3-11 July 2007
Merida, Mexico
Mexico/General timezone
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HE 2.3

Place

Location: Merida, Mexico
Room: Yucatan II+III+IV (Fiesta Americana)
Date: from 5 Jul 08:29 to 7 Jul 11:57

Timetable | Contribution List

Displaying 21 contributions out of 21
Type: Oral Session: HE 2.3
Track: HE.2.3
Current status and results of the experiment on recording neutrino bursts are presented. The observation livetime (since 1980) is 22.6 years. The upper bound of collapse frequency in our Galaxy is 0.10 $y^{-1}$ (90% CL).
Presented by Dr. Yuriy NOVOSELTSEV on 5/7/2007 at 17:46
Type: Oral Session: HE 2.3
Track: HE.2.3
The ANtarctic Impulsive Transient Antenna (ANITA) searches for ultra high energy neutrinos interacting in the antarctic ice cap. It is a long duration balloon experiment composed of an array of broadband dual-polarized horn antennas that had its first science flight over Antarctica in December 2006 through January 2007. ANITA relies upon the Askaryan effect, in which a particle shower in a d ... More
Presented by Kimberly J. PALLADINO on 7/7/2007 at 16:45
Type: Oral Session: HE 2.3
Track: HE.2.3
Air-fluorescence detectors such as the High Resolution Fly's Eye (HiRes) instrument are very sensitive to upward-going, Earth-skimming ultrahigh energy electron-neutrino-induced showers. This is due to the relatively large interaction cross sections of these high-energy neutrinos and the Landau-Pomeranchuk-Migdal (LPM) effect, which is responsible for a significant decrease in the cross secti ... More
Presented by Dr. Lauren SCOTT on 5/7/2007 at 17:24
Type: Oral Session: HE 2.3
Track: HE.2.3
Many astrophysical models predict a diffuse flux of high-energy neutrinos from active galactic nuclei and other extra-galactic sources. At muon energies above 1 TeV, the upward-going muon flux induced by neutrinos from active galactic nuclei is expected to exceed the flux due to atmospheric neutrinos. We have performed a search for this astrophysical neutrino flux by looking for upward-going m ... More
Presented by Molly SWANSON on 5/7/2007 at 17:35
Type: Oral Session: HE 2.3
Track: HE.2.3
The AMANDA-II data collected during the period 2000-03 have been analysed in a search for a diffuse flux of high-energy extra-terrestrial neutrinos from the sum of all sources in the universe. With no excess of events seen, an upper limit on an E-2 flux of E2 Phi < 8.8 x 10-8 GeV cm-2 s-1 sr-1 was obtained. The astrophysical implications of this bound and of others obtained for specific mo ... More
Presented by Gary HILL, Jessica HODGES, Kotoyo HOSHINA on 5/7/2007 at 14:35
Type: Oral Session: HE 2.3
Track: HE.2.3
The ANTARES telescope is being built in the Mediterranean Sea. The detector consists of a 3D array of photomultipliers (PMTs) that detects the Cherenkov light induced by the muons produced in neutrino interactions. Since the neutrino fluxes from point-like sources are expected to be small, it is of the utmost importance to take advantage of the ANTARES accurate pointing power (angular resolut ... More
Presented by Mr. Juan Antonio AGUILAR SÁNCHEZ on 5/7/2007 at 13:53
Type: Oral Session: HE 2.3
Track: HE.2.3
A method is presented for the identification of high-energy neutrinos from gamma ray bursts by means of a large-scale neutrino telescope. The procedure makes use of a time profile stacking technique of observed neutrino induced signals in correlation with satellite observations. By selecting a rather wide time window, a possible difference between the arrival times of the gamma and neutrino ... More
Presented by Dr. Nick VAN EIJNDHOVEN on 5/7/2007 at 18:08
Type: Oral Session: HE 2.3
Track: HE.2.3
The Pierre Auger Observatory has the capability of detecting ultra-high energy neutrinos by searching for very inclined showers with a significant electromagnetic component. In this work we discuss the discrimination power of the instrument for ultra-high energy neutrinos. Based on the data collected since January 2004 an upper limit to the diffuse flux of neutrinos at EeV energies is presen ... More
Presented by Dr. Oscar BLANCH-BIGAS on 5/7/2007 at 17:13
Type: Oral Session: HE 2.3
Track: HE.2.3
We perform a study of the ultra high energy neutrino detection performances of a km^3 Neutrino Telescope sitting at the three proposed sites for ANTARES, NEMO and NESTOR in the Mediterranean sea. We focus on the effect of the underwater surface profile on the total amount of yearly expected tau and mu crossing the fiducial volume in the limit of full detection efficiency and energy resol ... More
Presented by Dr. Ofelia PISANTI on 5/7/2007 at 15:30
Type: Oral Session: HE 2.3
Track: HE.2.3
AMANDA is a high volume neutrino telescope designed to search in the down-going direction for muons from astrophysical muon-neutrinos. It is possible to extend the range of AMANDA to search for neutrinos with extremely high energies. The atmospheric neutrino flux becomes negligible above 10^15 eV, so this value serves as rough energy threshold for this search. Above 10^16 eV the Earth is ess ... More
Presented by Lisa GERHARDT on 5/7/2007 at 16:30
Type: Oral Session: HE 2.3
Track: HE.2.3
The construction of the IceCube Neutrino Observatory began during the austral summer of 2004-05, and is expected to continue through 2011. During 2006, nine of the projected 80 strings were already deployed and taking data, making IceCube an operational neutrino observatory while still at about 10% of its final size. We present the first results of a point-source search based on the analysis o ... More
Presented by Dr. Chad FINLEY on 5/7/2007 at 14:47
Type: Oral Session: HE 2.3
Track: HE.2.3
Current point source searches mostly apply only the direction of the reconstructed event; furthermore, they reduce available information by grouping events into sky bins. In this analysis we use a search based on maximum likelihood techniques, utilizing both event direction and energy, to enhance our ability to detect point sources. Especially, use of energy information allows us to fit the sp ... More
Presented by Mr. James BRAUN on 5/7/2007 at 16:42
Type: Oral Session: HE 2.3
Track: HE.2.3
The Antarctic Muon And Neutrino Detector Array (AMANDA) is a Cherenkov detector deployed in the Antarctic ice cap at the South Pole. The charged-current interaction of high-energy electron or tau neutrinos, as well as neutral-current interactions of neutrinos of any flavor, can produce isolated electromagnetic or hadronic cascades. There are several advantages associated with the cascade chan ... More
Presented by Oxana TARASOVA on 5/7/2007 at 16:18
Type: Oral Session: HE 2.3
Track: HE.2.3
A search for supernova neutrino bursts was conducted using data from the Super-Kamiokande (SK) detector. SK detector is an imaging water Cherenkov detector containing 50,000 tons of pure water with 22,500 tons of fiducial volume, and it is sensitive to core-collapse supernova explosions via observation of their neutrino emissions. The expected number of events comprising such a burst is ... More
Presented by Mr. Motoyasu IKEDA on 5/7/2007 at 15:54
Type: Oral Session: HE 2.3
Track: HE.2.3
Supernova relic neutrinos (SRN) is diffuse supernova neutrino background from all past supernova. No experiments have succeeded in detecting SRN yet. Measurement of SRN enable us investigate history of past supernova. For example, the flux of SRN shows star formation rate and supernova rate in galaxies. A search for SRN was conducted using Super-Kamiokande (SK) data. SK is a large water ... More
Presented by Takashi IIDA on 5/7/2007 at 16:06
Type: Oral Session: HE 2.3
Track: HE.2.3
The Large Volume Detector LVD (Gran Sasso National Laboratory, Italy) is a neutrino scintillator observatory monitoring the Galaxy since 1992, searching for low energy neutrino bursts from gravitational stellar collapses. We present the status of the detector that reached its final active mass of 1000 t in 2001. No candidates have been detected over all the fifteen years of observation: the ... More
Presented by - THE LVD COLLABORATION on 5/7/2007 at 18:19
Type: Oral Session: HE 2.3
Track: HE.2.3
We use CORSIKA+Herwig simulation code to produce ultra-high energy neutrino interactions in the atmosphere. Our aim is to reproduce extensive air showers originated by extragalactic tau-neutrinos. As we have no code available which can simulate the tau-neutrino as primary particle in the atmosphere, we use muon-neutrino as primaries. For charged current tau-neutrino interactions in the atmosph ... More
Presented by Dr. Celio ADREGA DE MOURA on 5/7/2007 at 17:57
Type: Oral Session: HE 2.3
Track: HE.2.3
ANTARES is a large volume, deep-sea, neutrino telescope currently under construction off La Seyne-sur-mer, France. Neutrino telescopes aims at detecting neutrinos as a new probe for a sky study at energies greater than 1 TeV. The detection principle relies on the observation, using photomultipliers, of the Cherenkov light emitted by charged leptons induced by neutrino interactions in the s ... More
Presented by Dr. Antoine KOUCHNER on 5/7/2007 at 13:29
Type: Oral Session: HE 2.3
Track: HE.2.3
The ANTARES Collaboration is deploying a large neutrino detector at a depth of 2500 m in the Mediterranean Sea, 40 km off shore from La Seyne-sur-Mer in South France. The construction of this 12-line detector with 75 phototubes per line will be completed by the end of 2007. Data taking has begun since April 2005 with an instrumentation line also equipped with optical modules. The first 5 detec ... More
Presented by Dr. Stephanie ESCOFFIER on 5/7/2007 at 13:41
Type: Oral Session: HE 2.3
Track: HE.2.3
The NEMO (NEutrino Mediterranean Observatory) Project aims at the construction of a km3-scale neutrino telescope in the Mediterranean Sea. After extensive deep-sea surveys performed in several sites in the Mediterranean, an optimal installation site for the apparatus has been identified at a depth of 3500 m, about 80 km off Capo Passero, at the SE corner of Sicily, Italy. In this talk, we wil ... More
Presented by Prof. MAURO TAIUTI on 5/7/2007 at 15:42
Type: Oral Session: HE 2.3
Track: HE.2.3
Extremely high energy (EHE) cosmic neutrinos (E>10^8GeV) are considered to carry important information about particle acceleration mechanisms in the universe and the origin of EHE cosmic-ray. The IceCube experiment is uniquely designed to detect highly energetic astrophysical neutrino events using Antarctic ice as a natural Cherenkov radiator to overcome difficulties associated in the search ... More
Presented by Dr. Aya ISHIHARA on 5/7/2007 at 17:02
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