The LHC Collider Ring is proposed to be turned into an ultimate automatic search engine for new physics in four consecutive phases: (1) Searches for heavy particles produced in Central Exclusive Process (CEP): pp -> p + X + p based on the existing Beam Loss Monitoring (BLM) system of the LHC; (2) Feasibility study of using the LHC Ring as a gravitation wave antenna; (3) Extensions to the current BLM system to facilitate precise registration of the selected CEP proton exit points from the LHC beam vacuum chamber; (4) Integration of the BLM based event tagging system together with the trigger/data acquisition systems of the LHC experiments to facilitate an on-line automatic search machine for the physics of tomorrow.
By combining the LHC Beam Loss Monitoring (BLM) system with the LHC experiments, a powerful search machine for new physics beyond the standard model can be realised. The pair of final state protons in the central production process, exit the LHC beam vacuum chamber at locations determined by their fractional momentum losses and will be detected by the BLM detectors. By mapping out the coincident pairs of the BLM identified proton candidates around the four LHC interaction regions, a scan for centrally produced particle states can be made independently of their decay modes.
$μ$LHC: Antimuon Ring and HL-LHC based $μ^+p$ Collider
TOBB University of Economics and Technology（TOBB经济与理工大学）；Ankara University（安卡拉大学）；Private Radikal Educational Institutions（私立Radikal教育机构）；Ankara University Institue of Accelerator Technologies（安卡拉大学加速器技术研究所）；Bursa Uludag University（布尔萨乌卢达格大学）；Turkish Accelerator and Radiation Laboratory (TARLA)（土耳其加速器和辐射实验室（TARLA））；European Organization for Nuclear Research (CERN)（欧洲核子研究组织（CERN））
At the Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN), protons and heavy ions are accelerated to velocities close to the speed of light and collided in order to study particle interactions and give us an insight to the fundamental laws of nature. The energy and intensity of the particle beams at the LHC are unprecedented, and a tremendous amount of data is collected by three experiments on the circular ring of the LHC that are specialized in proton-proton collisions. The data confirm the most successful theory of particle physics to date known as the stand…
Charged hadron production in hadron-hadron collisions with longitudinal momentum fraction Feynman-x, x_F, between 0.1 and 0.9 has not been measured above square root s = 63 GeV at the CERN Intersecting Storage Rings. I discuss a way to measure this at the Large Hadron Collider at square root s = 13 TeV, which is 40,000 times higher in equivalent fixed target energy, and important for understanding cosmic ray showers.
The Monopole and Exotics Detector at the LHC (MoEDAL) is a pioneering LHC experiment designed to search for anomalously ionizing messengers of new physics such as magnetic monopoles or massive (pseudo-)stable charged particles. These are predicted to exist in a plethora of models beyond the Standard Model. Deployed at Interaction Point 8 (IP8) along the LHC ring, MoEDAL has taken data at centre-of-mass energies of 8 and 13 TeV. Its ground breaking physics program defines over 40 scenarios that yield potentially revolutionary insights into such foundational questions as: are there extra dimensi…
Construction of future Muon Collider (or dedicated mu-ring) tangential to nucleus colliders will give opportunity to realize mu-A collisions at multi-TeV center of mass energies at a luminosity of order of 10^29-10^30 cm^-2s^-1. Obviously, such colliders will essentially enlighten fundamentals of strong interactions from quark to nucleus levels as well as clarify QCD basics. This paper is devoted to estimation of main parameters of the FCC, SppC, HL-LHC, HE-LHC and RHIC based muon-nucleus collider proposals by the software AloHEP.
Results of dedicated Monte Carlo simulations of beam-induced background (BIB) in the ATLAS experiment at the Large Hadron Collider (LHC) are presented and compared with data recorded in 2012. During normal physics operation this background arises mainly from scattering of the 4 TeV protons on residual gas in the beam pipe. Methods of reconstructing the BIB signals in the ATLAS detector, developed and implemented in the simulation chain based on the FLUKA Monte Carlo simulation package, are described. The interaction rates are determined from the residual gas pressure distribution in the LHC ri…
The performance of the ring-imaging Cherenkov detectors at the LHCb experiment is determined during the LHC Run 2 period between 2015 and 2018. The stability of the Cherenkov angle resolution and number of detected photons with time and running conditions is measured. The particle identification performance is evaluated with data and found to satisfy the requirements of the physics programme.
Results from cosmics and first LHC beam with the ALICE HMPID detector
ALICE HMPID（高动量粒子识别）探测器被设计用于识别1 < p < 3 GeV/c范围内的带电π介子和K介子以及1.5 < p < 5 GeV/c范围内的质子。它由七个相同的近距离聚焦RICH（环形成像切伦科夫）计数器组成，总面积为11平方米，利用大面积MWPC配备CsI光电阴极，用于在液体C6 F14辐射器中发射的切伦科夫光成像。从2007年12月到2008年10月，ALICE探测器已经使用宇宙学和LHC光束进行了广泛的调试。在宇宙学数据采集期间，HMPID探测器收集了大量数据，主要使用TOF探测器提供的触发器。我们在这里提出的检测器对齐使用TPC跟踪的初步结果。HMPID可以以稳定的方式运行，在安全的HV设置下，也可以在LHC束注入和循环测试期间，当达到非常大的占用率（高达50%）时。所得的增益映射和整体检测器的性能也将被讨论。
The MoEDAL experiment is designed to search for magnetic monopoles and other highly-ionising particles produced in high-energy collisions at the LHC. The largely passive MoEDAL detector, deployed at Interaction Point 8 on the LHC ring, relies on two dedicated direct detection techniques. The first technique is based on stacks of nuclear-track detectors with surface area $\sim$18 m$^2$, sensitive to particle ionisation exceeding a high threshold. These detectors are analysed offline by optical scanning microscopes. The second technique is based on the trapping of charged particles in an array o…
