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Kam-Biu Luk 28 Nov, 2003 Neutrino at Daya Bay Kam-Biu Luk University of California, Berkeley and Lawrence Berkely National Laboratory.

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Presentation on theme: "Kam-Biu Luk 28 Nov, 2003 Neutrino at Daya Bay Kam-Biu Luk University of California, Berkeley and Lawrence Berkely National Laboratory."— Presentation transcript:

1 Kam-Biu Luk 28 Nov, 2003 Neutrino at Daya Bay Kam-Biu Luk University of California, Berkeley and Lawrence Berkely National Laboratory

2 Kam-Biu Luk 28 Nov, 2003 Neutrino at Daya Bay Theoretical Predictions Evidence of Neutrino Oscillation Solar neutrinos ( e  x ): Homestake (USA) e + 37 Cl  37 Ar + e - 1 SNU = 10 -36 interaction/atom/s

3 Kam-Biu Luk 28 Nov, 2003 Neutrino at Daya Bay Evidence of Neutrino Oscillation (cont.) Solar neutrinos ( e  x ): SNO (Canada)

4 Kam-Biu Luk 28 Nov, 2003 Neutrino at Daya Bay Evidence of Neutrino Oscillation (cont.) Atmospheric neutrinos (    ): Super-Kamiokande (Japan)

5 Kam-Biu Luk 28 Nov, 2003 Neutrino at Daya Bay Evidence of Neutrino Oscillation (cont.) Accelerator anti-neutrinos (   e ): LSND

6 Kam-Biu Luk 28 Nov, 2003 Neutrino at Daya Bay Evidence of Neutrino Oscillation (cont.) Reactor anti-neutrinos ( e  x ) at ~180 km: KamLAND (Japan) e

7 Kam-Biu Luk 28 Nov, 2003 Neutrino at Daya Bay Parametrize the mixing matrix as: At large L/E, the probability of e  e is: Neutrino Mixing For massive neutrinos, the weak eigenstates are not the same as the mass eigenstates:

8 Kam-Biu Luk 28 Nov, 2003 Neutrino at Daya Bay Reach in ∆m 2

9 Kam-Biu Luk 28 Nov, 2003 Neutrino at Daya Bay On-going Verification of Neutrino Oscillation 1999 data observed 29 events expect 44 events (no osc.) K2K(Japan): reproducing atmospheric neutrino oscillation (    ) 250km

10 Kam-Biu Luk 28 Nov, 2003 Neutrino at Daya Bay On-Going Verification of Neutrino Oscillation (cont.) MiniBooNe (USA): Repeating LSND

11 Kam-Biu Luk 28 Nov, 2003 Neutrino at Daya Bay Upcoming Verification of Neutrino Oscillation MINOS (USA): reproducing atmospheric neutrino oscillation using accelerator produced  beam Soudan Mine 730 km away Fermilab

12 Kam-Biu Luk 28 Nov, 2003 Neutrino at Daya Bay Upcoming Verification of Neutrino Oscillation CNGS-ICARUS-OPERA (Europe): reproducing atmospheric neutrino oscillation using CERN produced  beam ICARUS

13 Kam-Biu Luk 28 Nov, 2003 Neutrino at Daya Bay Search For Subdominant Neutrino Oscillation Reactor anti-neutrinos ( e  x ) at 1 km: CHOOZ (France), Palo Verde (USA) sin 2 (2  13 ) ∆m 13 2 (eV 2 )

14 Kam-Biu Luk 28 Nov, 2003 Neutrino at Daya Bay

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