- 
                        
                                 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.
- 
	                          
- 
                        References
	
			| [1] | Fukuda Y et al. Phvs. Rev. Lett.1998. 81:4279;Jung C. K, Mchrew C, Kajita T, et al. Ann. Rev. Nucl. Part.Sci., 2001,51:4512 K2K Collaboration, Ahn M H et al. Phys. Rev. Lett.,2003,90:0418013 SNO Collaboration, Ahmad Q R et al. Yhvs. Rev. Left..2002, 89:011301;Phvs. Rev. left.,2002,89:0113024 KamLAND Collahorntion. Eguchi K et al. Phys. Rev. Left.,2003,90:0218025 Panicle Data Group. Hagiwara K et al.Phys. Rev.,2002,D66:0100016 Bertnctt C L. et al. astro-ph/0302207; Spergel D N et al. agtm-ph/03022097 Bilenky S M, Giunti C. Grifols J A, et al. hep-ph/02114628 KATRIN Collaboration, Osipowicz A et al .hep-en/01090339 BarRer V, Marfatia U. hep-ph/0212126; Fogli C L et al. hep-ph/012127; Maltoni M, Schwetz T, Valle J W F. hrp-ph/0212129; Rah-call J N, Gunrblez-Garcia M C, Pena-Gamy C. hep-ph/0212147; de Holanda P C. Smimov A Yu, heh-ph/0212270; Fogli G L.Lisi E,Marrcxre A, Montanino P. hep-ph/030306410 CHOOZ Collaboration, Apollonio M et al,Phys. Lett..1998, 8420:397: Palo Verde Collaboration. Boehm F et al.Phys. Rev. Lett 2000. 87:376411 XING Z Z. Phys. Rev,2002, D65:077302: CUO W L, XINC Z Z.Phys. Rev.,2003. D67:05300212 Fritzsch H, XING Z Z. Phvs. Lett.,2001,B517:363: RING Z Z.Phys. Rev..2002, D65:11301013 Pierce .A,Murayema H . hep-ph/0302131;Giunti C. hep-ph/03(12173;Rhattacharyya G, Pas H, Song L, Weiler T J. hep-ph/0302191;Hsn-nested S. adrrrph/0303076; Elgaroy O, Lahav O. astro-ph/0303089 14 Fritzarh H. RING Z Z. Prog. Part.Nucl. Phys,2000,45:1 |  
 
- 
                    	
	
				| [1] | Yifang Wang
								, Zhi-zhong Xing
								, Shun Zhou
								. Towards a detection of reactor ${\overline {\boldsymbol v}_{\boldsymbol e} \boldsymbol\to \overline {\boldsymbol v}_{\boldsymbol\mu} }$  and ${\overline {\boldsymbol v}_{\boldsymbol e} \boldsymbol\to \overline {\boldsymbol v}_{\boldsymbol\tau} }$  oscillations with possible CP violation. Chinese Physics C,
							2026, 50(1): 011001.
							 doi: 10.1088/1674-1137/ae0996 |  
				| [2] | Rong-Zhi Sun
								, Shu-Min Zhao
								, Shuang Di
								, Xing-Xing Dong
								. Study of ${\boldsymbol\tau\rightarrow {\boldsymbol e M^+ M^-}}$  decays in N-B-LSSM. Chinese Physics C,
							2025, 49(11): 113110.
							 doi: 10.1088/1674-1137/adec4c |  
				| [3] | Liuxin Zhao
								, Honglei Li
								, Zhi-Long Han
								, Fei Huang
								, Xinyi Yan
								. Extra charged gauge boson W′ in Alternative Left-Right Model at future muon collider. Chinese Physics C,
							2025, 49(12): 123102.
							 doi: 10.1088/1674-1137/adec51 |  
				| [4] | Hao-Qiao Li
								, Hai-Ning Yan
								, Jiayin Gu
								, Xiao-Ze Tan
								. Probing Z/W pole physics at high-energy muon colliders via vector-boson-fusion processes. Chinese Physics C,
							2025, 49(10): 103102.
							 doi: 10.1088/1674-1137/addfcd |  
				| [5] | GUO Yun-Jun
								, HE Kang-Lin
								. Muon Identification Using the Efficiencies Ratio Method at BESⅡ. Chinese Physics C,
							2007, 31(11): 1050-1055. |  
				| [6] | YE Wei
								. Possible Dependence of Dissipation Strength on Angular Momentum. Chinese Physics C,
							2006, 30(8): 759-760. |  
				| [7] | Yang Jianjun
								, Ma Boqiang
								, Li Guanglie
								. Non-perturbative Quark Propagator and the Study of the Non-trivial Q2 Dependence in the Nucleon Structure Functions. Chinese Physics C,
							1997, 21(2): 146-156. |  
 
- 
                        Access  
- 
                        
-