Muon-Muon and Other High Energy Colliders

Proceedings of 40th International Conference on High Energy physics — PoS(ICHEP2020), 2021

A Muon Collider represents a possible option for the next generation of high-energy machines. Among the technological challenges in the realization of such a machine, the mitigation of the beam-induced background is one of the most critical issues for the experiments. At the desired instantaneous luminosity, the decay rate of the circulating muons is very high, the decay products and subsequent particles from their interactions with the machine elements can reach the detector and compromise its performance. In this contribution, the results of a first preliminary study is presented of the beam-induced background effects on the detector response in the case of muon beams collisions at a center of mass energy of 1.5 TeV and some background mitigation strategies are illustrated.

Canadian Journal of Physics, 2005

We present a method to simulate the double-gap resistive plate chambers (RPC) background particles for the endcap region of a compact muon solenoid/large hadron collider using the geometry and tracking (GEANT) code. We demonstrate that the resistive plate chamber can be described using a realistic Monte Carlo simulation based on the GEANT code and analyzed with physics analysis work station (PAW) interfaces. Sensitivity calculations were performed for γ, e–, e+, and such particles in the range 0.1–100 MeV for their respective spectra. To evaluate the response of the detector in the large hadron collider (LHC) background environment, the γ, e–, and e+ energy spectra expected in the compact muon solenoid (CMS) muon endcap region were taken into account whereas the RPC sensitivity was evaluated as a function of the detector size.PACS Nos.: 7.77.Ka, 7.85.Fv

We wish to acknowledge the extraordinary effort from a large fraction of the CMS Collaboration in producing this Technical Design Report on the preparation for physics analysis at the LHC. Subprojects in all areas were involved (Detector, PRS, Software, and Computing) in order to produce the large Monte Carlo simulation samples needed, to develop the software to analyze those samples, to perform the studies reported in this Report, and to write and review our findings. We wish to thank Roger Bailey and Mike Lamont for their assistance in matters pertaining to the LHC.

Proceedings of Technology and Instrumentation in Particle Physics 2014 — PoS(TIPP2014), 2015

2003 IEEE Nuclear Science Symposium. Conference Record (IEEE Cat. No.03CH37515), 2003

We present here the first direct and detailed measurements of the spatial distribution of the ionizing radiation surrounding a hadron collider experiment. Using data from two different exposures we measure the effect of additional shielding on the radiation field around the Collider Detector at Fermilab (CDF). Employing a simple model we parameterize the ionizing radiation field surrounding the detector.

2016

IEEE, 2019

The selection of stimulus contents for neurofeedback has direct implications on the efficacy of neurofeedback therapy. In particular, a suitable selection of stimulus contents facilitates the achievement of sustainability during neurofeedback sessions, which has been considered challenging during clinical practice. To further elaborate this point, this research investigates the efficacy of different neurofeedback stimulus contents (audio, video, and games) for stress mitigation. The effectiveness of the contents was measured by statistically comparing quantitative electroencephalogram (QEEG) features, such as alpha power and alpha asymmetry before and after neurofeedback sessions. In addition, the topographic maps of activities were constructed for a visual description. In this study, 29 study participants were recruited, and the EEG data were recorded during multiple neurofeedback sessions. ANOVA and post hoc testing verified the statistical significance of the results of the various stimulus contents, whereas a t-test verified the significance of stress mitigation because of neurofeedback. The results indicate that games exhibit higher effectiveness than audio and video contents for stress mitigation. In addition, the topographic analysis demonstrates the efficacy of neurofeedback training for stress mitigation. In conclusion, the effects of neurofeedback therapy could be enhanced while selecting suitable stimulus contents for neurofeedback protocols.

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