We consider that the Higgs triplet Yukawa coupling takes the Friedberg-Lee texture, and the Higgs doublet Yukawa coupling simply identifies with the diagonal Yutawa coupling of charged lepton in the context of left-ri...We consider that the Higgs triplet Yukawa coupling takes the Friedberg-Lee texture, and the Higgs doublet Yukawa coupling simply identifies with the diagonal Yutawa coupling of charged lepton in the context of left-right symmetric model. In this scenario, the phenomenology, including effective neutrino masses, mixings, and thermal flavor-dependent leptogenesis and lepton flavor violation decays are studied. We investigate the combined constrain of the parameters in this scenario and test its consistency with present data.展开更多
The puma model on the basis of the Lorentz and CPT violation may bring an economical interpretation to the conventional neutrinos oscillation and part of the anomalous oscillations.We study the effect of the perturbat...The puma model on the basis of the Lorentz and CPT violation may bring an economical interpretation to the conventional neutrinos oscillation and part of the anomalous oscillations.We study the effect of the perturbation to the puma model.In the case of the first-order perturbation which keeps the (23) interchange symmetry,the mixing matrix element Ue3 is always zero.The nonzero mixing matrix element Ue3 is obtained in the second-order perturbation that breaks the (23) interchange symmetry.展开更多
Similar to Blasone et al.[Phys.Rev.D 72(2005)013003]by examining the expectation value of the flavor charge under the normalized flavor state of the neutrino,we demonstrate that the introduction of the flavor state is...Similar to Blasone et al.[Phys.Rev.D 72(2005)013003]by examining the expectation value of the flavor charge under the normalized flavor state of the neutrino,we demonstrate that the introduction of the flavor state is consistent with the flavor charge only when the conditions,i.e.(A)|p|=0(the low energy case),or|p|/mi≫1(the relativistic case)and(B)the flavor state should be defined of the Pontecorvo form|νe〉=cosθ|ν1〉+sinθ|ν2〉or equivalently except a global phase,are satisfied.The root of the issue lies in the structure of the flavor charge operator.The diagonalization of the flavor charge operator with the integer eigenvalue can be realized through the Bogoliubov–Valatin transformation when condition A is satisfied.The eigenstate of the diagonalized flavor charge is of the Pontecorvo form under condition B.展开更多
We analyze the existing solar neutrino experiment data and show the allowed regions. The result from SNO's salt phase itself restricts quite a lot the allowed region's area. Reactor neutrinos play an important...We analyze the existing solar neutrino experiment data and show the allowed regions. The result from SNO's salt phase itself restricts quite a lot the allowed region's area. Reactor neutrinos play an important role in determining oscillation parameters. KamLAND gives decisive conclusion on the solution to the solar neutrino puzzle, in particular, the spectral distortion in the 766.3 Ty KamLAND data gives another new improvement in the constraint of solar MSW-LMA solutions. We confirm that at 99. 73% C.L. the high-LMA solution is excluded.展开更多
基金supported by National Natural Science Foundation of China under Grant No.90203002
文摘We consider that the Higgs triplet Yukawa coupling takes the Friedberg-Lee texture, and the Higgs doublet Yukawa coupling simply identifies with the diagonal Yutawa coupling of charged lepton in the context of left-right symmetric model. In this scenario, the phenomenology, including effective neutrino masses, mixings, and thermal flavor-dependent leptogenesis and lepton flavor violation decays are studied. We investigate the combined constrain of the parameters in this scenario and test its consistency with present data.
文摘The puma model on the basis of the Lorentz and CPT violation may bring an economical interpretation to the conventional neutrinos oscillation and part of the anomalous oscillations.We study the effect of the perturbation to the puma model.In the case of the first-order perturbation which keeps the (23) interchange symmetry,the mixing matrix element Ue3 is always zero.The nonzero mixing matrix element Ue3 is obtained in the second-order perturbation that breaks the (23) interchange symmetry.
文摘Similar to Blasone et al.[Phys.Rev.D 72(2005)013003]by examining the expectation value of the flavor charge under the normalized flavor state of the neutrino,we demonstrate that the introduction of the flavor state is consistent with the flavor charge only when the conditions,i.e.(A)|p|=0(the low energy case),or|p|/mi≫1(the relativistic case)and(B)the flavor state should be defined of the Pontecorvo form|νe〉=cosθ|ν1〉+sinθ|ν2〉or equivalently except a global phase,are satisfied.The root of the issue lies in the structure of the flavor charge operator.The diagonalization of the flavor charge operator with the integer eigenvalue can be realized through the Bogoliubov–Valatin transformation when condition A is satisfied.The eigenstate of the diagonalized flavor charge is of the Pontecorvo form under condition B.
文摘We analyze the existing solar neutrino experiment data and show the allowed regions. The result from SNO's salt phase itself restricts quite a lot the allowed region's area. Reactor neutrinos play an important role in determining oscillation parameters. KamLAND gives decisive conclusion on the solution to the solar neutrino puzzle, in particular, the spectral distortion in the 766.3 Ty KamLAND data gives another new improvement in the constraint of solar MSW-LMA solutions. We confirm that at 99. 73% C.L. the high-LMA solution is excluded.
