Conference summary (experimental) talk - Rencontres du Vietnam - 2017.07

1. EXPERIMENTAL
SUMMARY
Alan Poon
Institute for Nuclear and Particle Astrophysics
1

2. • This has been a great
week: great talks, great
venue, great people…
• Thank you, organizers,
staff and volunteers!

3. • This has been a great
week: great talks, great
venue, great people…
• Thank you, organizers,
staff and volunteers!
• I cannot possibly
discuss every talk.
Sorry!

4. The three-neutrino mixing paradigm
C. Guinti

5. Neutrino Sources
F. Vannucci
Neutrino grand spectrum
300 / cm3
65 billions / cm2 / s
1058 in 10 s
10-12
10-8
10-4
100
104
108
1012
1016
1020
1024
Flux(cm-2s-1MeV-1)
10-6 10-3 1 103 106 109 1012 1015 1018
µeV meV eV keV MeV GeV TeV PeV EeV
Neutrino energy (eV)
Cosmological neutrinos
Solar neutrinos
Supernova neutrinos
geoneutrinos
Nuclear reactors
Atmospheric neutrinos
AGN neutrinos

6. Solar Neutrinos
Davis Bahcall

7. Solar Neutrinos

8. Solar Neutrinos

9. Neutrino mass and mixing
Plot from H. Muryama/PDG
Before 1998

10. Neutrino mass and mixing
Plot from H. Muryama/PDG
Before 1998

11. Neutrino mass and mixing
Plot from H. Muryama/PDG
Before 2002

12. Neutrino mass and mixing
Plot from H. Muryama/PDG
Before 2002

13. Neutrino mass and mixing
Plot from H. Muryama/PDG
2002

14. Neutrino mass and mixing
Plot from H. Muryama/PDG
2004

15. Neutrino mass and mixing
Plot from H. Muryama/PDG
Neutrino physics enters
the era of precision
measurement,
yet there are still a lot of
know unknowns
(discoveries to be made)
2004

16. Neutrino mass and mixing
Plot from H. Muryama/PDG

17. Solar neutrinos
If it is on The Big Bang Theory, it must be exciting physics

18. Solar neutrinos - Final SNO results
• Resolved solar neutrino problem
• Demonstrated flavor transformation
• consistent with LMA prediction
N. Barros

19. Solar neutrinos - SuperKamiokande
Y. Takeuchi
Day-Night effect

20. Solar neutrinos - SuperKamiokande
Y. Takeuchi
up-turn at low energy?

21. Solar neutrinos

22. Solar neutrinos - SuperKamiokande
Y. Takeuchi
Consistent with constant solar neutrino flux

23. The last plot is really truly amazing….
Bahcall: 94% correlation between number of sunspots and solar neutrino flux

24. But then…

25. Flavor transformation (Appearance)
SNO
Statistical separation
SNO was the first
“appearance” experiment
to provide direct evidence for
active flavor transformation

26. Flavor transformation (Appearance)
SuperKamiokande
Statistical separation
+ IceCube/DeepCore (coming)
S. Mine

27. Flavor transformation (Appearance)
Event by event
S. Vasina
OPERA experiment

28. Reactor neutrinos and θ13

29. Reactor neutrinos and θ13
Far
Near

30. Reactor neutrinos
Daya Bay
RENO
• Two sets of detectors (far and near)
νe + p → n + e+
(8 MeV)
Gd
Gu, Choi, Vivier

31. Reactor neutrinos
RENO
Gu, Choi, Vivier
Daya Bay
RENO
Double Chooz

32. Reactor neutrinos and θ13
2-Detector mode (Far+Near)RENO
Double Chooz
sin2(2θ13) |Δmee2| x 10-3 eV2
Daya Bay 0.0841 ± 0.0027 ± 0.0019 2.50 ± 0.06 ± 0.06
RENO 0.086 ± 0.006 ± 0.005 2.61 ± 0.15 ± 0.09
Double Chooz 0.123 ± 0.023
Daya Bay
Gu, Choi, Vivier

33. Reactor neutrinos and θ13
2-Detector mode (Far+Near)RENO
Double Chooz
sin2(2θ13) |Δmee2| x 10-3 eV2
Daya Bay 0.0841 ± 0.0027 ± 0.0019 2.50 ± 0.06 ± 0.06
RENO 0.086 ± 0.006 ± 0.005 2.61 ± 0.15 ± 0.09
Double Chooz 0.123 ± 0.023
Daya Bay
Gu, Choi, Vivier
statistics limited

34. Reactor neutrino anomaly - I
Daya Bay
RENO
Double Chooz
All saw “bump” at ~5 MeV, similar
shape
Likely due to nuclear fission modeling
and not new neutrino properties
Gu, Choi, Vivier

35. Reactor neutrino anomaly - II
Reactor physics
or
Sterile neutrinos?
Kandzia, Littlejohn

36. Daya Bay fuel cycle study
Gu

37. Very SBL reactor anti-neutrino experiments
@ILL
• HEU
• Baseline 8.9-11.1m
• Gd-loaded liquid scintillator
• 70d reactor-on (2017) data
• Analysis in progress
• Refurbishment
• To re-start Sep/Oct 2017
Kandzia

38. Very SBL reactor anti-neutrino experiments
@ILL
• HEU
• Baseline 8.9-11.1m
• Gd-loaded liquid scintillator
@HFIR
• HEU
• Multiple baseline
• LiLS: EJ309-based scintillator
• 70d reactor-on (2017) data
• Analysis in progress
• Refurbishment
• To re-start Sep/Oct 2017
• Prototypes in phased approach:
PROSPECT 0.1, 2, 20, 50
• AD1 in construction, operation
in 2017 later.
Kandzia Littlejohn

39. Very SBL reactor anti-neutrino experiments
@ILL
• HEU
• Baseline 8.9-11.1m
• Gd-loaded liquid scintillator
@HFIR
• HEU
• Multiple baseline
• LiLS: EJ309-based scintillator
• 70d reactor-on (2017) data
• Analysis in progress
• Refurbishment
• To re-start Sep/Oct 2017
• Prototypes in phased approach:
PROSPECT 0.1, 2, 20, 50
• AD1 in construction, operation
in 2017 later.
Kandzia Littlejohn
+ DANSS,
NuLat,
Neutino4,
SoLid,
Chandler

40. Very SBL reactor anti-neutrino experiments
@Hanbit Unit 5
• LEU
• Baseline ~ 23.7m
• Gd-loaded liquid scintillator
NEOS
Kim

41. “Source calibration” - SOX
• 144Ce-144Pr source (100-150 kCi)
• Borexino detector
• Special attention to:
• source activity measurement
• source β spectrum
• source transport
• detector calibration (FV, response)
Source delivery between
January 2018 and March 2018
Vivier

42. Sterile neutrino searches at accelerator
Kawasaki

43. Sterile neutrino searches at accelerator
MiniBooNE (event excess)
JSNS2
[Kawasaki]
SBN@FNAL
NuPRISM
[Escudero-Sanchez]

44. MINOS/MINOS+
Simultaneous ND/FD fit
Combine with Daya Bay electron
antineutrino disappearance search to
place a limit in the LSND/MiniBooNE
parameter space
Evans

45. NA62
Minucci

46. θ23 , Δm232, δCP

47. θ23 , Δm232
Thomas, Bienstock, Vasina, Evans

48. T2K
ND280
Improved systematic uncertainties in the oscillation analysis from ~14% to ~6%
Bienstock

49. T2K
Bienstock

50. T2K
Bienstock

51. NOνA
• 6.05x1020 POT equivalent
• 473 ± 30 events predicted in
the absence of oscillations
• Observed 78 events
Thomas

52. NOνA
Thomas

53. NOνA
Thomas

54. θ23 - Tension
Bienstock

55. T2K - First hints of δCP
Bienstock

56. Δm223
Vasina

57. Cross sections, systematics….
MINERνA [Harris]
NINJA [Morimoto]
ND280/T2K [Koch]

58. Mass Hierarchy & CPV - Future

59. CPV & MH - Future
JUNO (20kt LS)
IceCube/DeepCore/PINGU
Supernovae
Now
2026
KM3Net-ORCA
DUNE (40 kt LAr)
[Coelho]
[DeYoung]
[Gu]
[Scholberg]
[Ji]
[Takeuchi]Hyper-K (187 kt H2O FV)
INO
[Singh]
CHIPS
[Thomas]
SuperK
[Mine]

60. CPV & MH - Future
Hyper-K
Technologies that I found impressive
protoDUNE dual-phase
LAr TPC R&D
Reached design spec of 2.5 kV/cm extraction field
[Zambelli]
[Takeuchi]

61. CPV & MH - Future
Gu, DeYoung, Coelho
3y
MH
MH

62. CPV & MH - Future
Takeuchi, Ji

63. Neutrino mass scale
⇡+
! µ+
+ ⌫µ

64. KATRIN
AP
First light (2016.10) - beamline clear
83mKr (2017.07) Good performance
• Commissioning phase
• Rydberg H* atom background:
• Run and field optimization
• mβ ~ 240 meV
• 3H run to start in 2018

65. Neutrinoless Double-Beta Decay

66. “Vanilla” mass mechanism
(T0⌫
1/2) 1
= G0⌫(Q , Z) |M0⌫|
2
hm i2
form
factor
nuclear
matrix
element
effective
Majorana
mass
hm i =
3X
i=1
U2
eimi
Normal Ordering Inverted Ordering
mass
1
2
3
1
2
3
m2
23 50 meV
m2
12 8 meV
mass
msmallest
Halflife mass scale

67. Signal
67
Energy resolution and low backgrounds are keys!
T1/2 ~ 1018-20 y T1/2 > 1026 y

68. Considerations
• Preferably:
• high isotopic abundance
• high efficiency
• large mass
• long exposure
• low background
• good energy resolution
There is not an
obvious choice
of isotope or
detector
technology

69. Many experimental ideas…presented here
Päs & Rodejohann, New J. Phys. 17 115010 (2015)
69

70. Many experimental ideas…presented here
70
GERDA
CUORE SNO+
CUPID-0
+
other “CUPIDs”
Schütz, Fujikawa, Nones,
Casali, Giuliani, Barrros, Hogan

71. 0νββ news - GERDA (76Ge)
Schütz

72. 0νββ news - CUORE (130Te)
Fujikawa

73. 0νββ trailers - CUPIDs
Nones
CUPID-0 (Zn82Se)
Guliani
CUPID-Mo
Cardini
Kinetic Inductance Detectors
Problem: alpha background

74. 0νββ trailers
SNO+
SuperNEMO
Hugon
Barros
“ton-scale”
LEGEND
Schütz

75. Mass sensitivity
Gerda-II
arXiv:1605.02889v1

76. Neutrino messengers

77. Neutrino messengers - geo-neutrinos
Shirahata
KamLAND

78. Neutrino messengers - geo-neutrinos
Shirahata

79. IceCube - astrophysical neutrinos
Arguelles Delgado
Astrophysical neutrinos
New 6 year high energy starting
events result: softer spectrum,
consistent with one power law.
No astrophysical tau neutrinos
observed

80. Neutrino messengers — ANTARES/KM3Net
Excellent pointing
Constraints on the origin of the IceCube signal

81. In just 20 years…
• Our signals have become others’ backgrounds

82. In just 20 years…
• Our signals have become others’ backgrounds
• Track info to suppress directional
background
• Fine-grained nuclear emulsion
Vasina

83. Coherent neutrino-nucleus scattering
COHERENT @ SNS
Reactor
CONNIE - CCD
MINER - Ge/Si
TEXONO - PCGe
Accelerator
Sharma

84. Dark matter searches - sounding rocket
Hubbard
Micro-X
±2σ
±1σ
Boyarsky claim

85. A new beginning - ν @ ICISE
7.17.17
Congratulations on this new chapter in neutrino physics in VN.