List of neutrino experiments

Last updated

Neutrino experiments are scientific studies investigating the properties of neutrinos, which are subatomic particles that are very difficult to detect due to their weak interactions with matter. Neutrino experiments are essential for understanding the fundamental properties of matter and the universe's behaviour at the subatomic level. Here is a non-exhaustive list of neutrino experiments, neutrino detectors, and neutrino telescopes.

Contents

AbbreviationFull nameSensitivity [a] TypeInduced reactionType of reaction [b] DetectorType of detectorThreshold energyLocationOperationHome page
ANNIE Accelerator Neutrino Neutron Interaction Experiment SciBooNE Hall, Illinois, United Statesfuture
ANTARES Astronomy with a Neutrino Telescope and Abyss Environmental RESearchATM, CR, AGN, PUL
ν
e
,
ν
μ
,
ν
τ
Seawater Cherenkov Mediterranean Sea, France2006–
ARIANNA Antarctic Ross Ice-Shelf ANtenna Neutrino ArrayS, CR, AGN, ?
ν
e
,
ν
μ
,
ν
τ
Ross Ice Shelf, Antarctica future
BDUNT (NT-200+)
Baikal-GVD
Baikal Deep Underwater Neutrino Telescope /
Gigaton Volume Detector
S, ATM, LS, AGN, PUL
ν
e
,
ν
μ
,
ν
τ
CC, NC Water (H2O) Cherenkov ≈10 GeV Lake Baikal, Russia1993–
BOREXINO BORon EXperimentLS
ν
e

ν
x +
e

ν
x +
e
ES LOS shielded by water Scintillation 250–665 keV Gran Sasso, ItalyMay 2007–
BUST Baksan Underground Scintillation Telescope Scintillation Baksan River valley, Russia1977–
CCMCoherent CAPTAIN-MillsAC
ν
e
CCLiquid Argon Scintillation 50 keV Los Alamos Neutron Science Center 2019-
CHANDLER Carbon Hydrogen AntiNeutrino Detector with a Lithium Enhanced Raghavan-optical-latticeR
ν
e

ν
e
+
p

e+
+
n
CCWLS Plastic Scintillating Cubes and Lithium-6-loaded Zinc Sulfide SheetsScintillation1.8 MeVNorth Anna, Virginia, USJune 2017-
CLEAN Cryogenic Low-Energy Astrophysics with NeonLS, SN, WIMP
ν
e

ν
x +
e

ν
x +
e


ν
e
+ 20
Ne

ν
e
+ 20
Ne

ES
ES
Liquid Ne (10  t) Scintillation SNOLAB
Ontario, Canada
future
COBRA Cadmium zinc telluride 0-neutrino double-Beta Research Apparatus64
Zn
+
e
64
Ni
+
e+

70
Zn
70
Ge
+
e
+
e

106
Cd
106
Pd
+
e+
+
e+

108
Cd
+
e
+
e
108
Pd

114
Cd
114
Sn
+
e
+
e

116
Cd
116
Sn
+
e
+
e

120
Te
+
e
120
Sn
+
e+

128
Te
128
Xe
+
e
+
e

130
Te
130
Xe
+
e
+
e
BB Cadmium zinc telluride Gran Sasso, Italy2007–
COHERENTCOHERENTAC
ν
μ
,
ν
μ
,
ν
e

ν
+ nucleus →
ν
+ nucleus
NCCsI[Na], NaI[Tl], HPGe, LArCoherent Elastic Neutrino Nucleus Scattering (CEvNS)few keV nuclear recoil energy Spallation Neutron Source at Oak Ridge National Laboratory Nov 2016-
Daya Bay Daya Bay Reactor Neutrino ExperimentR
ν
e

ν
e
+
p

e+
+
n
CC Gd-doped LAB (LOS) Scintillation 1.8 MeV Daya Bay, China2011–2020
Double Chooz Double Chooz Reactor Neutrino ExperimentR
ν
e

ν
e
+
p

e+
+
n
CC Gd-doped LOS Scintillation 1.8 MeV Chooz, France2011–2017
DUNE Deep Underground Neutrino ExperimentAC, ATM, (S), SNallNC, CC, (ES)Liquid argon Scintillation & Time projection chamber around 10 MeV Sanford Underground Research Facility construction start 2017
ENUBET Enhanced NeUtrino BEams from kaon TaggingAC
ν
e
,
ν
μ


ν
e
,
ν
μ

ν
e
+
n

e
+
p
(+π, +X)

ν
μ
+
n

μ
+
p
(+π, +X)


ν
e
+
p

e+
+
n
(+π, +X)

ν
μ
+
p

μ+
+
n
(+π, +X)

CC

(NC)

future
ESSnuSB The European Spallation Source neutrino Super BeamAC
ν
μ
,
ν
μ
(Background:
ν
e
,
ν
e
)
WaterWater Cherenkov MEMPHYS detector0.36 GeVGarpenberg, Lund, Swedenfuture by 2023 [1] [2]
FASER ForwArd Search ExpeRimentC
ν
e
,
ν
μ
,
ν
τ

ν
+ N →

+ X
CC + NC Tungsten Emulsion>10 GeV Large Hadron Collider 2022-
EXO-200 Enriched Xenon Observatory134
Xe
134
Ba
+
e
+
e

136
Xe
136
Ba
+
e
+
e
BBLiquid Xenon WIPP, New Mexico 2009–
GALLEX GALLium EXperimentLS
ν
e

ν
e
+ 71
Ga
71
Ge
+
e
CC GaCl3 (30  t ) Radiochemical 233.2 keV Gran Sasso, Italy1991–1997
GERDA The GERmanium Detector ArrayBB
ν
e
76
Ge
76
As
+
e
+
e
BBHPGeSemiconductor Gran Sasso, Italy
GRAND Giant Radio Array for Neutrino DetectionAGN, CR, ?
ν
τ

ν
τ
+ N →
τ
+ X
CCElectromagnetic waves caused by
τ
through extensive air showers in the atmosphere.
Radio 1017 eVChinaProposed
HALO Helium And Lead ObservatorySN
ν
e
,
ν
x

ν
e
+ 208
Pb

e
+ 209
Bi
*


ν
+ 208
Pb

ν
+ 208
Pb
*
CC, NC Lead (79  t ) and 3He High-Z≈10 MeV Creighton Mine, Ontario 2012–
HERONHelium Roton Observation of NeutrinosLS
ν
e
(mainly)

ν
e
+
e

ν
e
+
e
NC Superfluid He Rotational excitation1 MeVfuture
HOMESTAKE–CHLORINE Homestake chlorine experimentS
ν
e
37
Cl
+
ν
e
37
Ar
* +
e

37
Ar
* → 37
Cl
+
e+
+
ν
e
CC C2Cl4 (615  t ) Radiochemical 814 keV Homestake Mine, South Dakota 1967–1998
HOMESTAKE–IODINEHomestake iodine experimentS
ν
e

ν
+
e

ν
+
e


ν
e
+ 127
I
127
Xe
+
e
ES
CC
NaI in water Radiochemical 789 keV Homestake Mine, South Dakota future
Hyper-Kamiokande Hyper-KamiokandeS, ATM, SN, AC
ν
e
,
ν
μ


ν
e
,
ν
μ

ν
e
+
e

ν
e
+
e


ν
e
+
n

e
+
p
(+π, +X)

ν
μ
+
n

μ
+
p
(+π, +X)

ν
e
+
p

e+
+
n
(+π, +X)

ν
μ
+
p

μ+
+
n
(+π, +X)

ES, CC, (NC) water Cherenkov 200 MeV Tokai and Kamioka, Japan 2027-
(under construction)
ICARUS Imaging Cosmic And Rare Underground SignalS, ATM, GSN
ν
e
,
ν
μ
,
ν
τ

ν
+
e

ν
+
e
ES Liquid Ar Cherenkov 5.9 MeV Gran Sasso, Italy2010–
IceCube IceCube Neutrino DetectorATM, CR, AGN, ?
ν
e
,
ν
μ
,
ν
τ

ν
+ N →
ν
+ Cascade
,
ν
+ N → Charged lepton + Cascade
CC, NC Water ice (1 km3) Cherenkov ≈10 GeV South Pole, Antarctica 2006–
India-based Neutrino Observatory Iron Calorimeter Detector @ India-based Neutrino ObservatoryATM
ν
μ

ν
μ
+Fe→
μ
+X
CC (dominant), NC Magnetised iron (50 kton) RPC active detector elements ≈0.6 GeV Theni, Tamil Nadu, India2012– (lab construction); 2018– (detector operation)
JUNO Jiangmen Underground Neutrino ObservatoryR
ν
e

ν
e
+
p

e+
+
n
CC LAB (LOS) + PPO + Bis-MSB Scintillation Kaiping, China2014– (construction)
Kamiokande Kamioka Nucleon Decay ExperimentS, ATM
ν
e

ν
+
e

ν
+
e
ES Water (H2O) Cherenkov 7.5 MeV Kamioka, Japan1986–1995
KamLAND Kamioka Liquid Scintillator Antineutrino DetectorR
ν
e

ν
e
+
p

e+
+
n
CC LOS Scintillation 1.8 MeV Kamioka, Japan2002–
KM3NeT KM3 Neutrino TelescopeS, ATM, CR, SN, AGN, PUL
ν
μ
,
ν
e
,
ν
τ
Sea water (≈5 km3)Cherenkov Mediterranean Sea 2014–
LAGUNA Large Apparatus studying Grand Unification and Neutrino Astrophysicsfuture
LENSLow Energy Neutrino SpectroscopyLS
ν
e

ν
e
+ 115
In
115
Sn
+
ν
e
+ 2
γ
CC In-doped LOS Scintillation 120 keVproposed
Majorana Demonstrator The Majorana DemonstratorBB
ν
e
76
Ge
76
As
+
e
+
e
BBHPGeSemiconductor2039 keV Homestake Mine, South Dakota construction start 2012
MicroBooNE AC, SN
ν
e
,
ν
μ
ES, NC, CCLiquid ArgonTPCfew MeV Illinois, United States2014-
MINERvA Main Injector ExpeRiment for v-AAC
ν
μ
manyCC, NCSolid scintillator, targets of Liquid helium, Carbon, Water, Iron, Lead Scintillation≈0.5 GeV Illinois, United States2009–2019
MiniBooNE Mini Booster Neutrino ExperimentAC
ν
e
,
ν
μ

ν
e
+ 12
C

e
+ X
CC Mineral oil (1000 t) Cherenkov ≈100 keV Illinois, United States2002–
MINOS Main Injector Neutrino Oscillation SearchAC, ATM
ν
e
,
ν
μ

ν
μ
+nucleus →
μ
+X
CC, NCSolid scintillatorScintillation≈0.5 GeV Illinois and Minnesota, United States2005–2012
MINOS+ Upgraded electronics for MINOSAC, ATM
ν
e
,
ν
μ
,

ν
μ
+nucleus →
μ
+X
CC, NCSolid scintillatorScintillation≈0.5 GeV Illinois and Minnesota, United States2013–
MOONMolybdenum Observatory Of NeutrinosLS, LSN
ν
e

ν
e
+ 100
Mo
100
Tc
+
e
CC 100
Mo
(1  kt ) +  MoF6  (gas)
Scintillation 168 keV Washington, United States
NEMO-3 Neutrino Ettore Majorana ObservatoryBB
ν
e
100
Mo
100
Ru
+ 2
e

100
Se
100
Kr
+ 2
e

BBTracker + calorimeterHe+Ar wire chamber, plastic scintillators150 keV Modane Underground Laboratory, Fréjus Road Tunnel, France2003–2011
NEMO Telescope NEutrino Mediterranean Observatory Mediterranean Sea, Italy2007–
NEVOD Cherenkov water detector NEVODATM, CR
ν
μ

ν
μ
+
n

μ
+
p


ν
μ
+
p

μ+
+
n
CC Water (H2O) Cherenkov ≈2 GeV Moscow, Russia1993–
NEXTNeutrino Experiment with a Xenon Time Projection ChamberBB136
Xe
136
Ba
+ 2
e
BBGaseous Xenon Time projection chamber ≈10 keV Canfranc, Spain2016–
NOνA NuMI Off-Axis νe AppearanceAC
ν
e
,
ν
μ

ν
e
+nucleus →
e
+X
CCLiquid scintillatorScintillation≈0.1 GeV Illinois and Minnesota, United States2011–
OPERA Oscillation Project with Emulsion-tRacking ApparatusAC
ν
τ

ν
τ
+nucleus →
τ
+X
CCLead/EmulsionNuclear Emulsion≈1.0 GeV LNGS (Italy) and CERN 2008–
Auger Pierre Auger ObservatoryCRCherenkovArgentina
RENO Reactor Experiment for Neutrino OscillationR
ν
e

ν
e
+
p

e+
+
n
CC Gd-doped LOS Scintillation 1.8 MeVSouth Korea2011–
RNO-G Radio Neutrino Observatory GreenlandCR, AGN, ?
ν
e
,
ν
μ
,
ν
τ
CC, NCIn-IceRadio>10 PeV Summit Camp, Greenland 2021–
SAGE Soviet–American Gallium ExperimentLS
ν
e

ν
e
+ 71
Ga
71
Ge
+
e
CC Ga (metallic) Radiochemical 233.2 keV Baksan River valley, Russia1989–
SciBooNE SciBar (Scintillator Bar) Booster Neutrino ExperimentAC
ν
μ

ν
μ
+ 12
C

μ
+ X
CC, NC Plastic (CH,10 ton) Scintillation ≈100 keV Illinois, United States2007–2008
SNO Sudbury Neutrino ObservatoryS, ATM, GSN
ν
e
,
ν
μ
,
ν
τ

ν
e
+ 2
D
→ 2
p
+
e


ν
x + 2
D

ν
x +
n
+
p


ν
e
+
e

ν
e
+
e
CC
NC
ES
Heavy water (1  kt D2O) Cherenkov 3.5 MeV Creighton Mine, Ontario 1999–2006
SNO+ SNO with liquid scintillatorS,LS,R,T,

SN,LSN


ν
e

ν
x +
e

ν
x +
e


ν
e
+
p

e+
+
n

ES, BB linear alkylbenzene (LAB) + PPO Scintillation ≈≤1MeV Creighton Mine, Ontario 2014–
SoLidShort baseline Oscillation Search with Lithium-6 DetectorR
ν
e

ν
e
+
p

e+
+
n
CCplastic and anorganic scintillator Scintillation ≈2 MeVMol, Belgium2015-
STEREO STErile neutrino REactor Oscillation experimentR
ν
e

ν
e
+
p

e+
+
n
CCliquid organic scintillator loaded with Gd Scintillation ≈2 MeVGrenoble, France2013–
Super-K Super-KamiokandeS, ATM, GSN
ν
e
,
ν
μ
,
ν
τ

ν
e
+
e

ν
e
+
e


ν
e
+
n

e
+
p


ν
e
+
p

e+
+
n
ES
CC
CC
Water (H2O) Cherenkov 200 MeV Kamioka, Japan1996–
SuperNEMO SuperNEMOBB
ν
e
100
Se
100
Kr
+ 2
e

150
Nd
150
Sm
+ 2
e
BBTracker + calorimeterHe+Ar wire chamber, plastic scintillators150 keV Modane Underground Laboratory, Fréjus Road Tunnel, France2017–
TRIDENTTRopIcal DEep-sea Neutrino TelescopeS, ATM, CR, SN, AGN, PUL
ν
e
,
ν
μ
,
ν
τ
CC, NC Seawater (7.5 cubic km) Cherenkov Western Pacific Ocean Proposed

Pilot: 2026
Full operation: 2030

T2K Tokai to KamiokaAC
ν
e
,
ν
μ


ν
e
,
ν
μ

ν
e
+
n

e
+
p
(+π, +X)

ν
μ
+
n

μ
+
p
(+π, +X)


ν
e
+
p

e+
+
n
(+π, +X)

ν
μ
+
p

μ+
+
n
(+π, +X)

CC

(NC)

Water (H2O) Cherenkov
200 MeV
Tokai, Japan Kamioka, Japan 2011–
UNO Underground Nucleon decay and neutrino ObservatoryS, ATM, GSN, RSN
ν
e
,
ν
μ
,
ν
τ

ν
e
+
e

ν
e
+
e
ES Water (440  kt  H2O) Cherenkov Henderson Mine, Colorado abandoned

^[a] Accelerator neutrino (AC), Active galactic nuclei neutrino (AGN), Atmospheric neutrino (ATM), Collider neutrino (C), Cosmic ray neutrino (CR), Low-energy solar neutrino (LS), Low-energy supernova neutrino (LSN), Pulsar neutrino (PUL), Reactor neutrino (R), Solar neutrino (S), Supernova neutrino (SN), Terrestrial neutrino (T).
^[b] Double beta decay (BB), Charged current (CC), Elastic scattering (ES), Neutral current (NC).

See also

Related Research Articles

<span class="mw-page-title-main">Neutrino</span> Elementary particle with extremely low mass

A neutrino is a fermion that interacts only via the weak interaction and gravity. The neutrino is so named because it is electrically neutral and because its rest mass is so small (-ino) that it was long thought to be zero. The rest mass of the neutrino is much smaller than that of the other known elementary particles. The weak force has a very short range, the gravitational interaction is extremely weak due to the very small mass of the neutrino, and neutrinos do not participate in the electromagnetic interaction or the strong interaction. Thus, neutrinos typically pass through normal matter unimpeded and undetected.

<span class="mw-page-title-main">Super-Kamiokande</span> Japanese neutrino observatory

Super-Kamiokande is a neutrino observatory located under Mount Ikeno near the city of Hida, Gifu Prefecture, Japan. It is located 1,000 m (3,300 ft) underground in the Mozumi Mine in Hida's Kamioka area. The observatory was designed to detect high-energy neutrinos, to search for proton decay, study solar and atmospheric neutrinos, and keep watch for supernovae in the Milky Way Galaxy.

Weakly interacting massive particles (WIMPs) are hypothetical particles that are one of the proposed candidates for dark matter.

<span class="mw-page-title-main">Neutrino astronomy</span> Observing low-mass stellar particles

Neutrino astronomy is the branch of astronomy that observes astronomical objects with neutrino detectors in special observatories. Neutrinos are created as a result of certain types of radioactive decay, nuclear reactions such as those that take place in the Sun or high energy astrophysical phenomena, in nuclear reactors, or when cosmic rays hit atoms in the atmosphere. Neutrinos rarely interact with matter, meaning that it is unlikely for them to scatter along their trajectory, unlike photons. Therefore, neutrinos offer a unique opportunity to observe processes that are inaccessible to optical telescopes, such as reactions in the Sun's core. Neutrinos can also offer a very strong pointing direction compared to charged particle cosmic rays.

<span class="mw-page-title-main">Solar neutrino</span> Extremely light particle produced by the Sun

A solar neutrino is a neutrino originating from nuclear fusion in the Sun's core, and is the most common type of neutrino passing through any source observed on Earth at any particular moment. Neutrinos are elementary particles with extremely small rest mass and a neutral electric charge. They only interact with matter via the weak interaction and gravity, making their detection very difficult. This has led to the now-resolved solar neutrino problem. Much is now known about solar neutrinos, but the research in this field is ongoing.

Sterile neutrinos are hypothetical particles that interact only via gravity and not via any of the other fundamental interactions of the Standard Model. The term sterile neutrino is used to distinguish them from the known, ordinary active neutrinos in the Standard Model, which carry an isospin charge of ±+1/ 2  and engage in the weak interaction. The term typically refers to neutrinos with right-handed chirality, which may be inserted into the Standard Model. Particles that possess the quantum numbers of sterile neutrinos and masses great enough such that they do not interfere with the current theory of Big Bang nucleosynthesis are often called neutral heavy leptons (NHLs) or heavy neutral leptons (HNLs).

The cosmic neutrino background is the universe's background particle radiation composed of neutrinos. They are sometimes known as relic neutrinos.

The Mikheyev–Smirnov–Wolfenstein effect is a particle physics process which modifies neutrino oscillations in matter of varying density. The MSW effect is broadly analogous to the differential retardation of sound waves in density-variable media, however it also involves the propagation dynamics of three separate quantum fields which experience distortion.

Inverse beta decay, commonly abbreviated to IBD, is a nuclear reaction involving an electron antineutrino scattering off a proton, creating a positron and a neutron. This process is commonly used in the detection of electron antineutrinos in neutrino detectors, such as the first detection of antineutrinos in the Cowan–Reines neutrino experiment, or in neutrino experiments such as KamLAND and Borexino. It is an essential process to experiments involving low-energy neutrinos such as those studying neutrino oscillation, reactor neutrinos, sterile neutrinos, and geoneutrinos.

T2K is a particle physics experiment studying the oscillations of the accelerator neutrinos. The experiment is conducted in Japan by the international cooperation of about 500 physicists and engineers with over 60 research institutions from several countries from Europe, Asia and North America and it is a recognized CERN experiment (RE13). T2K collected data within its first phase of operation from 2010 till 2021. The second phase of data taking is expected to start in 2023 and last until commencement of the successor of T2K – the Hyper-Kamiokande experiment in 2027.

<span class="mw-page-title-main">Hyper-Kamiokande</span> Neutrino observatory in Japan

Hyper-Kamiokande is a neutrino observatory and experiment under construction, conducted in Japan by the collaboration of institutes from 21 countries from six continents. As a successor of the Super-Kamiokande (SK) and T2K experiments, it is designed to search for proton decay and detect neutrinos from natural sources such as the Earth, the atmosphere, the Sun and the cosmos, as well as to study neutrino oscillations of the man-made accelerator neutrino beam. The beginning of data-taking is planned for 2027.

<span class="mw-page-title-main">SNOLAB</span> Canadian neutrino laboratory

SNOLAB is a Canadian underground science laboratory specializing in neutrino and dark matter physics. Located 2 km below the surface in Vale's Creighton nickel mine near Sudbury, Ontario, SNOLAB is an expansion of the existing facilities constructed for the original Sudbury Neutrino Observatory (SNO) solar neutrino experiment.

<span class="mw-page-title-main">SNO+</span>

SNO+ is a physics experiment designed to search for neutrinoless double beta decay, with secondary measurements of proton–electron–proton (pep) solar neutrinos, geoneutrinos from radioactive decays in the Earth, and reactor neutrinos. It is under construction using the underground equipment already installed for the former Sudbury Neutrino Observatory (SNO) experiment at SNOLAB. It could also observe supernovae neutrinos if a supernova occurs in our galaxy.

<span class="mw-page-title-main">Type II supernova</span> Explosion of a star 8 to 45 times the mass of the Sun

A Type II supernova or SNII results from the rapid collapse and violent explosion of a massive star. A star must have at least eight times, but no more than 40 to 50 times, the mass of the Sun (M) to undergo this type of explosion. Type II supernovae are distinguished from other types of supernovae by the presence of hydrogen in their spectra. They are usually observed in the spiral arms of galaxies and in H II regions, but not in elliptical galaxies; those are generally composed of older, low-mass stars, with few of the young, very massive stars necessary to cause a supernova.

<span class="mw-page-title-main">Borexino</span> Neutrino physics experiment in Italy

Borexino is a deep underground particle physics experiment to study low energy (sub-MeV) solar neutrinos. The detector is the world's most radio-pure liquid scintillator calorimeter and is protected by 3,800 meters of water-equivalent depth. The scintillator is pseudocumene and PPO which is held in place by a thin nylon sphere. It is placed within a stainless steel sphere which holds the photomultiplier tubes (PMTs) used as signal detectors and is shielded by a water tank to protect it against external radiation. Outward pointing PMT's look for any outward facing light flashes to tag incoming cosmic muons that manage to penetrate the overburden of the mountain above. Neutrino energy can be determined through the number of photoelectrons measured in the PMT's. While the position can be determined by extrapolating the difference in arrival times of photons at PMT's throughout the chamber.

Large Apparatus studying Grand Unification and Neutrino Astrophysics or LAGUNA was a European project aimed to develop the next-generation, very large volume underground neutrino observatory. The detector was to be much bigger and more sensitive than any previous detector, and make new discoveries in the field of particle and astroparticle physics. The project involved 21 European institutions in 10 European countries, and brought together over 100 scientists.

The diffuse supernova neutrino background(DSNB) is a theoretical population of neutrinos (and anti-neutrinos) cumulatively originating from all core-collapse supernovae events throughout the history of the universe. Though it has not yet been directly detected, the DSNB is theorized to be isotropic and consists of neutrinos with typical energies on the scale of 107 eV. Current detection efforts are limited by the influence of background noise in the search for DSNB neutrinos and are therefore limited to placing limits on the parameters of the DSNB, namely the neutrino flux. Restrictions on these parameters have gotten more strict in recent years, but many researchers are looking to make direct observations in the near future with next generation detectors. The DSNB is not to be confused with the cosmic neutrino background (CNB), which is comprised by relic neutrinos that were produced during the Big Bang and have much lower energies (10−4 to 10−6 eV).

<span class="mw-page-title-main">David B. Cline</span> American particle physicist

]

Supernova neutrinos are weakly interactive elementary particles produced during a core-collapse supernova explosion. A massive star collapses at the end of its life, emitting on the order of 1058 neutrinos and antineutrinos in all lepton flavors. The luminosity of different neutrino and antineutrino species are roughly the same. They carry away about 99% of the gravitational energy of the dying star as a burst lasting tens of seconds. The typical supernova neutrino energies are 10 to 20 MeV. Supernovae are considered the strongest and most frequent source of cosmic neutrinos in the MeV energy range.

Direct detection of dark matter is the science of attempting to directly measure dark matter collisions in Earth-based experiments. Modern astrophysical measurements, such as from the Cosmic Microwave Background, strongly indicate that 85% of the matter content of the universe is unaccounted for. Although the existence of dark matter is widely believed, what form it takes or its precise properties has never been determined. There are three main avenues of research to detect dark matter: attempts to make dark matter in accelerators, indirect detection of dark matter annihilation, and direct detection of dark matter in terrestrial labs. The founding principle of direct dark matter detection is that since dark matter is known to exist in the local universe, as the Earth, Solar System, and the Milky Way Galaxy carve out a path through the universe they must intercept dark matter, regardless of what form it takes.

References

  1. Wildner, E.; Baussan, E.; Blennow, M.; Bogomilov, M.; Burgman, A.; Bouquerel, E.; Carlile, C.; Cederkäll, J.; Christiansen, P.; Cupial, P.; Danared, H. (2016). "The Opportunity Offered by the ESSnuSB Project to Exploit the Larger Leptonic CP Violation Signal at the Second Oscillation Maximum and the Requirements of This Project on the ESS Accelerator Complex". Advances in High Energy Physics. 2016: 1–16. arXiv: 1510.00493 . doi: 10.1155/2016/8640493 . ISSN   1687-7357.
  2. Dracos, Marcos (September 2018). "The European Spallation Source neutrino Super Beam". Journal of Physics: Conference Series. 1067: 042001. arXiv: 1803.10948 . doi:10.1088/1742-6596/1067/4/042001. ISSN   1742-6588. S2CID   4938289.