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The assessment of neutrino absolute mass scale is still a crucial challenge in today particle physics and cosmology. Beta or electron capture spectrum end-point study is currently the only experimental method which can provide a model…

We demonstrate Faraday spectroscopy with high duty cycle and sampling rate using atoms confined to a blue-detuned optical trap. Our trap consists of a crossed pair of high-charge-number hollow laser beams, which forms a dark, box-like…

Quantum Physics · Physics 2009-11-13 Matthew L. Terraciano , Mark Bashkansky , Fredrik Fatemi

A system of automated computerized Langmuir probe measurements is used in order to determine the plasma parameters in a plasma reactor constructed for cleaning of metallic artifacts by RF discharge. A compensated probe insures the…

Plasma Physics · Physics 2014-06-24 M. El Shaer , A. S. Mohamed , A. Massoud , M. Mobasher , M. Wuttmann

HOLMES is a new experiment aiming at directly measuring the neutrino mass with a sensitivity below 2 eV. HOLMES will perform a calorimetric measurement of the energy released in the decay of $^{163}$Ho. The calorimetric measurement…

Complex field measurements are increasingly becoming the standard for state-of-the-art astronomical instrumentation. Complex field measurements have been used to characterize a suite of ground, airborne, and space-based heterodyne receiver…

Instrumentation and Methods for Astrophysics · Physics 2018-09-25 Kristina K. Davis , Willem Jellema , Stephen J. C. Yates , Christopher E. Groppi , Jochem J. A. Baselmans , Andrey M. Baryshev

Absorption line systems detected in quasar spectra can be used to compare the value of the fine-structure constant, {\alpha}, measured today on Earth with its value in distant galaxies. In recent years, some evidence has emerged of small…

Next-generation gravitational wave observatories are expected to use cryogenically cooled, pendulum-suspended 200 kg test mass mirrors from a crystalline material such as crystalline silicon. During operation of the observatories, these…

We present the results of a direct measurement of the cosmic-ray helium spectrum with the CALET instrument in operation on the International Space Station since 2015. The observation period covered by this analysis spans from October 13,…

We present a method for simultaneously measuring the phase fronts of three or more RF fields using thermal Rydberg atoms. We demonstrate this method using an all-dielectric atomic electrometer acting in a heterodyne configuration to detect…

Atomic Physics · Physics 2025-04-21 Alexander Gill , Aaron Buikema , Stephen Sirisky , Hannah Clevenson

In this work, Rossi-alpha measurements were simultaneously performed with a $^3$He-based detection system and an organic scintillator-based detection system. The assembly is 15 kg of plutonium (93 wt$\%$ $^{239}$Pu) reflected by copper and…

(abridged) Quasar absorption lines provide a precise test of the assumed constancy of the fundamental constants of physics. We have investigated potential changes in the fine-structure constant, alpha, and the proton-to-electron mass ratio,…

Cosmology and Nongalactic Astrophysics · Physics 2012-03-01 Julian A. King

An overview is presented of the measurements of the top quark mass performed by the ATLAS experiment at the LHC with an integrated luminosity varying between 35 pb$^{-1}$ and 4.7 fb$^{-1}$. Different techniques are used to measure the top…

High Energy Physics - Experiment · Physics 2013-02-20 Giuseppe Salamanna

Eruptive phenomena such as plasmoid ejections or jets are an important feature of solar activity with the potential for improving our understanding of the dynamics of the solar atmosphere. Such ejections are often thought to be signatures…

Solar and Stellar Astrophysics · Physics 2017-05-22 M. Shimojo , H. S. Hudson , S. M. White , T. S. Bastian , K. Iwai

We have measured the gamma-ray emission spectrum of the Moon using the data collected by the Large Area Telescope onboard the Fermi satellite during its first 7 years of operation, in the energy range from 30 MeV up to a few GeV. We have…

High Energy Astrophysical Phenomena · Physics 2016-04-14 M. Ackermann , M. Ajello , A. Albert , W. B. Atwood , L. Baldini , G. Barbiellini , D. Bastieri , R. Bellazzini , E. Bissaldi , R. D. Blandford , R. Bonino , E. Bottacini , J. Bregeon , P. Bruel , R. Buehler , G. A. Caliandro , R. A. Cameron , M. Caragiulo , P. A. Caraveo , E. Cavazzuti , C. Cecchi , A. Chekhtman , J. Chiang , G. Chiaro , S. Ciprini , R. Claus , J. Cohen-Tanugi , F. Costanza , A. Cuoco , S. Cutini , F. D'Ammando , A. de Angelis , F. de Palma , R. Desiante , S. W. Digel , L. Di Venere , P. S. Drell , C. Favuzzi , S. J. Fegan , W. B. Focke , A. Franckowiak , S. Funk , P. Fusco , F. Gargano , D. Gasparrini , N. Giglietto , F. Giordano , M. Giroletti , T. Glanzman , G. Godfrey , I. A. Grenier , J. E. Grove , S. Guiriec , A. K. Harding , J. W. Hewitt , D. Horan , X. Hou , G. Iafrate , G. Johannesson , T. Kamae , M. Kuss , S. Larsson , L. Latronico , J. Li , L. Li , F. Longo , F. Loparco , M. N. Lovellette , P. Lubrano , J. Magill , S. Maldera , A. Manfreda , M. Mayer , M. N. Mazziotta , P. F. Michelson , W. Mitthumsiri , T. Mizuno , M. E. Monzani , A. Morselli , S. Murgia , E. Nuss , N. Omodei , E. Orlando , J. F. Ormes , D. Paneque , J. S. Perkins , M. Pesce-Rollins , V. Petrosian , F. Piron , G. Pivato , S. Rainò , R. Rando , M. Razzano , A. Reimer , O. Reimer , T. Reposeur , C. Sgrò , E. J. Siskind , F. Spada , G. Spandre , P. Spinelli , H. Takahashi , J. B. Thayer , D. J. Thompson , L. Tibaldo , D. F. Torres , G. Tosti , E. Troja , G. Vianello , B. L. Winer , K. S. Wood , M. Yassine , F. Cerutti , A. Ferrari , P. R. Sala

In optical detection of ultrasound, resonators with high Q-factors are often used to maximize sensitivity. However, in order to perform parallel interrogation, conventional interferometric techniques require an overlap between the resonator…

Optics · Physics 2019-01-27 Yoav Hazan , Amir Rosenthal

We report the first mass measurement of the proton-halo candidate $^{22}$Al performed with the LEBIT facility's 9.4~T Penning trap mass spectrometer at FRIB. This measurement completes the mass information for the lightest remaining…

We investigate deuterium atoms adsorbed on the surface of liquid helium in equilibrium with a vapor of atoms of the same species. These atoms are studied by a sensitive optical method based on spectroscopy at a wavelength of 122 nm,…

Condensed Matter · Physics 2009-10-31 A. P. Mosk , M. W. Reynolds , T. W. Hijmans

Next generation tritium decay experiments to determine the absolute neutrino mass require high-precision measurements of $\beta$-decay electron energies close to the kinematic end point. To achieve this, the development of high phase-space…

We used the Atacama Large Millimeter/submillimeter Array (ALMA), covering a nearly contiguous 289 GHz frequency range between 84.2 and 373.2 GHz, to image the continuum and spectral line emission at 1.6\arcsec ($\sim 28$ pc) resolution down…