SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Petrovic P) "

Sökning: WFRF:(Petrovic P)

Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Tidskriftsartikel (refereegranskat)
  •  
2.
  • Tidskriftsartikel (refereegranskat)
  •  
3.
  • Adrian-Martinez, S., et al. (författare)
  • A first search for coincident gravitational waves and high energy neutrinos using LIGO, Virgo and ANTARES data from 2007
  • 2013
  • Ingår i: Journal of Cosmology and Astroparticle Physics. - : IOP Publishing. - 1475-7516. ; :6
  • Tidskriftsartikel (refereegranskat)abstract
    • We present the results of the first search for gravitational wave bursts associated with high energy neutrinos. Together, these messengers could reveal new, hidden sources that are not observed by conventional photon astronomy, particularly at high energy. Our search uses neutrinos detected by the underwater neutrino telescope ANTARES in its 5 line configuration during the period January - September 2007, which coincided with the fifth and first science runs of LIGO and Virgo, respectively. The LIGO-Virgo data were analysed for candidate gravitational-wave signals coincident in time and direction with the neutrino events. No significant coincident events were observed. We place limits on the density of joint high energy neutrino - gravitational wave emission events in the local universe, and compare them with densities of merger and core-collapse events.
  •  
4.
  • Abbasi, R., et al. (författare)
  • Determination of the atmospheric neutrino flux and searches for new physics with AMANDA-II
  • 2009
  • Ingår i: Physical Review D. - 1550-7998 .- 1550-2368. ; 79, s. 102005-
  • Tidskriftsartikel (refereegranskat)abstract
    • The AMANDA-II detector, operating since 2000 in the deep ice at the geographic South Pole, has accumulated a large sample of atmospheric muon neutrinos in the 100 GeV to 10 TeV energy range. The zenith angle and energy distribution of these events can be used to search for various phenomenological signatures of quantum gravity in the neutrino sector, such as violation of Lorentz invariance or quantum decoherence. Analyzing a set of 5511 candidate neutrino events collected during 1387 days of livetime from 2000 to 2006, we find no evidence for such effects and set upper limits on violation of Lorentz invariance and quantum decoherence parameters using a maximum likelihood method. Given the absence of evidence for new flavor-changing physics, we use the same methodology to determine the conventional atmospheric muon neutrino flux above 100 GeV.
  •  
5.
  • Abbasi, R., et al. (författare)
  • Extending the Search for Neutrino Point Sources with IceCube above the Horizon
  • 2009
  • Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 103:22, s. Article ID: 221102-
  • Tidskriftsartikel (refereegranskat)abstract
    • Point source searches with the IceCube neutrino telescope have been restricted to one hemisphere, due to the exclusive selection of upward going events as a way of rejecting the atmospheric muon background. We show that the region above the horizon can be included by suppressing the background through energy-sensitive cuts. This improves the sensitivity above PeV energies, previously not accessible for declinations of more than a few degrees below the horizon due to the absorption of neutrinos in Earth. We present results based on data collected with 22 strings of IceCube, extending its field of view and energy reach for point source searches. No significant excess above the atmospheric background is observed in a sky scan and in tests of source candidates. Upper limits are reported, which for the first time cover point sources in the southern sky up to EeV energies.
  •  
6.
  • Abbasi, R, et al. (författare)
  • FIRST NEUTRINO POINT-SOURCE RESULTS FROM THE 22 STRING ICECUBE DETECTOR
  • 2009
  • Ingår i: Astrophysical Journal Letters. - 2041-8205. ; 701, s. L47-L51
  • Tidskriftsartikel (refereegranskat)abstract
    • We present new results of searches for neutrino point sources in the northern sky, using data recorded in 2007-2008 with 22 strings of the IceCube detector (approximately one-fourth of the planned total) and 275.7 days of live time. The final sample of 5114 neutrino candidate events agrees well with the expected background of atmospheric muon neutrinos and a small component of atmospheric muons. No evidence of a point source is found, with the most significant excess of events in the sky at 2.2 sigma after accounting for all trials. The average upper limit over the northern sky for point sources of muon-neutrinos with E-2 spectrum is E-2 Phi(v mu) < 1.4 x 10(-11) TeV cm(-2) s(-1), in the energy range from 3 TeV to 3 PeV, improving the previous best average upper limit by the AMANDA-II detector by a factor of 2.
  •  
7.
  • Abbasi, R., et al. (författare)
  • Limits on a Muon Flux from Neutralino Annihilations in the Sun with the IceCube 22-String Detector
  • 2009
  • Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 102:20, s. Article ID: 201302-
  • Tidskriftsartikel (refereegranskat)abstract
    • A search for muon neutrinos from neutralino annihilations in the Sun has been performed with the IceCube 22-string neutrino detector using data collected in 104.3 days of live time in 2007. No excess over the expected atmospheric background has been observed. Upper limits have been obtained on the annihilation rate of captured neutralinos in the Sun and converted to limits on the weakly interacting massive particle (WIMP) proton cross sections for WIMP masses in the range 250-5000 GeV. These results are the most stringent limits to date on neutralino annihilation in the Sun.
  •  
8.
  • Abbasi, R., et al. (författare)
  • SEARCH FOR HIGH-ENERGY MUON NEUTRINOS FROM THE "NAKED-EYE" GRB 080319B WITH THE IceCube NEUTRINO TELESCOPE
  • 2009
  • Ingår i: Astrophysical Journal. - 0004-637X .- 1538-4357. ; 701:2, s. 1721-1731
  • Tidskriftsartikel (refereegranskat)abstract
    • We report on a search with the IceCube detector for high-energy muon neutrinos from GRB 080319B, one of the brightest gamma-ray bursts (GRBs) ever observed. The fireball model predicts that a mean of 0.1 events should be detected by IceCube for a bulk Lorentz boost of the jet of 300. In both the direct on-time window of 66 s and an extended window of about 300 s around the GRB, no excess was found above background. The 90% CL upper limit on the number of track-like events from the GRB is 2.7, corresponding to a muon neutrino fluence limit of 9.5 x 10(-3) erg cm(-2) in the energy range between 120 TeV and 2.2 PeV, which contains 90% of the expected events.
  •  
9.
  • Abbasi, R., et al. (författare)
  • The IceCube data acquisition system : Signal capture, digitization, and timestamping
  • 2009
  • Ingår i: Nuclear Instruments and Methods in Physics Research Section A. - 0168-9002 .- 1872-9576. ; 601:3, s. 294-316
  • Tidskriftsartikel (refereegranskat)abstract
    • IceCube is a km-scale neutrino observatory under construction at the South Pole with sensors both in the deep ice (InIce) and on the surface (IceTop). The sensors, called Digital Optical Modules (DOMs). detect, digitize and timestamp the signals from optical Cherenkov-radiation photons. The DOM Main Board (MB) data acquisition subsystem is connected to the central DAQ in the IceCube Laboratory (ICL) by a single twisted copper wire-pair and transmits packetized data on demand. Time calibration is maintained throughout the array by regular transmission to the DOMs of precisely timed analog signals, synchronized to a central GPS-disciplined clock. The design goals and consequent features, functional capabilities, and initial performance of the DOM MB, and the operation of a combined array of DOMs as a system, are described here. Experience with the first InIce strings and the IceTop stations indicates that the system design and performance goals have been achieved. (c) 2009 Elsevier B.V. All rights reserved.
  •  
10.
  •  
Skapa referenser, mejla, bekava och länka
Typ av publikation
tidskriftsartikel (155)
konferensbidrag (14)
forskningsöversikt (1)
Typ av innehåll
refereegranskat (151)
övrigt vetenskapligt (19)
Författare/redaktör
Montaruli, T. (44)
Adams, J. (42)
Kappes, A. (42)
Karg, T. (42)
Bohm, C. (41)
Kolanoski, H. (41)
visa fler...
Sander, H. G. (41)
Landsman, H. (41)
Danninger, M. (41)
Kowalski, M. (41)
Ahlers, M. (41)
Bai, X. (41)
Bay, R. (41)
Becker, K. -H (41)
Berghaus, P. (41)
Berley, D. (41)
Bernardini, E. (41)
Blaufuss, E. (41)
Chirkin, D. (41)
Christy, B. (41)
Desiati, P. (41)
DeYoung, T. (41)
Fadiran, O. (41)
Filimonov, K. (41)
Finley, C. (41)
Gallagher, J. (41)
Gerhardt, L. (41)
Gladstone, L. (41)
Grant, D. (41)
Ha, C. (41)
Halzen, F. (41)
Hanson, K. (41)
Helbing, K. (41)
Hickford, S. (41)
Hoshina, K. (41)
Hultqvist, K. (41)
Karle, A. (41)
Kiryluk, J. (41)
Kohnen, G. (41)
Kuwabara, T. (41)
Labare, M. (41)
Madsen, J. (41)
Maruyama, R. (41)
Mase, K. (41)
Meagher, K. (41)
Morse, R. (41)
Nahnhauer, R. (41)
Olivas, A. (41)
Pieloth, D. (41)
Rawlins, K. (41)
visa färre...
Lärosäte
Karolinska Institutet (105)
Stockholms universitet (56)
Uppsala universitet (44)
Göteborgs universitet (15)
Linnéuniversitetet (15)
Lunds universitet (4)
visa fler...
Umeå universitet (3)
Örebro universitet (2)
Kungliga Tekniska Högskolan (1)
Mälardalens högskola (1)
Jönköping University (1)
Mittuniversitetet (1)
VTI - Statens väg- och transportforskningsinstitut (1)
Sveriges Lantbruksuniversitet (1)
visa färre...
Språk
Engelska (170)
Forskningsämne (UKÄ/SCB)
Naturvetenskap (57)
Medicin och hälsovetenskap (35)
Samhällsvetenskap (9)
Teknik (1)
Lantbruksvetenskap (1)

År

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy