A. Aminaei
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View article: New limit on dark photon kinetic mixing in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>0.2</mml:mn><mml:mo>–</mml:mo><mml:mrow><mml:mn>1.2</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi mathvariant="normal">μ</mml:mi><mml:mi>eV</mml:mi></mml:mrow></mml:mrow></mml:math> mass range from the Dark E-field Radio experiment
New limit on dark photon kinetic mixing in the mass range from the Dark E-field Radio experiment Open
We report new limits on the kinetic mixing strength of the dark photon spanning the mass range 0.21−1.24 μeV corresponding to a frequency span of 50–300 MHz. The Dark E-field Radio experiment is a wideband search for dark photon dark matt…
View article: New Limit on Dark Photon Kinetic Mixing in the 0.2-1.2 $\boldsymbolμ$eV Mass Range From the Dark E-Field Radio Experiment
New Limit on Dark Photon Kinetic Mixing in the 0.2-1.2 $\boldsymbolμ$eV Mass Range From the Dark E-Field Radio Experiment Open
We report new limits on the kinetic mixing strength of the dark photon spanning the mass range 0.21 -- 1.24 $μ$eV corresponding to a frequency span of 50 -- 300 MHz. The Dark E-Field Radio experiment is a wide-band search for dark photon d…
View article: Simulation and Measurement of Out-of-Band Resonances for the FDM Readout of a TES Bolometer
Simulation and Measurement of Out-of-Band Resonances for the FDM Readout of a TES Bolometer Open
With applications in cosmology, infrared astronomy and CMB survey, frequency-division multiplexing (FDM) proved to be a viable readout for transition-edge sensors (TES). We investigate the occurrence of out-of-band resonances (OBR) which c…
View article: Detection of ultra high energy cosmic rays and neutrinos with lunar orbital radio telescope
Detection of ultra high energy cosmic rays and neutrinos with lunar orbital radio telescope Open
Particle cascades induced by ultra-high-energy (UHE) cosmic rays and neutrinos impacting on the lunar regolith usually radiate Cherenkov radio emissions due to the presence of excess negative charge, which is known as Askaryan effect. Seve…
View article: Detection of Ultra High Energy Cosmic Rays and Neutrinos with Lunar Orbital Radio Telescope
Detection of Ultra High Energy Cosmic Rays and Neutrinos with Lunar Orbital Radio Telescope Open
Particle cascades induced by ultra-high-energy (UHE) cosmic rays and neutrinos impacting on the lunar regolith usually radiate Cherenkov radio emissions due to the presence of excess negative charge, which is known as Askaryan effect. Seve…
View article: Frequency division multiplexing readout of a transition edge sensor bolometer array with microstrip-type electrical bias lines
Frequency division multiplexing readout of a transition edge sensor bolometer array with microstrip-type electrical bias lines Open
We demonstrate multiplexed readout of 43 transition edge sensor (TES) bolometers operating at 90 mK using a frequency division multiplexing (FDM) readout chain with bias frequencies ranging from 1 to 3.5 MHz and a typical frequency spacing…
View article: Design concept of a low-terahertz imaging radar
Design concept of a low-terahertz imaging radar Open
Terahertz (THz) imaging proved to be an efficient and powerful nondestructive\nexamination (NDE) method for inspection of materials and detection of defects.\nHere, we present the development of a Low-Terahertz Imaging Radar(L-TIR) which\n…
View article: Frequency division multiplexing readout of 60 low-noise transition-edge sensor bolometers
Frequency division multiplexing readout of 60 low-noise transition-edge sensor bolometers Open
We demonstrate multiplexing readout of 60 transition edge sensor (TES) bolometers operating at 90 mK using a frequency division multiplexing readout chain with bias frequencies ranging from 1 to 3.5 MHz and with a typical frequency spacing…
View article: Electrical cross talk of a frequency division multiplexing readout for a transition edge sensor bolometer array
Electrical cross talk of a frequency division multiplexing readout for a transition edge sensor bolometer array Open
We have characterized and mapped the electrical cross talk (ECT) of a frequency division multiplexing (FDM) system with a transition edge sensor (TES) bolometer array, which is intended for space applications. By adding a small modulation …
View article: Noise Measurements of a Low-Noise Amplifier in the FDM Readout System for SAFARI
Noise Measurements of a Low-Noise Amplifier in the FDM Readout System for SAFARI Open
View article: Prospects of probing the radio emission of lunar UHECRv events
Prospects of probing the radio emission of lunar UHECRv events Open
Radio detection of Ultra High Energetic Cosmic Rays and Neutrinos (UHECRv) which hit the Moon has been investigated in recent years. In preparation for near-future lunar science missions, we discuss technical requirements for radio experim…
View article: The Pierre Auger Observatory: Contributions to the 35th International Cosmic Ray Conference (ICRC 2017)
The Pierre Auger Observatory: Contributions to the 35th International Cosmic Ray Conference (ICRC 2017) Open
Contributions of the Pierre Auger Collaboration to the 35th International\nCosmic Ray Conference (ICRC 2017), 12-20 July 2017, Bexco, Busan, Korea.\n
View article: Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger Observatory
Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger Observatory Open
The Auger Engineering Radio Array (AERA) is part of the Pierre Auger Observatory and is used to detect the radio emission of cosmic-ray air showers. These observations are compared to the data of the surface detector stations of the Observ…
View article: Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy
Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy Open
We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy scale of the Pierre Auger Observatory, we obtain a radiation energy of 15.8±0.7(s…
View article: Measurement of the cosmic ray spectrum above 4 × 10<sup>18</sup>eV using inclined events detected with the Pierre Auger Observatory
Measurement of the cosmic ray spectrum above 4 × 10<sup>18</sup>eV using inclined events detected with the Pierre Auger Observatory Open
A measurement of the cosmic-ray spectrum for energies exceeding\n$4{\\times}10^{18}$ eV is presented, which is based on the analysis of showers\nwith zenith angles greater than $60^{\\circ}$ detected with the Pierre Auger\nObservatory betw…
View article: Search for patterns by combining cosmic-ray energy and arrival directions at the Pierre Auger Observatory
Search for patterns by combining cosmic-ray energy and arrival directions at the Pierre Auger Observatory Open
View article: Improved limit to the diffuse flux of ultrahigh energy neutrinos from the Pierre Auger Observatory
Improved limit to the diffuse flux of ultrahigh energy neutrinos from the Pierre Auger Observatory Open
© Published by the American Physical Society 2015. Neutrinos in the cosmic ray flux with energies near 1 EeV and above are detectable with the Surface Detector array (SD) of the Pierre Auger Observatory. We report here on searches through …
View article: SEARCHES FOR ANISOTROPIES IN THE ARRIVAL DIRECTIONS OF THE HIGHEST ENERGY COSMIC RAYS DETECTED BY THE PIERRE AUGER OBSERVATORY
SEARCHES FOR ANISOTROPIES IN THE ARRIVAL DIRECTIONS OF THE HIGHEST ENERGY COSMIC RAYS DETECTED BY THE PIERRE AUGER OBSERVATORY Open
We analyze the distribution of arrival directions of ultra-high-energy cosmic rays recorded at the Pierre Auger Observatory in 10 years of operation. The data set, about three times larger than that used in earlier studies, includes arriva…
View article: LARGE SCALE DISTRIBUTION OF ULTRA HIGH ENERGY COSMIC RAYS DETECTED AT THE PIERRE AUGER OBSERVATORY WITH ZENITH ANGLES UP TO 80°
LARGE SCALE DISTRIBUTION OF ULTRA HIGH ENERGY COSMIC RAYS DETECTED AT THE PIERRE AUGER OBSERVATORY WITH ZENITH ANGLES UP TO 80° Open
We present the results of an analysis of the large angular scale distribution of the arrival directions of cosmic rays with energy above 4 EeV detected at the Pierre Auger Observatory including for the first time events with zenith angle b…
View article: Muons in air showers at the Pierre Auger Observatory: Mean number in highly inclined events
Muons in air showers at the Pierre Auger Observatory: Mean number in highly inclined events Open
We present the first hybrid measurement of the average muon number in air showers at ultrahigh energies, initiated by cosmic rays with zenith angles between 62° and 80°. The measurement is based on 174 hybrid events recorded simultaneously…