Results 31 to 40 of about 16,167 (173)

Measurement of the Multi-TeV Neutrino Interaction Cross-Section with IceCube Using Earth Absorption [PDF]

open access: yes, 2017
Neutrinos interact only very weakly, so they are extremely penetrating. The theoretical neutrino–nucleon interaction cross-section, however, increases with increasing neutrino energy, and neutrinos with energies above 40 teraelectronvolts (TeV) are ...
Andeen, Karen, The IceCube Collaboration
core   +1 more source

Cherenkov Telescope Array Observatory: Die Zukunft der Gammaastronomie

open access: yesPhysik in unserer Zeit, Volume 57, Issue 1, Page 10-18, January 2026.
Im Jahr 1989 hat das Wipple‐Observatorium die erste Quelle hochenergetischer Gammastrahlung entdeckt. 2002 waren dann sechs Quellen bekannt, 2024 schon mehr als 300. Und das ist immer noch lediglich die Spitze des Eisbergs in der jungen Geschichte der Gammaastronomie.
Daniela Hadasch, Daniel Mazin
wiley   +1 more source

The massive hot subdwarf binary LAMOST J065816.72+094343.1

open access: yesAstronomy & Astrophysics
Context. Massive short-period binaries involving hot subdwarf stars (sdO/Bs) are rare but very relevant to constraining pathways for binary star evolution.
Mattig F.   +11 more
doaj   +1 more source

Rectification of Bacterial Diffusion in Microfluidic Labyrinths

open access: yesFrontiers in Physics, 2019
In nature as well as in the context of infection and medical applications, bacteria often have to move in highly complex environments such as soil or tissues.
Ariane Weber   +8 more
doaj   +1 more source

Deterministic Nanofabrication of Quantum Dot ‐ Circular Bragg Grating Resonators with High Process Yield Using In Situ Electron Beam Lithography

open access: yesAdvanced Quantum Technologies, Volume 9, Issue 1, January 2026.
We demonstrate that deterministic in situ electron‐beam lithography enables precise integration of single quantum dots into compact circular Bragg grating resonators, achieving high extraction efficiency with only 3–4 rings. Across 95 devices, the approach delivers >$>$90% alignment yield and bright, narrow‐linewidth single‐photon emission, providing a
Avijit Barua   +7 more
wiley   +1 more source

X‐Ray Computed Tomography Quantifies Primary Phases and Reveals Crack Morphology in High‐Cycle Fatigue of Aluminum Alloy EN AW‐2618A

open access: yesAdvanced Engineering Materials, Volume 27, Issue 24, December 2025.
Primary phases and a fatigue crack are studied in a forged blank of an aluminum alloy using synchrotron and laboratory X‐ray computed tomography. To image the crack, the fatigue test is interrupted, and a static tensile load is applied to open the crack.
Jakob Schröder   +6 more
wiley   +1 more source

Hot subdwarf stars from the Hamburg Quasar Survey

open access: yesAstronomy & Astrophysics
Hot subluminous stars (subdwarf B&O; sdB, sdO) are evolved low mass stars originating from red giants that lost their envelope almost entirely. The multitude of observed phenomena imply that several pathways may form hot subdwarfs, most involving close ...
Heber U.   +6 more
doaj   +1 more source

Comparative heat and gas exchange measurements in the Heidelberg Aeolotron, a large annular wind-wave tank [PDF]

open access: yes, 2014
A comparative study of simultaneous heat and gas exchange measurements was performed in the large annular Heidelberg Air–Sea Interaction Facility, the Aeolotron, under homogeneous water surface conditions.
Jähne, Bernd   +2 more
core   +2 more sources

Nonlinear Transmission of Strong THz‐Electric Fields Through Thin Gold Films

open access: yesAdvanced Optical Materials, Volume 13, Issue 35, December 12, 2025.
Gold is is the prime metal for imaging THz radiation. This study demonstrates that the interaction of strong THz pulses with gold becomes nonlinear at certain peak THz‐electric field strengths. The strong fields change the electron density of states which contributing to the absorption of the propagating THz pulse.
Rokas Jutas   +6 more
wiley   +1 more source

Search for a heavy neutral particle decaying into an electron and a muon using 1 fb^(−1) of ATLAS data [PDF]

open access: yes, 2011
A search is presented for a high mass neutral particle that decays directly to the e^± μ^∓ final state. The data sample was recorded by the ATLAS detector in √s=7~TeV pp collisions at the LHC from March to June 2011 and corresponds to an integrated ...
Aad, G.   +4 more
core   +1 more source

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