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The reconstruction of electrons and photons in CMS depends on topological clustering of the energy deposited by an incident particle in different crystals of the electromagnetic calorimeter (ECAL). These clusters are formed by aggregating…

High Energy Physics - Experiment · Physics 2023-03-01 Davide Valsecchi

The krypton electroluminescence yield was studied, at room temperature, as a function of electric field in the gas scintillation gap. A large area avalanche photodiode has been used to allow the simultaneous detection of the…

Instrumentation and Detectors · Physics 2021-02-02 R. D. P. Mano , C. A. O. Henriques , F. D. Amaro , C. M. B. Monteiro

We propose that the finite size of the Kondo screening cloud, xi_K, can be probed by measuring the charge quantization in a one-dimensional system coupled to a small quantum dot. When the chemical potential, mu in the system is varied at…

Strongly Correlated Electrons · Physics 2008-03-20 Rodrigo G. Pereira , Nicolas Laflorencie , Ian Affleck , Bertrand I. Halperin

Dual-phase liquid xenon time projection chambers are the core detector elements of many experiments that conduct searches for Dark Matter and rare events, as well as in neutrino and high-energy physics. As part of this detector technology,…

The NEXT experiment aims at searching for the hypothetical neutrinoless double-beta decay from the ${}^{136}$Xe isotope using a high-purity xenon TPC. Efficient discrimination of the events through pattern recognition of the topology of…

$Context.$ The traditional approach to characterize the structure of molecular clouds is to map their line emission. $Aims.$ We aim to test and apply a stratified random sampling technique that can characterize the line emission from…

Astrophysics of Galaxies · Physics 2021-02-17 M. Tafalla , A. Usero , A. Hacar

We present a comprehensive analysis of electronic recoil vs. nuclear recoil discrimination in liquid/gas xenon time projection chambers, using calibration data from the 2013 and 2014-16 runs of the Large Underground Xenon (LUX) experiment.…

We create laterally large and low disorder quantum well based quantum dots to study single electron additions to two dimensional electron systems (2DES). Electrons tunnel into these dots across an AlGaAs tunnel barrier from a single $n+$…

Mesoscale and Nanoscale Physics · Physics 2021-06-30 Ahmet Demir , Neal Staley , Samuel Aronson , Spencer Tomarken , Ken West , Kirk Baldwin , Loren Pfeiffer , Raymond Ashoori

We report the experimental generation, acceleration and characterization of a uniformly-filled electron bunch obtained via space-charge-driven expansion (often referred to as "blow-out regime") in an L-band (1.3-GHz) radiofrequency…

Accelerator Physics · Physics 2013-04-02 P. Piot , Y. -E Sun , T. J. Maxwell , J. Ruan , E. Secchi , J. C. T. Thangaraj

In semiconductors, quantum confinement can greatly enhance the interaction between band carriers (electrons and holes) and dopant atoms. One manifestation of this enhancement is the increased stability of exciton magnetic polarons in…

Mesoscale and Nanoscale Physics · Physics 2017-04-27 W. D. Rice , W. Liu , V. Pinchetti , D. R. Yakovlev , V. I. Klimov , S. A. Crooker

We present synthetic line observations of a simulated molecular cloud, utilising a self-consistent treatment of the dynamics and time-dependent chemical evolution. We investigate line emission from the three most common CO isotopologues…

Astrophysics of Galaxies · Physics 2024-06-12 F. D. Priestley , P. C. Clark , S. C. O. Glover , S. E. Ragan , O. Fehér , L. R. Prole , R. S. Klessen

Recent observations from the MUSTANG2 instrument on the Green Bank Telescope have revealed evidence of enhanced long-wavelength emission in the dust spectral energy distribution (SED) in the Orion Molecular Cloud (OMC) 2/3 filament on 25"…

Observations of the properties of dense molecular clouds are critical in understanding the process of star-formation. One of the most important, but least understood, is the role of the magnetic fields. We discuss the possibility of using…

High Energy Astrophysical Phenomena · Physics 2014-12-16 A. W. Strong , C. Dickinson , E. J. Murphy

We use detailed numerical simulations of the coupled chemical, thermal and dynamical evolution of the gas in a turbulent molecular cloud to study the usefulness of the [CI] 609 micron and 370 micron fine structure emission lines as tracers…

Astrophysics of Galaxies · Physics 2015-06-19 Simon C. O. Glover , Paul C. Clark , Milica Micic , Faviola Molina

Charge amplification in liquids could provide single-phase xenon time projection chambers with background discrimination and fiducialisation capabilities similar to those found in dual-phase detectors. Although efforts to achieve the high…

Instrumentation and Detectors · Physics 2024-01-05 P. Knights , H. Sekiya , I. Katsioulas , K. Nikolopoulos , K. Kanzawa , I. Giomataris

To explore the feasibility of high-precision particle identification using the cluster counting technique for the drift chamber, a dedicated readout electronics system with low noise, high bandwidth, and high sampling rate is required. This…

Instrumentation and Detectors · Physics 2026-03-31 Dongcheng Cai , Qicai Li , Mingyi Dong , Weile Gong , Mengyang Ji , Hongbin Liu , Wenyu Pan , Linghui Wu , Dewei Xu , Yimie Yuan , Hongyu Zhang , Guang Zhao , Yubin Zhao

In this paper, we investigate the extent to which observations of molecular clouds can correctly identify and measure star-forming clumps. We produced a synthetic column density map and a synthetic spectral-line data cube from the simulated…

Astrophysics of Galaxies · Physics 2012-08-23 Rachel L. Ward , James Wadsley , Alison Sills , Nicolas Petitclerc

A conceptual scheme of a hybrid-emulsion spectrometer for investigating various channels of neutrino oscillations is proposed. The design emphasizes detection of $\tau$ leptons by detached vertices, reliable identification of electrons, and…

High Energy Physics - Experiment · Physics 2009-10-31 A. E. Asratyan , G. V. Davidenko , A. G. Dolgolenko , V. S. Kaftanov , M. A. Kubantsev , V. S. Verebryusov

The unusual properties of two-dimensional electron systems that give rise to the quantum Hall effect have prompted the development of new microscopic models for electrical conduction. The bulk properties of the quantum Hall effect have also…

Mesoscale and Nanoscale Physics · Physics 2008-04-12 S. H. Tessmer , P. I. Glicofridis , R. C. Ashoori , L. S. Levitov , M. R. Melloch

W-based granular metals have been prepared by electron beam induced deposition from the tungsten-hexacarbonyl W(CO)6 precursor. In situ electrical conductivity measurements have been performed to monitor the growth process and to…

Materials Science · Physics 2015-05-13 F. Porrati , R. Sachser , M. Huth