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1
2 µ + /µ π π TDC
3 3.2.4 ADC ADC TDC µ + /µ A 67 B π 68 3
4 1 π π [5] π R L π θ = π θ = π (ADC) TDC TDC PMT ADC (0 ) TOF TOF ADC (0 ) ADC ( )
5 24 ([19] ) tdc tdc1 tdc2 tdc3 OR PMT2 PMT3 tdc P2 1ch 20.09ns VETO µs PMT2 ADC PMT3 ADC PMT(2 3) ADC PMT2 3 TDC 2.8µs 40µs P PMT2 3 TDC 40µs P2 P PMT2 3 TDC τ µ +=2197 τ µ = PMT PMT(2) tdc P(3) P(4) PMT(2) TDC PMT(3) tdc P(3) P(4) PMT(3) TDC PMT1( ),2( ) PMT1, dead time
6 H
7 7
8 R = N µ +/N µ 1.28([15] ) 2.2µs 700MeV 1200MeV γ( ) γ = 950 ± ± (1) γ = 8.99 ± π K π + µ + + ν µ π µ + ν µ K + µ + + ν µ K µ + ν µ π K π : K 9 : 1 π ([1] ) 8
9 1.4 ( ) (2) F (θ): θ F (θ) = N(θ): θ T (θ): θ S: Ω: N(θ) T (θ) S Ω π θ j θ j θ=0 (2) j θ = j θ=0 cos n θ (3) n n= µ + e + + ν µ + ν e µ e + e + ν µ t N decay (t) N 0 N decay (t) = N 0 (1 e t/τ ) (4) τ V-A τ 1 = G2 m 5 192π 3 (5) 9
10 G = (1) 10 5 GeV 2 G m m m µ = ± MeV τ = ( ± ) 10 6 s [2] TDC dn decay dt = N 0 τ e t/τ (6) ( ) 100 ( ) K µ + p ν µ + n [15] 864 ± 1.0ns [15] TDC 10
11 dn decay dt = N 1 e t/τ µ + N 2 e t/τ µ + (7) τ µ τ µ + τ µ,τ µ +, N 1,N 2, π µ + /µ µ + /µ 1.28 [17] π π ( 1) 1: π π [5] 11
12 π π π π 0 π 0 ( ) ( ) 100 π π ( 6) 2: π R L π MeV 1200MeV 3cm 30MeV 30MeV π ( 2 ) π π π π ( 2 ) 12
13 π π ( 3) 3: π [14] π P = ( ) π w π (E, x) w π (E, x) B Ex (8) B = 120GeV E π x x [g/cm 2 ] [3] π µ + e + + ν µ + ν e µ e + ν µ + ν e 13
14 0 55MeV ( 1 ) [3] ( 4) 4: θ E V-A ρ(x, cos θ) = 2X 2 [(3 2X) + (2X 1)P cos θ] (9) X = E/E MAX P ([4] ) ( ) PMT2 PMT3 0 55MeV(E MAX ) ρ(x, cos θ) ( P=1 ) π 0 ρ(x, cos θ)sinθdθdx : 1 π 0 ρ(x, cos θ)sinθdθdx 1 2 π = 7 : 5 (10) π 1 2π π 14
15 1.6.4 ( ) (0 53MeV) π [14] π π θ = 90 ( ) θ = 90 ( ) ( ) θ = 90 ( ) [14]
16 5: π θ = 0 P P =
17 6: π θ = MeV 1200MeV ± MeV 1 1 β 2 = 950 ± ± (11) β = v/c = ± (12) cm CAMAC ADC TOF TDC (3 3 1cm 3 )
18 /MeV/g/sec/sterad COMMON /PAWC/ in memory ID 130 ENTRIES /MeV/g/sec/sterad COMMON /PAWC/ in memory ID 130 ENTRIES energy spectrum GeV energy spectrum GeV /MeV/g/sec/sterad COMMON /PAWC/ in memory ID 130 ENTRIES /MeV/g/sec/sterad COMMON /PAWC/ in memory ID 130 ENTRIES energy spectrum GeV energy spectrum GeV 7: π
19 HV(-V) Threshold(-mV) PMT PMT : PMT1( ),2( ) (PMT) 2 H1161 SN.RA8659 H1161 SN.RB6631 CAMAC Ch 1ch full scale ADC LeCroy 2249A 12Ch 0.25pC 500pC TDC HR TDC 8Ch 60ps 250ns cm 9 1 8: 19
20 9: 20
21 PMT3 2 PMT1 111/ ± 1.8 PMT2 69/ ± 2.8 2: PMT1, PMT 3 2 (adc ) 11 PMT2 PMT PMT1,2( PMT) threshold PMT3 threshold (PMT1) TDC PMT
22 10: 22
23 DIS COIN PMT1 PMT2 PMT3 DIS ADC ADC ADC 11: PMT1 DIV DIS adc1 tdc stop G.G LATCH OUTPUT REG COIN DIV G.G WID adc stop tdc start INTERRUPT REG PMT2 DIS DIV tdc stop adc2 CAMAC 12: 23
24 θ ADC 13 ( ) (sec) : 24
25 count(0deg.) r rz ID Entries Mean RMS UDFLW OVFLW ALLCHAN count(30deg.) r rz ID Entries Mean RMS UDFLW OVFLW ALLCHAN adc01 ch adc01 ch count(45deg.) r rz ID Entries Mean RMS UDFLW OVFLW ALLCHAN count(60deg.) r rz ID Entries Mean RMS UDFLW OVFLW ALLCHAN adc01 ch adc01 ch 13: (ADC) 25
26 TDC TDC TDC t(ns) / 5 P P E E ch(tdc03) t(ns) / 5 P P E E ch(tdc06) 14: TDC 26
27 INTERRUPT REGISTER CLOCK GENERATER CO GATE GENERATER ADC GATE START FLEXIBLE DELAY STOP TDC 15: TDC θ=0 ADC ( 16) 16 TOF 17, ADC 20 ADC 21 27
28 ch(adc02) r rz ID 100 ENTRIES adc01vsadc02 ch(adc01) 16: 2 PMT ADC (0 ) 28
29 r rz ID Entries Mean RMS UDFLW OVFLW ALLCHAN tdc06 17: TOF 29
30 r rz ID Entries Mean RMS UDFLW OVFLW ALLCHAN tdc06 18: TOF 30
31 19: (13) π [sec 1 sr 1 cm 2 ] Ω S = Ω(x, y)dxdy (13) DAQ TDC ADC,TDC 1 14µs ADC,TDC 5 140µs DAQ INTERRUPT RE- SISTER 105ns VETO VETO gate generator 31
32 ch(adc02) r rz ID 100 ENTRIES adc01vsadc02 ch(adc01) 20: ADC (0 ) 32
33 ch(adc02)0deg r rz ID 100 ENTRIES ch(adc02)30deg r rz ID 101 ENTRIES adc01vsadc02 ch(adc01) adc01vsadc02 ch(adc01) ch(adc02)45deg r rz ID 102 ENTRIES ch(adc02)60deg r rz ID 103 ENTRIES adc01vsadc02 ch(adc01) adc01vsadc02 ch(adc01) 21: ADC ( ) 33
34 22: 145ns 4 ( ) dead time(ms) : dead time θ=0 rate (4.54±0.23) 10 3 Hz ( ) (220±51) P P = ± 51 P = (0.64 ± 0.23) 10 3 T(θ) 34
35 SiO 2 Al 2 O 3 F e 2 O 3 CaO MgO SO 3 Na 2 O Cl ( ) : Bethe-Bloch de dx = DρZ A ( z β )2 [ln( 2m eγ 2 v 2 ) β 2 (14) I D=4πN A rem 2 e c 2 β = v/c γ = (1 β 2 ) 1/2 N A : = mol 1 r e : = m m e : = ± MeV z: v: Z: A: ρ: I: Z=27.5 A=54.9 ρ=3.5g/cm 3 I=440eV A Z cm 1 8 PC 3cm 35
![88+21=109cm 1158MeV 1200MeV ( [19] ) 0.6 10 2 [sec 1 sr 1 cm 2 ] 3cm 3cm 10cm θ =22 cos 2 0.](/docs-images/91/105929941/images/36-0.jpg "582 10 2 [sec 1 sr 1 cm 2 ] 23: θ =30 30 3 ( 2 1 ) 2 33+6=39cm 30 H 1 89cm 1 89cm 970MeV 0.50 10 2 [sec 1 sr 1 cm 2 ] 0.48 10 2 [sec 1 sr 1 cm 2 ] θ =45 45 61cm 700MeV 0.")
36 88+21=109cm 1158MeV 1200MeV ( [19] ) [sec 1 sr 1 cm 2 ] 3cm 3cm 10cm θ =22 cos [sec 1 sr 1 cm 2 ] 23: θ = ( 2 1 ) =39cm 30 H 1 89cm 1 89cm 970MeV [sec 1 sr 1 cm 2 ] [sec 1 sr 1 cm 2 ] θ = cm 700MeV [sec 1 sr 1 cm 2 ] [sec 1 sr 1 cm 2 ] θ = cm g/cm 3 ( 4m 3.5m)4m 36
37 1 2GeV 150cm 1500MeV [sr cm 2 ] [sec 1 sr 1 cm 2 ] 24: ([19] ) N N(θ) σ N = N σ N = 25.2(0 ), 13.7(30 ), 13.5(45 ), 9.8(60 ) ɛ(θ) σɛ 2 = ( ɛ N 1 ) 2 σn ( ɛ N 2 ) 2 σn 2 2 σ P MT 1 = ɛ = N 2 N 1 σ P MT 2 = N, N 1, N 2 37
38 2.4 6 ( ) count (sec 1 sr 1 cm 2 ) (sec 1 sr 1 cm 2 ) (sec 1 sr 1 cm 2 ) ± ± ± ± ± ± ± ± ± ± ± ± 1.0 6: H 25: 38
39 cos 2 ( cos 2 3GeV ) cm cos 2 θ 26 cos 2 θ θ =60 26: 39
40 3 3.1 ( ) ( cm) 3 3 (PMT) 3 ( cm)6 CAMAC Ch 1ch full scale ADC LeCroy 2249W 12Ch 0.25pC 500pC ADC LeCroy 2249W 12Ch 0.25pC 500pC TDC OCTAL TDC 8Ch 20.09ns 10ms TDC ( 27) cm 3 3cm 3cm 40MeV 2 ADC TDC ( 28)( 29) ( 30) CO COINCIDENCE OR OR GGLA GATE GENERATOR LATCH GG GATE GENERATOR 40
41 t(ns) t(ns) / 18 P P E / 18 P P E ch(tdc1) ch(tdc2) t(ns) / 18 P P E ch(tdc3) 27: tdc tdc1 tdc2 tdc3 OR PMT2 PMT3 tdc P2 1ch 20.09ns 41
42 28: 29: 42
43 PMT3 PMT VETO 2 PMT1,2 PMT2 3 PMT PMT1 ( 31) ADC PMT2 PMT 2 ADC GATE GENER- ATOR( G.G.) OUTPUT RESISTER VETO G.G. VETO VETO PMT2 G.G. G.G. VETO ( 32) 43
44 3.2.5 ADC G.G. ADC ADC 2 PMT ADC 2 PMT TDC START G.G. OR STOP 2 PMT G.G. STOP 2,3 TDC 150µs INTERRUPT RESISTER TDC START 150µs ( 33) PMT1 ADCgate(mu) CO START GGLA OUT STOP PMT2 DELAY OUTPUTREG INTERREG TDCstart PMT3 STOP OUT GGLA START OR OR IN GG OUT OUT ADCgate(e) TDCstop1 CO TDCstop2 CO TDCstop3 30: 44
45 31: 45
46 32: VETO 46
47 33: 150µs 47
48 (1,342,569sec) ADC ADC ADC 120,000 PMT3 0ch 0ch 2 PMT ADC 0ch pedestal pedestal( ch) PMT3 PMT2 PMT3 pedestal 2 PMT 2 PMT ADC 2 (PMT2,3 ADC adc12,13 ) adc12 60ch adc13 230ch 150µs 2 PMT 2 PMT (i) 2 PMT (ii) 2 PMT ( 34)( 35)( 36) 48
49 decaycount 10 3 Chain AHO -- r hbk ID Entries Mean RMS UDFLW OVFLW ALLCHAN E adc12 ch 34: PMT2 ADC 49
50 decaycount Chain AHO -- r hbk ID Entries Mean RMS UDFLW OVFLW ALLCHAN E adc13 ch 35: PMT3 ADC 50
51 ch Chain AHO -- r hbk ID ENTRIES E adc12 VS. adc13 ch 36: 2 PMT(2 3) ADC 51
52 3.3.2 TDC ADC TDC i τ µ +=2.2µs τ µ = 864ns 2.8µs 97% 1 dn decay = P (1)e t/p (2) + P (3) (15) dt ( 37) P (1) = N 2 τ µ + P (2) = τ µ + P (3) = C (C : ) P(1),P(3) P 0 (1) = 1 P 0 (3) = 2 P(2) P 0 (3) = 2200 P (1) = (6.74 ± 0.69) 10 2 P (2) = 2.07 ± 0.09 µs P (3) = 6.2 ± 0.2 ii data dn decay = P (1)e t/p (2) + P (3)e t/p (4) + P (5) (16) dt ( 38) P (1) = N 1 τ µ P (2) = τ µ P (3) = N 2 τ µ + 52
53 P (4) = τ µ + P (5) = C P(2) P 0 (2) = 864 P(1),P(3),P(4),P(5) i 2 data τ µ,τ µ + τ µ = 1.16 ± 0.35 µs τ µ + = 2.15 ± 0.13 µs µ + /µ µ + /µ τ µ +,τ µ µ + /µ τ µ + τ µ (τ µ + = ± 0.04)[15] dn decay = P (1)e t/864 + P (3)e t/ P (5) (17) dt P(1) P(3) P(1) P(3) ( 39) P (1) = N 1 τ µ P (2) = N 2 τ µ + P (3) = C P(1),P(2) τ µ,pmt2 3 π, N 2 /N 1 N % [15] µ + /µ N 2 /N 1 = P (2) 2197/(P (1) ) = 1.20 ±
54 decaycount 10 2 Chain AHO -- r hbk ID Entries Mean RMS UDFLW OVFLW ALLCHAN / 235 P P P sum ns 37: PMT2 3 TDC 2.8µs 40µs P2 54
55 decaycount 10 2 Chain AHO -- r hbk ID Entries Mean RMS UDFLW OVFLW ALLCHAN / 245 P P P P P sum ns 38: PMT2 3 TDC 40µs P2 P4 55
56 decaycount 10 2 Chain AHO -- r hbk ID Entries Mean RMS UDFLW OVFLW ALLCHAN / 247 P P P sum ns 39: PMT2 3 TDC τ µ +=2197 τ µ =864 56
57 3.4 τ µ = 1.16 ± 0.35 µs τ µ + = 2.15 ± 0.13 µs µ + /µ N 2 /N 1 = 1.20 ± 0.16 τ µ = ± µs τ µ + = ± µs [15] N 2 /N 1 = 1.27 ±
58 3.5 µs pedestal 58
59 4 4.1 ( 40) 40: PMT 59
60 ADC TDC ( 41)( 42) P (3) tdc02 e t/p (4) tdc02 dt : P (3) tdc03 e t/p (4) tdc03 dt 0 = (429 ± 27.6) (2118 ± 103) : (132.5 ± 63.0) (2203 ± 372) (18) (9) π 0 ρ(x, cos θ)sinθdθdx : P 1 π 0 0 ρ(x, cos θ)sinθdθdx 1 2 π = P : P (19) 60
61 decaycount 10 2 Chain AHO -- r hbk ID Entries Mean RMS UDFLW OVFLW ALLCHAN / 235 P P P P P tdc02 ns 41: PMT(2) tdc P(3) P(4) PMT(2) TDC 61
62 decaycount 10 2 Chain AHO -- r hbk ID Entries Mean RMS UDFLW OVFLW ALLCHAN E / 242 P P P P P tdc03 ns 42: PMT(3) tdc P(3) P(4) PMT(3) TDC 62
63 4.4 P P 100 [14] σ 2 ɛ = ( ɛ N 1 ) 2 σ 2 N 1 + ( ɛ N 2 ) 2 σ 2 N 2 (20) P = (0.51 ± 0.02) 6 P = (21) 63
64 4.5 (1) (2) PMT3 (1) (2) PMT PMT PMT PMT PMT ɛ P MT 2 = 2969 ɛ P MT 3 (22) (20) 1427 ɛ P MT 3 = 1446 ɛ P MT 2 (23) ɛ P MT 2 ɛ P MT 3 = (24) ɛ P MT 2 ɛ P MT 3 = ± (25) P = (0.53 ± 0.02) ± 6 (26) 64
65 ( 0 55MeV ) 1 2 π 0 π ρ(x, cos θ)sinθdθdx : ρ(x, cos θ)sinθdθdx (27) 1 2 π = 4X 3 6X 2 + P (2X 3 X 2 ) : 6X 2 4X 3 P (2X 3 X 2 ) (28) X
66 5 66
67 A π π m π c 2 = m µ c 2 + m ν c 2 + Q (29) E µ + E ν = Q m π m µ m ν π E π E µ E ν π P µ P ν P µ = P ν (30) E µ = (m π m µ ) 2 m 2 ν 2m π c 2 (31) µ E µ E µ 4.18MeV [3] m π m µ m ν E µ m µ c 2 = m e c 2 + m ν c 2 + m ν c 2 + Q (32) E e + E ν + E ν = Q (33) P e + P ν + P ν = P µ = 0 (34) MeV E e (max) = (m µ m e ) 2 (m ν + m ν ) 2 2m µ c 2 (35) E e (max) 53MeV [3] 67
68 B π π 1200MeV 1200MeV π ( θ θ = 0 ) (θ = 180 ) A π Q 34MeV E µ 4.18MeV (36) E ν 29.82MeV (37) E ν m π c 2 + E π = m µ c 2 + m ν c 2 + E µ + E ν (38) 1200 = E µ (39) m π c 2 = 140MeV m µ c 2 = 105MeV 0 π (m π c 2 +E π ) (m µ c 2 + E µ ) 29.82MeV π 1170MeV θ = 0 ( 1170MeV ) = 105 v µ c v µ = c (40) θ = 0 θ = 90 ( ) θ = 180 ( ) π v π = c (41) 68
69 v π = c (42) π (θ = 0 ) v µ = 105 v µ c (43) v µ = c v µ ( ) = v µ c 1 + v µ c/c 2 v µ ( ) = c (44) = c v µ = c v µ = 0 v µ ( ) = v π 1 v µ ( ) = v π π E π E 2 π 1402 = c c = c (45) Eπ 140 E π = 2205MeV (46) v µ = 0.28c v µ ( ) = 0.28c v π c v π /c 2 = c (47) v π = c (48) π E π E 2 π 1402 = c c 69 Eπ 140
70 E π = 2938MeV (49) MeV 2205MeV 2938MeV MeV 1822MeV 2429MeV MeV 1311MeV 1745MeV MeV 2822MeV 3768MeV π 70
71 [1] (2002) g [2] particle data group(2004) PHYSICS LETTERS B RE- VIEW OF PARTICLE PHYSICS [3] (1986) [4] R.Turner(1971) Polarization of Cosmic Ray Muons [5] DONALD H.PERKINS(1986) Introduction to High Energy Physics [6] (1972) [7] (1983) [8] PIERRE C.MACQ(1958) Helicity of the Electron and Positron in Muon Decay [9] SATIO HAYAKAWA(1957) Polarization of Cosmic- Ray Mesons : Theory [10] Y.Fukui(2000) Muon polarization effects in the Front End of the Neutrino Factory [11] HALE V.BRADT(1963) Polarization of Cosmic-Ray Mesons [12] STANISLAW OLBERT( 1954) Production Spectra of Cosmic- Ray Mesons in the Atmosphere [13] J.A.Morgan(1997) Neutrino Propulsion for Interstellar Spacecraft [14] S.Olbert(1954) Production Spectra of Cosmic-Ray Mesons in the Atmosphere [15] B Vulpescu(2000) The charge ratio of atmospheric muons below 1.0 GeV c 1 by measuring the lifetime of muonic atoms in aluminium [16] J.P Roalsvig(1986) Total nuclear capture for negative muons [17] G.D Badhwar(1976) Analytic representation of the protonproton and proton-nucleus and its application to the sealevel and charge ratio of muons [18] THOMAS H.JOHNSON(1932) An Interpretation of Cosmic-Ray Phenomena [19] Deba Prasad Bhattacharyya(1976) Absolute low-latitude sealevel muon intensity at large zenith angle 71
W 1983 W ± Z cm 10 cm 50 MeV TAC - ADC ADC [ (µs)] = [] (2.08 ± 0.36) 10 6 s 3 χ µ + µ 8 = (1.20 ± 0.1) 10 5 (Ge
![W 1983 W ± Z cm 10 cm 50 MeV TAC - ADC ADC [ (µs)] = [] (2.08 ± 0.36) 10 6 s 3 χ µ + µ 8 = (1.20 ± 0.1) 10 5 (Ge](/thumbs/91/105929864.jpg "W 1983 W ± Z cm 10 cm 50 MeV TAC - ADC ADC [ (µs)] = [] (2.08 ± 0.36) 10 6 s 3 χ µ + µ 8 = (1.20 ± 0.1) 10 5 (Ge")
22 2 24 W 1983 W ± Z 0 3 10 cm 10 cm 50 MeV TAC - ADC 65000 18 ADC [ (µs)] = 0.0207[] 0.0151 (2.08 ± 0.36) 10 6 s 3 χ 2 2 1 20 µ + µ 8 = (1.20 ± 0.1) 10 5 (GeV) 2 G µ ( hc) 3 1 1 7 1.1.............................
Drift Chamber
Quench Gas Drift Chamber 23 25 1 2 5 2.1 Drift Chamber.............................................. 5 2.2.............................................. 6 2.2.1..............................................
Muon Muon Muon lif
2005 2005 3 23 1 2 2 2 2.1 Muon.......................................... 2 2.2 Muon........................... 2 2.3................................. 3 2.4 Muon life time.........................................
24 10 10 1 2 1.1............................ 2 2 3 3 8 3.1............................ 8 3.2............................ 8 3.3.............................. 11 3.4........................ 12 3.5.........................
25 3 4
25 3 4 1 µ e + ν e +ν µ µ + e + +ν e + ν µ e e + TAC START STOP START veto START (2.04 ± 0.18)µs 1/2 STOP (2.09 ± 0.11)µs 1/8 G F /( c) 3 (1.21±0.09) 5 /GeV 2 (1.19±0.05) 5 /GeV 2 Weinberg θ W sin θ W
thesis.dvi
3 17 03SA210A 2005 3 1 introduction 1 1.1 Positronium............ 1 1.2 Positronium....................... 4 1.2.1 moderation....................... 5 1.2.2..................... 6 1.2.3...................
Mｏｔｔ散乱によるParity対称性の破れを検証
Mott Parity P2 Mott target Mott Parity Parity Γ = 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 t P P ),,, ( 3 2 1 0 1 γ γ γ γ γ γ ν ν µ µ = = Γ 1 : : : Γ P P P P x x P ν ν µ µ vector axial vector ν ν µ µ γ γ Γ ν γ
1 1 (proton, p) (neutron, n) (uud), (udd) u ( ) d ( ) u d ( ) 1: 2: /2 1 0 ( ) ( 2) 0 (γ) 0 (g) ( fm) W Z 0 0 β( )
( ) TA 2234 oda@phys.kyushu-u.ac.jp TA (M1) 2161 sumi@epp.phys.kyushu-u.ac.jp TA (M1) 2161 takada@epp.phys.kyushu-u.ac.jp TA (M1) 2254 tanaka@epp.phys.kyushu-u.ac.jp µ ( ) 1 2 1.1...............................................
soturon.dvi
Stopped Muon 94S2003J 11 3 10 1 2 2 3 2.1 Muon : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 3 2.2 : : : : : : : : 4 2.3 : : : : : : : : : : : : : 6 3 7 3.1 : : : : : : : : : : : : : : : :
Bethe-Bloch Bethe-Bloch (stopping range) Bethe-Bloch FNAL (Fermi National Accelerator Laboratory) - (SciBooNE ) SciBooNE Bethe-Bloch FNAL - (SciBooNE
21 2 27 Bethe-Bloch Bethe-Bloch (stopping range) Bethe-Bloch FNAL (Fermi National Accelerator Laboratory) - (SciBooNE ) SciBooNE Bethe-Bloch FNAL - (SciBooNE ) Bethe-Bloch 1 0.1..............................
main.dvi
MICE Sci-Fi 2 15 3 7 1 1 5 1.1 MICE(Muon Ionization Cooling Experiment)............. 5 1.1.1........................... 5 1.1.2............................... 7 1.1.3 MICE.......................... 10
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masato@icrr.u-tokyo.ac.jp 996 Start 997 998 999 000 00 00 003 004 005 006 007 008 SK-I Accident Partial Reconstruction SK-II Full reconstruction ( SK-III ( ),46 (40%) 5,8 (9%),9 (40%) 5MeV 7MeV 4MeV(plan)
3 1 4 1.1......................... 4 1.1.1....................... 4 1.1.2.................. 4 1.1.3 Coulomb potential.............. 5 1.2.............
Fe muonic atom X 25 5 21 3 1 4 1.1......................... 4 1.1.1....................... 4 1.1.2.................. 4 1.1.3 Coulomb potential.............. 5 1.2.......................... 6 1.2.1...................
positron 1930 Dirac 1933 Anderson m 22Na(hl=2.6years), 58Co(hl=71days), 64Cu(hl=12hour) 68Ge(hl=288days) MeV : thermalization m psec 100
positron 1930 Dirac 1933 Anderson m 22Na(hl=2.6years), 58Co(hl=71days), 64Cu(hl=12hour) 68Ge(hl=288days) 0.5 1.5MeV : thermalization 10 100 m psec 100psec nsec E total = 2mc 2 + E e + + E e Ee+ Ee-c mc
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BELLE TOP 12 1 3 2 BELLE 4 2.1 BELLE........................... 4 2.1.1......................... 4 2.1.2 B B........................ 7 2.1.3 B CP............... 8 2.2 BELLE...................... 9 2.3
2004 A1 10 4 1 2 2 3 2.1................................................ 3 2.2............................................. 4 2.3.................................................. 5 2.3.1.......................
1 2 1 a(=,incident particle A(target nucleus) b (projectile B( product nucleus, residual nucleus, ) ; a + A B + b a A B b 1: A(a,b)B A=B,a=b 2 1. ( 10
1 2 1 a(=,incident particle A(target nucleus) b (projectile B( product nucleus, residual nucleus, ) ; a + A B + b a A B b 1: A(a,b)B A=B,a=b 2 1. ( 10 14 m) ( 10 10 m) 2., 3 1 =reaction-text20181101b.tex
[ ] [ ] [ ] [ ] [ ] [ ] ADC
![[ ] [ ] [ ] [ ] [ ] [ ] ADC](/thumbs/91/107208011.jpg "[ ] [ ] [ ] [ ] [ ] [ ] ADC")
[ ] [ ] [ ] [ ] [ ] [ ] ADC BS1 m1 PMT m2 BS2 PMT1 PMT ADC PMT2 α PMT α α = n ω n n Pn TMath::Poisson(x,[0]) 0.35 0.3 0.25 0.2 0.15 λ 1.5 ω n 2 = ( α 2 ) n n! e α 2 α 2 = λ = λn n! e λ Poisson Pn 0.1
= hυ = h c λ υ λ (ev) = 1240 λ W=NE = Nhc λ W= N 2 10-16 λ / / Φe = dqe dt J/s Φ = km Φe(λ)v(λ)dλ THBV3_0101JA Qe = Φedt (W s) Q = Φdt lm s Ee = dφe ds E = dφ ds Φ Φ THBV3_0102JA Me = dφe ds M = dφ ds
Donald Carl J. Choi, β ( )
:: α β γ 200612296 20 10 17 1 3 2 α 3 2.1................................... 3 2.2................................... 4 2.3....................................... 6 2.4.......................................
( ) Note (e ) (µ ) (τ ) ( (ν e,e ) e- (ν µ, µ ) µ- (ν τ,τ ) τ- ) ( ) ( ) (SU(2) ) (W +,Z 0,W ) * 1) 3 * 2) [ ] [ ] [ ] ν e ν µ ν τ e
![( ) Note (e ) (µ ) (τ ) ( (ν e,e ) e- (ν µ, µ ) µ- (ν τ,τ ) τ- ) ( ) ( ) (SU(2) ) (W +,Z 0,W ) * 1) 3 * 2) [ ] [ ] [ ] ν e ν µ ν τ e](/thumbs/98/136160482.jpg "( ) Note (e ) (µ ) (τ ) ( (ν e,e ) e- (ν µ, µ ) µ- (ν τ,τ ) τ- ) ( ) ( ) (SU(2) ) (W +,Z 0,W ) * 1) 3 * 2) [ ] [ ] [ ] ν e ν µ ν τ e")
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V(x) m e V 0 cos x π x π V(x) = x < π, x > π V 0 (i) x = 0 (V(x) V 0 (1 x 2 /2)) n n d 2 f dξ 2ξ d f 2 dξ + 2n f = 0 H n (ξ) (ii) H
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