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Measuring bipartite fluctuations of a conserved charge, such as the particle number, is a powerful approach to understanding quantum systems. When the measured region has sharp corners, the bipartite fluctuation receives an additional…

Mesoscale and Nanoscale Physics · Physics 2025-01-14 Pok Man Tam , Jonah Herzog-Arbeitman , Jiabin Yu

Gas Electron Multiplier (GEM) detectors, typically featuring a standard pitch size of 140 $\mu$m and an inner hole diameter of 50 $\mu$m, are extensively utilized in high-energy physics experiments for tracking, triggering, and timing…

High Energy Physics - Experiment · Physics 2025-05-07 Rajiv Gupta , Gauri Devi , Sunidhi Saxena , Arpit Singh , Ajay Kumar

As a new member of GECAM mission, the GECAM-C (also called High Energy Burst Searcher, HEBS) is a gamma-ray all-sky monitor onboard SATech-01 satellite, which was launched on July 27th, 2022 to detect gamma-ray transients from 6 keV to 6…

It is discovered that the tokamak field geometry generates a pitch-angle scattering effect for runaway electrons. This neoclassical pitch-angle scattering is much stronger than the collisional scattering and invalidates the gyro-center…

Plasma Physics · Physics 2016-06-22 Jian Liu , Yulei Wang , Hong Qin

Inclusive momentum spectra and multiplicity distributions of charged particles measured with BESII detector at center of mass energies of 2.2,2.6,3.0,3.2,4.6 and 4.8 GeV are presented. Values of the second binomial moment, $R_2$, obtained…

High Energy Physics - Experiment · Physics 2009-11-10 BES Collaboration , J. Z. Bai

When searching for anisotropies in the arrival directions of Ultra High Energy Cosmic Rays, one must estimate the number of events expected in each direction of the sky in the case of a perfect isotropy. We present in this article a new…

Astrophysics · Physics 2012-08-27 The Pierre Auger Collaboration

High energy gamma-ray astronomy has been established during the last decade through the launch of the Compton Gamma Ray Observatory (CGRO) and the success of its ground-based counterpart, the imaging atmospheric Cherenkov technique. In the…

Astrophysics · Physics 2009-10-31 Frank Krennrich

A large volume Time Projection Chamber (TPC) is being considered for the central charged particle tracker for the detector for the proposed International Linear Collider (ILC). To meet the ILC-TPC spatial resolution challenge of ~100…

Instrumentation and Detectors · Physics 2008-11-26 K. Boudjemline , M. S. Dixit , J. -P. Martin , K. Sachs

A honeycomb detector consisting of a matrix of 96 closely packed hexagonal cells, each working as a proportional counter with a wire readout, was fabricated and tested at the CERN PS. The cell depth and the radial dimensions of the cell…

We have mapped the total sky brightness at 1465 MHz in two adjacent 60-degree declination bands with the portable 5.5-m parabolic reflector of the Galactic Emission Mapping (GEM) project, an on-going international collaboration to survey…

Astrophysics · Physics 2007-05-23 C. Tello , T. Villela , G. F. Smoot , S. Torres , M. Bersanelli

For the sake of complete theoretical research of atmospheric refraction, the atmospheric refraction under the condition of lower angles of elevation is still worthy to be analyzed and explored. In some engineering applications, the objects…

Instrumentation and Methods for Astrophysics · Physics 2015-10-14 Yong Yu , Jian-Jun Cao , Zheng-Hong Tang , Hao Luo , Ming Zhao

The primary aim of ANTARES is neutrino astronomy with upward going muons created in charged current muon neutrino interactions in the detector and its surroundings. Downward going muons are background for neutrino searches. These muons are…

Instrumentation and Methods for Astrophysics · Physics 2016-08-14 J. A. Aguilar , I. Al. Samarai , A. Albert , M. André , M. Anghinolfi , G. Anton , S. Anvar , M. Ardid , A. C. Assis Jesus , T. Astraatmadja , J. J. Aubert , B. Baret , S. Basa , V. Bertin , S. Biagi , A. Bigi , C. Bigongiari , C. Bogazzi , M. Bou-Cabo , B. Bouhou , M. C. Bouwhuis , J. Brunner , J. Busto , F. Camarena , A. Capone , C. Carloganu , G. Carminati , J. Carr , S. Cecchini , Z. Charif , P. Charvis , T. Chiarusi , M. Circella , R. Coniglione , H. Costantini , P. Coyle , C. Curtil , M. P. Decowski , I. Dekeyser , A. Deschamps , C. Distefano , C. Donzaud , D. Dornic , Q. Dorosti , D. Drouhin , T. Eberl , U. Emanuele , A. Enzenhöfer , J. P. Ernenwein , S. Escoffier , P. Fermani , M. Ferri , V. Flaminio , F. Folger , U. Fritsch , J. L. Fuda , S. Galatà , P. Gay , G. Giacomelli , V. Giordano , J. P. Gómez-González , K. Graf , G. Guillard , G. Halladjian , G. Hallewell , H. van Haren , J. Hartman , A. J. Heijboer , Y. Hello , J. J. Hernández-Rey , B. Herold , J. Hößl , C. C. Hsu , M. de Jong , M. Kadler , O. Kalekin , A. Kappes , U. Katz , O. Kavatsyuk , P. Kooijman , C. Kopper , A. Kouchner , I. Kreykenbohm , V. Kulikovskiy , R. Lahmann , P. Lamare , G. Larosa , D. Lattuada , D. Lefèvre , G. Lim , D. Lo Presti , H. Loehner , S. Loucatos , S. Mangano , M. Marcelin , A. Margiotta , J. A. Martinez-Mora , A. Meli , T. Montaruli , L. Moscoso , H. Motz , M. Neff , E. Nezri , D. Palioselitis , G. E. Păvălaş , K. Payet , P. Payre , J. Petrovic , P. Piattelli , N. Picot-Clemente , V. Popa , T. Pradier , E. Presani , C. Racca , C. Reed , C. Richardt , R. Richter , C. Rivière , A. Robert , K. Roensch , A. Rostovtsev , J. Ruiz-Rivas , M. Rujoiu , G. V. Russo , F. Salesa , P. Sapienza , F. Schöck , J. P. Schuller , F. Schüssler , R. Shanidze , F. Simeone , A. Spies , M. Spurio , J. J. M. Steijger , T. Stolarczyk , A. Sánchez-Losa , M. Taiuti , C. Tamburini , S. Toscano , B. Vallage , V. Van Elewyck , G. Vannoni , M. Vecchi , P. Vernin , G. Wijnker , J. Wilms , E. de Wolf , H. Yepes , D. Zaborov , J. D. Zornoza , J. Zúñiga

A measurement of event-shape variables is presented, using a data sample produced in a special run with approximately one inelastic proton-proton collision per bunch crossing. The data were collected with the CMS detector at a…

High Energy Physics - Experiment · Physics 2025-12-16 CMS Collaboration

We employ ptychography, a phase-retrieval imaging technique, to show experimentally for the first time that a partially coherent high-energy matter (electron) wave emanating from an extended source can be decomposed into a set of mutually…

Mesoscale and Nanoscale Physics · Physics 2017-01-04 S. Cao , P. Kok , P. Li , A. M. Maiden , J. M. Rodenburg

The Beam Loss Monitors (BLM) are designed to measure the position and amount of beam loss in accelerators. In this article, we have studied the 3 GeV electron losses in the storage ring and secondary particles from the losses on the beam…

Accelerator Physics · Physics 2021-01-12 Seyed Morteza Esmaeili , Seyed Amir Hossein Feghhi

Time projection chambers (TPCs) are widely used in nuclear and particle physics. They are particularly useful when measuring reaction products from heavy ion collisions. Most nuclear experiments at low energy are performed in a fixed target…

We studied the feasibility of an experiment searching for sub-millicharged particles ($\chi$s) using 30 GeV proton fixed-target collisions at J-PARC. The detector is composed of two layers of stacked scintillator bars and PMTs and is…

High Energy Physics - Experiment · Physics 2021-05-19 Jeong Hwa Kim , In Sung Hwang , Jae Hyeok Yoo

The evolution of particle detectors has always pushed the technological limit in order to provide enabling technologies to researchers in all fields of science. One archetypal example is the evolution of silicon detectors, from a system…

Instrumentation and Detectors · Physics 2017-07-04 Hartmut F. -W. Sadrozinski , Abraham Seiden , Nicolò Cartiglia

Current and next-generation particle tracking detectors will incorporate precision timing capabilities with resolutions approaching tens of picoseconds. Using Technology Computer-Aided Design (TCAD) simulations of Low-Gain Avalanche Diode…

The total area of silicon in cell phone camera sensors worldwide surpasses that in any experiment to date. Based on semiconductor technology similar to that found in modern astronomical telescopes and particle detectors, these sensors can…

Instrumentation and Methods for Astrophysics · Physics 2017-08-07 Matthew Meehan , Silvia Bravo , Felipe Campos , Jeffrey Peacock , Tyler Ruggles , Cassidy Schneider , Ariel Levi Simons , Justin Vandenbroucke , Miles Winter