003 Phys.Rev. Lett. 90 021802 [17] Araki T et al. (KamLAND Collaboration) 2005 Phys.Rev. Lett. 94 081801 [18] Abe S et al. (KamLAND Collaboration) 2008 Phys. Rev.Lett. 100 221803 [19] Bandyopadhyay A, Choubey S, Goswami S, Petcov S T and RoyD P 2008 hep-ph/0804.4857