Radio detection of ultrahigh energy neutrinos in Antarctica

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Radio detection of ultra-high energy neutrinos in Antarctica Dave Besson, University of Kansas Nebraska

Radio detection of ultra-high energy neutrinos in Antarctica Dave Besson, University of Kansas Nebraska Colorado Kansas Oklahoma Missouri

конечная цель: соединиться спектра Заряженный, g-, и нейтрины измеренно на земле Cosmic Ray spectrum

конечная цель: соединиться спектра Заряженный, g-, и нейтрины измеренно на земле Cosmic Ray spectrum Atmospheric neutrinos Extragalactic flux sets scale for many accelerator models UHECRs

радио эхо обнаруживаемый сквозь 5. 6 km. Лда! Barwick, Besson, Gorham, Saltzberg, J. Glac.

радио эхо обнаруживаемый сквозь 5. 6 km. Лда! Barwick, Besson, Gorham, Saltzberg, J. Glac. 2005 Bedrock/2850 m

E(w) – Provorov/Butkevich (INR) vs. ZHS vs. AVZ

E(w) – Provorov/Butkevich (INR) vs. ZHS vs. AVZ

пучок электронов в SLAC - прямой наблюдение A. действие (~2 GHz) Sub-ns pulse, Ep-p~

пучок электронов в SLAC - прямой наблюдение A. действие (~2 GHz) Sub-ns pulse, Ep-p~ 200 V/m! моделирующее 2 GHz data • Measured pulse field strengths follow shower profile very closely • Charge excess also closely correlated to shower profile (EGS simulation)

Is it coherent Cherenkov radiation? Yes! 2. 2 GHz data: E S 100% polarized

Is it coherent Cherenkov radiation? Yes! 2. 2 GHz data: E S 100% polarized U Cherenkov radiation predictions: • 100% linearly polarized • plane of polarization aligned with plane containing Poynting vector S and particle/cascade velocity U измерение плоскость поляризация In proper plane Reflection from side wall • Observed: • 100% linearly polarized pulses • Plane of polarization exactly aligned with plane of S and U

Coherence and absolute field strength • No departures from coherence • field strength ~

Coherence and absolute field strength • No departures from coherence • field strength ~ Ng ~ shower energy • tested over a factor of ~20 in energy 2. 2 GHz all antennas • Frequency dependence also as expected for coherent Cherenkov: E ~ n dn up to ~2 GHz Full Coherence Cherenkov curve

RICE-AMANDA-SPASE (South Pole) SPASE RICE

RICE-AMANDA-SPASE (South Pole) SPASE RICE

Z-burst

Z-burst

Acoustic Detection of Ultra-High Energy Neutrinos ITEP Moscow I Proton beam measurements Acoustic signal

Acoustic Detection of Ultra-High Energy Neutrinos ITEP Moscow I Proton beam measurements Acoustic signal simulation V. I. Albul et al. Instr. and Exp. Techn. 44 (2001)327 Amplitude P Proton beam Amplitude beam: ITEP Moskau 125 Me. V, 200 Me. V p Ethr 1016 e. V target : H 2 O P [dyn] = 2. 3*10 -14 Eb 0. 78 detector: [e. V] hydrophone Time [mks] a -2004, June 18, 2004 Rolf Nahnhauer – DESY Zeuthen 25

a EAS ITEP Moscow II Sensitive hydrophone manufacturing Experiments at Lake Baikal An example

a EAS ITEP Moscow II Sensitive hydrophone manufacturing Experiments at Lake Baikal An example of detected sound (hydrophones H 1 H 4, G 7, G 8) piezo: -180 d. B Acoustic noise from Baikal water sin time/msec 3 “clusters” = 90º surface noise = 0º ? ? ? = -10º ? ? ? noise channeling below ice due to temperature gradient ? a -2004, June 18, 2004 Rolf Nahnhauer – DESY Zeuthen /rad 26

Antarctica Antarctica Size Antarctica is the fifthlargest continentAntarctica Antarctica Size Antarctica is the fifthlargest continent
Antarctica What is antarctica Antarctica is earths southernmostAntarctica What is antarctica Antarctica is earths southernmost
Antarctica The frozen continent Where is Antarctica AntarcticaAntarctica The frozen continent Where is Antarctica Antarctica
1 Acoustic Detection of UltraHigh Energy Neutrinos David1 Acoustic Detection of UltraHigh Energy Neutrinos David
Neutrinos as probes of ultrahigh energy astrophysical phenomenaNeutrinos as probes of ultrahigh energy astrophysical phenomena
Eliminating Nuclear Bombs with UltraHigh Energy Neutrinos HiroyukiEliminating Nuclear Bombs with UltraHigh Energy Neutrinos Hiroyuki
Ultrahigh Energy Cosmic Ray Nuclei and Neutrinos DanUltrahigh Energy Cosmic Ray Nuclei and Neutrinos Dan
Neutrinos as probes of ultrahigh energy astrophysical phenomenaNeutrinos as probes of ultrahigh energy astrophysical phenomena
Ultrahigh Energy Cosmic Ray Nuclei and Neutrinos DanUltrahigh Energy Cosmic Ray Nuclei and Neutrinos Dan
Radio 1 Radio Radio 2 Observations about RadioRadio 1 Radio Radio 2 Observations about Radio
RADIO CB radio radio samochodowe radio jako odbiornikRADIO CB radio radio samochodowe radio jako odbiornik
Antarctica Satellite view Click to advance Antarctica isAntarctica Satellite view Click to advance Antarctica is
Antarctica Satellite view Antarctica is Earths southernmost continentAntarctica Satellite view Antarctica is Earths southernmost continent
Antarctica 0 The Land at 70 South AntarcticaAntarctica 0 The Land at 70 South Antarctica
Antarctica 1 Introduction to a continent Antarctica pAntarctica 1 Introduction to a continent Antarctica p
Study Case Guaran Antarctica GUARAN ANTARCTICA uma marcaStudy Case Guaran Antarctica GUARAN ANTARCTICA uma marca
ANTARCTICA AUSTRALIA OCEANIA ANTARCTICA 5 th largest continentANTARCTICA AUSTRALIA OCEANIA ANTARCTICA 5 th largest continent
Antarctica Sateliet beeld Antarctica ligt op de ZuidpoolAntarctica Sateliet beeld Antarctica ligt op de Zuidpool
Antarctica Geography Antarctica Icy continent at the SouthAntarctica Geography Antarctica Icy continent at the South
Geography Antarctica How Cold is Antarctica and whyGeography Antarctica How Cold is Antarctica and why
Antarctica Satellite view Antarctica is Earths southernmost continentAntarctica Satellite view Antarctica is Earths southernmost continent
ANTARCTICA CGG 301 ANTARCTICA Different type of tourismANTARCTICA CGG 301 ANTARCTICA Different type of tourism
Antarctica Satellite View Zelf klicken Antarctica ligt opAntarctica Satellite View Zelf klicken Antarctica ligt op
Where Is Antarctica Antarctica Do you recognise anyWhere Is Antarctica Antarctica Do you recognise any