T Violation in n-A Reactions Neutron Optical Parity and - - PowerPoint PPT Presentation
page 1 T Violation in n-A Reactions Neutron Optical Parity and Time-Reversal EXperiment Hirohiko M. SHIMIZU Department of Physics, Nagoya University shimizu@phi.phys.nagoya-u.jp on behalf of the NOPTREX collaboration Title(T Violation in n-A
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
1
Department of Physics, Nagoya University
Hirohiko M. SHIMIZU
shimizu@phi.phys.nagoya-u.jp
Neutron Optical Parity and Time-Reversal EXperiment
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
2
Neutron EDM ( )
atomic QCD
Fundamental CP phases
TeV
Energy
nuclear
EDMs of paramagnetic molecules (YbF, PbO, HfF+) Atoms in traps (Tl,Rb,Cs) EDMs of diamagnetic atoms (Hg,Xe,Ra,Rn) EDMs of nuclei and ions (deuteron, etc) Muon EDM
Pospelov Ritz, Ann Phys 318 (05) 119 gluon self-couplings eN couplings
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
3
45h or 2h to reach nEDM “upper limit” (30d or 1d with existing technologies)
nucleon
Neutron EDM ( )
atomic QCD
Fundamental CP phases
TeV
Energy
nuclear
EDMs of paramagnetic molecules (YbF, PbO, HfF+) Atoms in traps (Tl,Rb,Cs) EDMs of diamagnetic atoms (Hg,Xe,Ra,Rn) EDMs of nuclei and ions (deuteron, etc) Muon EDM
Pospelov Ritz, Ann Phys 318 (05) 119 gluon self-couplings eN couplings
compound state experiment
enhanced sensitivity in compound nuclei
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
4
W.M.Snow, J.Curole, J.Carini
Indiana University
V.Gudkov
B.Plaster, D.Schaper, C.Crawford
Kentucky Univ.
J.D.Bowman, S.Penttila, X.Tong, P.Jiang
Oak Ridge National Lab.
P.Hautle
Paul Scherrer Institut
A.S.Tremsin
Southern Illinois University
B.M.Goodson M.Veillette
Berea College
H.M.Shimizu, M.Kitaguchi, K.Hirota, T.Yamamoto, K.Ishizaki, S.Endoh, T.Sato, Y.Niinomi, T.Morishima, G.Ichikawa, Y.Kiyanagi, J.Hisano, N,Wada, T.Matsushita T.Yoshioka, S.Takada, J.Koga, S.Makise T.Okudaira, K.Sakai, A.Kimura, H.Harada
Nagoya University Kyushu University JAEA
Y.Yamagata, T.Uesaka, K.Tateishi, H.Ikegami
RIKEN
T.Ino, S.Ishimoto, K.Taketani, K.Mishima, C.C.Haddock
KEK
Y.I.Takahashi, M.Hino
Kyoto Univ.
T.Iwata, Y.Miyachi
Yamagata Univ.
T.Momose
Hiroshima Univ.
M.Iinuma
Osaka Univ.
K.Ogata, H.Kohri, M.Yosoi, T.Shima, H.Yoshikawa
Tohoku Univ.
M.Fujita H.Fujioka
Tokyo Inst. Tech.
D.Takahashi
Ashikaga Univ.
R.Ishiguro
Japan Women’s Univ.
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
5
n+139La
140La
(En=0) (En=0.75eV) (En=-48.6eV) 5160.902 keV
absorption cross section total cross section s-wave (l=0) p-wave (l=1)
1eV 1MeV 1keV neutron energy [eV] cross section [b]
(compound nuclei) thermal epithermal fast
P-violation
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
6
compound state entrance channel exit channel p-wave s-wave p j=3/2 p j=1/2
s j=1/2 mostly unknown
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
7
n spin nuclear spin compound nuclear spin n entrance spin channel spin
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
8
compound state exit channel entrance channel p-wave s-wave p 3/2 p 1/2
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
9
Spin Independent P-even T-even Spin Dependent P-even T-even P-violation P-odd T-even T-violation P-odd T-odd
Gudkov, Phys. Rep. 212 (1992) 77
T-violation P-violation
angular momentum factor
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
10
Spin Independent P-even T-even Spin Dependent P-even T-even P-violation P-odd T-even Spin Independent P-even T-even T-violation P-odd T-odd Spin Dependent P-even T-even P-violation P-odd T-even T-violation P-odd T-odd
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
11
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
nucleon
12
Neutron EDM ( )
atomic QCD
Fundamental CP phases
TeV
Energy
nuclear
EDMs of paramagnetic molecules (YbF, PbO, HfF+) Atoms in traps (Tl,Rb,Cs) EDMs of diamagnetic atoms (Hg,Xe,Ra,Rn) EDMs of nuclei and ions (deuteron, etc) Muon EDM
Pospelov Ritz, Ann Phys 318 (05) 119 gluon self-couplings eN couplings
compound state experiment
done for 139La done via likelihood analysis V.P.Gudkov
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
13
Y.-H.Song et al., Phys. Rev. C83 (2011) 065503
T-odd P-odd meson couplings
~
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
14
Y.H.Song et al., Phys. Rev. C83(2011) 065503 Gudkov, Phys. Rep. 212 (1992) 77 Flambaum, Phys. Rev. C51 (1995) 2914
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
15
[deg] φ
50 100 150 200 250 300 350
)| J ( κ |
3 −
10
2 −
10
1 −
10 1 10
2
10
3
10
kappa_final(x*3.141592653589/180.,[0], [1])
zzzz
139La I=7/2 J=4 131Xe I=3/2 J=1 117Sn I=1/2 J=1 81Br I=3/2 J=2
x2 = Γn
p,j= 1
2
Γn
p
, y2 = Γn
p,j= 3
2
Γn
p
.
κ(J) = ⎧ ⎪ ⎨ ⎪ ⎩ (−1)2I 1 + 1
2
I+1 y x
2)
(−1)2I+1
I I+1
2
I y x
2)
zzzz
x = cos φ, y = sin φ.
x2 + y2 = 1
φ : necessary to estimate κ(J)
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
16
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
a0 =
Js,j |V2(Jpj)|2
a1 = 2Re
Js,Jp,j V1(Js)V 2 (Jpj)P(JsJp 1 2j1IF)
a2 = −2Im
Js,Jp,j V1(Js)V 2 (Jpj)βjP(JsJp 1 2j1IF)
a3 = Re
Js,j,J
p,j V2(Jpj)V
2 (J pj)P(JpJ pjj2IF)3
√ 10
1 1
1 2 1 2
2 j j
= −Im
Js,j,J
p,j V2(Jpj)V
2 (J pj)P(JpJ pjj2IF)6
√ 5
1 1 1
1 2 1 2
2 j j
= −Re
s V1(Jsj)V
1 (J sj)P(JsJ s 1 2 1 21IF) + Jp,j,J
p,j V2(Jpj)V
2 (J pj)P(JpJ pjj1IF)6
1 1
1 2 1 2
1 j j
= −2Re
Js V1(Jsj)V 2 (Jp = Js, 1 2)
a7 = Re
Js,Jp V1(Js)V 2 (Jp 3 2)P(JsJp 1 2 3 22IF)
a8 = −Re
Jp,j,J
p,j V2(Jpj)V
2 (J pj)P(JpJ pjj1IF)18
1 1 1
1 2 1 2
1 j j
= −2Re
s V1(Jsj)V
3 (J sj)P(JsJ s 1 2 1 21IF) + Jp,j,J
p,j V2(Jpj)V
4 (J pj)P(JpJ pjj1IF)6
1 1
1 2 1 2
1 j j
= −2Re
Js
2)V 3 (Js) + V1(Js)V 4 (Jp = Js, 1 2)
= 2Re
Js,Jp
2)V 3 (Js) + V1(Js)V 4 (Jp 3 2)
√ 3P(JsJp 1
2 1 32IF)
a12 = −Re
Js,j,J
p,j V2(Jpj)V
4 (J pj)P(JpJ pjj1IF)18
1 1 1
1 2 1 2
1 j j
= 2Re
3 (Js) + Jpj V2(Jpj)V 4 (Jpj)
= 2Re
JsJpj [V2(Jpj)V 3 (Js) + V1(Js)V 4 (Jpj)] P(JsJp 1 2j1IF)
a15 = 2Im
JsJpj [V2(Jpj)V 3 (Js) − V1(Js)V 4 (Jpj)] βjP(JsJp 1 2j1IF)
a16 = 2Re
Jp,j,J
p,j V2(Jpj)V
4 (J pj)P(JpJ pjj2IF)3
√ 10
1 1
1 2 1 2
2 j j
= −2Im
Jp,j,J
p,j V2(Jpj)V
4 (J pj)P(JpJ pjj2IF)6
√ 5
1 1 1
1 2 1 2
2 j j
Flambaum, Nucl. Phys. A435 (1985) 352
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
18
(n,γ)反応を測
BL04 ANNRI
Ge detector
disk chopper T0 chopper filter collimator
beam stopper
21.5m Ge detector
clustered set
2 clustered sets 7ch ×2 : 14ch 8 coaxial units 8ch Total 22ch
co-axial units
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
19 [us] TOF
1200 1400 1600 1800 2000 2200
[ k e V ]
γ
E
5000 5050 5100 5150 5200 5250
[arbitrary unit]
γ
1 2 3 4 5
[eV]
n
E
0.6 0.8 1.2 1.41.6
γ
a y e n e r g y ( k e V )
N e u t r
e n e r g y ( e V )
Ground state First, Second excited state Third excited state p-wave resonance
γ-ray yield (arbitrary unit)
139La+n
ground 3- 30 keV 2- 35 keV 5-
140La
63 keV 4- Neutron Energy γ-ray Energy
0.758 eV p-wave
72.30 eV s-wave
5161 keV
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
20
71 ° 36° 72 ° 108° 90 ° 109° 144°
Downstream
[eV]
lap
E
0.2 0.4 0.6 0.8 1 1.2 1.4
[arbitrary unit]
lap
E ∂ /
γ
I ∂
1 2 3 4 5
= 36 deg
γ
θ [eV]
lap
E
0.2 0.4 0.6 0.8 1 1.2 1.4
[arbitrary unit]
lap
E ∂ /
γ
I ∂
1 2 3 4 5
= 71 deg
γ
θ [eV]
lap
E
0.2 0.4 0.6 0.8 1 1.2 1.4
[arbitrary unit]
lap
E ∂ /
γ
I ∂
1 2 3 4 5
= 72 deg
γ
θ [eV]
lap
E
0.2 0.4 0.6 0.8 1 1.2 1.4
[arbitrary unit]
lap
E ∂ /
γ
I ∂
1 2 3 4 5
= 90 deg
γ
θ [eV]
lap
E
0.2 0.4 0.6 0.8 1 1.2 1.4
[arbitrary unit]
lap
E ∂ /
γ
I ∂
1 2 3 4 5
= 108 deg
γ
θ [eV]
lap
E
0.2 0.4 0.6 0.8 1 1.2 1.4
[arbitrary unit]
lap
E ∂ /
γ
I ∂
1 2 3 4 5
= 144 deg
γ
θ [eV]
lap
E
0.2 0.4 0.6 0.8 1 1.2 1.4
[arbitrary unit]
lap
E ∂ /
γ
I ∂
1 2 3 4 5
= 109 deg
γ
θ
Neutron Energy[eV] Neutron Energy[eV] Neutron Energy[eV] Neutron Energy[eV] Neutron Energy[eV] Neutron Energy[eV] Neutron Energy[eV]
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
21
0.5 − 0.5 0.4 − 0.2 − 0.2
[eV] E
0.2 0.4 0.6 0.8 1 1.2 1.4 1 2 3 4 5
H
Ν
L
Ν
NL NH
Neutron Energy[eV]
ALH = NL − NH NL + NH .
36deg detector
ALH as a function of emission angle
ALH(θγ)=Acosθγ + B A=-0.388±0.024 B=-0.075±0.011
Measured angular dependence Flambaum parametrization
c c
Comparison with Flambaum’s formalism
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
1 − 0.5 − 0.5 1 0.5 − 0.5 1 − 1
1
φ sin
1
φ cos
22
Okudaira et al., PRC97(2018)034622
−1.69,
−0.07
x = −0.16+0.09
−0.11,
−0.95+0.03
−0.04.
= 0.295 cos φ1 − 0.345 sin φ1.
page Title(Discrete Symmetry Violation in Neutron-induced Compound States for New Physics Search) Conf(International Workshop for Particle Physics at Neutron Sources (PPNS2018)) Date(2018/05/26) At(Grenoble)
Experimental Apparatus
biological shield p 500MeV spallation moderation
238UH2O
20Hz ~5µAsuperconducting magnet 2.5T beam monitor γ
collimator collimatorSpallation Neutron Source Dynamically Polarized Proton Filter as Neutron Polarizer γ-ray Detectors Neutron Detector
BaF2 10B loaded liquid scintillator
Adiabatic Passage Transmittance Monitor
Ti-sapphire Ar laser Ti-sapphire Ar laserAdiabatic Passage Adiabatic Passages Superconducting Magnetic Shield
Target Rotatable
Polarized Neutron Source Target station Neutron Spin Analyzer
23
page Title(Behavior of Neutron Spin in Polarized Nuclear Target for the T-violation Search in Compound Nuclei) Conf(5th Joint Meeting of the Nuclear Physics Divisions of APS and JPS (HAW2018)) Date(2018/10/27) At(Waikoloa)
24
Spin Dependent P-even T-even P-violation P-odd T-even Spin Independent P-even T-even T-violation P-odd T-odd Spin Dependent P-even T-even P-violation P-odd T-even Spin Independent P-even T-even T-violation P-odd T-odd
page Title(Discrete Symmetry Violation in Neutron-induced Compound States for New Physics Search) Conf(International Workshop for Particle Physics at Neutron Sources (PPNS2018)) Date(2018/05/26) At(Grenoble)
with ultimate polarizations reaches the discovery potential in 45 hours with reported polarizations reaches to the discovery potential in 30 days
1 −
10 1 10
2
10
7 −
10
6 −
10
5 −
10 Graph
Measurement Time [day]
ultimate polarizations reported polarizations
corresponding to dn =3.0×10-26 e cm corresponding to dn =3.0×10-27 e cm
P(3He)=100%, P(139La)=100% P(3He)=70%, P(139La)=40%
25
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
1 − 0.5 − 0.5 1 0.5 − 0.5 1 − 1
1
φ sin
1
φ cos
26
x = −0.16+0.09
−0.11,
−0.95+0.03
−0.04.
= 0.295 cos φ1 − 0.345 sin φ1.
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
27
P-even T-odd P-odd T-even P-even T-even
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
28
Spin Independent P-even T-even Spin Dependent P-even T-even P-violation P-odd T-even T-violation P-odd T-odd
potential scattering compound resonance
V.Gudkov and HMS, Phys. Rev. C95 045501 (2017)
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
29
page Title(Discrete Symmetry Violation in Neutron-induced Compound States for New Physics Search) Conf(International Workshop for Particle Physics at Neutron Sources (PPNS2018)) Date(2018/05/26) At(Grenoble)
30
lattice temperature electron spin temperature nuclear spin temperature
lattice temperature electron spin temperature nuclear spin temperature
page Title(Discrete Symmetry Violation in Neutron-induced Compound States for New Physics Search) Conf(International Workshop for Particle Physics at Neutron Sources (PPNS2018)) Date(2018/05/26) At(Grenoble)
31
RCNP Osaka univ.
SPring-8 BL33LEP beamline HD target TC1 DRS SC IBC TC2
HD gas distillation system
SC SC IBC K+ K-
18
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
32
Mitchell, Phys. Rep. 354 (2001) 157 Shimizu, Nucl. Phys. A552 (1993) 293
139La 81Br 117Sn 109Ag 238U 232Th 121Sb 131Xe 113Cd 238U 115Rh 133Cs 107Ag 127I 232Th 232Th 111Cd 232Th 232Th 109Ag 113Cd 115In 115In
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
33
Mitchell, Phys. Rep. 354 (2001) 157 Shimizu, Nucl. Phys. A552 (1993) 293
139La 81Br 117Sn 109Ag 238U 232Th 121Sb 131Xe 113Cd 238U 115Rh 133Cs 107Ag 127I 232Th 232Th 111Cd 232Th 232Th 109Ag 113Cd 115In 115In
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
34
Mitchell, Phys. Rep. 354 (2001) 157 Shimizu, Nucl. Phys. A552 (1993) 293
139La 81Br 117Sn 109Ag 238U 232Th 121Sb 131Xe 113Cd 238U 115Rh 133Cs 107Ag 127I 232Th 232Th 111Cd 232Th 232Th 109Ag 113Cd 115In 115In
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
35
J-PARC LANL J-PARC RCNP RIKEN JAEA KEK JAEA
SEOP Triplet-DNP
Titech, RIKEN IPNS J-PARC E?? 2018S12 Project
“Development of Polarized Target for New Physics Search via T-violation”
IMSS
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
36
W.M.Snow, J.Curole, J.Carini
Indiana University
V.Gudkov
B.Plaster, D.Schaper, C.Crawford
Kentucky Univ.
J.D.Bowman, S.Penttila, X.Tong, P.Jiang
Oak Ridge National Lab.
P.Hautle
Paul Scherrer Institut
A.S.Tremsin
Southern Illinois University
B.M.Goodson M.Veillette
Berea College
H.M.Shimizu, M.Kitaguchi, K.Hirota, T.Yamamoto, K.Ishizaki, S.Endoh, T.Sato, Y.Niinomi, T.Morishima, G.Ichikawa, Y.Kiyanagi, J.Hisano, N,Wada, T.Matsushita T.Yoshioka, S.Takada, J.Koga, S.Makise T.Okudaira, K.Sakai, A.Kimura, H.Harada
Nagoya University Kyushu University JAEA
Y.Yamagata, T.Uesaka, K.Tateishi, H.Ikegami
RIKEN
T.Ino, S.Ishimoto, K.Taketani, K.Mishima, C.C.Haddock
KEK
Y.I.Takahashi, M.Hino
Kyoto Univ.
T.Iwata, Y.Miyachi
Yamagata Univ.
T.Momose
Hiroshima Univ.
M.Iinuma
Osaka Univ.
K.Ogata, H.Kohri, M.Yosoi, T.Shima, H.Yoshikawa
Tohoku Univ.
M.Fujita H.Fujioka
Tokyo Inst. Tech.
D.Takahashi
Ashikaga Univ.
R.Ishiguro
Japan Women’s Univ.
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
37
page
Title(T Violation in n-A Reactions) Conf(Theoretical Issues and Experimental Opportunities in Searches for Time Reversal Invariance Violation) Date(2018/12/07) At(Amherst)
38