Hopeless to Kinematically Detect the Effective Masses of Muon and Tau Neutrinos

XING Zhi-Zhong

Chinese Physics C> 2003, Vol. 27> Issue(10) : 841-845

Hopeless to Kinematically Detect the Effective Masses of Muon and Tau Neutrinos

XING Zhi-Zhong ^,

Institute of High Energy Physics,CAS,Beijing 100039,China

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We show that the recent WMAP data can impose a generous upper bound on the effective masses of electron, muon and tau neutrinos defined in the kinematic measurements:2, +< m>u2+2t = m12 + m22 + m32<0.5eV2, or a<0.71eV ( for a = e, u,t) . When current neutrino oscillation data are taken into account, we obtain (m)?< 0.24eV and u=t< 0.24eV, Thus there is no hope to kinematically detect u and t in any realistic experiments.

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XING Zhi-Zhong. Hopeless to Kinematically Detect the Effective Masses of Muon and Tau Neutrinos[J]. Chinese Physics C, 2003, 27(10): 841-845.

XING Zhi-Zhong. Hopeless to Kinematically Detect the Effective Masses of Muon and Tau Neutrinos[J]. Chinese Physics C, 2003, 27(10): 841-845. shu

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Received: 2003-05-28
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Hopeless to Kinematically Detect the Effective Masses of Muon and Tau Neutrinos

Corresponding author: XING Zhi-Zhong,

Institute of High Energy Physics,CAS,Beijing 100039,China

Received Date: 2003-05-28

Accepted Date: 1900-01-01

Available Online: 2003-10-05

Abstract: We show that the recent WMAP data can impose a generous upper bound on the effective masses of electron, muon and tau neutrinos defined in the kinematic measurements:2, +< m>u2+2t = m12 + m22 + m32<0.5eV2, or a<0.71eV ( for a = e, u,t) . When current neutrino oscillation data are taken into account, we obtain (m)?< 0.24eV and u=t< 0.24eV, Thus there is no hope to kinematically detect u and t in any realistic experiments.

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Hopeless to Kinematically Detect the Effective Masses of Muon and Tau Neutrinos

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