memphys non-oscillation physics
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MEMPHYSMEMPHYSnon-oscillation physicsnon-oscillation physics
MEMPHYSMEMPHYSnon-oscillation physicsnon-oscillation physics
Alessandra TonazzoAlessandra Tonazzo
APC et Université Paris 7APC et Université Paris 7
Alessandra TonazzoAlessandra Tonazzo
APC et Université Paris 7APC et Université Paris 7
NOW 2006 - Conca Specchiulla 9-16/09/06NOW 2006 - Conca Specchiulla 9-16/09/06NOW 2006 - Conca Specchiulla 9-16/09/06NOW 2006 - Conca Specchiulla 9-16/09/06
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The MEMPHYS detectorThe MEMPHYS detectorThe MEMPHYS detectorThe MEMPHYS detector
Megaton Mass PHYSics @FréjusMegaton Mass PHYSics @Fréjus Water Cherenkov Water Cherenkov (“cheap and stable”)(“cheap and stable”) Total fiducial mass: 440 ktTotal fiducial mass: 440 kt Baseline: Baseline:
3 Cylindrical modules 65X65 m3 Cylindrical modules 65X65 m Size limited by light attenuation Size limited by light attenuation
length (λ~80m) and pressure on length (λ~80m) and pressure on PMTsPMTs
Readout: 12” PMTs, 30% geom. Readout: 12” PMTs, 30% geom. cover cover (#PEs =40%cov. with 20” PMTs)(#PEs =40%cov. with 20” PMTs)
PMT R&D + detailed study on PMT R&D + detailed study on excavation existing & ongoingexcavation existing & ongoing
Megaton Mass PHYSics @FréjusMegaton Mass PHYSics @Fréjus Water Cherenkov Water Cherenkov (“cheap and stable”)(“cheap and stable”) Total fiducial mass: 440 ktTotal fiducial mass: 440 kt Baseline: Baseline:
3 Cylindrical modules 65X65 m3 Cylindrical modules 65X65 m Size limited by light attenuation Size limited by light attenuation
length (λ~80m) and pressure on length (λ~80m) and pressure on PMTsPMTs
Readout: 12” PMTs, 30% geom. Readout: 12” PMTs, 30% geom. cover cover (#PEs =40%cov. with 20” PMTs)(#PEs =40%cov. with 20” PMTs)
PMT R&D + detailed study on PMT R&D + detailed study on excavation existing & ongoingexcavation existing & ongoing
65m
60m
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Modane, France
Bardonecchia, Italy
Freju
s Tu
nn
el
Laboratoire Souterrain de Modane
4800 m.w.e.
http://www.apc.univ-paris7.fr/APC_CS/Experiences/MEMPHYS/http://www.apc.univ-paris7.fr/APC_CS/Experiences/MEMPHYS/
arXiv: hep-ex/0607026arXiv: hep-ex/0607026
Contacts: J.E.Campagne and M.MezzettoContacts: J.E.Campagne and M.Mezzetto
[see talk by [see talk by S.Katsanevas]S.Katsanevas]
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Physics goals (=outline of my talk)Physics goals (=outline of my talk)Physics goals (=outline of my talk)Physics goals (=outline of my talk)
SuperNovae core-collapseSuperNovae core-collapse
Early SN triggerEarly SN trigger
Diffuse SuperNovae NeutrinosDiffuse SuperNovae Neutrinos
Astrophysical sources of neutrinos Astrophysical sources of neutrinos
Proton decayProton decay
Oscillation measurements with Oscillation measurements with beams beams
[see talk by T.Schwetz][see talk by T.Schwetz]
SuperNovae core-collapseSuperNovae core-collapse
Early SN triggerEarly SN trigger
Diffuse SuperNovae NeutrinosDiffuse SuperNovae Neutrinos
Astrophysical sources of neutrinos Astrophysical sources of neutrinos
Proton decayProton decay
Oscillation measurements with Oscillation measurements with beams beams
[see talk by T.Schwetz][see talk by T.Schwetz]
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SN neutrinos @ detectorSN neutrinos @ detectorSN neutrinos @ detectorSN neutrinos @ detector
emission
Flavor conversionShock w
ave
EARTH
Core Collapse
[slide “stolen” from A.Mirizzi]
Event rate spectra
: from simulations of SN explosions
P : from oscillations + simulations (density profile)
: (well) known
: under control
( ) ( )( )Pα α β β βφ ν ν ν σ ν ε→∫[see talk by Cardall][see talk by Cardall]
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SN neutrinos SN neutrinos SN neutrinos SN neutrinos Neutronization burst
E~1051 erg t~25 ms Accretion + K-H cooling
E~1053 erg t~10 s 99% of total explosion energy
Neutronization burst E~1051 erg t~25 ms
Accretion + K-H cooling E~1053 erg t~10 s 99% of total explosion energy
€
⇒ e,μ ,τ ,ν e,μ ,τ
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⇒ e
Fogli et al., hep-ph/0412046Raffelt et al., astro-ph/0303226
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Propagation to Earth: Matter effects Pee(12) Level-crossing probability
PH(E, V(x,t), m2,13) Survival prob. p= Pee*PH
Propagation to Earth: Matter effects Pee(12) Level-crossing probability
PH(E, V(x,t), m2,13) Survival prob. p= Pee*PH
“Sensitivity to θ13 one order of magnitude better than planned terrrestrial experiments” [see for ex. Lunardini-Smirnov hep-ph/0302033]
€
e
€
e
[see talk by Cardall][see talk by Cardall]
Hierarchy of interaction strength
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Detection of SN neutrinosDetection of SN neutrinosDetection of SN neutrinosDetection of SN neutrinos Inverse-beta (89%) Inverse-beta (89%)
Large statistics in detectors with lots of free pLarge statistics in detectors with lots of free p Good determination of Good determination of time and energy time and energy Option: add Gd to tag neutron from delayed-γ Option: add Gd to tag neutron from delayed-γ
Elastic scattering (~3%)Elastic scattering (~3%)
PointingPointing
NC on Oxygen (8%)NC on Oxygen (8%)
Inverse-beta (89%) Inverse-beta (89%)
Large statistics in detectors with lots of free pLarge statistics in detectors with lots of free p Good determination of Good determination of time and energy time and energy Option: add Gd to tag neutron from delayed-γ Option: add Gd to tag neutron from delayed-γ
Elastic scattering (~3%)Elastic scattering (~3%)
PointingPointing
NC on Oxygen (8%)NC on Oxygen (8%)
€
e + p→ e+ + n
€
e +O→ X + e−€
(−)
e,μ ,τ + e− → ν(−)
e,μ ,τ + e−
[see talk by Vagins][see talk by Vagins]
Fogli et al., hep-ph/0412046
e,x
e-
ne+
€
e
€
~ 250 N
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SN @ MEMPHYSSN @ MEMPHYSSN @ MEMPHYSSN @ MEMPHYS
Evidence up to ~1MpcEvidence up to ~1Mpc
Galactic SN: Huge statistics Galactic SN: Huge statistics we can do we can do spectral analysesspectral analyses in timein time in energyin energy in flavour compositionin flavour composition
Access toAccess to SN explosion mechanism:SN explosion mechanism:
shock waves, neutronization burstshock waves, neutronization burst Neutrino production parameters:Neutrino production parameters:
rate, spectrarate, spectra Neutrino propertiesNeutrino properties
(a partial overview in the following)(a partial overview in the following)
Evidence up to ~1MpcEvidence up to ~1Mpc
Galactic SN: Huge statistics Galactic SN: Huge statistics we can do we can do spectral analysesspectral analyses in timein time in energyin energy in flavour compositionin flavour composition
Access toAccess to SN explosion mechanism:SN explosion mechanism:
shock waves, neutronization burstshock waves, neutronization burst Neutrino production parameters:Neutrino production parameters:
rate, spectrarate, spectra Neutrino propertiesNeutrino properties
(a partial overview in the following)(a partial overview in the following)
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Fogli et al., hep-ph/0412046
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Extracting the astrophysical parametersExtracting the astrophysical parameters
Learning about black-hole formationLearning about black-hole formation Abrupt cut-off of neutrino Abrupt cut-off of neutrino
flux visible if a black-hole flux visible if a black-hole forms in the middle of a forms in the middle of a SN explosion SN explosion
Extracting the astrophysical parametersExtracting the astrophysical parameters
Learning about black-hole formationLearning about black-hole formation Abrupt cut-off of neutrino Abrupt cut-off of neutrino
flux visible if a black-hole flux visible if a black-hole forms in the middle of a forms in the middle of a SN explosion SN explosion
Minakata et al.,hep-ph/0112160
Just an example (“old” paper) to get a feeling of the sensitivity w.r.t. smaller detectors
SN spectral analyses (1)SN spectral analyses (1)SN spectral analyses (1)SN spectral analyses (1)
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Learning about the shock waveLearning about the shock wave Learning about the shock waveLearning about the shock wave
Crossing of resonances can induce time-dependent matter effects in neutrino oscillations
Shock-wave effects on survival probabilities (PH) depend on 13.
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ve ↔ NHν e ↔ IH
Schirato and Fuller, astro-ph/0205390Fogli et al., hep-ph/0304056
m2atm,13
m2sol,sol
self-interactions ?Duan et al., 0606616Raffelt et al., 0608050
SN spectral analyses (2)SN spectral analyses (2)SN spectral analyses (2)SN spectral analyses (2)
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SN spectral analyses (2)SN spectral analyses (2)SN spectral analyses (2)SN spectral analyses (2) Learning about the shock waveLearning about the shock wave Learning about the shock waveLearning about the shock wave
Time-dips are Energy-dependent:Compare bins of “low” and “high” E
Fogli et al., hep-ph/0412046
Tomas et al., astro-ph/0407132
“Double-dip” in <Ee>“Double-peak” in <E2
e>/<Ee>2
vs time
For NH, some information can be gathered from time-spectrum of e+O events
Forward shock Forward+Reverse shock
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IH shockIH static
NH
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SN spectral analyses (2’)SN spectral analyses (2’)SN spectral analyses (2’)SN spectral analyses (2’) Stochastic density fluctuations behind the shock frontStochastic density fluctuations behind the shock front
can have significant damping effects on the transition pattern can have significant damping effects on the transition pattern and modify the observed spectrum and modify the observed spectrum
Stochastic density fluctuations behind the shock frontStochastic density fluctuations behind the shock frontcan have significant damping effects on the transition pattern can have significant damping effects on the transition pattern and modify the observed spectrum and modify the observed spectrum Fogli et al., hep-ph/0603033
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= fractional (random) variations of average potential
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Earth matter effectsEarth matter effects Earth matter effectsEarth matter effects
SN spectral analyses (3)SN spectral analyses (3)SN spectral analyses (3)SN spectral analyses (3)
Modulations of energy spectrum of and/or
Observable with a single detector in Fourier-transform of y~1/E
In water-Cherenkov, due to poor energy resolution, need >60k events: OK @Mton
Dighe et al., hep-ph/0311172
For Earth effect not seen Inverted Hierarchy + large θ13
Earth effect seen Degeneracy: NH or IH+small θ13
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e + p→ e+ + n
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e
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e
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Neutronization burst Neutronization burst Neutronization burst Neutronization burst
SN spectral analyses (4)SN spectral analyses (4)SN spectral analyses (4)SN spectral analyses (4)
Kachelrieβ et al., astro-ph/0412082Signal:
Bkg: •mainlyrejected by angle and E cuts + Gd n-tag•ES of other flavours €
e + e− →ν e + e−
€
e + p→ e+ + n
Observation of time peak depends on oscillation scenario
• Burst / no-burst break degeneracy A/C if θ13 unknown
• Measurement of SN distance D~1/N1/2 @10kpc within 5%
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SN triggerSN triggerSN triggerSN trigger
Coincidence of Coincidence of two neutrinostwo neutrinos in in the same detector within ~10secthe same detector within ~10sec Bkg <0.7 ev/yrBkg <0.7 ev/yr Rate > 0.15/yrRate > 0.15/yr
Identify SN without optical Identify SN without optical confirmation confirmation (= anticipate by few hrs)(= anticipate by few hrs)
Detect SN heavily obscured by Detect SN heavily obscured by dust or optically darkdust or optically dark
Neutrino-OpticalNeutrino-Optical coincidence coincidence
improve knowledge of start time improve knowledge of start time of core collapse from ~1day of core collapse from ~1day (optical) to ~10s(optical) to ~10s
Coincidence of Coincidence of two neutrinostwo neutrinos in in the same detector within ~10secthe same detector within ~10sec Bkg <0.7 ev/yrBkg <0.7 ev/yr Rate > 0.15/yrRate > 0.15/yr
Identify SN without optical Identify SN without optical confirmation confirmation (= anticipate by few hrs)(= anticipate by few hrs)
Detect SN heavily obscured by Detect SN heavily obscured by dust or optically darkdust or optically dark
Neutrino-OpticalNeutrino-Optical coincidence coincidence
improve knowledge of start time improve knowledge of start time of core collapse from ~1day of core collapse from ~1day (optical) to ~10s(optical) to ~10s Ando et al.,
astro-ph/0503321
@SK
@Mton
RSN
Detection of SN from galaxies up to ~10Mpc
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We don’t need to wait and hope to be lucky…We don’t need to wait and hope to be lucky…We don’t need to wait and hope to be lucky…We don’t need to wait and hope to be lucky…
Diffuse SN neutrinosDiffuse SN neutrinosDiffuse SN neutrinosDiffuse SN neutrinos
Lunardini, astro-ph/0509233
[see talk by C.Lunardini][see talk by C.Lunardini](thanks for these slides!)(thanks for these slides!)
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Small signalsignal over very large bkg:
• Decay e from “invisible ” generated by CC interaction of -atm and with E<Cherenkov threshold
• atmospheric e
• Reactor (E<~10 MeV)
Small signalsignal over very large bkg:
• Decay e from “invisible ” generated by CC interaction of -atm and with E<Cherenkov threshold
• atmospheric e
• Reactor (E<~10 MeV)
Diffuse SN Diffuse SN ’s @H’s @H22O detectorsO detectorsDiffuse SN Diffuse SN ’s @H’s @H22O detectorsO detectors
Malek et al. [SK Coll.],hep-ex/0209028
Can be reduced with Gd(reject non- anti-e )
€
Φ(Eν >19.3MeV ) <1.2cm−2s−1
@90%C.L.
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Diffuse SN Diffuse SN ’s @ MEMPHYS’s @ MEMPHYSDiffuse SN Diffuse SN ’s @ MEMPHYS’s @ MEMPHYS
We WILL see them We WILL see them
in few yearsin few years
We WILL see them We WILL see them
in few yearsin few years
Direct measurement of Direct measurement of emission parametersemission parameters
Direct measurement of Direct measurement of emission parametersemission parameters
Fogli et al., hep-ph/0412046
7-60 events in 4 yrs: “most conservative” estimate
by C.Lunardini
What can we learn ? Yuksel et al., astro-ph/0509297
5y SK+Gd=1y MEMPHYS+Gd
astro-ph/0509233
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Diffuse SN Diffuse SN ’s @ MEMPHYS’s @ MEMPHYSDiffuse SN Diffuse SN ’s @ MEMPHYS’s @ MEMPHYS Decays of DSNDecays of DSN
modifications of spectrummodifications of spectrum
Decays of DSNDecays of DSNmodifications of spectrummodifications of spectrum
Constraints on Dark Constraints on Dark Energy parametersEnergy parameters
Constraints on Dark Constraints on Dark Energy parametersEnergy parameters
Mirizzi et al., hep-ph/0405136
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Hall et al., hep-ph/0607109
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dΦ
dE= f (Ωm,ΩΛ)
ω = −1↔ Ωm = 0.3,ΩΛ = 0.7ω = 0 ↔ Ωm =1,ΩΛ = 0
+estimate of SN rate from future SN surveys
10 ywith Gd
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Neutrino astrophysicsNeutrino astrophysicsNeutrino astrophysicsNeutrino astrophysics Low-E Low-E ’s from GRB’s from GRB
accompanying UHE-accompanying UHE-’s and ’s and optical emission seen in otheroptical emission seen in otherexperimentsexperiments
““GRB GRB background” detectable background” detectable in few yearsin few years
’’s from Black-Hole formations from Black-Hole formationdeath of stars with M>40Mdeath of stars with M>40Msunsun
’’s from interaction of s from interaction of ’s “from below”’s “from below” Point-sources, such as AGNsPoint-sources, such as AGNs WIMPs annihilating in Earth, Sun or Galaxy WIMPs annihilating in Earth, Sun or Galaxy
[cfr SK analysis: hep-ex/0404025][cfr SK analysis: hep-ex/0404025] High-E High-E ’s from GRBs’s from GRBs
Low-E Low-E ’s from GRB’s from GRB accompanying UHE-accompanying UHE-’s and ’s and
optical emission seen in otheroptical emission seen in otherexperimentsexperiments
““GRB GRB background” detectable background” detectable in few yearsin few years
’’s from Black-Hole formations from Black-Hole formationdeath of stars with M>40Mdeath of stars with M>40Msunsun
’’s from interaction of s from interaction of ’s “from below”’s “from below” Point-sources, such as AGNsPoint-sources, such as AGNs WIMPs annihilating in Earth, Sun or Galaxy WIMPs annihilating in Earth, Sun or Galaxy
[cfr SK analysis: hep-ex/0404025][cfr SK analysis: hep-ex/0404025] High-E High-E ’s from GRBs’s from GRBs
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Nagataki et al., astro-ph/0203481
Sumiyoshi et al., astro-ph/0608509
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Proton decayProton decayProton decayProton decay Forbidden in SM Forbidden in SM Non-SUSY GUTs Non-SUSY GUTs (dim-6 operators)(dim-6 operators)
Favours p Favours p e e++ 00
Predictions: Predictions: pp~10~103434-10-103636 yrs yrs Predictions depend only on fermion mixingPredictions depend only on fermion mixing
SUSY GUTs SUSY GUTs (dim-4 and dim-5 operators)(dim-4 and dim-5 operators) Favours p Favours p K K++ nu-bar nu-bar Predictions: Predictions: pp~3x10~3x103333-3x10-3x103434 yrs yrs Predictions depend on SUSY particle spectrum, Higgs sector and Predictions depend on SUSY particle spectrum, Higgs sector and
fermion masses (note interplay with direct searches @LHC)fermion masses (note interplay with direct searches @LHC)
Current limits by SuperKamiokande:Current limits by SuperKamiokande: p p K K++ nu-bar nu-bar pp>2.3x10>2.3x103333yy p p e e++ 00 pp>1.6x10>1.6x103333yy
Complementarity of the two main decay channelsComplementarity of the two main decay channels No dedicated study done for MEMPHYS: rely on UNO simulation results No dedicated study done for MEMPHYS: rely on UNO simulation results
(see UNO whitepaper)(see UNO whitepaper)
Forbidden in SM Forbidden in SM Non-SUSY GUTs Non-SUSY GUTs (dim-6 operators)(dim-6 operators)
Favours p Favours p e e++ 00
Predictions: Predictions: pp~10~103434-10-103636 yrs yrs Predictions depend only on fermion mixingPredictions depend only on fermion mixing
SUSY GUTs SUSY GUTs (dim-4 and dim-5 operators)(dim-4 and dim-5 operators) Favours p Favours p K K++ nu-bar nu-bar Predictions: Predictions: pp~3x10~3x103333-3x10-3x103434 yrs yrs Predictions depend on SUSY particle spectrum, Higgs sector and Predictions depend on SUSY particle spectrum, Higgs sector and
fermion masses (note interplay with direct searches @LHC)fermion masses (note interplay with direct searches @LHC)
Current limits by SuperKamiokande:Current limits by SuperKamiokande: p p K K++ nu-bar nu-bar pp>2.3x10>2.3x103333yy p p e e++ 00 pp>1.6x10>1.6x103333yy
Complementarity of the two main decay channelsComplementarity of the two main decay channels No dedicated study done for MEMPHYS: rely on UNO simulation results No dedicated study done for MEMPHYS: rely on UNO simulation results
(see UNO whitepaper)(see UNO whitepaper)
Complete review:Nath and Perez, hep-ph/0601023
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Proton decayProton decayProton decayProton decay Search for p Search for p e e++ π π00
Main bkg: Main bkg: Ask: 2 or 3 “e-like” rings, Ask: 2 or 3 “e-like” rings,
PPtottot<P<PFermiFermi, M, Minvinv~M~Mpp
=> Eff. ~44% => Eff. ~44% MEMPHYS coverage 30% with MEMPHYS coverage 30% with
12”PMTs is equivalent to SK 12”PMTs is equivalent to SK coverage 40% with 20”PMTs in coverage 40% with 20”PMTs in terms of #PEterms of #PE
Search for p Search for p e e++ π π00
Main bkg: Main bkg: Ask: 2 or 3 “e-like” rings, Ask: 2 or 3 “e-like” rings,
PPtottot<P<PFermiFermi, M, Minvinv~M~Mpp
=> Eff. ~44% => Eff. ~44% MEMPHYS coverage 30% with MEMPHYS coverage 30% with
12”PMTs is equivalent to SK 12”PMTs is equivalent to SK coverage 40% with 20”PMTs in coverage 40% with 20”PMTs in terms of #PEterms of #PE
€
atm -ν e + N → e+ + N '+π 0
From UNO whitepaper
MEMPHYSXXX
XXXMEMPHYS
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H2O is best for this channel
NOW06 15/09/06NOW06 15/09/06NOW06 15/09/06NOW06 15/09/06 A.Tonazzo - MEMPHYS: non-oscillation physicsA.Tonazzo - MEMPHYS: non-oscillation physicsA.Tonazzo - MEMPHYS: non-oscillation physicsA.Tonazzo - MEMPHYS: non-oscillation physics 22222222
Proton decayProton decayProton decayProton decay Search for p Search for p K K++ + anti- + anti-
K below Ch. Threshold :K below Ch. Threshold :
infer from decays infer from decays 90% of K 90% of K decay at restdecay at rest
K decay channels:K decay channels: K K monoenergetic monoenergetic + 6.3 MeV prompt-+ 6.3 MeV prompt- from capture from capture
K K ++00 with with
Search for p Search for p K K++ + anti- + anti- K below Ch. Threshold :K below Ch. Threshold :
infer from decays infer from decays 90% of K 90% of K decay at restdecay at rest
K decay channels:K decay channels: K K monoenergetic monoenergetic + 6.3 MeV prompt-+ 6.3 MeV prompt- from capture from capture
K K ++00 with with
QuickTime™ and aTIFF (LZW) decompressor
are needed to see this picture.
H2O is not as good as LAr, LScint for this channel
NOW06 15/09/06NOW06 15/09/06NOW06 15/09/06NOW06 15/09/06 A.Tonazzo - MEMPHYS: non-oscillation physicsA.Tonazzo - MEMPHYS: non-oscillation physicsA.Tonazzo - MEMPHYS: non-oscillation physicsA.Tonazzo - MEMPHYS: non-oscillation physics 23232323
Summary and outlookSummary and outlookSummary and outlookSummary and outlook
MEMPHYS - Megaton Mass PHYSics @ FréjusMEMPHYS - Megaton Mass PHYSics @ Fréjus Supernova ExplosionSupernova Explosion
Evidence up to 1 MpcEvidence up to 1 Mpc Spectral analyses Spectral analyses information on explosion mechanism, information on explosion mechanism,
emission and propagationemission and propagation
Diffuse Supernova NeutrinosDiffuse Supernova Neutrinos Evidence within few yearsEvidence within few years Information on Information on emission parameters and more emission parameters and more
Early SN triggerEarly SN trigger Neutrino astrophysicsNeutrino astrophysics Proton decay:Proton decay:
Optimal detector for p Optimal detector for p e e++ π π00
Important synergies with LAr, LiqScint Important synergies with LAr, LiqScint LAGUNA LAGUNA
MEMPHYS - Megaton Mass PHYSics @ FréjusMEMPHYS - Megaton Mass PHYSics @ Fréjus Supernova ExplosionSupernova Explosion
Evidence up to 1 MpcEvidence up to 1 Mpc Spectral analyses Spectral analyses information on explosion mechanism, information on explosion mechanism,
emission and propagationemission and propagation
Diffuse Supernova NeutrinosDiffuse Supernova Neutrinos Evidence within few yearsEvidence within few years Information on Information on emission parameters and more emission parameters and more
Early SN triggerEarly SN trigger Neutrino astrophysicsNeutrino astrophysics Proton decay:Proton decay:
Optimal detector for p Optimal detector for p e e++ π π00
Important synergies with LAr, LiqScint Important synergies with LAr, LiqScint LAGUNA LAGUNA
BACKUPBACKUPBACKUPBACKUP
NOW06 15/09/06NOW06 15/09/06NOW06 15/09/06NOW06 15/09/06 A.Tonazzo - MEMPHYS: non-oscillation physicsA.Tonazzo - MEMPHYS: non-oscillation physicsA.Tonazzo - MEMPHYS: non-oscillation physicsA.Tonazzo - MEMPHYS: non-oscillation physics 25252525
SN spectral analyses (2)SN spectral analyses (2)SN spectral analyses (2)SN spectral analyses (2) Learning about the shock wave: Normal HierarchyLearning about the shock wave: Normal Hierarchy Learning about the shock wave: Normal HierarchyLearning about the shock wave: Normal Hierarchy
QuickTime™ and aTIFF (LZW) decompressor
are needed to see this picture.
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SN187A by LunardiniSN187A by Lunardini SN187A by LunardiniSN187A by Lunardini
QuickTime™ and aTIFF (LZW) decompressor
are needed to see this picture.
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SN1987ASN1987ASN1987ASN1987A
Other analyses:Jegerlehner et al., PRD 54 (1996) 1194Lunardini, astro-ph/0509233 (5-par fit)
Yukserl et al., astro-ph 0509297
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SN spectral analyses (2)SN spectral analyses (2)SN spectral analyses (2)SN spectral analyses (2) Learning about the shock waveLearning about the shock wave Learning about the shock waveLearning about the shock wave
Time-dips are Energy-dependent:Compare bins of “low” and “high” E
Fogli et al., hep-ph/0412046
Tomas et al., astro-ph/0407132
“Double-dip” in <Ee>“Double-peak” in <E2
e>/<Ee>2
vs time
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