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Now that the Fermilab muon $g-2$ experiment has released the results of its Run-1 data, which agrees with the results of the Brookhaven experiment, one can examine the potential of simple extensions to explain the combined $4.2\sigma$…

高能物理 - 唯象学 · 物理学 2021-10-15 Peter Athron , Csaba Balázs , Douglas Jacob , Wojciech Kotlarski , Dominik Stöckinger , Hyejung Stöckinger-Kim

We use 7 years of electron and positron Fermi-LAT data to search for a possible excess in the direction of the Sun in the energy range from 42 GeV to 2 TeV. In the absence of a positive signal we derive flux upper limits which we use to…

高能天体物理现象 · 物理学 2020-01-15 A. Cuoco , P. De La Torre Luque , F. Gargano , M. Gustafsson , F. Loparco , M. N. Mazziotta , D. Serini

The E989 Muon $g-2$ Experiment at Fermilab aims to measure the muon magnetic anomaly, $a_\mu$, to an unprecedented precision of 140 parts per billion (ppb), representing a four-fold improvement over the current best measurement, achieved at…

高能物理 - 实验 · 物理学 2019-05-15 A. T. Fienberg

We examine the rest-frame far-infrared emission from powerful radio sources with 1.4GHz luminosity densities of 25<=log(L_1.4/WHz^-1)<=26.5 in the extragalactic Spitzer First Look Survey field. We combine Herschel/SPIRE flux densities with…

宇宙学与河外天体物理 · 物理学 2015-05-20 N. Seymour , M. Symeonidis , M. Page , the HerMES Consortium

Aiming to fill a crucial gap in our observational knowledge of the early Universe, experiments around the world continue to attempt to verify the claimed detection of the redshifted 21-cm signal from Cosmic Dawn by the EDGES experiment.…

宇宙学与河外天体物理 · 物理学 2020-09-15 B. McKinley , C. M. Trott , M. Sokolowski , R. B. Wayth , A. Sutinjo , N. Patra , J. Nambissan T. , D. C. X. Ung

A proposal to search for direct {\mu}-->e conversion at Fermilab requires slow, resonant extraction of an intense proton beam. Large space charge forces will present challenges, partly due to the substantial betatron tune spread. The main…

加速器物理 · 物理学 2012-09-27 V. Nagaslaev , J. Amundson , J. Johnstone , C. S. Park , S. Werkema

We report the first study of the micro-SQUID response of a molecular system to electromagnetic radiation. The advantages of our micro-SQUID technique in respect to pulsed electron paramagnetic resonance (EPR) techniques consist in the…

介观与纳米尺度物理 · 物理学 2007-05-23 W. Wernsdorfer , A. Mueller , D. Mailly , B. Barbara

The performance of scintillator counters with embedded wavelength-shifting fibers has been measured in the Fermilab Meson Test Beam Facility using 120 GeV protons. The counters were extruded with a titanium dioxide surface coating and two…

The Mu2e experiment at Fermilab is being designed to study the coherent neutrino-less conversion of a negative muon into an electron in the field of a nucleus. This process has an extremely low probability in the Standard Model, and its…

加速器物理 · 物理学 2016-12-30 V. Pronskikh , D. Glenzinski , K. Knoepfel , N. Mokhov , R. Tschirhart

We explore the physics potential of the NuMI beamline with a detector located 10 km off-axis at a distant site (810 km). We study the sensitivity to $\sin^2 2 \theta_{13}$ and to the CP-violating parameter $\sin \delta$ as well as the…

高能物理 - 唯象学 · 物理学 2008-11-26 Olga Mena , Stephen Parke

We present -- and make publicly available -- accurate and precise photometric redshifts in the ACS footprint from the COSMOS field for objects with $i_{\mathrm{AB}}\leq 23$. The redshifts are computed using a combination of narrow band…

For supersymmetric extensions of the Standard Model with light sgoldstinos - scalar and pseudoscalar superparthners of goldstino - we estimate the signal rate anticipated at the lately proposed fixed target experiment SHiP utilizing CERN…

高能物理 - 唯象学 · 物理学 2016-04-21 K. O. Astapov , D. S. Gorbunov

Historically, materials such as lead, tungsten, and iron have been used in spacecraft to shield scientific detectors from Cosmic Rays. These materials work well when reentry to Earth is not an issue. The typical strategy is to have a…

仪器与探测器 · 物理学 2023-04-20 Jarred C Novak

The Mu2e experiment at Fermilab will search for the charged lepton flavour violating process of coherent neutrinoless muon-to-electron conversion in the presence of an aluminum nucleus. The muons are produced by an 8 GeV proton beam from…

We present results of calculations of the total and jet photoproduction cross sections at HERA and Fermilab energies$^1$. The calculations take into account the high-energy QCD structure of the photon and are performed for different photon…

高能物理 - 唯象学 · 物理学 2007-05-23 Ina Sarcevic

Space missions require lightweight, low-power consuming, radiation-tolerant components. Silicon photomultipliers are increasingly used for detecting near-UV, optical, and infrared light in space due to their compact design, low cost, low…

The Mu2e experiment at Fermilab proposes to search for the coherent neutrino-less conversion of muons to electrons in the presence of a nucleus. The experimental signature for an aluminum target is an isolated 105 MeV electron exiting the…

加速器物理 · 物理学 2015-11-09 S. Boi , A. Dyshkant , D. Hedin , E. Johnson , E. Prebys , P. Rubinov

The Polarisation Sky Survey of the Universe's Magnetism (POSSUM) will conduct a sensitive $\sim$1 GHz radio polarization survey covering 20 000 square degrees of the Southern sky with the Australian Square Kilometre Array Pathfinder…