L. Ausborm

IceCube Search for Neutrino Emission from X-Ray Bright Seyfert Galaxies

Rasha U. Abbasi, M. Ackermann, J. Adams, Sanjib Kumar Agarwalla et autres

Abstract The recent IceCube detection of TeV neutrino emission from the nearby active galaxy NGC 1068 suggests that active galactic nuclei (AGNs) could make a sizable contribution to the diffuse flux of astrophysical neutrinos. The absence of TeV γ -rays from NGC …

Measurement of Atmospheric Neutrino Oscillation Parameters Using Convolutional Neural Networks with 9.3 Years of Data in IceCube DeepCore

M. Ackermann, J. Adams, Sanjib Kumar Agarwalla, J. A. Aguilar et autres

The DeepCore subdetector of the IceCube Neutrino Observatory provides access to neutrinos with energies above approximately 5 GeV. Data taken between 2012 and 2021 (3387 days) are utilized for an atmospheric ν_{μ} disappearance analysis that studied 150 257 neutrino-candidate events with reconstructed …

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Search for Neutrino Emission from Hard X-Ray AGN with IceCube

Rasha U. Abbasi, M. Ackermann, J. Adams, Sanjib Kumar Agarwalla et autres

Abstract Active galactic nuclei (AGN) are promising candidate sources of high-energy astrophysical neutrinos, since they provide environments rich in matter and photon targets where cosmic-ray interactions may lead to the production of gamma rays and neutrinos. We searched for high-energy neutrino emission …

Measurement of Atmospheric Neutrino Oscillation Parameters Using Convolutional Neural Networks with 9.3 Years of Data in IceCube DeepCore

R. Abbasi, M. Ackermann, C. Argüelles, N. Feigl et autres

Methods and stability tests associated with the sterile neutrino search using improved high-energy ν μ event reconstruction in IceCube

R. Abbasi, M. Ackermann, J. Adams, Sanjib Kumar Agarwalla et autres

We provide supporting details for the search for a 3 + 1 sterile neutrino using data collected over 10.7 years at the IceCube Neutrino Observatory. The analysis uses atmospheric muon-flavored neutrinos from 0.5 to 100 TeV that traverse Earth to reach the …

us, de, nz, be, dk, se, it, au, kr, ca, jp, bd (code pays fourni par la source)

Search for an eV-Scale Sterile Neutrino Using Improved High-Energy νμ Event Reconstruction in IceCube

R. Abbasi, M. Ackermann, J. Adams, Sanjib Kumar Agarwalla et autres

This Letter presents the result of a 3+1 sterile neutrino search using 10.7 yr of IceCube data. We analyze atmospheric muon neutrinos that traverse the Earth with energies ranging from 0.5 to 100 TeV, incorporating significant improvements in modeling neutrino flux and …

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Enhancing air-shower observations: Results from an IceCube Surface Array Prototype Station

Megha Venugopal, M. Ackermann, Jenni Adams, Sanjib Kumar Agarwalla et autres

The Surface Array Enhancement of the IceCube Neutrino Observatory is set to equip the existing surface cosmic-ray array of ice-Cherenkov detectors, IceTop, with radio antennas and scintillation detectors. This can lower the energy threshold of detection and increase the measurement accuracy of …

Exploration of mass splitting and muon/tau mixing parameters for an eV-scale sterile neutrino with IceCube

R. Abbasi, M. Ackermann, J. Adams, Sanjib Kumar Agarwalla et autres

We present the first three-parameter fit to a 3+1 sterile neutrino model using 7.634 years of data from the IceCube Neutrino Observatory on νμ+ν‾μ charged-current interactions in the energy range 500–9976 GeV. Our analysis is sensitive to the mass-squared splitting between the …

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Search for a light sterile neutrino with 7.5 years of IceCube DeepCore data

R. Abbasi, M. Ackermann, J. Adams, Sanjib Kumar Agarwalla et autres

We present a search for an eV-scale sterile neutrino using 7.5 years of data from the IceCube DeepCore detector. The analysis uses a sample of 21,914 events with energies between 5 and 150 GeV to search for sterile neutrinos through atmospheric muon …

us, de, nz, be, dk, se, it, au, kr, ca, jp, bd (code pays fourni par la source)

Probing the Connection between IceCube Neutrinos and MOJAVE AGN

Rasha U. Abbasi, M. Ackermann, J. Adams, Sanjib Kumar Agarwalla et autres

Abstract Active galactic nuclei (AGN) are prime candidate sources of the high-energy, astrophysical neutrinos detected by IceCube. This is demonstrated by the real-time multimessenger detection of the blazar TXS 0506+056 and the recent evidence of neutrino emission from NGC 1068 from a …

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Erratum: “Search for 10–1000 GeV Neutrinos from Gamma-Ray Bursts with IceCube” (2024, ApJ, 964, 126)

Rasha U. Abbasi, M. Ackermann, J. Adams, Sanjib Kumar Agarwalla et autres

Characterization of the astrophysical diffuse neutrino flux using starting track events in IceCube

M. Ackermann, J. Adams, Sanjib Kumar Agarwalla, J. A. Aguilar et autres

A measurement of the diffuse astrophysical neutrino spectrum is presented using IceCube data collected from 2011--2022 (10.3 years). We developed novel detection techniques to search for events with a contained vertex and exiting track induced by muon neutrinos undergoing a charged-current interaction. …

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