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We conduct a combined analysis to investigate dark matter (DM) with hypercharge anapole moments, focusing on scenarios where Majorana DM particles with spin 1/2, 1, 3/2, and 2 interact exclusively with Standard Model particles through…

High Energy Physics - Phenomenology · Physics 2024-03-28 Seong Youl Choi , Jaehoon Jeong , Dong Woo Kang , Seodong Shin

A search is presented for free heavy long-lived fractionally charged particles produced in pp collisions at sqrt(s) = 7 TeV. The data sample was recorded by the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0…

High Energy Physics - Experiment · Physics 2013-06-05 CMS Collaboration

The Micro-Pattern Gaseous Detectors (MPGD) have been widely adopted in nuclear and particle physics experiments, for their fast response and other excellent characteristics. To achieve the required signal strength and detection efficiency,…

Instrumentation and Detectors · Physics 2020-08-26 Deb Sankar Bhattacharya , Raimund Ströhmer , Thomas Trefzger

The features of the NA62 experiment at the CERN SPS (high intensity setup, trigger system flexibility, high frequency tracking of beam particles, redundant particle identification, and high-efficiency photon vetoes) make NA62 particularly…

High Energy Physics - Experiment · Physics 2019-10-24 Roberta Volpe

The conventional way to search for long-lived CHArged Massive Particles (CHAMPs) is to identify slow (small $\beta$) tracks using delayed time of flight and high ionization energy loss. But at the 7-14 TeV center of mass energy of the LHC,…

High Energy Physics - Phenomenology · Physics 2010-05-12 Jie Chen , Todd Adams

We investigate the sensitivity of the Large Hadron Collider to supersymmetric setups using monotop probes in which the signal is a single top quark produced in association with missing transverse energy. Our prospective study relies on…

High Energy Physics - Phenomenology · Physics 2015-07-09 Benjamin Fuks , Peter Richardson , Alexandra Wilcock

A normal pressure MWPC for beam diagnostics at RIBLL2 has been developed, which has a sensitive area of 80 mm$\times$80 mm and consists of three-layer wire planes. The anode plane is designed with a wider frame to reduce the discharge and…

Instrumentation and Detectors · Physics 2015-06-16 Shu-Wen Tang , Peng Ma , Li-Min Duan , Zhi-Yu Sun , Chen-Gui Lu , He-Run Yang , Rong-Jiang Hu , Wen-Xue Huang , Hu-Shan Xu

MiniCACTUS is a monolithic sensor prototype optimised for timing measurement of charged particles. It has been designed in a standard 150 nm CMOS process without dedicated amplification layer. It is intended as a demonstrator chip for…

Instrumentation and Detectors · Physics 2023-09-18 Yavuz Degerli , Fabrice Guilloux , Tomasz Hemperek , Jean-Pierre Meyer , Philippe Schwemling

We describe the application of nanoelectromechanical systems (NEMS) to ultrasensitive mass detection. In these experiments, a modulated flux of atoms was adsorbed upon the surface of a 32.8 MHz NEMS resonator within an ultrahigh vacuum…

Other Condensed Matter · Physics 2009-11-10 K. L. Ekinci , X. M. H. Huang , M. L. Roukes

Axion-like particles (ALPs), the QCD axion, and dark photons in the MeV-GeV mass range are motivated by various dark matter models and the strong CP problem, and are ubiquitous in extensions of the Standard Model. A long-standing blind spot…

High Energy Physics - Phenomenology · Physics 2026-04-20 Sarah Gaiser , Alessandro Russo , Philip Schuster

New Micromegas (Micro-mesh gaseous detectors) are being developed in view of the future physics projects planned by the COMPASS collaboration at CERN. Several major upgrades compared to present detectors are being studied: detectors…

We discuss the possibility of a laboratory search for light minicharged particles carrying electric charge that is a small fraction $\epsilon$ of that of electron. We point out that the production of pairs of such particles in an electric…

High Energy Physics - Phenomenology · Physics 2015-06-18 Xin Li , M. B. Voloshin

The PandaX project consists of a series of xenon-based experiments that are used to search for dark matter (DM) particles and to study the fundamental properties of neutrinos. The next DM experiment PandaX-4T will be using 4 ton liquid…

Instrumentation and Detectors · Physics 2020-12-15 Qibin Zheng , Yanlin Huang , Di Huang , Jianglai Liu , Xiangxiang Ren , Anqing Wang , Meng Wang , Jijun Yang , Binbin Yan , Yong Yang

In this paper, the application of non-binary low-density parity-check (NBLDPC) codes to MIMO systems which employ hundreds of antennas at both the transmitter and the receiver has been proposed. Together with the well-known low-complexity…

Information Theory · Computer Science 2012-11-22 Puripong Suthisopapan , Kenta Kasai , Anupap Meesomboon , Virasit Imtawil

Dark photons are predicted by various new physics models, and are being intensively studied in a variety of experiments. In the first part of this paper, we obtain partial wave unitarity constraints on the dark photon parameter space from…

High Energy Physics - Phenomenology · Physics 2024-10-25 Yasaman Hosseini , Mojtaba Mohammadi Najafabadi

We present the performance of multiplexed XY resistive Micromegas detectors tested in the CERN SPS 100 GeV/c electron beam at intensities up to 3.3 $\times$ 10$^5$ e$^- $/(s$\cdot$cm$^2$). So far, all studies with multiplexed Micromegas…

A new gas detector prototype for the upgrade of the focal plane detector of the MAGNEX large-acceptance magnetic spectrometer has been developed and tested in view of the NUMEN project. It has been designed to operate at low gas pressure…

A terrestrial population of room-temperature millicharged particles can arise if they make up a dark matter subcomponent or if they are light enough to be produced in cosmic ray air showers. In a companion paper, we showed that a simple…

High Energy Physics - Phenomenology · Physics 2025-10-31 Asher Berlin , Zachary Bogorad , Peter W. Graham , Harikrishnan Ramani

In recent years, the sensitivity of opto-mechanical force sensors has improved leading to increased interest in using these devices as particle detectors. In this study we consider scenarios where dark matter with mass close to the Planck…

High Energy Physics - Phenomenology · Physics 2022-12-09 Carlos Blanco , Bahaa Elshimy , Rafael F. Lang , Robert Orlando