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Related papers: Local Alignment of the BABAR Silicon Vertex Tracki…

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As particle physics experiments evolve to achieve higher energies and resolutions, handling the massive data volumes produced by silicon pixel detectors, which are used for charged particle tracking, poses a significant challenge. To…

Instrumentation and Detectors · Physics 2024-09-24 Tupendra Oli , Wilkie Olin-Ammentorp , Xingfu Wu , Justin H. Qian , Vinod K. Sangwan , Mark C. Hersam , Salman Habib , Valerie Taylor

The BABAR detector operated successfully at the PEP-II asymmetric e+e- collider at the SLAC National Accelerator Laboratory from 1999 to 2008. This report covers upgrades, operation, and performance of the collider and the detector systems,…

Instrumentation and Detectors · Physics 2013-09-18 The BABAR Collaboration

We attempt to measure possible miscalibration of the wavelength scale of the VLT-UVES spectrograph. We take spectra of QSO HE0515-4414 through the UVES iodine cell which contains thousands of well-calibrated iodine lines and compare these…

Instrumentation and Methods for Astrophysics · Physics 2015-05-18 Jonathan B. Whitmore , Michael T. Murphy , Kim Griest

The undulator line of the Shanghai soft X-ray Free-electron Laser facility (SXFEL) has very tight tolerances on the straightness of the electron beam trajectory. However, the beam trajectory cannot meet the lasing requirements due to the…

Accelerator Physics · Physics 2021-08-27 Liang Xu , Nanshun Huang , Qingmin Zhang , Duan Gu , Haixiao Deng

Airborne magnetometry requires rigorous calibration to isolate geomagnetic signals from sensor errors and platform magnetic fields. This magnetic compensation is needed for applications like geophysical exploration and magnetic anomaly…

Quantum Physics · Physics 2026-05-07 Antonia Hager , Torleiv H. Bryne , Mia Jukić

The SABRE (Sodium iodide with Active Background REjection) experiment aims to detect an annual rate modulation from dark matter interactions in ultra-high purity NaI(Tl) crystals which will provide a model independent test of the signal…

High Energy Physics - Experiment · Physics 2025-11-21 L. J. Milligan

The Scientific objectives of the LOFT mission, e.g., the study of the Neutron Star equation of state and of the Strong Gravity, require accurate energy, time and flux calibration for the 500k channels of the SDD detectors, as well as the…

The Optically Segmented Single Volume Scatter Camera (OS-SVSC) aims to image neutron sources for nuclear non-proliferation applications using the kinematic reconstruction of elastic double-scatter events. We report on the design,…

The sPHENIX collaboration has been taking data since 2023 at the Relativistic Heavy Ion Collider in BNL to study the Quark-Gluon Plasma and cold Quantum Chromodynamics (QCD). The tracking system of sPHENIX consists of a time projection…

Instrumentation and Detectors · Physics 2025-08-12 Cheng-Wei Shih

The central component of the CMS detector is the largest silicon tracker ever built. The precise alignment of this complex device is a formidable challenge, and only achievable with a significant extension of the technologies routinely used…

Instrumentation and Detectors · Physics 2014-08-22 CMS Collaboration

Knowledge of the material in the ATLAS inner tracking detector is crucial in understanding the reconstruction of charged-particle tracks, the performance of algorithms that identify jets containing b-hadrons and is also essential to reduce…

High Energy Physics - Experiment · Physics 2017-01-10 ATLAS Collaboration

Visual-Inertial (VI) sensors are popular in robotics, self-driving vehicles, and augmented and virtual reality applications. In order to use them for any computer vision or state-estimation task, a good calibration is essential. However,…

Computer Vision and Pattern Recognition · Computer Science 2023-09-27 Christopher L. Choi , Binbin Xu , Stefan Leutenegger

While critical for alignment, Supervised Fine-Tuning (SFT) incurs the risk of catastrophic forgetting, yet the layer-wise emergence of instruction-following capabilities remains elusive. We investigate this mechanism via a comprehensive…

Machine Learning · Computer Science 2026-04-15 Qinghua Zhao , Xueling Gong , Xinyu Chen , Zhongfeng Kang , Xinlu Li

Beam alignment (BA) in modern millimeter wave standards such as 5G NR and WiGig (802.11ay) is based on exhaustive and/or hierarchical beam searches over pre-defined codebooks of wide and narrow beams. This approach is slow and…

Information Theory · Computer Science 2024-03-26 Yuqiang Heng , Yu Zhang , Ahmed Alkhateeb , Jeffrey G. Andrews

Global spin alignment of vector mesons is a sensitive probe of system vorticity and particle production mechanism in relativistic heavy ion collisions. The measurement of global spin alignment is gaining increasing interest and deserves…

Nuclear Experiment · Physics 2018-10-25 A. H. Tang , B. Tu , C. S. Zhou

We present the recent development of a lightweight detector capable of accurate spatial, timing, and amplitude resolution of charged particles. The technology is based on double-sided double-metal p+\,--\,n\,--\,n+ micro-strip silicon…

Two-directional beam-tracking (2DBT) is a method for phase-contrast imaging and tomography that uses an intensity modulator to structure the X-ray beam into an array of independent circular beamlets that are resolved by a high-resolution…

We present a parton-level study of electro-weak production of vector-boson pairs at the Large Hadron Collider, establishing the sensitivity to a set of dimension-six operators in the Standard Model Effective Field Theory (SMEFT). Different…

We have developed a 230 and 345 GHz very-long-baseline interferometry (VLBI) receiver for the South Pole Telescope (SPT). With the receiver installed, the SPT has joined the global Event Horizon Telescope (EHT) array. The receiver optics…

Instrumentation and Methods for Astrophysics · Physics 2018-09-25 Junhan Kim , Daniel P. Marrone

As the globalization of semiconductor design and manufacturing processes continues, the demand for defect detection during integrated circuit fabrication stages is becoming increasingly critical, playing a significant role in enhancing the…

Computer Vision and Pattern Recognition · Computer Science 2023-11-23 Qiyu Wei , Wei Zhao , Xiaoyan Zheng , Zeng Zeng