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Collider experiments are equipped with trigger systems that rapidly inspect the physics content emerging from collisions to decide whether the resulting products are worth saving for later analysis. One crucial aspect for analyzing the…

高能物理 - 实验 · 物理学 2026-04-14 Andrea Coccaro , Carlo Schiavi , Alessandro Zaio

Direct searches for electroweak pair production of new particles at the LHC are a difficult proposition, due to the large background and low signal cross sections. We demonstrate how these searches can be improved by a combination of new…

高能物理 - 唯象学 · 物理学 2014-03-26 Matthew R. Buckley , Joseph D. Lykken , Christopher Rogan , Maria Spiropulu

Tracking is one of the most time consuming aspects of event reconstruction at the Large Hadron Collider (LHC) and its high-luminosity upgrade (HL-LHC). Innovative detector technologies extend tracking to four-dimensions by including timing…

仪器与探测器 · 物理学 2021-11-12 Patrick J. Fox , Shangqing Huang , Joshua Isaacson , Xiangyang Ju , Benjamin Nachman

Future e$^+$e$^-$ colliders, thanks to their clean environment and triggerless operation, offer a unique opportunity to search for long-lived particles (LLPs). Considered in this contribution are promising prospects for LLP searches offered…

高能物理 - 实验 · 物理学 2023-11-01 Jan Klamka

Accurate determination of particle track reconstruction parameters will be a major challenge for the High Luminosity Large Hadron Collider (HL-LHC) experiments. The expected increase in the number of simultaneous collisions at the HL-LHC…

We present a new technique for pixel hit reconstruction with the CMS pixel detector. The technique is based on fitting the pixel cluster projections to templates obtained using a detailed simulation called Pixelav. Pixelav successfully…

仪器与探测器 · 物理学 2019-08-13 Gavril A. Giurgiu

The planned upgrade of the CMS detector for the High Luminosity LHC allows to find tracks in the silicon tracker for every single LHC collision and use them in the first level (hardware) trigger decision. So far, studies by CMS…

高能物理 - 唯象学 · 物理学 2017-08-30 Yuri Gershtein

Recent advances in segmented solid-state detector arrays for rare-event searches have allowed the technology to approach the ton-scale in detector mass and the scale of meters in size. Often focused around searches for neutrinoless…

仪器与探测器 · 物理学 2022-07-07 J. Yocum , D. Mayer , J. L. Ouellet , L. Winslow

Significant progress has been made to develop silicon pixel technologies for use in the vertex and tracker regions of the proposed Compact Linear Collider (CLIC) detector design. The electron-positron collisions generated by this linear…

仪器与探测器 · 物理学 2020-04-22 Morag Williams

We propose an improved discriminative model prediction method for robust long-term tracking based on a pre-trained short-term tracker. The baseline pre-trained short-term tracker is SuperDiMP which combines the bounding-box regressor of…

计算机视觉与模式识别 · 计算机科学 2020-08-26 Seokeon Choi , Junhyun Lee , Yunsung Lee , Alexander Hauptmann

Displaced vertices are relatively unusual signatures for dark matter searches at the LHC. We revisit the model of pseudo-Dirac dark matter (pDDM), which can accommodate the correct relic density, evade direct detection constraints, and…

高能物理 - 唯象学 · 物理学 2018-06-25 Alessandro Davoli , Andrea De Simone , Thomas Jacques , Verónica Sanz

We propose a program at B-factories of inclusive, multi-track displaced vertex searches, which are expected to be low background and give excellent sensitivity to non-minimal hidden sectors. Multi-particle hidden sectors often include…

高能物理 - 唯象学 · 物理学 2021-10-19 Mason Acevedo , Albany Blackburn , Nikita Blinov , Brian Shuve , Mavis Stone

We demonstrate that neural networks can be used to improve search strategies, over existing strategies, in LHC searches for light electroweak-charged scalars that decay to a muon and a heavy invisible fermion. We propose a new search…

高能物理 - 唯象学 · 物理学 2025-01-23 Alan S. Cornell , Benjamin Fuks , Mark D. Goodsell , Anele M. Ncube

High-energy physics experiments rely on reconstruction of the trajectories of particles produced at the interaction point. This is a challenging task, especially in the high track multiplicity environment generated by p-p collisions at the…

计算机视觉与模式识别 · 计算机科学 2017-12-06 Maxim Borisyak , Andrey Ustyuzhanin , Denis Derkach , Mikhail Belous

Correlation filter plays a major role in improved tracking performance compared to existing trackers. The tracker uses the adaptive correlation response to predict the location of the target. Many varieties of correlation trackers were…

计算机视觉与模式识别 · 计算机科学 2018-05-10 Lasitha Mekkayil , Hariharan Ramasangu

One of the most important problems of data processing in high energy and nuclear physics is the event reconstruction. Its main part is the track reconstruction procedure which consists in looking for all tracks that elementary particles…

机器学习 · 计算机科学 2019-10-02 Dmitriy Baranov , Sergey Mitsyn , Pavel Goncharov , Gennady Ososkov

Adding a fermion to the standard model particle content which is a fiveplet under $SU(2)_L$ gives a dark matter candidate. The lightest state in the multiplet is neutral and automatically stable. The charged component of the multiplet is…

高能物理 - 唯象学 · 物理学 2015-09-16 Bryan Ostdiek

To detect tracks of charged particles close to the interaction point in high energy physics experiments of the next generation colliders, hybrid pixel detectors, in which sensor and read-out IC are separate entities, constitute the present…

仪器与探测器 · 物理学 2010-01-22 N. Wermes

Collider signals of dark photons are an exciting probe for new gauge forces and are characterized by events with boosted lepton jets. Existing techniques are efficient in searching for muonic lepton jets but due to substantial backgrounds…

高能物理 - 唯象学 · 物理学 2017-03-15 G. Barello , Spencer Chang , Christopher A. Newby , Bryan Ostdiek

Highly granular pixel detectors allow for increasingly precise measurements of charged particle tracks. Next-generation detectors require that pixel sizes will be further reduced, leading to unprecedented data rates exceeding those foreseen…